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Implement "common Magnitude" of two Magnitudes

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Chip Hogg committed 2022-04-11 15:16:15 +00:00
1 parent bc98254e7a
commit af8eec1102
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test/unit_test/runtime/magnitude_test.cpp
+21
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@@ -292,6 +292,27 @@ TEST_CASE("Multiplication works for magnitudes")
}
}
TEST_CASE("Common Magnitude")
{
SECTION("Identity for identical magnitudes")
{
CHECK(common_magnitude(as_magnitude<1>(), as_magnitude<1>()) == as_magnitude<1>());
CHECK(common_magnitude(as_magnitude<15>(), as_magnitude<15>()) == as_magnitude<15>());
CHECK(common_magnitude(pi_to_the<ratio{3, 4}>(), pi_to_the<ratio{3, 4}>()) == pi_to_the<ratio{3, 4}>());
}
SECTION("Greatest Common Factor for integers")
{
CHECK(common_magnitude(as_magnitude<24>(), as_magnitude<36>()) == as_magnitude<12>());
CHECK(common_magnitude(as_magnitude<24>(), as_magnitude<37>()) == as_magnitude<1>());
}
SECTION("Handles fractions")
{
CHECK(common_magnitude(as_magnitude<ratio{3, 8}>(), as_magnitude<ratio{5, 6}>()) == as_magnitude<ratio{1, 24}>());
}
}
TEST_CASE("Division works for magnitudes")
{
SECTION("Dividing anything by itself reduces to null magnitude")