Pillow/Tests/test_imagecolor.py
2015-07-03 16:22:56 +10:00

75 lines
3.0 KiB
Python

from helper import unittest, PillowTestCase
from PIL import Image
from PIL import ImageColor
class TestImageColor(PillowTestCase):
def test_sanity(self):
self.assertEqual((255, 0, 0), ImageColor.getrgb("#f00"))
self.assertEqual((255, 0, 0), ImageColor.getrgb("#ff0000"))
self.assertEqual((255, 0, 0), ImageColor.getrgb("rgb(255,0,0)"))
self.assertEqual((255, 0, 0), ImageColor.getrgb("rgb(255, 0, 0)"))
self.assertEqual((255, 0, 0), ImageColor.getrgb("rgb(100%,0%,0%)"))
self.assertEqual((255, 0, 0), ImageColor.getrgb("hsl(0, 100%, 50%)"))
self.assertEqual((255, 0, 0, 0), ImageColor.getrgb("rgba(255,0,0,0)"))
self.assertEqual(
(255, 0, 0, 0), ImageColor.getrgb("rgba(255, 0, 0, 0)"))
self.assertEqual((255, 0, 0), ImageColor.getrgb("red"))
self.assertRaises(ValueError,
lambda: ImageColor.getrgb("invalid color"))
# look for rounding errors (based on code by Tim Hatch)
def test_rounding_errors(self):
for color in list(ImageColor.colormap.keys()):
expected = Image.new(
"RGB", (1, 1), color).convert("L").getpixel((0, 0))
actual = Image.new("L", (1, 1), color).getpixel((0, 0))
self.assertEqual(expected, actual)
self.assertEqual((0, 0, 0), ImageColor.getcolor("black", "RGB"))
self.assertEqual((255, 255, 255), ImageColor.getcolor("white", "RGB"))
self.assertEqual(
(0, 255, 115), ImageColor.getcolor("rgba(0, 255, 115, 33)", "RGB"))
Image.new("RGB", (1, 1), "white")
self.assertEqual((0, 0, 0, 255), ImageColor.getcolor("black", "RGBA"))
self.assertEqual(
(255, 255, 255, 255), ImageColor.getcolor("white", "RGBA"))
self.assertEqual(
(0, 255, 115, 33),
ImageColor.getcolor("rgba(0, 255, 115, 33)", "RGBA"))
Image.new("RGBA", (1, 1), "white")
self.assertEqual(0, ImageColor.getcolor("black", "L"))
self.assertEqual(255, ImageColor.getcolor("white", "L"))
self.assertEqual(162,
ImageColor.getcolor("rgba(0, 255, 115, 33)", "L"))
Image.new("L", (1, 1), "white")
self.assertEqual(0, ImageColor.getcolor("black", "1"))
self.assertEqual(255, ImageColor.getcolor("white", "1"))
# The following test is wrong, but is current behavior
# The correct result should be 255 due to the mode 1
self.assertEqual(
162, ImageColor.getcolor("rgba(0, 255, 115, 33)", "1"))
# Correct behavior
# self.assertEqual(
# 255, ImageColor.getcolor("rgba(0, 255, 115, 33)", "1"))
Image.new("1", (1, 1), "white")
self.assertEqual((0, 255), ImageColor.getcolor("black", "LA"))
self.assertEqual((255, 255), ImageColor.getcolor("white", "LA"))
self.assertEqual(
(162, 33), ImageColor.getcolor("rgba(0, 255, 115, 33)", "LA"))
Image.new("LA", (1, 1), "white")
if __name__ == '__main__':
unittest.main()
# End of file