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calibre/src/tinycss/tests/color3.py

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#!/usr/bin/env python2
# vim:fileencoding=utf-8
from __future__ import absolute_import, division, print_function, unicode_literals
__license__ = 'GPL v3'
__copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
from tinycss.color3 import parse_color_string, hsl_to_rgb
from tinycss.tests import BaseTest
class TestColor3(BaseTest):
def test_color_parsing(self):
for css_source, expected_result in [
('', None),
(' /* hey */\n', None),
('4', None),
('top', None),
('/**/transparent', (0, 0, 0, 0)),
('transparent', (0, 0, 0, 0)),
(' transparent\n', (0, 0, 0, 0)),
('TransParent', (0, 0, 0, 0)),
('currentColor', 'currentColor'),
('CURRENTcolor', 'currentColor'),
('current_Color', None),
('black', (0, 0, 0, 1)),
('white', (1, 1, 1, 1)),
('fuchsia', (1, 0, 1, 1)),
('cyan', (0, 1, 1, 1)),
('CyAn', (0, 1, 1, 1)),
('darkkhaki', (189 / 255., 183 / 255., 107 / 255., 1)),
('#', None),
('#f', None),
('#ff', None),
('#fff', (1, 1, 1, 1)),
('#ffg', None),
('#ffff', None),
('#fffff', None),
('#ffffff', (1, 1, 1, 1)),
('#fffffg', None),
('#fffffff', None),
('#ffffffff', None),
('#fffffffff', None),
('#cba987', (203 / 255., 169 / 255., 135 / 255., 1)),
('#CbA987', (203 / 255., 169 / 255., 135 / 255., 1)),
('#1122aA', (17 / 255., 34 / 255., 170 / 255., 1)),
('#12a', (17 / 255., 34 / 255., 170 / 255., 1)),
('rgb(203, 169, 135)', (203 / 255., 169 / 255., 135 / 255., 1)),
('RGB(255, 255, 255)', (1, 1, 1, 1)),
('rgB(0, 0, 0)', (0, 0, 0, 1)),
('rgB(0, 51, 255)', (0, .2, 1, 1)),
('rgb(0,51,255)', (0, .2, 1, 1)),
('rgb(0\t, 51 ,255)', (0, .2, 1, 1)),
('rgb(/* R */0, /* G */51, /* B */255)', (0, .2, 1, 1)),
('rgb(-51, 306, 0)', (-.2, 1.2, 0, 1)), # out of 0..1 is allowed
('rgb(42%, 3%, 50%)', (.42, .03, .5, 1)),
('RGB(100%, 100%, 100%)', (1, 1, 1, 1)),
('rgB(0%, 0%, 0%)', (0, 0, 0, 1)),
('rgB(10%, 20%, 30%)', (.1, .2, .3, 1)),
('rgb(10%,20%,30%)', (.1, .2, .3, 1)),
('rgb(10%\t, 20% ,30%)', (.1, .2, .3, 1)),
('rgb(/* R */10%, /* G */20%, /* B */30%)', (.1, .2, .3, 1)),
('rgb(-12%, 110%, 1400%)', (-.12, 1.1, 14, 1)), # out of 0..1 is allowed
('rgb(10%, 50%, 0)', None),
('rgb(255, 50%, 0%)', None),
('rgb(0, 0 0)', None),
('rgb(0, 0, 0deg)', None),
('rgb(0, 0, light)', None),
('rgb()', None),
('rgb(0)', None),
('rgb(0, 0)', None),
('rgb(0, 0, 0, 0)', None),
('rgb(0%)', None),
('rgb(0%, 0%)', None),
('rgb(0%, 0%, 0%, 0%)', None),
('rgb(0%, 0%, 0%, 0)', None),
('rgba(0, 0, 0, 0)', (0, 0, 0, 0)),
('rgba(203, 169, 135, 0.3)', (203 / 255., 169 / 255., 135 / 255., 0.3)),
('RGBA(255, 255, 255, 0)', (1, 1, 1, 0)),
('rgBA(0, 51, 255, 1)', (0, 0.2, 1, 1)),
('rgba(0, 51, 255, 1.1)', (0, 0.2, 1, 1)),
('rgba(0, 51, 255, 37)', (0, 0.2, 1, 1)),
('rgba(0, 51, 255, 0.42)', (0, 0.2, 1, 0.42)),
('rgba(0, 51, 255, 0)', (0, 0.2, 1, 0)),
('rgba(0, 51, 255, -0.1)', (0, 0.2, 1, 0)),
('rgba(0, 51, 255, -139)', (0, 0.2, 1, 0)),
('rgba(42%, 3%, 50%, 0.3)', (.42, .03, .5, 0.3)),
('RGBA(100%, 100%, 100%, 0)', (1, 1, 1, 0)),
('rgBA(0%, 20%, 100%, 1)', (0, 0.2, 1, 1)),
('rgba(0%, 20%, 100%, 1.1)', (0, 0.2, 1, 1)),
('rgba(0%, 20%, 100%, 37)', (0, 0.2, 1, 1)),
('rgba(0%, 20%, 100%, 0.42)', (0, 0.2, 1, 0.42)),
('rgba(0%, 20%, 100%, 0)', (0, 0.2, 1, 0)),
('rgba(0%, 20%, 100%, -0.1)', (0, 0.2, 1, 0)),
('rgba(0%, 20%, 100%, -139)', (0, 0.2, 1, 0)),
('rgba(255, 255, 255, 0%)', None),
('rgba(10%, 50%, 0, 1)', None),
('rgba(255, 50%, 0%, 1)', None),
('rgba(0, 0, 0 0)', None),
('rgba(0, 0, 0, 0deg)', None),
('rgba(0, 0, 0, light)', None),
('rgba()', None),
('rgba(0)', None),
('rgba(0, 0, 0)', None),
('rgba(0, 0, 0, 0, 0)', None),
('rgba(0%)', None),
('rgba(0%, 0%)', None),
('rgba(0%, 0%, 0%)', None),
('rgba(0%, 0%, 0%, 0%)', None),
('rgba(0%, 0%, 0%, 0%, 0%)', None),
('HSL(0, 0%, 0%)', (0, 0, 0, 1)),
('hsL(0, 100%, 50%)', (1, 0, 0, 1)),
('hsl(60, 100%, 37.5%)', (0.75, 0.75, 0, 1)),
('hsl(780, 100%, 37.5%)', (0.75, 0.75, 0, 1)),
('hsl(-300, 100%, 37.5%)', (0.75, 0.75, 0, 1)),
('hsl(300, 50%, 50%)', (0.75, 0.25, 0.75, 1)),
('hsl(10, 50%, 0)', None),
('hsl(50%, 50%, 0%)', None),
('hsl(0, 0% 0%)', None),
('hsl(30deg, 100%, 100%)', None),
('hsl(0, 0%, light)', None),
('hsl()', None),
('hsl(0)', None),
('hsl(0, 0%)', None),
('hsl(0, 0%, 0%, 0%)', None),
('HSLA(-300, 100%, 37.5%, 1)', (0.75, 0.75, 0, 1)),
('hsLA(-300, 100%, 37.5%, 12)', (0.75, 0.75, 0, 1)),
('hsla(-300, 100%, 37.5%, 0.2)', (0.75, 0.75, 0, .2)),
('hsla(-300, 100%, 37.5%, 0)', (0.75, 0.75, 0, 0)),
('hsla(-300, 100%, 37.5%, -3)', (0.75, 0.75, 0, 0)),
('hsla(10, 50%, 0, 1)', None),
('hsla(50%, 50%, 0%, 1)', None),
('hsla(0, 0% 0%, 1)', None),
('hsla(30deg, 100%, 100%, 1)', None),
('hsla(0, 0%, light, 1)', None),
('hsla()', None),
('hsla(0)', None),
('hsla(0, 0%)', None),
('hsla(0, 0%, 0%, 50%)', None),
('hsla(0, 0%, 0%, 1, 0%)', None),
('cmyk(0, 0, 0, 0)', None),
]:
result = parse_color_string(css_source)
if isinstance(result, tuple):
for got, expected in zip(result, expected_result):
# Compensate for floating point errors:
self.assertLess(abs(got - expected), 1e-10)
for i, attr in enumerate(['red', 'green', 'blue', 'alpha']):
self.ae(getattr(result, attr), result[i])
else:
self.ae(result, expected_result)
def test_hsl(self):
for hsl, expected_rgb in [
# http://en.wikipedia.org/wiki/HSL_and_HSV#Examples
((0, 0, 100), (1, 1, 1)),
((127, 0, 100), (1, 1, 1)),
((0, 0, 50), (0.5, 0.5, 0.5)),
((127, 0, 50), (0.5, 0.5, 0.5)),
((0, 0, 0), (0, 0, 0)),
((127, 0, 0), (0, 0, 0)),
((0, 100, 50), (1, 0, 0)),
((60, 100, 37.5), (0.75, 0.75, 0)),
((780, 100, 37.5), (0.75, 0.75, 0)),
((-300, 100, 37.5), (0.75, 0.75, 0)),
((120, 100, 25), (0, 0.5, 0)),
((180, 100, 75), (0.5, 1, 1)),
((240, 100, 75), (0.5, 0.5, 1)),
((300, 50, 50), (0.75, 0.25, 0.75)),
((61.8, 63.8, 39.3), (0.628, 0.643, 0.142)),
((251.1, 83.2, 51.1), (0.255, 0.104, 0.918)),
((134.9, 70.7, 39.6), (0.116, 0.675, 0.255)),
((49.5, 89.3, 49.7), (0.941, 0.785, 0.053)),
((283.7, 77.5, 54.2), (0.704, 0.187, 0.897)),
((14.3, 81.7, 62.4), (0.931, 0.463, 0.316)),
((56.9, 99.1, 76.5), (0.998, 0.974, 0.532)),
((162.4, 77.9, 44.7), (0.099, 0.795, 0.591)),
((248.3, 60.1, 37.3), (0.211, 0.149, 0.597)),
((240.5, 29, 60.7), (0.495, 0.493, 0.721)),
]:
for got, expected in zip(hsl_to_rgb(*hsl), expected_rgb):
# Compensate for floating point errors and Wikipedia’s rounding:
self.assertLess(abs(got - expected), 0.001)
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