/*************************************************************************/ /* test_color.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #ifndef TEST_COLOR_H #define TEST_COLOR_H #include "core/math/color.h" #include "tests/test_macros.h" namespace TestColor { TEST_CASE("[Color] Constructor methods") { const Color blue_rgba = Color(0.25098, 0.376471, 1, 0.501961); const Color blue_html = Color::html("#4060ff80"); const Color blue_hex = Color::hex(0x4060ff80); const Color blue_hex64 = Color::hex64(0x4040'6060'ffff'8080); CHECK_MESSAGE( blue_rgba.is_equal_approx(blue_html), "Creation with HTML notation should result in components approximately equal to the default constructor."); CHECK_MESSAGE( blue_rgba.is_equal_approx(blue_hex), "Creation with a 32-bit hexadecimal number should result in components approximately equal to the default constructor."); CHECK_MESSAGE( blue_rgba.is_equal_approx(blue_hex64), "Creation with a 64-bit hexadecimal number should result in components approximately equal to the default constructor."); ERR_PRINT_OFF; const Color html_invalid = Color::html("invalid"); ERR_PRINT_ON; CHECK_MESSAGE( html_invalid.is_equal_approx(Color()), "Creation with invalid HTML notation should result in a Color with the default values."); const Color green_rgba = Color(0, 1, 0, 0.25); const Color green_hsva = Color(0, 0, 0).from_hsv(120 / 360.0, 1, 1, 0.25); CHECK_MESSAGE( green_rgba.is_equal_approx(green_hsva), "Creation with HSV notation should result in components approximately equal to the default constructor."); } TEST_CASE("[Color] Operators") { const Color blue = Color(0.2, 0.2, 1); const Color dark_red = Color(0.3, 0.1, 0.1); // Color components may be negative. Also, the alpha component may be greater than 1.0. CHECK_MESSAGE( (blue + dark_red).is_equal_approx(Color(0.5, 0.3, 1.1, 2)), "Color addition should behave as expected."); CHECK_MESSAGE( (blue - dark_red).is_equal_approx(Color(-0.1, 0.1, 0.9, 0)), "Color subtraction should behave as expected."); CHECK_MESSAGE( (blue * 2).is_equal_approx(Color(0.4, 0.4, 2, 2)), "Color multiplication with a scalar should behave as expected."); CHECK_MESSAGE( (blue / 2).is_equal_approx(Color(0.1, 0.1, 0.5, 0.5)), "Color division with a scalar should behave as expected."); CHECK_MESSAGE( (blue * dark_red).is_equal_approx(Color(0.06, 0.02, 0.1)), "Color multiplication with another Color should behave as expected."); CHECK_MESSAGE( (blue / dark_red).is_equal_approx(Color(0.666667, 2, 10)), "Color division with another Color should behave as expected."); CHECK_MESSAGE( (-blue).is_equal_approx(Color(0.8, 0.8, 0, 0)), "Color negation should behave as expected (affecting the alpha channel, unlike `invert()`)."); } TEST_CASE("[Color] Reading methods") { const Color dark_blue = Color(0, 0, 0.5, 0.4); CHECK_MESSAGE( Math::is_equal_approx(dark_blue.get_h(), 240.0f / 360.0f), "The returned HSV hue should match the expected value."); CHECK_MESSAGE( Math::is_equal_approx(dark_blue.get_s(), 1.0f), "The returned HSV saturation should match the expected value."); CHECK_MESSAGE( Math::is_equal_approx(dark_blue.get_v(), 0.5f), "The returned HSV value should match the expected value."); } TEST_CASE("[Color] Conversion methods") { const Color cyan = Color(0, 1, 1); const Color cyan_transparent = Color(0, 1, 1, 0); CHECK_MESSAGE( cyan.to_html() == "00ffffff", "The returned RGB HTML color code should match the expected value."); CHECK_MESSAGE( cyan_transparent.to_html() == "00ffff00", "The returned RGBA HTML color code should match the expected value."); CHECK_MESSAGE( cyan.to_argb32() == 0xff00ffff, "The returned 32-bit RGB number should match the expected value."); CHECK_MESSAGE( cyan.to_abgr32() == 0xffffff00, "The returned 32-bit BGR number should match the expected value."); CHECK_MESSAGE( cyan.to_rgba32() == 0x00ffffff, "The returned 32-bit BGR number should match the expected value."); CHECK_MESSAGE( cyan.to_argb64() == 0xffff'0000'ffff'ffff, "The returned 64-bit RGB number should match the expected value."); CHECK_MESSAGE( cyan.to_abgr64() == 0xffff'ffff'ffff'0000, "The returned 64-bit BGR number should match the expected value."); CHECK_MESSAGE( cyan.to_rgba64() == 0x0000'ffff'ffff'ffff, "The returned 64-bit BGR number should match the expected value."); CHECK_MESSAGE( String(cyan) == "(0, 1, 1, 1)", "The string representation should match the expected value."); } TEST_CASE("[Color] Named colors") { CHECK_MESSAGE( Color::named("red").is_equal_approx(Color(1, 0, 0)), "The named color \"red\" should match the expected value."); // Named colors have their names automatically normalized. CHECK_MESSAGE( Color::named("white_smoke").is_equal_approx(Color(0.96, 0.96, 0.96)), "The named color \"white_smoke\" should match the expected value."); CHECK_MESSAGE( Color::named("Slate Blue").is_equal_approx(Color(0.42, 0.35, 0.80)), "The named color \"Slate Blue\" should match the expected value."); ERR_PRINT_OFF; CHECK_MESSAGE( Color::named("doesn't exist").is_equal_approx(Color()), "The invalid named color \"doesn't exist\" should result in a Color with the default values."); ERR_PRINT_ON; } TEST_CASE("[Color] Validation methods") { CHECK_MESSAGE( Color::html_is_valid("#4080ff"), "Valid HTML color (with leading #) should be considered valid."); CHECK_MESSAGE( Color::html_is_valid("4080ff"), "Valid HTML color (without leading #) should be considered valid."); CHECK_MESSAGE( !Color::html_is_valid("12345"), "Invalid HTML color should be considered invalid."); CHECK_MESSAGE( !Color::html_is_valid("#fuf"), "Invalid HTML color should be considered invalid."); } TEST_CASE("[Color] Manipulation methods") { const Color blue = Color(0, 0, 1, 0.4); CHECK_MESSAGE( blue.inverted().is_equal_approx(Color(1, 1, 0, 0.4)), "Inverted color should have its red, green and blue components inverted."); const Color purple = Color(0.5, 0.2, 0.5, 0.25); CHECK_MESSAGE( purple.lightened(0.2).is_equal_approx(Color(0.6, 0.36, 0.6, 0.25)), "Color should be lightened by the expected amount."); CHECK_MESSAGE( purple.darkened(0.2).is_equal_approx(Color(0.4, 0.16, 0.4, 0.25)), "Color should be darkened by the expected amount."); const Color red = Color(1, 0, 0, 0.2); const Color yellow = Color(1, 1, 0, 0.8); CHECK_MESSAGE( red.lerp(yellow, 0.5).is_equal_approx(Color(1, 0.5, 0, 0.5)), "Red interpolated with yellow should be orange (with interpolated alpha)."); } } // namespace TestColor #endif // TEST_COLOR_H