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#!/usr/bin/env python3
# *****************************************************************************
# Copyright (C) 2019-2021 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
# This file is part of the thcolor project, which is MIT-licensed.
# *****************************************************************************
""" Unit tests for the thcolor color decoding and management module. """
import pytest
from thcolor.angles import DegreesAngle
from thcolor.colors import SRGBColor, HSLColor, HWBColor
class TestSRGBColors:
""" Test the sRGB color conversions. """
@pytest.mark.parametrize('args', (
(-.5, 0, 0),
(1.2, 0, 0),
(0, -.5, 0),
(0, 1.2, 0),
(0, 0, -.5),
(0, 0, 1.2),
(0, 0, 0, -.5),
(0, 0, 0, 1.2),
(None, 0, 0),
('1.2', 0, 0),
))
def test_invalid_values(self, args):
""" Try to instanciate the class using invalid values. """
with pytest.raises(ValueError):
SRGBColor(*args)
@pytest.mark.parametrize('args,bytes_', (
((0, 0, 0), (0, 0, 0)),
((.0019, .002, .005), (0, 1, 1)),
((.1, .2, .3), (26, 51, 77)),
))
def test_to_bytes(self, args, bytes_):
""" Try converting to bytes and test the rounding up. """
assert SRGBColor(*args).asbytes() == bytes_
@pytest.mark.parametrize('args,bytes_', (
((0, .003921, .003925), (0, 1, 1)),
))
def test_from_bytes(self, args, bytes_):
""" Try converting from bytes and test the rounding up. """
assert SRGBColor(*args) == SRGBColor.frombytes(*bytes_)
@pytest.mark.parametrize('name,bytes_', (
# https://stackoverflow.com/q/8318911
('chucknorris', (192, 0, 0)),
('ninjaturtle', (0, 160, 0)),
('crap', (192, 160, 0)),
('grass', (0, 160, 0)),
# https://bugzilla.mozilla.org/show_bug.cgi?id=121738
('navyblue', (160, 176, 224)),
# http://web.archive.org/web/20050403162633/http://www.jgc.org:80/tsc/index.htm
# See the "Flex Hex" technique.
('FxFxFx', (240, 240, 240)),
('#FxFxFx', (240, 240, 240)),
('FqFeFm', (240, 254, 240)),
# http://scrappy-do.blogspot.com/2004/08/little-rant-about-microsoft-internet.html
('zqbttv', (0, 176, 0)),
('6db6ec49efd278cd0bc92d1e5e072d680', (110, 205, 224)),
))
def test_netscape_decoding(self, name, bytes_):
""" Try decoding colors using Netscape color parsing. """
assert SRGBColor.fromnetscapecolorname(name).asbytes() == bytes_
@pytest.mark.parametrize('args,expected', (
((0, 0, 255), ('#0000FF',)),
((1, 22, 242, .5), (
'#0116F2',
'rgba(1, 22, 242, 50%)',
)),
))
def test_css(self, args, expected):
assert tuple(SRGBColor.frombytes(*args).css()) == expected
@pytest.mark.parametrize('args,hsl', (
((0, 0, 0), (DegreesAngle(0), 0, 0)),
((1, 2, 3), (DegreesAngle(210), .5, .01)),
((50, 100, 150), (DegreesAngle(210), .5, .39)),
((255, 255, 255), (DegreesAngle(0), 0, 1)),
((82, 122, 122), (DegreesAngle(180), .2, .4)),
))
def test_hsl(self, args, hsl):
hue, sat, lgt, *_ = SRGBColor.frombytes(*args).ashsl()
assert (hue, round(sat, 2), round(lgt, 2)) == hsl
@pytest.mark.parametrize('args,hsv', (
# TODO
))
def test_hsv(self, args, hsv):
hue, sat, val, *_ = SRGBColor.frombytes(*args).ashsv()
assert (hue, round(sat, 2), round(val, 2)) == hsv
@pytest.mark.parametrize('args,hwb', (
((82, 122, 122), (DegreesAngle(180), .32, .52)),
((13, 157, 230), (DegreesAngle(200), .05, .1)),
((212, 212, 212), (DegreesAngle(0), .83, .17)),
))
def test_hwb(self, args, hwb):
hue, wht, blk, *_ = SRGBColor.frombytes(*args).ashwb()
hue = DegreesAngle(int(hue.asdegrees().degrees))
assert (hue, round(wht, 2), round(blk, 2)) == hwb
@pytest.mark.parametrize('args,yiq', (
# TODO
))
def test_yiq(self, args, yiq):
y, i, q, *_ = SRGBColor.frombytes(*args).asyiq()
assert (round(y, 2), round(i, 2), round(q, 2)) == yiq
@pytest.mark.parametrize('args,yuv', (
# TODO
))
def test_yuv(self, args, yuv):
y, u, v, *_ = SRGBColor.frombytes(*args).asyuv()
assert (round(y, 2), round(u, 2), round(v, 2)) == yuv
class TestHSLColors:
""" Test the HSL color conversions. """
@pytest.mark.parametrize('args,rgb', (
((DegreesAngle(195), 1, .5), (0, 191, 255)),
((DegreesAngle(240), 1, .25), (0, 0, 128)),
((DegreesAngle(0), 1, .5), (255, 0, 0)),
((DegreesAngle(0), 0, 0), (0, 0, 0)),
((DegreesAngle(0), 0, 1), (255, 255, 255)),
((DegreesAngle(0), 0, .01), (3, 3, 3)),
((DegreesAngle(145), .30, .60), (122, 184, 148)),
))
def test_srgb(self, args, rgb):
r, g, b = HSLColor(*args).assrgb().asbytes()
assert (r, g, b) == rgb
@pytest.mark.parametrize('args,expected', (
((DegreesAngle(0), 1, .4), (
'#CC0000',
'hsl(0deg, 100%, 40%)',
)),
((DegreesAngle(0), .5, 1, .2), (
'#FFFFFF',
'rgba(255, 255, 255, 20%)',
'hsla(0deg, 50%, 100%, 20%)',
)),
))
def test_css(self, args, expected):
assert tuple(HSLColor(*args).css()) == expected
class TestHWBColors:
""" Test the HWB color conversions. """
@pytest.mark.parametrize('args,rgb', (
((DegreesAngle(145), .48, .28), (122, 184, 148)),
))
def test_srgb(self, args, rgb):
r, g, b = HWBColor(*args).assrgb().asbytes()
assert (r, g, b) == rgb
@pytest.mark.parametrize('args,expected', (
((DegreesAngle(127), 0, .5), (
'#00800F',
'hwb(127deg, 0%, 50%)',
)),
))
def test_css(self, args, expected):
assert tuple(HWBColor(*args).css()) == expected
# End of file.
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