def test_bz(self):
"""Test `bz`."""
c = Color('color(--jzazbz 1 0.2 -0.3 / 1)')
self.assertEqual(c.bz, -0.3)
c.bz = 0.1
self.assertEqual(c.bz, 0.1)
def test_cp(self):
"""Test `cp`."""
c = Color('color(--ictcp 1 0.2 -0.3 / 1)')
self.assertEqual(c.cp, -0.3)
c.cp = 0.1
self.assertEqual(c.cp, 0.1)
def test_i(self):
"""Test `i`."""
c = Color('color(--ictcp 1 0.2 -0.3 / 1)')
self.assertEqual(c.i, 1)
c.i = 0.2
self.assertEqual(c.i, 0.2)
def test_force_alpha(self):
"""Test force alpha."""
color = "color(--lchuv 20% 10 130 / 1)"
lchuv = Color(color)
self.assertEqual("color(--lchuv 20 10 130 / 1)",
lchuv.to_string(alpha=True))
def test_delta_e_alternate_calls(self):
"""Test alternative delta e calls."""
self.assertCompare(
Color('red').delta_e('blue', method='2000'),
Color('red').delta_e_2000('blue')
)
def test_hue(self):
"""Test `hue`."""
c = Color('color(--lchuv 90% 50 120 / 1)')
self.assertEqual(c.hue, 120)
c.hue = 110
self.assertEqual(c.hue, 110)
def test_from_luv(self):
"""Test null from Luv conversion."""
c1 = Color('color(--luv 90% 0 0)')
c2 = c1.convert('lchuv')
self.assertColorEqual(c2, Color('color(--lchuv 90% 0 0)'))
self.assertTrue(c2.is_nan('hue'))
def test_saturation(self):
"""Test `saturation`."""
c = Color('color(--okhsl 120 50% 90% / 1)')
self.assertEqual(c.saturation, 0.5)
c.saturation = 0.6
self.assertEqual(c.saturation, 0.6)
def test_lightness(self):
"""Test `lightness`."""
c = Color('color(--okhsl 120 50% 90% / 1)')
self.assertEqual(c.lightness, 0.9)
c.lightness = 0.8
self.assertEqual(c.lightness, 0.8)
def test_red(self):
"""Test `red`."""
c = Color('color(rec2020 0.1 0.2 0.3 / 1)')
self.assertEqual(c.red, 0.1)
c.red = 0.2
self.assertEqual(c.red, 0.2)
def test_green(self):
"""Test `green`."""
c = Color('color(rec2020 0.1 0.2 0.3 / 1)')
self.assertEqual(c.green, 0.2)
c.green = 0.1
self.assertEqual(c.green, 0.1)
def test_blue(self):
"""Test `blue`."""
c = Color('color(rec2020 0.1 0.2 0.3 / 1)')
self.assertEqual(c.blue, 0.3)
c.blue = 0.1
self.assertEqual(c.blue, 0.1)
def test_from_lab(self):
"""Test null from Lab conversion."""
c1 = Color('lab(90% 0 0)')
c2 = c1.convert('lch')
self.assertColorEqual(c2, Color('lch(90% 0 0)'))
self.assertTrue(c2.is_nan('hue'))
def test_jz(self):
"""Test `lightness`."""
c = Color('color(--jzazbz 1 0.2 -0.3 / 1)')
self.assertEqual(c.jz, 1)
c.jz = 0.2
self.assertEqual(c.jz, 0.2)
def test_z(self):
"""Test `z`."""
c = Color('color(xyz-d50 0.1 0.2 0.3 / 1)')
self.assertEqual(c.z, 0.3)
c.z = 0.1
self.assertEqual(c.z, 0.1)
def test_alpha(self):
"""Test `alpha`."""
c = Color('color(--okhsl 120 50% 90% / 1)')
self.assertEqual(c.alpha, 1)
c.alpha = 0.5
self.assertEqual(c.alpha, 0.5)
def test_chroma(self):
"""Test `chroma`."""
c = Color('color(--lchuv 90% 50 120 / 1)')
self.assertEqual(c.chroma, 50)
c.chroma = 40
self.assertEqual(c.chroma, 40)
def test_hue(self):
"""Test `hue`."""
c = Color('color(--okhsl 120 50% 90% / 1)')
self.assertEqual(c.hue, 120)
c.hue = 110
self.assertEqual(c.hue, 110)
def test_alpha(self):
"""Test `alpha`."""
c = Color('color(--lchuv 90% 50 120 / 1)')
self.assertEqual(c.alpha, 1)
c.alpha = 0.5
self.assertEqual(c.alpha, 0.5)
def assert_round_trip(self, color, space):
"""Cycle through all the other colors and convert to them and back and check the results."""
c1 = Color(color).convert(space)
for space in SPACES:
# Print the color space to easily identify which color space broke.
c2 = c1.convert(space)
c2.convert(c1.space(), in_place=True)
# Catch cases where we are really close to 360 which should wrap to 0
for c in (c1, c2):
if isinstance(c._space, Cylindrical):
if util.round_half_up(util.no_nan(c.hue),
c.PRECISION) == 360:
c.hue = 0
# Run rounded string back through parsing in case we hit something like a hue that needs normalization.
str1 = Color(c1.to_string(color=True,
fit=False)).to_string(color=True,
fit=False)
str2 = Color(c2.to_string(color=True,
fit=False)).to_string(color=True,
fit=False)
# Print failing results for debug purposes
if str1 != str2:
print('----- Convert: {} <=> {} -----'.format(
c1.space(), space))
print('Original: ', color.to_string(color=True, fit=False))
print(c1.space() + ': ', str1, c1.coords())
print(space + ': ', str2, c2.coords())
assert str1 == str2
def test_no_alpha(self):
"""Test no alpha."""
color = "color(--lchuv 20% 10 130 / 0.2)"
lchuv = Color(color)
self.assertEqual("color(--lchuv 20 10 130)",
lchuv.to_string(alpha=False))
def get_colors(result):
"""Get color from results."""
from coloraide import Color
from coloraide.interpolate import Interpolator
colors = []
if isinstance(result, Color):
colors.append(ColorTuple(result.to_string(fit=False), result.clone()))
elif isinstance(result, Interpolator):
colors = ColorInterpolate(result.steps(steps=5, max_delta_e=3))
elif isinstance(result, ColorRow):
colors = result
elif isinstance(result, str):
try:
colors.append(ColorTuple(result, Color(result)))
except Exception:
pass
elif isinstance(result, Sequence):
for x in result:
if isinstance(x, Color):
colors.append(ColorTuple(x.to_string(fit=False), x.clone()))
elif isinstance(x, str):
try:
colors.append(ColorTuple(x, Color(x)))
except Exception:
pass
return colors
def test_lightness(self):
"""Test `lightness`."""
c = Color('color(--lchuv 90% 50 120 / 1)')
self.assertEqual(c.lightness, 90)
c.lightness = 80
self.assertEqual(c.lightness, 80)
def test_alpha(self):
"""Test `alpha`."""
c = Color('color(xyz-d50 0.1 0.2 0.3 / 1)')
self.assertEqual(c.alpha, 1)
c.alpha = 0.5
self.assertEqual(c.alpha, 0.5)
def test_delta_e_alternate_calls_with_params(self):
"""Test alternative delta e calls with parameters."""
self.assertCompare(
Color('red').delta_e('blue', method='hyab', space="din99o"),
Color('red').delta_e_hyab('blue', space="din99o")
)
def test_x(self):
"""Test `x`."""
c = Color('color(xyz-d50 0.1 0.2 0.3 / 1)')
self.assertEqual(c.x, 0.1)
c.x = 0.2
self.assertEqual(c.x, 0.2)
def test_alpha(self):
"""Test `alpha`."""
c = Color('color(--ictcp 1 0.2 -0.3 / 1)')
self.assertEqual(c.alpha, 1)
c.alpha = 0.5
self.assertEqual(c.alpha, 0.5)
def test_y(self):
"""Test `y`."""
c = Color('color(xyz-d50 0.1 0.2 0.3 / 1)')
self.assertEqual(c.y, 0.2)
c.y = 0.1
self.assertEqual(c.y, 0.1)
def test_ct(self):
"""Test `ct`."""
c = Color('color(--ictcp 1 0.2 -0.3 / 1)')
self.assertEqual(c.ct, 0.2)
c.ct = 0.1
self.assertEqual(c.ct, 0.1)
def test_az(self):
"""Test `az`."""
c = Color('color(--jzazbz 1 0.2 -0.3 / 1)')
self.assertEqual(c.az, 0.2)
c.az = 0.1
self.assertEqual(c.az, 0.1)
