mirror of
https://github.com/godotengine/godot
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554c776e08
The order of numbers is not changed except for Transform2D. All logic is done inside of their structures (and not in Variant). For the number of decimals printed, they now use String::num_real which works best with real_t, except for Color which is fixed at 4 decimals (this is a reliable number of float digits when converting from 16-bpc so it seems like a good choice)
207 lines
8.6 KiB
C++
207 lines
8.6 KiB
C++
/*************************************************************************/
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/* test_color.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef TEST_COLOR_H
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#define TEST_COLOR_H
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#include "core/math/color.h"
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#include "thirdparty/doctest/doctest.h"
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namespace TestColor {
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TEST_CASE("[Color] Constructor methods") {
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const Color blue_rgba = Color(0.25098, 0.376471, 1, 0.501961);
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const Color blue_html = Color::html("#4060ff80");
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const Color blue_hex = Color::hex(0x4060ff80);
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const Color blue_hex64 = Color::hex64(0x4040'6060'ffff'8080);
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CHECK_MESSAGE(
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blue_rgba.is_equal_approx(blue_html),
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"Creation with HTML notation should result in components approximately equal to the default constructor.");
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CHECK_MESSAGE(
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blue_rgba.is_equal_approx(blue_hex),
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"Creation with a 32-bit hexadecimal number should result in components approximately equal to the default constructor.");
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CHECK_MESSAGE(
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blue_rgba.is_equal_approx(blue_hex64),
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"Creation with a 64-bit hexadecimal number should result in components approximately equal to the default constructor.");
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ERR_PRINT_OFF;
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const Color html_invalid = Color::html("invalid");
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ERR_PRINT_ON;
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CHECK_MESSAGE(
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html_invalid.is_equal_approx(Color()),
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"Creation with invalid HTML notation should result in a Color with the default values.");
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const Color green_rgba = Color(0, 1, 0, 0.25);
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const Color green_hsva = Color(0, 0, 0).from_hsv(120 / 360.0, 1, 1, 0.25);
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CHECK_MESSAGE(
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green_rgba.is_equal_approx(green_hsva),
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"Creation with HSV notation should result in components approximately equal to the default constructor.");
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}
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TEST_CASE("[Color] Operators") {
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const Color blue = Color(0.2, 0.2, 1);
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const Color dark_red = Color(0.3, 0.1, 0.1);
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// Color components may be negative. Also, the alpha component may be greater than 1.0.
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CHECK_MESSAGE(
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(blue + dark_red).is_equal_approx(Color(0.5, 0.3, 1.1, 2)),
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"Color addition should behave as expected.");
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CHECK_MESSAGE(
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(blue - dark_red).is_equal_approx(Color(-0.1, 0.1, 0.9, 0)),
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"Color subtraction should behave as expected.");
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CHECK_MESSAGE(
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(blue * 2).is_equal_approx(Color(0.4, 0.4, 2, 2)),
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"Color multiplication with a scalar should behave as expected.");
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CHECK_MESSAGE(
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(blue / 2).is_equal_approx(Color(0.1, 0.1, 0.5, 0.5)),
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"Color division with a scalar should behave as expected.");
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CHECK_MESSAGE(
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(blue * dark_red).is_equal_approx(Color(0.06, 0.02, 0.1)),
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"Color multiplication with another Color should behave as expected.");
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CHECK_MESSAGE(
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(blue / dark_red).is_equal_approx(Color(0.666667, 2, 10)),
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"Color division with another Color should behave as expected.");
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CHECK_MESSAGE(
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(-blue).is_equal_approx(Color(0.8, 0.8, 0, 0)),
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"Color negation should behave as expected (affecting the alpha channel, unlike `invert()`).");
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}
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TEST_CASE("[Color] Reading methods") {
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const Color dark_blue = Color(0, 0, 0.5, 0.4);
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CHECK_MESSAGE(
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Math::is_equal_approx(dark_blue.get_h(), 240.0f / 360.0f),
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"The returned HSV hue should match the expected value.");
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CHECK_MESSAGE(
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Math::is_equal_approx(dark_blue.get_s(), 1.0f),
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"The returned HSV saturation should match the expected value.");
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CHECK_MESSAGE(
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Math::is_equal_approx(dark_blue.get_v(), 0.5f),
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"The returned HSV value should match the expected value.");
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}
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TEST_CASE("[Color] Conversion methods") {
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const Color cyan = Color(0, 1, 1);
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const Color cyan_transparent = Color(0, 1, 1, 0);
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CHECK_MESSAGE(
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cyan.to_html() == "00ffffff",
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"The returned RGB HTML color code should match the expected value.");
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CHECK_MESSAGE(
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cyan_transparent.to_html() == "00ffff00",
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"The returned RGBA HTML color code should match the expected value.");
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CHECK_MESSAGE(
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cyan.to_argb32() == 0xff00ffff,
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"The returned 32-bit RGB number should match the expected value.");
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CHECK_MESSAGE(
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cyan.to_abgr32() == 0xffffff00,
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"The returned 32-bit BGR number should match the expected value.");
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CHECK_MESSAGE(
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cyan.to_rgba32() == 0x00ffffff,
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"The returned 32-bit BGR number should match the expected value.");
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CHECK_MESSAGE(
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cyan.to_argb64() == 0xffff'0000'ffff'ffff,
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"The returned 64-bit RGB number should match the expected value.");
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CHECK_MESSAGE(
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cyan.to_abgr64() == 0xffff'ffff'ffff'0000,
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"The returned 64-bit BGR number should match the expected value.");
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CHECK_MESSAGE(
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cyan.to_rgba64() == 0x0000'ffff'ffff'ffff,
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"The returned 64-bit BGR number should match the expected value.");
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CHECK_MESSAGE(
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String(cyan) == "(0, 1, 1, 1)",
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"The string representation should match the expected value.");
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}
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TEST_CASE("[Color] Named colors") {
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CHECK_MESSAGE(
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Color::named("red").is_equal_approx(Color(1, 0, 0)),
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"The named color \"red\" should match the expected value.");
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// Named colors have their names automatically normalized.
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CHECK_MESSAGE(
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Color::named("white_smoke").is_equal_approx(Color(0.96, 0.96, 0.96)),
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"The named color \"white_smoke\" should match the expected value.");
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CHECK_MESSAGE(
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Color::named("Slate Blue").is_equal_approx(Color(0.42, 0.35, 0.80)),
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"The named color \"Slate Blue\" should match the expected value.");
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ERR_PRINT_OFF;
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CHECK_MESSAGE(
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Color::named("doesn't exist").is_equal_approx(Color()),
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"The invalid named color \"doesn't exist\" should result in a Color with the default values.");
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ERR_PRINT_ON;
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}
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TEST_CASE("[Color] Validation methods") {
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CHECK_MESSAGE(
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Color::html_is_valid("#4080ff"),
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"Valid HTML color (with leading #) should be considered valid.");
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CHECK_MESSAGE(
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Color::html_is_valid("4080ff"),
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"Valid HTML color (without leading #) should be considered valid.");
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CHECK_MESSAGE(
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!Color::html_is_valid("12345"),
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"Invalid HTML color should be considered invalid.");
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CHECK_MESSAGE(
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!Color::html_is_valid("#fuf"),
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"Invalid HTML color should be considered invalid.");
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}
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TEST_CASE("[Color] Manipulation methods") {
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const Color blue = Color(0, 0, 1, 0.4);
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CHECK_MESSAGE(
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blue.inverted().is_equal_approx(Color(1, 1, 0, 0.4)),
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"Inverted color should have its red, green and blue components inverted.");
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const Color purple = Color(0.5, 0.2, 0.5, 0.25);
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CHECK_MESSAGE(
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purple.lightened(0.2).is_equal_approx(Color(0.6, 0.36, 0.6, 0.25)),
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"Color should be lightened by the expected amount.");
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CHECK_MESSAGE(
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purple.darkened(0.2).is_equal_approx(Color(0.4, 0.16, 0.4, 0.25)),
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"Color should be darkened by the expected amount.");
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const Color red = Color(1, 0, 0, 0.2);
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const Color yellow = Color(1, 1, 0, 0.8);
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CHECK_MESSAGE(
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red.lerp(yellow, 0.5).is_equal_approx(Color(1, 0.5, 0, 0.5)),
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"Red interpolated with yellow should be orange (with interpolated alpha).");
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}
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} // namespace TestColor
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#endif // TEST_COLOR_H
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