| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include <iostream> | ||
| 2 | #include <vector> | ||
| 3 | #include <functional> | ||
| 4 | #include <string> | ||
| 5 | #include <optional> | ||
| 6 | #include <set> | ||
| 7 | #include <map> | ||
| 8 | #include <list> | ||
| 9 | #include <deque> | ||
| 10 | #include <unordered_set> | ||
| 11 | #include <unordered_map> | ||
| 12 | |||
| 13 | #include "TestCommon.h" | ||
| 14 | |||
| 15 | using CXXIter::SizeHint; | ||
| 16 | |||
| 17 | // ################################################################################################ | ||
| 18 | // CHAINERS | ||
| 19 | // ################################################################################################ | ||
| 20 | 8 | TEST(CXXIter, cast) { | |
| 21 | { // sizeHint | ||
| 22 |
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2 | std::vector<float> input = {1.35, 56.123}; |
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2 | SizeHint sizeHint = CXXIter::from(input).cast<double>().sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 27 | { | ||
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2 | std::vector<float> input = {1.35, 56.123}; |
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2 | std::vector<double> output = CXXIter::from(input) |
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2 | .cast<double>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(input.size(), output.size()); |
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6 | for(size_t i = 0; i < input.size(); ++i) { ASSERT_NEAR(input[i], output[i], 0.000005); } |
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2 | } |
| 35 | } | ||
| 36 | |||
| 37 | 8 | TEST(CXXIter, copied) { | |
| 38 | { // sizeHint | ||
| 39 |
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2 | std::vector<float> input = {1.35, 56.123}; |
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2 | SizeHint sizeHint = CXXIter::from(input).copied().sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 44 | { // copied | ||
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10 | std::vector<std::string> input = {"inputString1", "inputString2"}; |
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2 | std::vector<std::string> output = CXXIter::from(input) |
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2 | .copied() // clone values, now working with owned copies instead of references to input |
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4 | .modify([](std::string& item) { item[item.size() - 1] += 1; }) // modify copies, input untouched |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(2, output.size()); |
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2 | ASSERT_THAT(input, ElementsAre("inputString1", "inputString2")); |
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2 | ASSERT_THAT(output, ElementsAre("inputString2", "inputString3")); |
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2 | } |
| 54 | { // uncopied | ||
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10 | std::vector<std::string> input = {"inputString1", "inputString2"}; |
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2 | std::vector<std::string> output = CXXIter::from(input) |
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4 | .modify([](std::string& item) { item[item.size() - 1] += 1; }) // modify |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(2, output.size()); |
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2 | ASSERT_THAT(input, ElementsAre("inputString2", "inputString3")); |
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2 | ASSERT_THAT(output, ElementsAre("inputString2", "inputString3")); |
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2 | } |
| 63 | } | ||
| 64 | |||
| 65 | 8 | TEST(CXXIter, indexed) { | |
| 66 | { | ||
| 67 |
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12 | std::vector<std::string> input = {"1337", "42", "64"}; |
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2 | std::vector<std::pair<size_t, std::string&>> output = CXXIter::from(input) |
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2 | .indexed() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output, ElementsAre(Pair(0, "1337"), Pair(1, "42"), Pair(2, "64"))); |
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2 | } |
| 74 | { | ||
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12 | std::vector<std::string> input = {"1337", "42", "64"}; |
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2 | std::vector<std::pair<size_t, std::string>> output = CXXIter::from(std::move(input)) |
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4 | .indexed() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output, ElementsAre(Pair(0, "1337"), Pair(1, "42"), Pair(2, "64"))); |
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2 | } |
| 82 | } | ||
| 83 | |||
| 84 | 8 | TEST(CXXIter, flagLast) { | |
| 85 | { // sizeHint | ||
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2 | std::vector<float> input = {1.35, 56.123}; |
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2 | SizeHint sizeHint = CXXIter::from(input).flagLast().sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 91 | { // reference | ||
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12 | std::vector<std::string> input = {"1337", "42", "64"}; |
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2 | std::vector<std::pair<std::string&, bool>> output = CXXIter::from(input) |
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2 | .flagLast() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output, ElementsAre(Pair("1337", false), Pair("42", false), Pair("64", true))); |
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2 | } |
| 99 | { //moved | ||
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12 | std::vector<std::string> input = {"1337", "42", "64"}; |
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2 | std::vector<std::pair<std::string, bool>> output = CXXIter::from(std::move(input)) |
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4 | .flagLast() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output, ElementsAre(Pair("1337", false), Pair("42", false), Pair("64", true))); |
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2 | } |
| 107 | { // filterLast | ||
| 108 |
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12 | std::vector<std::string> input = {"1337", "42", "64"}; |
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2 | std::vector<std::string> output = CXXIter::from(input) |
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2 | .flagLast() |
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5 | .filterMap([](const std::pair<std::string&, bool>& el) -> std::optional<std::string> { |
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3 | if(el.second) { return {}; } // remove last |
| 113 | 2 | return el.first; | |
| 114 | }) | ||
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2 | .collect<std::vector>(); |
| 116 |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output, ElementsAre("1337", "42")); |
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2 | } |
| 119 | { // flag after non-exact iterator | ||
| 120 |
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14 | std::vector<std::string> input = {"1337", "42", "420", "64"}; |
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2 | std::vector<std::pair<std::string&, bool>> output = CXXIter::from(input) |
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6 | .filter([](const std::string& el) { return el.size() >= 3; }) |
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2 | .flagLast() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output, ElementsAre(Pair("1337", false), Pair("420", true))); |
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2 | } |
| 128 | } | ||
| 129 | |||
| 130 | 8 | TEST(CXXIter, filter) { | |
| 131 | { // sizeHint | ||
| 132 |
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2 | std::vector<float> input = {1.35, 56.123}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .filter([](int item) { return (item % 2) == 0; }) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 139 | { | ||
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2 | std::vector<int> input = {1, 2, 3, 4, 5, 6, 7, 8}; |
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2 | std::vector<int> output = CXXIter::from(input) |
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10 | .filter([](int item) { return (item % 2) == 0; }) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(4, output.size()); |
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2 | ASSERT_THAT(output, ElementsAre(2, 4, 6, 8)); |
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2 | } |
| 147 | { | ||
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2 | std::vector<int> input = {1, 2, 3, 4, 5, 6, 7, 8}; |
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2 | std::vector<int> output = CXXIter::SrcMov(std::move(input)) |
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12 | .filter([](int item) { return (item % 2) == 0; }) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(4, output.size()); |
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2 | ASSERT_THAT(output, ElementsAre(2, 4, 6, 8)); |
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2 | } |
| 155 | } | ||
| 156 | |||
| 157 | 8 | TEST(CXXIter, unique) { | |
| 158 | { // sizeHint | ||
| 159 |
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2 | std::vector<size_t> input = {1, 1, 2, 3, 3, 4, 4, 5, 5, 5}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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4 | .unique() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 166 | { // basic data | ||
| 167 |
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2 | std::vector<size_t> input = {1, 1, 2, 3, 3, 4, 4, 5, 5, 5}; |
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2 | std::vector<size_t> output = CXXIter::from(input) |
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2 | .unique() |
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4 | .copied() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 5); |
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2 | ASSERT_THAT(output, ElementsAre(1, 2, 3, 4, 5)); |
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2 | } |
| 175 | { // basic data | ||
| 176 |
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2 | std::vector<double> input = {1.0, 1.5, 1.4, 2.0, 2.1, 2.99, 3.25, 4.5}; |
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2 | std::vector<double> output = CXXIter::from(input) |
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2 | .unique() |
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4 | .copied() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input.size()); |
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2 | ASSERT_THAT(output, ElementsAre(1.0, 1.5, 1.4, 2.0, 2.1, 2.99, 3.25, 4.5)); |
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2 | } |
| 184 | { // with mapFn | ||
| 185 |
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2 | std::vector<double> input = {1.0, 1.5, 1.4, 2.0, 2.1, 2.99, 3.25, 4.5}; |
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2 | std::vector<double> output = CXXIter::from(input) |
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10 | .unique([](double item) { return std::floor(item); }) |
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4 | .copied() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 4); |
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2 | ASSERT_THAT(output, ElementsAre(1.0, 2.0, 3.25, 4.5)); |
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2 | } |
| 193 | } | ||
| 194 | |||
| 195 | 8 | TEST(CXXIter, reverse) { | |
| 196 | { // sizeHint | ||
| 197 |
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2 | std::vector<size_t> input = {1, 42, 2, 1337, 3, 4, 69, 5, 6, 5}; |
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2 | SizeHint sizeHint = CXXIter::from(input).copied() |
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2 | .reverse() |
| 200 |
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2 | .sizeHint(); |
| 201 |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
| 203 |
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2 | } |
| 204 | { // Reverse using DoubleEndedIterator | ||
| 205 |
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2 | std::vector<size_t> input = {1, 42, 2, 1337, 3, 4, 69, 5, 6, 5}; |
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2 | std::vector<size_t> output = CXXIter::from(input).copied() |
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2 | .reverse() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(input.size(), output.size()); |
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2 | ASSERT_THAT(output, ElementsAre(5, 6, 5, 69, 4, 3, 1337, 2, 42, 1)); |
| 211 |
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2 | } |
| 212 | { // Reverse using internal Cache | ||
| 213 |
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2 | std::vector<size_t> input1 = {1, 2, 3, 4, 5}; |
| 214 |
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18 | std::vector<std::string> input2 = {"1", "2", "3", "4", "5", "6"}; |
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2 | std::vector<std::pair<size_t, std::string>> output = CXXIter::from(input1).copied() |
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2 | .zip(CXXIter::from(input2).copied()) |
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2 | .reverse() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size()); |
| 220 |
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2 | ASSERT_THAT(output, ElementsAre(Pair(5, "5"), Pair(4, "4"), Pair(3, "3"), Pair(2, "2"), Pair(1, "1"))); |
| 221 |
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2 | } |
| 222 | |||
| 223 | { // Double Reverse using DoubleEndedIterator | ||
| 224 |
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2 | std::vector<size_t> input = {1, 42, 2, 1337, 3, 4, 69, 5, 6, 5}; |
| 225 |
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2 | std::vector<size_t> output = CXXIter::from(input).copied() |
| 226 |
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2 | .reverse() |
| 227 |
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2 | .reverse() |
| 228 |
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2 | .collect<std::vector>(); |
| 229 |
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2 | ASSERT_EQ(input.size(), output.size()); |
| 230 |
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2 | ASSERT_THAT(output, ElementsAre(1, 42, 2, 1337, 3, 4, 69, 5, 6, 5)); |
| 231 |
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2 | } |
| 232 | { // Double Reverse using internal Cache | ||
| 233 |
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2 | std::vector<size_t> input1 = {1, 2, 3, 4, 5}; |
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18 | std::vector<std::string> input2 = {"1", "2", "3", "4", "5", "6"}; |
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2 | std::vector<std::pair<size_t, std::string>> output = CXXIter::from(input1).copied() |
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2 | .zip(CXXIter::from(input2).copied()) |
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2 | .reverse() |
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4 | .reverse() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size()); |
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2 | ASSERT_THAT(output, ElementsAre(Pair(1, "1"), Pair(2, "2"), Pair(3, "3"), Pair(4, "4"), Pair(5, "5"))); |
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2 | } |
| 243 | } | ||
| 244 | |||
| 245 | 8 | TEST(CXXIter, chunkedExact_buffered) { | |
| 246 | { // non-interleaved | ||
| 247 | { // sizeHint | ||
| 248 | { | ||
| 249 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunkedExact<3>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
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2 | } |
| 257 | { | ||
| 258 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunkedExact<3>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
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2 | } |
| 266 | { | ||
| 267 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunkedExact<3>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
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2 | } |
| 275 | { | ||
| 276 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .copied() |
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2 | .filter([](size_t) { return true; }) |
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2 | .chunkedExact<3>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
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2 | } |
| 285 | } | ||
| 286 | |||
| 287 | { | ||
| 288 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | auto output = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunkedExact<3>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
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2 | ASSERT_THAT(output[1], ElementsAre(31337, 69, 5)); |
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2 | ASSERT_THAT(output[2], ElementsAre(1, 2, 3)); |
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2 | } |
| 298 | { | ||
| 299 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 300 |
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2 | auto output = CXXIter::from(input) |
| 301 |
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2 | .copied() |
| 302 |
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2 | .chunkedExact<3>() |
| 303 |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
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2 | ASSERT_THAT(output[1], ElementsAre(31337, 69, 5)); |
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2 | } |
| 308 | { | ||
| 309 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | auto output = CXXIter::from(input) |
| 311 |
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2 | .copied() |
| 312 |
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2 | .chunkedExact<5>() |
| 313 |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 1); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512, 31337, 69)); |
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2 | } |
| 317 | } | ||
| 318 | |||
| 319 | { // overlapping, step width 2 | ||
| 320 | { // sizeHint | ||
| 321 | { | ||
| 322 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .copied() |
| 325 |
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2 | .chunkedExact<3, 2>() |
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2 | .sizeHint(); |
| 327 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 4); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 4); |
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2 | } |
| 330 | { | ||
| 331 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 332 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 333 |
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2 | .copied() |
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2 | .chunkedExact<3, 2>() |
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2 | .sizeHint(); |
| 336 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
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2 | } |
| 339 | { | ||
| 340 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 342 |
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2 | .copied() |
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2 | .chunkedExact<3, 2>() |
| 344 |
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2 | .sizeHint(); |
| 345 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
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2 | } |
| 348 | { | ||
| 349 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 350 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 351 |
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2 | .copied() |
| 352 |
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2 | .filter([](size_t) { return true; }) |
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2 | .chunkedExact<3, 2>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
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2 | } |
| 358 | } | ||
| 359 | |||
| 360 | { | ||
| 361 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | auto output = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunkedExact<3, 2>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 4); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
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2 | ASSERT_THAT(output[1], ElementsAre(512, 31337, 69)); |
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2 | ASSERT_THAT(output[2], ElementsAre(69, 5, 1)); |
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2 | ASSERT_THAT(output[3], ElementsAre(1, 2, 3)); |
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2 | } |
| 372 | { | ||
| 373 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
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2 | auto output = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunkedExact<3, 2>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
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2 | ASSERT_THAT(output[1], ElementsAre(512, 31337, 69)); |
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2 | ASSERT_THAT(output[2], ElementsAre(69, 5, 1)); |
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2 | } |
| 383 | { | ||
| 384 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | auto output = CXXIter::from(input) |
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2 | .copied() |
| 387 |
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2 | .chunkedExact<5, 3>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512, 31337, 69)); |
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2 | ASSERT_THAT(output[1], ElementsAre(31337, 69, 5, 1, 2)); |
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2 | } |
| 393 | } | ||
| 394 | |||
| 395 | |||
| 396 | { // step width > context-size | ||
| 397 | { //sizeHint | ||
| 398 | { | ||
| 399 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunkedExact<3, 4>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 406 |
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2 | } |
| 407 | { | ||
| 408 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 409 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 410 |
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2 | .copied() |
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2 | .chunkedExact<3, 4>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 415 |
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2 | } |
| 416 | { | ||
| 417 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 418 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 419 |
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2 | .copied() |
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2 | .chunkedExact<3, 4>() |
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2 | .sizeHint(); |
| 422 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 424 |
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2 | } |
| 425 | { | ||
| 426 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 427 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 428 |
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2 | .copied() |
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2 | .filter([](size_t) { return true; }) |
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2 | .chunkedExact<3, 4>() |
| 431 |
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2 | .sizeHint(); |
| 432 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 434 |
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2 | } |
| 435 | } | ||
| 436 | |||
| 437 | { | ||
| 438 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 439 |
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2 | auto output = CXXIter::from(input) |
| 440 |
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2 | .copied() |
| 441 |
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2 | .chunkedExact<3, 4>() |
| 442 |
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2 | .collect<std::vector>(); |
| 443 |
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2 | ASSERT_EQ(output.size(), 2); |
| 444 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
| 445 |
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2 | ASSERT_THAT(output[1], ElementsAre(69, 5, 1)); |
| 446 |
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2 | } |
| 447 | { | ||
| 448 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 449 |
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2 | auto output = CXXIter::from(input) |
| 450 |
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2 | .copied() |
| 451 |
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2 | .chunkedExact<3, 4>() |
| 452 |
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2 | .collect<std::vector>(); |
| 453 |
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2 | ASSERT_EQ(output.size(), 2); |
| 454 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
| 455 |
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2 | ASSERT_THAT(output[1], ElementsAre(69, 5, 1)); |
| 456 |
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2 | } |
| 457 | { | ||
| 458 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 459 |
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2 | auto output = CXXIter::from(input) |
| 460 |
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2 | .copied() |
| 461 |
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2 | .chunkedExact<5, 6>() |
| 462 |
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2 | .collect<std::vector>(); |
| 463 |
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2 | ASSERT_EQ(output.size(), 1); |
| 464 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512, 31337, 69)); |
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2 | } |
| 466 | } | ||
| 467 | } | ||
| 468 | |||
| 469 | 8 | TEST(CXXIter, chunkedExact_directAccess) { | |
| 470 | { // non-interleaved | ||
| 471 | { // sizeHint | ||
| 472 | { | ||
| 473 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 474 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 475 |
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2 | .chunkedExact<3>() |
| 476 |
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2 | .sizeHint(); |
| 477 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
| 479 |
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2 | } |
| 480 | { | ||
| 481 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 482 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 483 |
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2 | .chunkedExact<3>() |
| 484 |
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2 | .sizeHint(); |
| 485 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 487 |
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2 | } |
| 488 | { | ||
| 489 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 490 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 491 |
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2 | .chunkedExact<3>() |
| 492 |
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2 | .sizeHint(); |
| 493 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 495 |
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2 | } |
| 496 | { | ||
| 497 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 498 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 499 |
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2 | .filter([](size_t) { return true; }) |
| 500 |
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2 | .chunkedExact<3>() |
| 501 |
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2 | .sizeHint(); |
| 502 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
| 503 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 504 |
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2 | } |
| 505 | } | ||
| 506 | |||
| 507 | { | ||
| 508 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 509 |
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2 | auto output = CXXIter::from(input) |
| 510 |
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2 | .chunkedExact<3>() |
| 511 |
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2 | .collect<std::vector>(); |
| 512 |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
| 514 |
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2 | ASSERT_THAT(output[1], ElementsAre(31337, 69, 5)); |
| 515 |
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2 | ASSERT_THAT(output[2], ElementsAre(1, 2, 3)); |
| 516 |
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2 | } |
| 517 | { | ||
| 518 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 519 |
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2 | auto output = CXXIter::from(input) |
| 520 |
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2 | .chunkedExact<3>() |
| 521 |
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2 | .collect<std::vector>(); |
| 522 |
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2 | ASSERT_EQ(output.size(), 2); |
| 523 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
| 524 |
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2 | ASSERT_THAT(output[1], ElementsAre(31337, 69, 5)); |
| 525 |
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2 | } |
| 526 | { | ||
| 527 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 528 |
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2 | auto output = CXXIter::from(input) |
| 529 |
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2 | .chunkedExact<5>() |
| 530 |
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2 | .collect<std::vector>(); |
| 531 |
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2 | ASSERT_EQ(output.size(), 1); |
| 532 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512, 31337, 69)); |
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2 | } |
| 534 | } | ||
| 535 | |||
| 536 | { // overlapping, step width 2 | ||
| 537 | { // sizeHint | ||
| 538 | { | ||
| 539 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 540 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 541 |
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2 | .chunkedExact<3, 2>() |
| 542 |
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2 | .sizeHint(); |
| 543 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 4); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 4); |
| 545 |
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2 | } |
| 546 | { | ||
| 547 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 548 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 549 |
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2 | .chunkedExact<3, 2>() |
| 550 |
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2 | .sizeHint(); |
| 551 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
| 552 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
| 553 |
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2 | } |
| 554 | { | ||
| 555 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 556 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 557 |
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2 | .chunkedExact<3, 2>() |
| 558 |
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2 | .sizeHint(); |
| 559 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
| 560 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
| 561 |
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2 | } |
| 562 | { | ||
| 563 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 564 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 565 |
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2 | .filter([](size_t) { return true; }) |
| 566 |
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2 | .chunkedExact<3, 2>() |
| 567 |
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2 | .sizeHint(); |
| 568 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
| 569 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
| 570 |
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2 | } |
| 571 | } | ||
| 572 | |||
| 573 | { | ||
| 574 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 575 |
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2 | auto output = CXXIter::from(input) |
| 576 |
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2 | .chunkedExact<3, 2>() |
| 577 |
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2 | .collect<std::vector>(); |
| 578 |
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2 | ASSERT_EQ(output.size(), 4); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
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2 | ASSERT_THAT(output[1], ElementsAre(512, 31337, 69)); |
| 581 |
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2 | ASSERT_THAT(output[2], ElementsAre(69, 5, 1)); |
| 582 |
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2 | ASSERT_THAT(output[3], ElementsAre(1, 2, 3)); |
| 583 |
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2 | } |
| 584 | { | ||
| 585 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 586 |
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2 | auto output = CXXIter::from(input) |
| 587 |
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2 | .chunkedExact<3, 2>() |
| 588 |
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2 | .collect<std::vector>(); |
| 589 |
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2 | ASSERT_EQ(output.size(), 3); |
| 590 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
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2 | ASSERT_THAT(output[1], ElementsAre(512, 31337, 69)); |
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2 | ASSERT_THAT(output[2], ElementsAre(69, 5, 1)); |
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2 | } |
| 594 | { | ||
| 595 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 596 |
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2 | auto output = CXXIter::from(input) |
| 597 |
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2 | .chunkedExact<5, 3>() |
| 598 |
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2 | .collect<std::vector>(); |
| 599 |
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2 | ASSERT_EQ(output.size(), 2); |
| 600 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512, 31337, 69)); |
| 601 |
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2 | ASSERT_THAT(output[1], ElementsAre(31337, 69, 5, 1, 2)); |
| 602 |
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2 | } |
| 603 | } | ||
| 604 | |||
| 605 | |||
| 606 | { // step width > context-size | ||
| 607 | { //sizeHint | ||
| 608 | { | ||
| 609 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 610 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 611 |
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2 | .chunkedExact<3, 4>() |
| 612 |
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2 | .sizeHint(); |
| 613 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
| 614 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 615 |
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2 | } |
| 616 | { | ||
| 617 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 618 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 619 |
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2 | .chunkedExact<3, 4>() |
| 620 |
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2 | .sizeHint(); |
| 621 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
| 622 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 623 |
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2 | } |
| 624 | { | ||
| 625 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 626 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 627 |
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2 | .chunkedExact<3, 4>() |
| 628 |
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2 | .sizeHint(); |
| 629 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
| 630 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 631 |
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2 | } |
| 632 | { | ||
| 633 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 634 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 635 |
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2 | .filter([](size_t) { return true; }) |
| 636 |
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2 | .chunkedExact<3, 4>() |
| 637 |
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2 | .sizeHint(); |
| 638 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
| 639 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 2); |
| 640 |
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2 | } |
| 641 | } | ||
| 642 | |||
| 643 | { | ||
| 644 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 645 |
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2 | auto output = CXXIter::from(input) |
| 646 |
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2 | .chunkedExact<3, 4>() |
| 647 |
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2 | .collect<std::vector>(); |
| 648 |
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2 | ASSERT_EQ(output.size(), 2); |
| 649 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
| 650 |
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2 | ASSERT_THAT(output[1], ElementsAre(69, 5, 1)); |
| 651 |
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2 | } |
| 652 | { | ||
| 653 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 654 |
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2 | auto output = CXXIter::from(input) |
| 655 |
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2 | .chunkedExact<3, 4>() |
| 656 |
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2 | .collect<std::vector>(); |
| 657 |
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2 | ASSERT_EQ(output.size(), 2); |
| 658 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
| 659 |
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2 | ASSERT_THAT(output[1], ElementsAre(69, 5, 1)); |
| 660 |
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2 | } |
| 661 | { | ||
| 662 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 663 |
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2 | auto output = CXXIter::from(input) |
| 664 |
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2 | .chunkedExact<5, 6>() |
| 665 |
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2 | .collect<std::vector>(); |
| 666 |
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2 | ASSERT_EQ(output.size(), 1); |
| 667 |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512, 31337, 69)); |
| 668 |
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2 | } |
| 669 | } | ||
| 670 | } | ||
| 671 | |||
| 672 | 8 | TEST(CXXIter, chunkedExact_elementTypeSelection) { | |
| 673 | { // contiguous | ||
| 674 | { // references | ||
| 675 | { // mutable | ||
| 676 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 677 |
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2 | auto iter = CXXIter::from(input).chunkedExact<3, 2>(); |
| 678 |
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2 | CXXIter::ExactChunk<size_t, 3>& output0 = iter.next().value(); |
| 679 |
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2 | CXXIter::ExactChunk<size_t, 3>& output1 = iter.next().value(); |
| 680 |
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2 | ASSERT_EQ(output0.data(), &input[0]); |
| 681 |
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2 | ASSERT_EQ(output1.data(), &input[2]); |
| 682 | 2 | output1[1] = 9999; | |
| 683 |
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2 | ASSERT_EQ(input[3], 9999); |
| 684 |
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2 | } |
| 685 | { // const | ||
| 686 |
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2 | const std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 687 |
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2 | auto iter = CXXIter::from(input).chunkedExact<3, 2>(); |
| 688 |
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2 | const CXXIter::ExactChunk<size_t, 3>& output0 = iter.next().value(); |
| 689 |
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2 | const CXXIter::ExactChunk<size_t, 3>& output1 = iter.next().value(); |
| 690 |
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2 | ASSERT_EQ(output0.data(), &input[0]); |
| 691 |
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2 | ASSERT_EQ(output1.data(), &input[2]); |
| 692 |
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2 | } |
| 693 | } | ||
| 694 | { // owned | ||
| 695 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 696 |
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2 | auto iter = CXXIter::from(input).copied().chunkedExact<3, 2>(); |
| 697 |
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2 | const CXXIter::ExactChunk<size_t, 3>& output0 = iter.next().value(); |
| 698 |
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2 | const CXXIter::ExactChunk<size_t, 3>& output1 = iter.next().value(); |
| 699 |
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2 | ASSERT_NE(output0.data(), &input[0]); |
| 700 |
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2 | ASSERT_NE(output1.data(), &input[2]); |
| 701 |
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2 | } |
| 702 | } | ||
| 703 | { // non-contiguous | ||
| 704 | { // references | ||
| 705 | { // mutable | ||
| 706 |
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2 | std::deque<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 707 |
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2 | auto iter = CXXIter::from(input).chunkedExact<3, 2>(); |
| 708 |
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2 | const CXXIter::ExactChunk<size_t&, 3>& output0 = iter.next().value(); |
| 709 |
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2 | ASSERT_EQ(&output0[0].get(), &input[0]); |
| 710 |
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2 | const CXXIter::ExactChunk<size_t&, 3>& output1 = iter.next().value(); |
| 711 |
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2 | ASSERT_EQ(&output1[0].get(), &input[2]); |
| 712 | 2 | output1[1].get() = 9999; | |
| 713 |
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2 | ASSERT_EQ(input[3], 9999); |
| 714 |
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2 | } |
| 715 | { // const | ||
| 716 |
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2 | const std::deque<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 717 |
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2 | auto iter = CXXIter::from(input).chunkedExact<3, 2>(); |
| 718 |
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2 | const CXXIter::ExactChunk<const size_t&, 3>& output0 = iter.next().value(); |
| 719 |
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2 | ASSERT_EQ(&output0[0].get(), &input[0]); |
| 720 |
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2 | const CXXIter::ExactChunk<const size_t&, 3>& output1 = iter.next().value(); |
| 721 |
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2 | ASSERT_EQ(&output1[0].get(), &input[2]); |
| 722 |
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2 | } |
| 723 | } | ||
| 724 | { // owned | ||
| 725 |
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2 | std::deque<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 726 |
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2 | auto iter = CXXIter::from(input).copied().chunkedExact<3, 2>(); |
| 727 |
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2 | const CXXIter::ExactChunk<size_t, 3>& output0 = iter.next().value(); |
| 728 |
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2 | const CXXIter::ExactChunk<size_t, 3>& output1 = iter.next().value(); |
| 729 |
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2 | ASSERT_NE(output0.data(), &input[0]); |
| 730 |
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2 | ASSERT_NE(output1.data(), &input[2]); |
| 731 |
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2 | } |
| 732 | } | ||
| 733 | } | ||
| 734 | |||
| 735 | 8 | TEST(CXXIter, chunkedExact_usage) { | |
| 736 | { | ||
| 737 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 738 |
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2 | std::vector<CXXIter::ExactChunk<size_t, 3>> output = CXXIter::from(input) |
| 739 |
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2 | .chunkedExact<3>() |
| 740 |
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2 | .collect<std::vector>(); |
| 741 |
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2 | ASSERT_THAT(output, ElementsAre(ElementsAre(1337, 42, 512), ElementsAre(31337, 69, 5), ElementsAre(1, 2, 3))); |
| 742 |
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2 | } |
| 743 | { | ||
| 744 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
| 745 |
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2 | std::vector<CXXIter::ExactChunk<size_t, 3>> output = CXXIter::from(input) |
| 746 |
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2 | .chunkedExact<3>() |
| 747 |
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2 | .collect<std::vector>(); |
| 748 |
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2 | ASSERT_THAT(output, ElementsAre(ElementsAre(1337, 42, 512), ElementsAre(31337, 69, 5))); |
| 749 |
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2 | } |
| 750 | { | ||
| 751 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5}; |
| 752 |
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2 | std::vector<CXXIter::ExactChunk<size_t, 3>> output = CXXIter::from(input) |
| 753 |
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2 | .chunkedExact<3, 1>() |
| 754 |
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2 | .collect<std::vector>(); |
| 755 |
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2 | ASSERT_THAT(output, ElementsAre(ElementsAre(1337, 42, 512), ElementsAre(42, 512, 31337), ElementsAre(512, 31337, 69), ElementsAre(31337, 69, 5))); |
| 756 |
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2 | } |
| 757 | { | ||
| 758 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 759 |
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2 | std::vector<CXXIter::ExactChunk<size_t, 3>> output = CXXIter::from(input) |
| 760 |
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2 | .chunkedExact<3, 4>() |
| 761 |
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2 | .collect<std::vector>(); |
| 762 |
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2 | ASSERT_THAT(output, ElementsAre(ElementsAre(1337, 42, 512), ElementsAre(69, 5, 1))); |
| 763 |
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2 | } |
| 764 | { | ||
| 765 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 766 |
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2 | CXXIter::from(input) |
| 767 |
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2 | .chunkedExact<3, 4>() |
| 768 |
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4 | .forEach([](std::array<size_t, 3>& chunkRef) { |
| 769 | 2 | chunkRef[0] += 1; chunkRef[1] += 2; chunkRef[2] += 3; | |
| 770 | 2 | }); | |
| 771 |
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2 | ASSERT_THAT(input, ElementsAre(1337+1, 42+2, 512+3, 31337, 69+1, 5+2, 1+3)); |
| 772 |
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2 | } |
| 773 | { | ||
| 774 |
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2 | std::deque<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 775 |
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2 | std::vector<CXXIter::ExactChunk<size_t, 3>> output = CXXIter::from(input) |
| 776 |
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2 | .copied() // required to avoid std::reference_wrapper<...> in elements produced by chunkedExact() |
| 777 |
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2 | .chunkedExact<3, 4>() |
| 778 |
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2 | .collect<std::vector>(); |
| 779 |
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2 | ASSERT_THAT(output, ElementsAre(ElementsAre(1337, 42, 512), ElementsAre(69, 5, 1))); |
| 780 |
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2 | } |
| 781 | { | ||
| 782 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 783 | // CXXIter::ExactChunk<size_t&, 3> resolves to std::array<std::reference_wrapper<size_t>, 3> | ||
| 784 |
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2 | std::vector<CXXIter::ExactChunk<size_t&, 3>> output = CXXIter::from(input) |
| 785 |
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9 | .filter([](const auto&) { return true; }) |
| 786 |
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2 | .chunkedExact<3, 4>() |
| 787 |
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2 | .collect<std::vector>(); |
| 788 | // output == { {1337, 42, 512}, {69, 5, 1} } | ||
| 789 | 2 | } | |
| 790 | } | ||
| 791 | |||
| 792 | 8 | TEST(CXXIter, chunked) { | |
| 793 | { // sizeHint | ||
| 794 | { | ||
| 795 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
| 796 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 797 |
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2 | .copied() |
| 798 |
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2 | .chunked<3>() |
| 799 |
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2 | .sizeHint(); |
| 800 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
| 801 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
| 802 |
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2 | } |
| 803 | { | ||
| 804 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
| 805 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 806 |
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2 | .copied() |
| 807 |
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2 | .chunked<3>() |
| 808 |
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2 | .sizeHint(); |
| 809 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
| 810 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
| 811 |
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2 | } |
| 812 | { | ||
| 813 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunked<3>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
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2 | } |
| 821 | { | ||
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .copied() |
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2 | .filter([](size_t) { return true; }) |
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2 | .chunked<3>() |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
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2 | } |
| 831 | } | ||
| 832 | { | ||
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | auto output = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunked<3>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
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2 | ASSERT_THAT(output[1], ElementsAre(31337, 69, 5)); |
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2 | ASSERT_THAT(output[2], ElementsAre(1, 2, 3)); |
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2 | } |
| 843 | { | ||
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1}; |
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2 | auto output = CXXIter::from(input) |
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2 | .copied() |
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2 | .chunked<3>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512)); |
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2 | ASSERT_THAT(output[1], ElementsAre(31337, 69, 5)); |
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2 | ASSERT_THAT(output[2], ElementsAre(1)); |
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2 | } |
| 854 | { | ||
| 855 |
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2 | std::vector<size_t> input = {1337, 42, 512, 31337, 69, 5, 1, 2, 3}; |
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2 | auto output = CXXIter::from(input) |
| 857 |
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2 | .copied() |
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2 | .chunked<5>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output[0], ElementsAre(1337, 42, 512, 31337, 69)); |
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2 | ASSERT_THAT(output[1], ElementsAre(5, 1, 2, 3)); |
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2 | } |
| 864 | } | ||
| 865 | |||
| 866 | 8 | TEST(CXXIter, filterMap) { | |
| 867 | { // sizeHint | ||
| 868 |
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2 | std::vector<int> input = {1, 2, 3, 4, 5, 6, 7, 8}; |
| 869 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 870 |
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2 | .filterMap([](int item) -> std::optional<int> { |
| 871 | if(item % 2 == 0) { return (item + 3); } | ||
| 872 | return {}; | ||
| 873 | }) | ||
| 874 |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 878 | { | ||
| 879 |
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2 | std::vector<int> input = {1, 2, 3, 4, 5, 6, 7, 8}; |
| 880 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 881 |
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10 | .filterMap([](int item) -> std::optional<int> { |
| 882 |
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8 | if(item % 2 == 0) { return (item + 3); } |
| 883 | 4 | return {}; | |
| 884 | }) | ||
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2 | .collect<std::vector>(); |
| 886 |
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2 | ASSERT_EQ(4, output.size()); |
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2 | ASSERT_THAT(output, ElementsAre(2+3, 4+3, 6+3, 8+3)); |
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2 | } |
| 889 | } | ||
| 890 | |||
| 891 | 8 | TEST(CXXIter, map) { | |
| 892 | struct SimpleState { | ||
| 893 | size_t state = 0; | ||
| 894 | 8 | SimpleState(size_t state) : state(state) {} | |
| 895 | 12 | size_t getAddState() { | |
| 896 | 12 | state += 1; | |
| 897 | 12 | return state; | |
| 898 | } | ||
| 899 | }; | ||
| 900 | |||
| 901 | { // sizeHint | ||
| 902 |
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2 | std::vector<int> input = {1337, 42}; |
| 903 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 904 |
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2 | .map([](int i) { return std::make_pair(i, std::to_string(i)); }) |
| 905 |
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2 | .sizeHint(); |
| 906 |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
| 907 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
| 908 |
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2 | } |
| 909 | { | ||
| 910 |
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8 | std::unordered_map<int, std::string> input = { {1337, "1337"}, {42, "42"} }; |
| 911 |
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2 | std::unordered_set<int> output = CXXIter::from(input) |
| 912 |
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4 | .map([](const auto& pair) { return pair.first; }) |
| 913 |
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2 | .collect<std::unordered_set>(); |
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6 | for(const int& item : output) { ASSERT_TRUE(input.contains(item)); } |
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2 | } |
| 916 | { | ||
| 917 |
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2 | std::vector<int> input = {1337, 42}; |
| 918 |
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2 | std::unordered_map<int, std::string> output = CXXIter::from(input) |
| 919 |
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6 | .map([](int i) { return std::make_pair(i, std::to_string(i)); }) // construct pair |
| 920 |
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2 | .collect<std::unordered_map>(); // collect into map |
| 921 |
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6 | for(const int& item : input) { |
| 922 |
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4 | ASSERT_TRUE(output.contains(item)); |
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8 | ASSERT_EQ(output[item], std::to_string(item)); |
| 924 | } | ||
| 925 |
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2 | } |
| 926 | { // move source | ||
| 927 |
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2 | std::vector<SimpleState> input = { 0, 1336, 41, 68 }; |
| 928 |
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2 | size_t output = CXXIter::from(std::move(input)) |
| 929 |
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8 | .map([](SimpleState&& state) { return state.getAddState(); }) |
| 930 |
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2 | .sum(); |
| 931 |
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2 | ASSERT_EQ(output, 1 + 1337 + 42 + 69); |
| 932 |
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2 | ASSERT_EQ(input.size(), 0); |
| 933 |
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2 | } |
| 934 | { // ref source | ||
| 935 |
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2 | std::vector<SimpleState> input = { 1, 1337, 42, 69 }; |
| 936 |
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2 | size_t output = CXXIter::from(input) |
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6 | .map([](SimpleState& state) { return state.getAddState(); }) |
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2 | .sum(); |
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2 | ASSERT_EQ(output, 2 + 1338 + 43 + 70); |
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2 | ASSERT_EQ(input[0].getAddState(), 3); |
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2 | ASSERT_EQ(input[1].getAddState(), 1339); |
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2 | ASSERT_EQ(input[2].getAddState(), 44); |
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2 | ASSERT_EQ(input[3].getAddState(), 71); |
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2 | } |
| 945 | } | ||
| 946 | |||
| 947 | 8 | TEST(CXXIter, modify) { | |
| 948 | { // sizeHint | ||
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8 | std::unordered_map<int, std::string> input = { {1337, "1337"}, {42, "42"} }; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .modify([](auto& keyValue) { keyValue.second = "-" + keyValue.second; }) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 956 | { | ||
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8 | std::unordered_map<int, std::string> input = { {1337, "1337"}, {42, "42"} }; |
| 958 |
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2 | std::unordered_map<int, std::string> output = CXXIter::from(input) |
| 959 |
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4 | .modify([](auto& keyValue) { keyValue.second = "-" + keyValue.second; }) // modify input |
| 960 |
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2 | .collect<std::unordered_map>(); // copy to output |
| 961 |
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6 | for(const auto& item : input) { |
| 962 |
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4 | ASSERT_TRUE(output.contains(item.first)); |
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4 | ASSERT_EQ(item.second, input[item.first]); |
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4 | ASSERT_TRUE(item.second.starts_with("-")); |
| 965 | } | ||
| 966 |
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2 | } |
| 967 | } | ||
| 968 | |||
| 969 | 8 | TEST(CXXIter, skip) { | |
| 970 | { // sizeHint | ||
| 971 | { | ||
| 972 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 42}; |
| 973 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 974 |
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2 | .skip(3) |
| 975 |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
| 978 |
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2 | } |
| 979 | { | ||
| 980 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 42}; |
| 981 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 982 |
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2 | .skip(10) |
| 983 |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 0); |
| 986 |
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2 | } |
| 987 | { | ||
| 988 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 42}; |
| 989 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 990 |
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2 | .skip(0) |
| 991 |
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2 | .sizeHint(); |
| 992 |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 995 | } | ||
| 996 | { | ||
| 997 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337}; |
| 998 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 999 |
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2 | .skip(3) // skip first 3 values |
| 1000 |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output, ElementsAre(42, 1337)); |
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2 | } |
| 1004 | { | ||
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2 | std::vector<int> input = {42, 42, 42, 42, 1337}; |
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2 | std::vector<int> output = CXXIter::from(input) |
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2 | .skip(0) |
| 1008 |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input.size()); |
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2 | ASSERT_THAT(output, ElementsAre(42, 42, 42, 42, 1337)); |
| 1011 |
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2 | } |
| 1012 | { | ||
| 1013 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 69, 69, 31337}; |
| 1014 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1015 |
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2 | .skip(3) |
| 1016 |
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2 | .skip(1) |
| 1017 |
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2 | .collect<std::vector>(); |
| 1018 |
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2 | ASSERT_EQ(output.size(), 4); |
| 1019 |
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2 | ASSERT_THAT(output, ElementsAre(1337, 69, 69, 31337)); |
| 1020 |
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2 | } |
| 1021 | { | ||
| 1022 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 69, 69, 31337}; |
| 1023 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1024 |
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2 | .skip(99) |
| 1025 |
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2 | .skip(1) |
| 1026 |
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2 | .collect<std::vector>(); |
| 1027 |
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2 | ASSERT_EQ(output.size(), 0); |
| 1028 |
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2 | } |
| 1029 | { | ||
| 1030 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 69, 69, 31337}; |
| 1031 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1032 |
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2 | .skip(1) |
| 1033 |
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2 | .skip(99) |
| 1034 |
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2 | .collect<std::vector>(); |
| 1035 |
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2 | ASSERT_EQ(output.size(), 0); |
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2 | } |
| 1037 | { | ||
| 1038 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 69, 69, 31337}; |
| 1039 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1040 |
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2 | .skip(8) |
| 1041 |
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2 | .collect<std::vector>(); |
| 1042 |
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2 | ASSERT_EQ(output.size(), 0); |
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2 | } |
| 1044 | } | ||
| 1045 | |||
| 1046 | 8 | TEST(CXXIter, skipWhile) { | |
| 1047 | { // sizeHint | ||
| 1048 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 42}; |
| 1049 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 1050 |
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2 | .skipWhile([](const int value) { return (value == 42); }) |
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2 | .sizeHint(); |
| 1052 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 1055 | { | ||
| 1056 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 42}; |
| 1057 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1058 |
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7 | .skipWhile([](const int value) { return (value == 42); }) // skip leading 42s |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output, ElementsAre(1337, 42)); |
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2 | ASSERT_THAT(output, ElementsAre(1337, 42)); |
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2 | } |
| 1064 | } | ||
| 1065 | |||
| 1066 | 8 | TEST(CXXIter, take) { | |
| 1067 | { // sizeHint | ||
| 1068 | { | ||
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2 | std::vector<int> input = {42, 57, 64, 128, 1337, 10}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .take(3) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 3); |
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2 | } |
| 1076 | { | ||
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2 | std::vector<int> input = {42, 57, 64, 128, 1337, 10}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .take(32) |
| 1080 |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 1084 | { | ||
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2 | std::vector<int> input = {42, 57, 64, 128, 1337, 10}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .take(0) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 0); |
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2 | } |
| 1092 | } | ||
| 1093 | { | ||
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2 | std::vector<int> input = {42, 57, 64, 128, 1337, 10}; |
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2 | std::vector<int> output = CXXIter::from(input) |
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2 | .take(3) // take first 3 values |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_THAT(output, ElementsAre(42, 57, 64)); |
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2 | } |
| 1101 | { | ||
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2 | std::string input = "test"; |
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2 | std::string output = CXXIter::from(input) |
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2 | .take(3) |
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2 | .collect<std::basic_string>(); |
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2 | ASSERT_EQ(output.size(), 3); |
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2 | ASSERT_EQ(output, "tes"); |
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2 | } |
| 1109 | { | ||
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2 | std::string input = "test"; |
| 1111 |
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2 | std::string output = CXXIter::from(input) |
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2 | .take(0) |
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2 | .collect<std::basic_string>(); |
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2 | ASSERT_EQ(output.size(), 0); |
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2 | } |
| 1116 | } | ||
| 1117 | |||
| 1118 | 8 | TEST(CXXIter, takeWhile) { | |
| 1119 | { // sizeHint | ||
| 1120 |
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2 | std::vector<int> input = {42, 42, 42, 42, 1337, 42}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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2 | .takeWhile([](const int value) { return (value < 1000); }) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 1127 | { | ||
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2 | std::vector<int> input = {42, 57, 64, 128, 1337, 10}; |
| 1129 |
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2 | std::vector<int> output = CXXIter::from(input) |
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7 | .takeWhile([](const int value) { return (value < 1000); }) // take until first item > 1000 |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 4); |
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2 | ASSERT_THAT(output, ElementsAre(42, 57, 64, 128)); |
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2 | } |
| 1135 | } | ||
| 1136 | |||
| 1137 | 8 | TEST(CXXIter, flatMap) { | |
| 1138 | { // sizeHint | ||
| 1139 |
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10 | std::vector<std::pair<std::string, std::vector<int>>> input = {{"first pair", {1337, 42}}, {"second pair", {6, 123, 7888}}}; |
| 1140 |
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2 | SizeHint sizeHint = CXXIter::from(std::move(input)) |
| 1141 |
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4 | .flatMap([](auto&& item) { return std::get<1>(item); }) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_FALSE(sizeHint.upperBound.has_value()); |
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2 | } |
| 1146 | { | ||
| 1147 |
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10 | std::vector<std::pair<std::string, std::vector<int>>> input = {{"first pair", {1337, 42}}, {"second pair", {6, 123, 7888}}}; |
| 1148 |
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2 | std::vector<int> output = CXXIter::from(std::move(input)) |
| 1149 |
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6 | .flatMap([](auto&& item) { return std::get<1>(item); }) // flatten the std::vector<int> from the pair |
| 1150 |
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2 | .collect<std::vector>(); // collect into vector containing {1337, 42, 6, 123, 7888} |
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2 | ASSERT_EQ(output.size(), 5); |
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2 | ASSERT_THAT(output, ElementsAre(1337, 42, 6, 123, 7888)); |
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2 | } |
| 1154 | { | ||
| 1155 |
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10 | std::vector<std::vector<int>> input = {{1337, 42}, {6, 123, 7888}}; |
| 1156 |
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2 | std::vector<int> output = CXXIter::from(std::move(input)) |
| 1157 |
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4 | .flatMap() |
| 1158 |
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2 | .collect<std::vector>(); // collect into vector containing {1337, 42, 6, 123, 7888} |
| 1159 |
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2 | ASSERT_EQ(output.size(), 5); |
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2 | ASSERT_THAT(output, ElementsAre(1337, 42, 6, 123, 7888)); |
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2 | } |
| 1162 | } | ||
| 1163 | |||
| 1164 | #ifdef CXXITER_HAS_COROUTINE | ||
| 1165 | 8 | TEST(CXXIter, generateFrom) { | |
| 1166 | { | ||
| 1167 |
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2 | std::vector<int> input = {1337, 42}; |
| 1168 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1169 |
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4 | .generateFrom([](const int& item) -> CXXIter::Generator<int> { |
| 1170 | for(int i = -2; i <= 2; ++i) { | ||
| 1171 | co_yield (item + i); | ||
| 1172 | } | ||
| 1173 |
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4 | }) |
| 1174 |
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2 | .collect<std::vector>(); |
| 1175 |
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2 | ASSERT_THAT(output, ElementsAre(1335, 1336, 1337, 1338, 1339, 40, 41, 42, 43, 44)); |
| 1176 |
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2 | } |
| 1177 | { // cloning item reference - pass on as copied reference | ||
| 1178 |
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10 | std::vector<std::string> input = {"1337", "42"}; |
| 1179 |
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2 | std::vector<std::string> output = CXXIter::from(input) |
| 1180 |
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4 | .generateFrom([](const std::string& item) -> CXXIter::Generator<const std::string&> { |
| 1181 | for(size_t i = 0; i < item.size(); ++i) { | ||
| 1182 | co_yield item; | ||
| 1183 | } | ||
| 1184 |
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4 | }) |
| 1185 |
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2 | .collect<std::vector>(); |
| 1186 |
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|
2 | ASSERT_THAT(output, ElementsAre("1337", "1337", "1337", "1337", "42", "42")); |
| 1187 |
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2 | } |
| 1188 | { // cloning item - pass on as owned copy | ||
| 1189 |
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10 | std::vector<std::string> input = {"1337", "42"}; |
| 1190 |
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2 | std::vector<std::string> output = CXXIter::from(input) |
| 1191 |
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4 | .generateFrom([](const std::string& item) -> CXXIter::Generator<std::string> { |
| 1192 | for(size_t i = 0; i < item.size(); ++i) { | ||
| 1193 | co_yield item; | ||
| 1194 | } | ||
| 1195 |
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4 | }) |
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2 | .collect<std::vector>(); |
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|
2 | ASSERT_THAT(output, ElementsAre("1337", "1337", "1337", "1337", "42", "42")); |
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2 | } |
| 1199 | { | ||
| 1200 |
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10 | std::vector<std::string> input = {"1337", "42"}; |
| 1201 |
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2 | std::vector<std::string> output = CXXIter::from(std::move(input)) |
| 1202 |
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6 | .generateFrom([](std::string item) -> CXXIter::Generator<std::string> { |
| 1203 | for(size_t i = 0; i < item.size(); ++i) { | ||
| 1204 | co_yield item; | ||
| 1205 | } | ||
| 1206 |
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4 | }) |
| 1207 |
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2 | .collect<std::vector>(); |
| 1208 |
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2 | ASSERT_THAT(output, ElementsAre("1337", "1337", "1337", "1337", "42", "42")); |
| 1209 |
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2 | } |
| 1210 | { // generate different item type than input type | ||
| 1211 |
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2 | std::vector<size_t> input = {1, 2, 3, 4}; |
| 1212 |
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2 | std::vector<std::string> output = CXXIter::from(std::move(input)) |
| 1213 |
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8 | .generateFrom([](size_t item) -> CXXIter::Generator<std::string> { |
| 1214 | for(size_t i = 0; i < item; ++i) { | ||
| 1215 | co_yield std::to_string(i); | ||
| 1216 | } | ||
| 1217 |
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8 | }) |
| 1218 |
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2 | .collect<std::vector>(); |
| 1219 |
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|
2 | ASSERT_THAT(output, ElementsAre("0", "0", "1", "0", "1", "2", "0", "1", "2", "3")); |
| 1220 |
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2 | } |
| 1221 | { // correct exception propagation | ||
| 1222 | try { | ||
| 1223 |
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2 | std::vector<int> input = {1337, 42}; |
| 1224 |
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4 | std::vector<int> output = CXXIter::from(input) |
| 1225 |
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5 | .generateFrom([](int item) -> CXXIter::Generator<int> { |
| 1226 | co_yield (item + 1); | ||
| 1227 | throw std::runtime_error("Exception From GeneratorFn"); | ||
| 1228 |
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2 | }) |
| 1229 |
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2 | .collect<std::vector>(); |
| 1230 | ✗ | ASSERT_TRUE(false); // unreachable! | |
| 1231 |
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4 | } catch (std::runtime_error& ex) { |
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2 | ASSERT_EQ(ex.what(), std::string("Exception From GeneratorFn")); |
| 1233 |
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2 | } |
| 1234 | } | ||
| 1235 | { // empty return | ||
| 1236 |
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10 | std::vector<std::string> input = {"1337", "42"}; |
| 1237 |
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2 | std::vector<std::string> output = CXXIter::from(std::move(input)) |
| 1238 |
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6 | .generateFrom([](std::string item) -> CXXIter::Generator<std::string> { |
| 1239 | if constexpr(false) { | ||
| 1240 | co_yield item; | ||
| 1241 | } | ||
| 1242 |
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4 | }) |
| 1243 |
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2 | .collect<std::vector>(); |
| 1244 |
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2 | ASSERT_EQ(output.size(), 0); |
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2 | ASSERT_THAT(output, ElementsAre()); |
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2 | } |
| 1247 | } | ||
| 1248 | #endif | ||
| 1249 | |||
| 1250 | 8 | TEST(CXXIter, stepBy) { | |
| 1251 | { | ||
| 1252 |
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2 | std::vector<int> input = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; |
| 1253 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1254 |
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2 | .stepBy(1) |
| 1255 |
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2 | .collect<std::vector>(); |
| 1256 |
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2 | ASSERT_EQ(output.size(), 11); |
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2 | ASSERT_THAT(output, ElementsAre(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)); |
| 1258 |
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2 | } |
| 1259 | { | ||
| 1260 |
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2 | std::vector<int> input = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; |
| 1261 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1262 |
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2 | .stepBy(2) |
| 1263 |
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2 | .collect<std::vector>(); |
| 1264 |
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2 | ASSERT_EQ(output.size(), 6); |
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2 | ASSERT_THAT(output, ElementsAre(0, 2, 4, 6, 8, 10)); |
| 1266 |
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2 | } |
| 1267 | { | ||
| 1268 |
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2 | std::vector<int> input = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; |
| 1269 |
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2 | std::vector<int> output = CXXIter::from(input) |
| 1270 |
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2 | .stepBy(3) |
| 1271 |
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2 | .collect<std::vector>(); |
| 1272 |
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2 | ASSERT_EQ(output.size(), 4); |
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2 | ASSERT_THAT(output, ElementsAre(0, 3, 6, 9)); |
| 1274 |
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2 | } |
| 1275 | } | ||
| 1276 | |||
| 1277 | 8 | TEST(CXXIter, zip) { | |
| 1278 | { // sizeHint | ||
| 1279 | { | ||
| 1280 |
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
| 1281 |
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2 | std::vector<int> input2 = {1337, 42, 64, 31337}; |
| 1282 |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied() |
| 1283 |
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2 | .zip(CXXIter::from(input2).copied()) |
| 1284 |
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2 | .sizeHint(); |
| 1285 |
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2 | ASSERT_EQ(sizeHint.lowerBound, input1.size()); |
| 1286 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input1.size()); |
| 1287 |
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2 | } |
| 1288 | { | ||
| 1289 |
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
| 1290 |
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2 | std::vector<int> input2 = {1337, 42, 64, 31337}; |
| 1291 |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied() |
| 1292 |
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2 | .zip(CXXIter::from(input2).copied().filter([](const auto&) { return true; })) |
| 1293 |
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2 | .sizeHint(); |
| 1294 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
| 1295 |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input1.size()); |
| 1296 |
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2 | } |
| 1297 | { | ||
| 1298 |
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
| 1299 |
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2 | std::vector<int> input2 = {1337, 42, 64, 31337}; |
| 1300 |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied().filter([](const auto&) { return true; }) |
| 1301 |
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2 | .zip(CXXIter::from(input2).copied()) |
| 1302 |
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2 | .sizeHint(); |
| 1303 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input1.size()); |
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2 | } |
| 1306 | } | ||
| 1307 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
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2 | std::vector<int> input2 = {1337, 42}; |
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2 | std::vector<std::pair<std::string, int>> output = CXXIter::from(input1).copied() |
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2 | .zip(CXXIter::from(input2).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size()); |
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2 | ASSERT_THAT(output, ElementsAre(Pair("1337", 1337), Pair("42", 42))); |
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2 | } |
| 1316 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
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2 | std::vector<int> input2 = {1337, 42, 80}; |
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2 | std::vector<std::pair<std::string, int>> output = CXXIter::from(input1).copied() |
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2 | .zip(CXXIter::from(input2).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output, ElementsAre(Pair("1337", 1337), Pair("42", 42))); |
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2 | } |
| 1325 | { | ||
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12 | std::vector<std::string> input1 = {"1337", "42", "80"}; |
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2 | std::vector<int> input2 = {1337, 42}; |
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2 | std::vector<std::pair<std::string, int>> output = CXXIter::from(input1).copied() |
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2 | .zip(CXXIter::from(input2).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output, ElementsAre(Pair("1337", 1337), Pair("42", 42))); |
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2 | } |
| 1334 | { | ||
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12 | std::vector<std::string> input1 = {"1337", "42", "80"}; |
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2 | std::vector<int> input2 = {1337, 42}; |
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2 | std::vector<std::pair<std::string&, int&>> output = CXXIter::from(input1) |
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2 | .zip(CXXIter::from(input2)) |
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4 | .modify([](std::pair<std::string&, int&> pair) { |
| 1340 | 2 | std::get<1>(pair) += 1; | |
| 1341 | 2 | }) | |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_THAT(output, ElementsAre(Pair("1337", 1338), Pair("42", 43))); |
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2 | ASSERT_THAT(input2, ElementsAre(1338, 43)); |
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2 | } |
| 1347 | } | ||
| 1348 | |||
| 1349 | 8 | TEST(CXXIter, zipTuple) { | |
| 1350 | { // sizeHint | ||
| 1351 | { | ||
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12 | std::vector<std::string> input1 = {"1337", "42", "80"}; |
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2 | std::vector<int> input2 = {1337, 42, 64, 31337}; |
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2 | std::vector<float> input3 = {1337.0f, 42.0f}; |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied() |
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2 | .zipTuple( |
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2 | CXXIter::from(input2).copied(), |
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2 | CXXIter::from(input3).copied() |
| 1359 | ) | ||
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input3.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input3.size()); |
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2 | } |
| 1364 | { | ||
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12 | std::vector<std::string> input1 = {"1337", "42", "80"}; |
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2 | std::vector<int> input2 = {1337, 42, 64, 31337}; |
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2 | std::vector<float> input3 = {1337.0f, 42.0f}; |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied() |
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2 | .zipTuple( |
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2 | CXXIter::from(input2).copied().filter([](const auto&) { return true; }), |
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2 | CXXIter::from(input3).copied() |
| 1372 | ) | ||
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input3.size()); |
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2 | } |
| 1377 | { | ||
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12 | std::vector<std::string> input1 = {"1337", "42", "80"}; |
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2 | std::vector<int> input2 = {1337, 42, 64, 31337}; |
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2 | std::vector<float> input3 = {1337.0f, 42.0f}; |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied() |
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2 | .zipTuple( |
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2 | CXXIter::from(input2).copied(), |
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2 | CXXIter::from(input3).copied().filter([](const auto&) { return true; }) |
| 1385 | ) | ||
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input3.size()); |
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2 | } |
| 1390 | { | ||
| 1391 |
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12 | std::vector<std::string> input1 = {"1337", "42", "80"}; |
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2 | std::vector<int> input2 = {1337, 42, 64, 31337}; |
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2 | std::vector<float> input3 = {1337.0f, 42.0f}; |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied().filter([](const auto&) { return true; }) |
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2 | .zipTuple(CXXIter::from(input2).copied(), CXXIter::from(input3).copied()) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input3.size()); |
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2 | } |
| 1400 | } | ||
| 1401 | { | ||
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12 | std::vector<std::string> input1 = {"1337", "42", "31337"}; |
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2 | std::vector<int> input2 = {1337, 42}; |
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2 | std::vector<float> input3 = {1337.0f, 42.0f, 64.0f}; |
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2 | std::vector<std::tuple<std::string, int, float>> output = CXXIter::from(input1).copied() |
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2 | .zipTuple(CXXIter::from(input2).copied(), CXXIter::from(input3).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input2.size()); |
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2 | ASSERT_THAT(output, ElementsAre(std::make_tuple("1337", 1337, 1337.0f), std::make_tuple("42", 42, 42.0f))); |
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2 | } |
| 1411 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
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2 | std::vector<int> input2 = {1337, 42, 80}; |
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2 | std::vector<float> input3 = {1337.0f, 42.0f, 64.0f}; |
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2 | std::vector<std::tuple<std::string, int, float>> output = CXXIter::from(input1).copied() |
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2 | .zipTuple(CXXIter::from(input2).copied(), CXXIter::from(input3).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size()); |
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2 | ASSERT_THAT(output, ElementsAre(std::make_tuple("1337", 1337, 1337.0f), std::make_tuple("42", 42, 42.0f))); |
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2 | } |
| 1421 | { | ||
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12 | std::vector<std::string> input1 = {"1337", "42", "80"}; |
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2 | std::vector<int> input2 = {1337, 42}; |
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2 | std::vector<float> input3 = {1337.0f}; |
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2 | std::vector<std::tuple<std::string, int, float>> output = CXXIter::from(input1).copied() |
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2 | .zipTuple(CXXIter::from(input2).copied(), CXXIter::from(input3).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input3.size()); |
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2 | ASSERT_THAT(output, ElementsAre(std::make_tuple("1337", 1337, 1337.0f))); |
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2 | } |
| 1431 | } | ||
| 1432 | |||
| 1433 | 8 | TEST(CXXIter, chain) { | |
| 1434 | { // sizeHint | ||
| 1435 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
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10 | std::vector<std::string> input2 = {"31337", "64"}; |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied() |
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2 | .chain(CXXIter::from(input2).copied()) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 4); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 4); |
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2 | } |
| 1444 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
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10 | std::vector<std::string> input2 = {"31337", "64"}; |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied() |
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2 | .chain(CXXIter::from(input2).copied().filter([](const auto&) { return true; })) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 4); |
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2 | } |
| 1453 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
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10 | std::vector<std::string> input2 = {"31337", "64"}; |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied().filter([](const auto&) { return true; }) |
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2 | .chain(CXXIter::from(input2).copied()) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 4); |
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2 | } |
| 1462 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
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4 | auto iter2 = CXXIter::repeat<std::string>("endless"); |
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2 | SizeHint sizeHint = CXXIter::from(input1).copied().filter([](const auto&) { return true; }) |
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4 | .chain(iter2.copied()) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, SizeHint::INFINITE); |
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2 | ASSERT_FALSE(sizeHint.upperBound.has_value()); |
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2 | } |
| 1471 | } | ||
| 1472 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
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10 | std::vector<std::string> input2 = {"31337", "64"}; |
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2 | std::vector<std::string> output = CXXIter::from(input1).copied() |
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2 | .chain(CXXIter::from(input2).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size() + input2.size()); |
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2 | ASSERT_THAT(output, ElementsAre("1337", "42", "31337", "64")); |
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2 | } |
| 1481 | { | ||
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10 | std::vector<std::string> input1 = {"1337", "42"}; |
| 1483 | 2 | std::vector<std::string> input2 = {}; | |
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2 | std::vector<std::string> output = CXXIter::from(input1).copied() |
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2 | .chain(CXXIter::from(input2).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size() + input2.size()); |
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2 | ASSERT_THAT(output, ElementsAre("1337", "42")); |
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2 | } |
| 1490 | { | ||
| 1491 | 2 | std::vector<std::string> input1 = {}; | |
| 1492 |
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12 | std::vector<std::string> input2 = {"31337", "64", "80"}; |
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2 | std::vector<std::string> output = CXXIter::from(input1).copied() |
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2 | .chain(CXXIter::from(input2).copied()) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size() + input2.size()); |
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2 | ASSERT_THAT(output, ElementsAre("31337", "64", "80")); |
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2 | } |
| 1499 | { | ||
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8 | std::vector<std::string> input1 = {"asdf"}; |
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12 | std::vector<std::string> input2 = {"31337", "64", "80"}; |
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2 | std::vector<std::string> output = CXXIter::from(input1).copied() |
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4 | .chain(CXXIter::from(std::move(input2))) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), 4); |
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2 | ASSERT_THAT(output, ElementsAre("asdf", "31337", "64", "80")); |
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2 | } |
| 1508 | } | ||
| 1509 | |||
| 1510 | 8 | TEST(CXXIter, alternate) { | |
| 1511 | { // sizeHint | ||
| 1512 | { | ||
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2 | std::vector<int> input1 = {1, 3, 5, 7, 9}; |
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2 | std::vector<int> input2 = {2, 4, 6, 8, 10}; |
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2 | std::vector<int> input3 = {100, 200, 300, 400, 500}; |
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2 | SizeHint sizeHint = CXXIter::from(input1) |
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2 | .alternate(CXXIter::from(input2), CXXIter::from(input3)) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input1.size() + input2.size() + input3.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input1.size() + input2.size() + input3.size()); |
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2 | } |
| 1522 | { | ||
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2 | std::vector<int> input1 = {1, 3, 5, 7}; |
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2 | std::vector<int> input2 = {2, 4, 6, 8, 10}; |
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2 | std::vector<int> input3 = {100, 200, 300, 400, 500}; |
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2 | SizeHint sizeHint = CXXIter::from(input1) |
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2 | .alternate(CXXIter::from(input2), CXXIter::from(input3)) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input1.size() * 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input1.size() * 3); |
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2 | } |
| 1532 | { | ||
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2 | std::vector<int> input1 = {1, 3, 5, 7, 9}; |
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2 | std::vector<int> input2 = {2, 4, 6, 8}; |
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2 | std::vector<int> input3 = {100, 200, 300, 400, 500}; |
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2 | SizeHint sizeHint = CXXIter::from(input1) |
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2 | .alternate(CXXIter::from(input2), CXXIter::from(input3)) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input2.size() * 3 + 1); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input2.size() * 3 + 1); |
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2 | } |
| 1542 | { | ||
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2 | std::vector<int> input1 = {1, 3, 5, 7, 9}; |
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2 | std::vector<int> input2 = {2, 4, 6, 8, 10}; |
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2 | std::vector<int> input3 = {100, 200, 300, 400}; |
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2 | SizeHint sizeHint = CXXIter::from(input1) |
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2 | .alternate(CXXIter::from(input2), CXXIter::from(input3)) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input3.size() * 3 + 2); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input3.size() * 3 + 2); |
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2 | } |
| 1552 | } | ||
| 1553 | { | ||
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2 | std::vector<int> input1 = {1, 3, 5, 7, 9}; |
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2 | std::vector<int> input2 = {2, 4, 6, 8, 10}; |
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2 | std::vector<int> input3 = {100, 200, 300, 400, 500}; |
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2 | std::vector<int> output = CXXIter::from(input1) |
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2 | .alternate(CXXIter::from(input2), CXXIter::from(input3)) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size() + input2.size() + input3.size()); |
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2 | ASSERT_THAT(output, ElementsAre(1, 2, 100, 3, 4, 200, 5, 6, 300, 7, 8, 400, 9, 10, 500)); |
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2 | } |
| 1563 | { | ||
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2 | std::vector<int> input1 = {1, 3, 5, 7}; |
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2 | std::vector<int> input2 = {2, 4, 6, 8, 10}; |
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2 | std::vector<int> input3 = {100, 200, 300, 400, 500}; |
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2 | std::vector<int> output = CXXIter::from(input1) |
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2 | .alternate(CXXIter::from(input2), CXXIter::from(input3)) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input1.size() * 3); |
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2 | ASSERT_THAT(output, ElementsAre(1, 2, 100, 3, 4, 200, 5, 6, 300, 7, 8, 400)); |
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2 | } |
| 1573 | { | ||
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2 | std::vector<int> input1 = {1, 3, 5, 7, 9}; |
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2 | std::vector<int> input2 = {2, 4, 6, 8}; |
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2 | std::vector<int> input3 = {100, 200, 300, 400, 500}; |
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2 | std::vector<int> output = CXXIter::from(input1) |
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2 | .alternate(CXXIter::from(input2), CXXIter::from(input3)) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input2.size() * 3 + 1); |
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2 | ASSERT_THAT(output, ElementsAre(1, 2, 100, 3, 4, 200, 5, 6, 300, 7, 8, 400, 9)); |
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2 | } |
| 1583 | { | ||
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2 | std::vector<int> input1 = {1, 3, 5, 7, 9}; |
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2 | std::vector<int> input2 = {2, 4, 6, 8, 10}; |
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2 | std::vector<int> input3 = {100, 200, 300, 400}; |
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2 | std::vector<int> output = CXXIter::from(input1) |
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2 | .alternate(CXXIter::from(input2), CXXIter::from(input3)) |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input3.size() * 3 + 2); |
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2 | ASSERT_THAT(output, ElementsAre(1, 2, 100, 3, 4, 200, 5, 6, 300, 7, 8, 400, 9, 10)); |
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2 | } |
| 1593 | } | ||
| 1594 | |||
| 1595 | 8 | TEST(CXXIter, intersperse) { | |
| 1596 | { // sizeHint | ||
| 1597 | { | ||
| 1598 |
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2 | std::vector<int> input = { 1, 2, 3, 4, 5, 6 }; |
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2 | SizeHint sizeHint = CXXIter::from(input).copied() |
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2 | .intersperse(CXXIter::repeat(0)) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size() * 2 - 1); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size() * 2 - 1); |
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2 | } |
| 1605 | { | ||
| 1606 |
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12 | std::vector<std::string> input = { "Apple", "Orange", "Cake" }; |
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2 | SizeHint sizeHint = CXXIter::from(input).copied() |
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4 | .intersperse(CXXIter::repeat<std::string>(", ")) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size() * 2 - 1); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size() * 2 - 1); |
| 1612 |
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2 | } |
| 1613 | { // separator iterator ends too early | ||
| 1614 |
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2 | std::vector<int> input = { 1, 2, 3, 4, 5, 6 }; |
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2 | SizeHint sizeHint = CXXIter::from(input).copied() |
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2 | .intersperse(CXXIter::range(100, 102, 1)) |
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2 | .sizeHint(); |
| 1618 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 4 + 3); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 4 + 3); |
| 1620 |
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2 | } |
| 1621 | { // separator iterator empty | ||
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2 | std::vector<int> input = { 1, 2, 3, 4, 5, 6 }; |
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2 | SizeHint sizeHint = CXXIter::from(input).copied() |
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2 | .intersperse(CXXIter::empty<int>()) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 1); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 1); |
| 1628 |
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2 | } |
| 1629 | { // input empty | ||
| 1630 | 2 | SizeHint sizeHint = CXXIter::empty<int>() | |
| 1631 |
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2 | .intersperse(CXXIter::repeat<int>(0)) |
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, 0); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), 0); |
| 1635 | } | ||
| 1636 | } | ||
| 1637 | { | ||
| 1638 |
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2 | std::vector<int> input = { 1, 2, 3, 4, 5, 6 }; |
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2 | std::vector<int> output = CXXIter::from(input).copied() |
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2 | .intersperse(CXXIter::repeat(0)) |
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2 | .collect<std::vector>(); |
| 1642 |
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2 | ASSERT_EQ(output.size(), input.size() * 2 - 1); |
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2 | ASSERT_THAT(output, ElementsAre(1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6)); |
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2 | } |
| 1645 | { | ||
| 1646 |
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12 | std::vector<std::string> input = { "Apple", "Orange", "Cake" }; |
| 1647 |
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2 | std::vector<std::string> output = CXXIter::from(input).copied() |
| 1648 |
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4 | .intersperse(CXXIter::repeat<std::string>(", ")) |
| 1649 |
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2 | .collect<std::vector>(); |
| 1650 |
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2 | ASSERT_EQ(output.size(), input.size() * 2 - 1); |
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2 | ASSERT_THAT(output, ElementsAre("Apple", ", ", "Orange", ", ", "Cake")); |
| 1652 |
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2 | } |
| 1653 | { // separator iterator ends too early | ||
| 1654 |
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2 | std::vector<int> input = { 1, 2, 3, 4, 5, 6 }; |
| 1655 |
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2 | std::vector<int> output = CXXIter::from(input).copied() |
| 1656 |
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2 | .intersperse(CXXIter::range(100, 102, 1)) |
| 1657 |
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2 | .collect<std::vector>(); |
| 1658 |
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2 | ASSERT_EQ(output.size(), 7); |
| 1659 |
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2 | ASSERT_THAT(output, ElementsAre(1, 100, 2, 101, 3, 102, 4)); |
| 1660 |
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2 | } |
| 1661 | { // separator iterator empty | ||
| 1662 |
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2 | std::vector<int> input = { 1, 2, 3, 4, 5, 6 }; |
| 1663 |
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2 | std::vector<int> output = CXXIter::from(input).copied() |
| 1664 |
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2 | .intersperse(CXXIter::empty<int>()) |
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2 | .collect<std::vector>(); |
| 1666 |
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2 | ASSERT_EQ(output.size(), 1); |
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2 | ASSERT_THAT(output, ElementsAre(1)); |
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2 | } |
| 1669 | } | ||
| 1670 | |||
| 1671 | 8 | TEST(CXXIter, groupBy) { | |
| 1672 | struct CakeMeasurement { | ||
| 1673 | std::string cakeType; | ||
| 1674 | float cakeWeight; | ||
| 1675 | 3 | bool operator==(const CakeMeasurement& o) const { | |
| 1676 |
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3 | return cakeType == o.cakeType && cakeWeight == o.cakeWeight; |
| 1677 | } | ||
| 1678 | }; | ||
| 1679 |
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12 | std::vector<CakeMeasurement> input = { {"ApplePie", 1.3f}, {"Sacher", 0.5f}, {"ApplePie", 1.8f} }; |
| 1680 | |||
| 1681 | { // sizeHint | ||
| 1682 |
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2 | SizeHint sizeHint = CXXIter::from(input) |
| 1683 |
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4 | .groupBy([](const CakeMeasurement& item) { return item.cakeType; }) |
| 1684 |
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2 | .sizeHint(); |
| 1685 |
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2 | ASSERT_EQ(sizeHint.lowerBound, 1); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
| 1687 | } | ||
| 1688 | { | ||
| 1689 |
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2 | auto output = CXXIter::from(input) |
| 1690 |
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5 | .groupBy([](const CakeMeasurement& item) { return item.cakeType; }) |
| 1691 |
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2 | .collect<std::unordered_map>(); |
| 1692 |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_EQ(output["ApplePie"].size(), 2); |
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4 | ASSERT_EQ(output["ApplePie"][0], input[0]); |
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4 | ASSERT_EQ(output["ApplePie"][1], input[2]); |
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2 | ASSERT_EQ(output["Sacher"].size(), 1); |
| 1697 |
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4 | ASSERT_EQ(output["Sacher"][0], input[1]); |
| 1698 |
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2 | } |
| 1699 | { // mapping of groupIdentifier to first value of each group | ||
| 1700 |
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2 | auto output = CXXIter::from(input) |
| 1701 |
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5 | .groupBy([](const CakeMeasurement& item) { return item.cakeType; }) |
| 1702 |
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6 | .map([](std::pair<std::string, std::vector<CakeMeasurement>>&& itemGroup) { |
| 1703 | 2 | return std::make_pair(itemGroup.first, itemGroup.second[0]); | |
| 1704 | }) | ||
| 1705 |
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2 | .collect<std::unordered_map>(); |
| 1706 |
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2 | ASSERT_EQ(output.size(), 2); |
| 1707 |
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4 | ASSERT_EQ(output["ApplePie"].cakeType, "ApplePie"); |
| 1708 |
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4 | ASSERT_EQ(output["ApplePie"].cakeWeight, 1.3f); |
| 1709 |
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4 | ASSERT_EQ(output["Sacher"].cakeType, "Sacher"); |
| 1710 |
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4 | ASSERT_EQ(output["Sacher"].cakeWeight, 0.5f); |
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2 | } |
| 1712 | { | ||
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2 | auto output = CXXIter::from(std::move(input)) |
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7 | .groupBy([](const CakeMeasurement& item) { return item.cakeType; }) |
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2 | .collect<std::unordered_map>(); |
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2 | ASSERT_EQ(output.size(), 2); |
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2 | ASSERT_EQ(output["ApplePie"].size(), 2); |
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4 | ASSERT_EQ(output["ApplePie"][0].cakeType, "ApplePie"); |
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4 | ASSERT_EQ(output["ApplePie"][0].cakeWeight, 1.3f); |
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4 | ASSERT_EQ(output["ApplePie"][1].cakeType, "ApplePie"); |
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4 | ASSERT_EQ(output["ApplePie"][1].cakeWeight, 1.8f); |
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2 | ASSERT_EQ(output["Sacher"].size(), 1); |
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4 | ASSERT_EQ(output["Sacher"][0].cakeType, "Sacher"); |
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4 | ASSERT_EQ(output["Sacher"][0].cakeWeight, 0.5f); |
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2 | } |
| 1726 | { | ||
| 1727 | 2 | std::vector<CakeMeasurement> emptyInput; | |
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2 | auto output = CXXIter::from(std::move(emptyInput)) |
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4 | .groupBy([](const CakeMeasurement& item) { return item.cakeType; }) |
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2 | .collect<std::unordered_map>(); |
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2 | ASSERT_EQ(output.size(), 0); |
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2 | } |
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2 | } |
| 1734 | |||
| 1735 | 8 | TEST(CXXIter, sort) { | |
| 1736 | { // sizeHint | ||
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2 | std::vector<float> input = {1.0f, 2.0f, 0.5f, 3.0f, -42.0f}; |
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2 | SizeHint sizeHint = CXXIter::from(input) |
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4 | .sort<false>([](const float& a, const float& b) { |
| 1740 | return (a < b); | ||
| 1741 | }) | ||
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2 | .sizeHint(); |
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2 | ASSERT_EQ(sizeHint.lowerBound, input.size()); |
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2 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); |
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2 | } |
| 1746 | { // ASCENDING | ||
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2 | std::vector<float> input = {1.0f, 2.0f, 0.5f, 3.0f, -42.0f}; |
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2 | std::vector<float> output = CXXIter::from(input) |
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8 | .sort<false>([](const float& a, const float& b) { |
| 1750 | 6 | return (a < b); | |
| 1751 | }) | ||
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input.size()); |
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2 | ASSERT_THAT(output, ElementsAre(-42.0f, 0.5f, 1.0f, 2.0f, 3.0f)); |
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2 | } |
| 1756 | { // DESCENDING | ||
| 1757 |
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2 | std::vector<float> input = {1.0f, 2.0f, 0.5f, 3.0f, -42.0f}; |
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2 | std::vector<float> output = CXXIter::from(input) |
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8 | .sort<false>([](const float& a, const float& b) { |
| 1760 | 6 | return (a > b); | |
| 1761 | }) | ||
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input.size()); |
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2 | ASSERT_THAT(output, ElementsAre(3.0f, 2.0f, 1.0f, 0.5f, -42.0f)); |
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2 | } |
| 1766 | { // ASCENDING | ||
| 1767 |
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2 | std::vector<float> input = {1.0f, 2.0f, 0.5f, 3.0f, -42.0f}; |
| 1768 |
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2 | std::vector<float> output = CXXIter::from(input) |
| 1769 |
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2 | .sort<CXXIter::ASCENDING, false>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input.size()); |
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2 | ASSERT_THAT(output, ElementsAre(-42.0f, 0.5f, 1.0f, 2.0f, 3.0f)); |
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2 | } |
| 1774 | { // DESCENDING | ||
| 1775 |
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2 | std::vector<float> input = {1.0f, 2.0f, 0.5f, 3.0f, -42.0f}; |
| 1776 |
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2 | std::vector<float> output = CXXIter::from(input) |
| 1777 |
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2 | .sort<CXXIter::DESCENDING, false>() |
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2 | .collect<std::vector>(); |
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2 | ASSERT_EQ(output.size(), input.size()); |
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2 | ASSERT_THAT(output, ElementsAre(3.0f, 2.0f, 1.0f, 0.5f, -42.0f)); |
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2 | } |
| 1782 | } | ||
| 1783 | |||
| 1784 | 4 | TEST(CXXIter, sortBy) { | |
| 1785 | { // sizeHint | ||
| 1786 | 8 | std::vector<std::string> input = {"test1", "test2", "test23", "test", "tes"}; | |
| 1787 | 1 | SizeHint sizeHint = CXXIter::from(input) | |
| 1788 | 2 | .sortBy<CXXIter::ASCENDING, true>([](const std::string& item) { return item.size(); }) | |
| 1789 | 1 | .sizeHint(); | |
| 1790 | 1 | ASSERT_EQ(sizeHint.lowerBound, input.size()); | |
| 1791 | 1 | ASSERT_EQ(sizeHint.upperBound.value(), input.size()); | |
| 1792 | 1 | } | |
| 1793 | { // ASCENDING | ||
| 1794 | 8 | std::vector<std::string> input = {"test1", "test2", "test23", "test", "tes"}; | |
| 1795 | 1 | std::vector<std::string> output = CXXIter::from(input) | |
| 1796 | 17 | .sortBy<CXXIter::ASCENDING, true>([](const std::string& item) { return item.size(); }) | |
| 1797 | 1 | .collect<std::vector>(); | |
| 1798 | 1 | ASSERT_EQ(output.size(), input.size()); | |
| 1799 | 1 | ASSERT_THAT(output, ElementsAre("tes", "test", "test1", "test2", "test23")); | |
| 1800 | 1 | } | |
| 1801 | { // DESCENDING | ||
| 1802 | 8 | std::vector<std::string> input = {"test1", "test2", "test23", "test", "tes"}; | |
| 1803 | 1 | std::vector<std::string> output = CXXIter::from(input) | |
| 1804 | 15 | .sortBy<CXXIter::DESCENDING, true>([](const std::string& item) { return item.size(); }) | |
| 1805 | 1 | .collect<std::vector>(); | |
| 1806 | 1 | ASSERT_EQ(output.size(), input.size()); | |
| 1807 | 1 | ASSERT_THAT(output, ElementsAre("test23", "test1", "test2", "test", "tes")); | |
| 1808 | 1 | } | |
| 1809 | |||
| 1810 | { // Lambda capture | ||
| 1811 | 1 | float ref = 600.0; | |
| 1812 | 7 | std::vector<std::string> input = {"1337", "55", "500", "10000"}; | |
| 1813 | 1 | auto output = CXXIter::from(input) | |
| 1814 | 9 | .sortBy([&](const std::string& val) { return std::abs(std::stof(val) - ref); }) | |
| 1815 | 1 | .collect<std::vector>(); | |
| 1816 | 1 | ASSERT_EQ(output.size(), input.size()); | |
| 1817 | 1 | ASSERT_THAT(output, ElementsAre("500", "55", "1337", "10000")); | |
| 1818 | 1 | } | |
| 1819 | } | ||
| 1820 |