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Add test to ensure that color_casts keep the same alpha value

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This commit is contained in:
Robert Müller 2023-06-04 23:37:14 +02:00
parent 40327454f6
commit 85bfe19cbe
1 changed files with 16 additions and 0 deletions
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16
src/test/color.cpp
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@ -23,3 +23,19 @@ TEST(Color, HRHConv)
}
}
}
// Any color_cast should keep the same alpha value
TEST(Color, ConvKeepsAlpha)
{
const int Max = 10;
for(int i = 0; i <= Max; i++)
{
const float Alpha = i / (float)Max;
EXPECT_FLOAT_EQ(color_cast<ColorRGBA>(ColorHSLA(0.1f, 0.2f, 0.3f, Alpha)).a, Alpha);
EXPECT_FLOAT_EQ(color_cast<ColorRGBA>(ColorHSVA(0.1f, 0.2f, 0.3f, Alpha)).a, Alpha);
EXPECT_FLOAT_EQ(color_cast<ColorHSLA>(ColorRGBA(0.1f, 0.2f, 0.3f, Alpha)).a, Alpha);
EXPECT_FLOAT_EQ(color_cast<ColorHSLA>(ColorHSVA(0.1f, 0.2f, 0.3f, Alpha)).a, Alpha);
EXPECT_FLOAT_EQ(color_cast<ColorHSVA>(ColorRGBA(0.1f, 0.2f, 0.3f, Alpha)).a, Alpha);
EXPECT_FLOAT_EQ(color_cast<ColorHSVA>(ColorHSLA(0.1f, 0.2f, 0.3f, Alpha)).a, Alpha);
}
}