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201648485f
- Hue now wraps properly when negative or larger than 360 - The hsl to rgb conversion now closely mirrors the code example from the spec. This fixes a number of WPT tests in /css/css-color/parsing/color-computed-hsl.html
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
/*
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* Copyright (c) 2024, Lucas Chollet <lucas.chollet@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGfx/Color.h>
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#include <LibTest/TestCase.h>
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TEST_CASE(color)
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{
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for (u16 i = 0; i < 256; ++i) {
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auto const gray = Color(i, i, i);
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EXPECT_EQ(gray, gray.to_grayscale());
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}
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}
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TEST_CASE(all_green)
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{
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EXPECT_EQ(Color(Color::NamedColor::Green), Color::from_lab(87.8185, -79.2711, 80.9946));
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EXPECT_EQ(Color(Color::NamedColor::Green), Color::from_xyz50(0.385152, 0.716887, 0.097081));
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EXPECT_EQ(Color(Color::NamedColor::Green), Color::from_xyz65(0.357584, 0.715169, 0.119195));
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}
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TEST_CASE(hsv)
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{
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EXPECT_EQ(Color(51, 179, 51), Color::from_hsv(120, 0.714285714, .7));
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EXPECT_EQ(Color(51, 179, 51, 128), Color::from_hsv(120, 0.714285714, .7).with_opacity(0.5));
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EXPECT_EQ(Color(87, 128, 77), Color::from_hsv(108, 0.4, .5));
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}
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TEST_CASE(hsl)
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{
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EXPECT_EQ(Color(191, 191, 0), Color::from_hsl(-300, 1.0, 0.375));
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EXPECT_EQ(Color(159, 138, 96), Color::from_hsl(400, 0.25, 0.5));
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EXPECT_EQ(Color(159, 96, 128), Color::from_hsl(330, 0.25, 0.5));
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EXPECT_EQ(Color(128, 0, 128), Color::from_hsl(300, 1.0, 0.25));
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EXPECT_EQ(Color(0, 128, 128), Color::from_hsl(180, 1.0, 0.25));
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EXPECT_EQ(Color(128, 239, 16), Color::from_hsl(90, 0.875, 0.5));
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EXPECT_EQ(Color(128, 223, 32), Color::from_hsl(90, 0.75, 0.5));
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EXPECT_EQ(Color(128, 207, 48), Color::from_hsl(90, 0.625, 0.5));
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EXPECT_EQ(Color(128, 191, 64), Color::from_hsl(90, 0.5, 0.5));
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EXPECT_EQ(Color(128, 175, 80), Color::from_hsl(90, 0.375, 0.5));
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EXPECT_EQ(Color(128, 159, 96), Color::from_hsl(90, 0.25, 0.5));
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}
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