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Reuse callables in pairwise_all tests

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This commit is contained in:
Chip Hogg
2022-01-11 19:44:10 -05:00
parent bdf488db04
commit a306472a6b
1 changed files with 17 additions and 9 deletions
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26
test/unit_test/runtime/magnitude_test.cpp
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@@ -330,25 +330,33 @@ TEST_CASE("is_valid_base_power")
TEST_CASE("pairwise_all evaluates all pairs")
{
const auto all_pairs_return_true = pairwise_all{[](auto, auto){ return true; }};
const auto all_pairs_return_false = pairwise_all{[](auto, auto){ return false; }};
const auto all_increasing = pairwise_all{std::less{}};
SECTION("always true for empty tuples")
{
CHECK(pairwise_all{[](auto, auto){ return true; }}());
CHECK(pairwise_all{[](auto, auto){ return false; }}());
CHECK(all_pairs_return_true());
CHECK(all_pairs_return_false());
}
SECTION("always true for single-element tuples")
{
CHECK(pairwise_all{[](auto, auto){ return true; }}(1));
CHECK(pairwise_all{[](auto, auto){ return false; }}(3.14));
CHECK(pairwise_all{[](auto, auto){ return true; }}('x'));
CHECK(all_pairs_return_true(1));
CHECK(all_pairs_return_false(3.14));
CHECK(all_pairs_return_true('x'));
}
SECTION("true for longer tuples iff true for all neighbouring pairs")
{
CHECK(pairwise_all{std::less{}}(1, 1.5));
CHECK(pairwise_all{std::less{}}(1, 1.5, 2));
CHECK(!pairwise_all{std::less{}}(1, 2.0, 2));
CHECK(!pairwise_all{std::less{}}(1, 2.5, 2));
CHECK(all_increasing(1, 1.5));
CHECK(all_increasing(1, 1.5, 2));
CHECK(!all_increasing(1, 2.0, 2));
CHECK(!all_increasing(1, 2.5, 2));
CHECK(all_pairs_return_true('c', 1, 8.9, 42u));
CHECK(!all_pairs_return_false('c', 1, 8.9, 42u));
}
}