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import unittest
import warnings
from gmplot.color import _is_valid_hex_color, _get_hex_color
class ColorTests(unittest.TestCase):
def setUp(self):
self.longMessage = True
def test_is_valid_hex_color(self):
# Test valid hex colors:
VALID_HEX_COLORS = [
'#000000',
'#FFCC00',
'#ae44BB'
]
for color in VALID_HEX_COLORS:
self.assertEqual(_is_valid_hex_color(color), True, "'%s' should be a valid hex color" % color)
# Test invalid hex colors:
INVALID_HEX_COLORS = [
'#FC0',
'#GFCC00',
'#0000000',
'11ee22',
'red',
[]
]
for color in INVALID_HEX_COLORS:
self.assertEqual(_is_valid_hex_color(color), False, "'%s' should be an invalid hex color" % color)
def test_get_hex_color_code(self):
# Test valid aliases of red:
for color in ['r', 'red', '#FF0000']:
self.assertEqual(_get_hex_color(color), '#FF0000', "'%s' should be a valid alias for 'red'" % color)
# Test invalid colours:
INVALID_COLORS = [
'colorthatdoesntexist',
'#abc'
]
for color in INVALID_COLORS:
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
self.assertEqual(_get_hex_color(color), '#000000', "'%s' should be an invalid color" % color)
self.assertEqual(len(w), 1, "'%s' should raise a single warning" % color)
self.assertTrue(issubclass(w[-1].category, UserWarning), "'%s' should raise a 'UserWarning'" % color)
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