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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/tests/ColorTest.cpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/tests/ColorTest.cpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/tests/ColorTest.cpp b/Build/source/texk/dvisvgm/dvisvgm-src/tests/ColorTest.cpp new file mode 100644 index 00000000000..07946422bab --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-src/tests/ColorTest.cpp @@ -0,0 +1,158 @@ +/************************************************************************* +** ColorTest.cpp ** +** ** +** This file is part of dvisvgm -- a fast DVI to SVG converter ** +** Copyright (C) 2005-2017 Martin Gieseking <martin.gieseking@uos.de> ** +** ** +** This program is free software; you can redistribute it and/or ** +** modify it under the terms of the GNU General Public License as ** +** published by the Free Software Foundation; either version 3 of ** +** the License, or (at your option) any later version. ** +** ** +** This program is distributed in the hope that it will be useful, but ** +** WITHOUT ANY WARRANTY; without even the implied warranty of ** +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** +** GNU General Public License for more details. ** +** ** +** You should have received a copy of the GNU General Public License ** +** along with this program; if not, see <http://www.gnu.org/licenses/>. ** +*************************************************************************/ + +#include <gtest/gtest.h> +#include "Color.hpp" + +using namespace std; + +TEST(ColorTest, construct) { + Color c1(uint8_t(1), uint8_t(2), uint8_t(3)); + EXPECT_EQ(c1.rgbString(), "#010203"); + Color c2(1.0/255, 2.0/255, 3.0/255); + EXPECT_EQ(c2.rgbString(), "#010203"); + Color c3 = "Blue"; + EXPECT_EQ(c3.rgbString(), "#0000ff"); + Color c4 = "blue"; + EXPECT_EQ(c4.rgbString(), "#0000ff"); +} + + +TEST(ColorTest, gray) { + Color c; + c.setGray(10.0/255); + EXPECT_EQ(c.rgbString(), "#0a0a0a"); + c.setGray(uint8_t(15)); + EXPECT_EQ(c.rgbString(), "#0f0f0f"); +} + + +TEST(ColorTest, hsb) { + Color c; + c.setHSB(0.0, 1.0, 1.0); + EXPECT_EQ(c.rgbString(), "#ff0000"); + c.setHSB(120.0/360, 1.0, 1.0); + EXPECT_EQ(c.rgbString(), "#00ff00"); + c.setHSB(20.0/360, 0.75, 0.8); + EXPECT_EQ(c.rgbString(), "#cc6633"); +} + + +TEST(ColorTest, cmyk) { + Color c; + c.setCMYK(0.5, 0.4, 0.6, 0.2); + EXPECT_EQ(c.rgbString(), "#667a52"); +} + + +TEST(ColorTest, name) { + Color c; + EXPECT_TRUE(c.setPSName("Magenta")); + EXPECT_EQ(c.rgbString(), "#ff00ff"); + EXPECT_FALSE(c.setPSName("mulberry")); + EXPECT_TRUE(c.setPSName("mulberry", false)); + EXPECT_EQ(c.rgbString(), "#a314f9"); + + EXPECT_FALSE(c.setPSName("#Magenta")); + EXPECT_FALSE(c.setPSName("#bcdefg")); + EXPECT_TRUE(c.setPSName("#abcdef")); + EXPECT_EQ(c.rgbString(), "#abcdef"); + EXPECT_TRUE(c.setPSName("#89A")); + EXPECT_EQ(c.rgbString(), "#00089a"); +} + + +TEST(ColorTest, getXYZ) { + Color c; + double x, y, z; + c.setRGB(1.0, 0, 0); + c.getXYZ(x, y, z); + EXPECT_NEAR(x, 0.412456, 0.000001); + EXPECT_NEAR(y, 0.212673, 0.000001); + EXPECT_NEAR(z, 0.019334, 0.000001); + + c.setRGB(0, 1.0, 0); + c.getXYZ(x, y, z); + EXPECT_NEAR(x, 0.357576, 0.000001); + EXPECT_NEAR(y, 0.715152, 0.000001); + EXPECT_NEAR(z, 0.119192, 0.000001); + + c.setRGB(0, 0, 1.0); + c.getXYZ(x, y, z); + EXPECT_NEAR(x, 0.180437, 0.000001); + EXPECT_NEAR(y, 0.072175, 0.000001); + EXPECT_NEAR(z, 0.950304, 0.000001); + + valarray<double> rgb(3), xyz(3); + rgb[0] = 0.2; + rgb[1] = 0.75; + rgb[2] = 0.9; + Color::RGB2XYZ(rgb, xyz); + EXPECT_NEAR(xyz[0], 0.342574, 0.000001); + EXPECT_NEAR(xyz[1], 0.437554, 0.000001); + EXPECT_NEAR(xyz[2], 0.811202, 0.000001); +} + + +TEST(ColorTest, getLab) { + Color c; + double l, a, b; + c.setRGB(1.0, 0, 0); + c.getLab(l, a, b); + EXPECT_NEAR(l, 53.2408, 0.0001); + EXPECT_NEAR(a, 80.0925, 0.0001); + EXPECT_NEAR(b, 67.2032, 0.0001); + + c.setRGB(0, 1.0, 0); + c.getLab(l, a, b); + EXPECT_NEAR(l, 87.7347, 0.0001); + EXPECT_NEAR(a, -86.1827, 0.0001); + EXPECT_NEAR(b, 83.1793, 0.0001); + + c.setRGB(0, 0, 1.0); + c.getLab(l, a, b); + EXPECT_NEAR(l, 32.2970, 0.0001); + EXPECT_NEAR(a, 79.1875, 0.0001); + EXPECT_NEAR(b, -107.8602, 0.0001); + + valarray<double> rgb(3), lab(3); + rgb[0] = 0.2; + rgb[1] = 0.75; + rgb[2] = 0.9; + Color::RGB2Lab(rgb, lab); + EXPECT_NEAR(lab[0], 72.0647, 0.0001); + EXPECT_NEAR(lab[1], -23.7597, 0.0001); + EXPECT_NEAR(lab[2], -29.4733, 0.0001); +} + + +TEST(ColorTest, svgColorString) { + EXPECT_EQ(Color(uint32_t(0x000000)).svgColorString(false), "black"); + EXPECT_EQ(Color(uint32_t(0xffffff)).svgColorString(false), "white"); + EXPECT_EQ(Color(uint32_t(0xff0000)).svgColorString(false), "red"); + EXPECT_EQ(Color(uint32_t(0x9400d3)).svgColorString(false), "darkviolet"); + EXPECT_EQ(Color(uint32_t(0x000001)).svgColorString(false), "#000001"); + + EXPECT_EQ(Color(uint32_t(0x000000)).svgColorString(true), "#000000"); + EXPECT_EQ(Color(uint32_t(0xffffff)).svgColorString(true), "#ffffff"); + EXPECT_EQ(Color(uint32_t(0xff0000)).svgColorString(true), "#ff0000"); + EXPECT_EQ(Color(uint32_t(0x9400d3)).svgColorString(true), "#9400d3"); + EXPECT_EQ(Color(uint32_t(0x000001)).svgColorString(true), "#000001"); +}
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