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#include <gtest/gtest.h>
#include <pog/utils.h>
class TestUtils : public ::testing::Test {};
TEST_F(TestUtils,
transform_if) {
std::vector<int> v{0, 1, 2, 3, 4, 5, 6};
std::vector<int> result;
pog::transform_if(v.begin(), v.end(), std::back_inserter(result),
[](auto i) { return i % 2 == 0; },
[](auto i) { return i + 10; }
);
EXPECT_EQ(result, (std::vector<int>{10, 12, 14, 16}));
result.clear();
pog::transform_if(v.begin(), v.end(), std::back_inserter(result),
[](auto i) { return i < 100; },
[](auto i) { return i + 10; }
);
EXPECT_EQ(result, (std::vector<int>{10, 11, 12, 13, 14, 15, 16}));
result.clear();
pog::transform_if(v.begin(), v.end(), std::back_inserter(result),
[](auto i) { return i > 100; },
[](auto i) { return i + 10; }
);
EXPECT_EQ(result, (std::vector<int>{}));
}
TEST_F(TestUtils,
accumulate_if) {
std::vector<int> v{1, 2, 3, 4, 5, 6};
auto result = pog::accumulate_if(v.begin(), v.end(), 0,
[](auto i) { return i % 2 == 0; },
[](auto res, auto i) { return res + i; }
);
EXPECT_EQ(result, 12);
result = pog::accumulate_if(v.begin(), v.end(), 0,
[](auto i) { return i < 100; },
[](auto res, auto i) { return res + i; }
);
EXPECT_EQ(result, 21);
result = pog::accumulate_if(v.begin(), v.end(), 0,
[](auto i) { return i > 100; },
[](auto res, auto i) { return res + i; }
);
EXPECT_EQ(result, 0);
}
TEST_F(TestUtils,
hash_combine) {
EXPECT_EQ(pog::hash_combine(1, 2), pog::hash_combine(1, 2));
EXPECT_NE(pog::hash_combine(1, 2), pog::hash_combine(1, 3));
EXPECT_NE(pog::hash_combine(1, 2), pog::hash_combine(2, 1));
EXPECT_NE(pog::hash_combine(1, 2), pog::hash_combine(1, 2, 3));
}
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