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d244fbb299
iter(dict) is equivalent to iter(dict.keys()), so simply act on the dict instead of adding the extra call. Inspired by Lennart Regebro's PyCon 2017 presentation "Prehistoric Patterns in Python". Available at: https://www.youtube.com/watch?v=V5-JH23Vk0I
166 lines
7.5 KiB
Python
166 lines
7.5 KiB
Python
from helper import unittest, PillowTestCase
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from PIL import Image
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from PIL import ImageColor
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class TestImageColor(PillowTestCase):
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def test_hash(self):
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# short 3 components
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self.assertEqual((255, 0, 0), ImageColor.getrgb("#f00"))
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self.assertEqual((0, 255, 0), ImageColor.getrgb("#0f0"))
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self.assertEqual((0, 0, 255), ImageColor.getrgb("#00f"))
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# short 4 components
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self.assertEqual((255, 0, 0, 0), ImageColor.getrgb("#f000"))
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self.assertEqual((0, 255, 0, 0), ImageColor.getrgb("#0f00"))
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self.assertEqual((0, 0, 255, 0), ImageColor.getrgb("#00f0"))
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self.assertEqual((0, 0, 0, 255), ImageColor.getrgb("#000f"))
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# long 3 components
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self.assertEqual((222, 0, 0), ImageColor.getrgb("#de0000"))
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self.assertEqual((0, 222, 0), ImageColor.getrgb("#00de00"))
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self.assertEqual((0, 0, 222), ImageColor.getrgb("#0000de"))
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# long 4 components
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self.assertEqual((222, 0, 0, 0), ImageColor.getrgb("#de000000"))
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self.assertEqual((0, 222, 0, 0), ImageColor.getrgb("#00de0000"))
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self.assertEqual((0, 0, 222, 0), ImageColor.getrgb("#0000de00"))
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self.assertEqual((0, 0, 0, 222), ImageColor.getrgb("#000000de"))
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# case insensitivity
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self.assertEqual(ImageColor.getrgb("#DEF"), ImageColor.getrgb("#def"))
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self.assertEqual(ImageColor.getrgb("#CDEF"), ImageColor.getrgb("#cdef"))
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self.assertEqual(ImageColor.getrgb("#DEFDEF"),
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ImageColor.getrgb("#defdef"))
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self.assertEqual(ImageColor.getrgb("#CDEFCDEF"),
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ImageColor.getrgb("#cdefcdef"))
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# not a number
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self.assertRaises(ValueError, ImageColor.getrgb, "#fo0")
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self.assertRaises(ValueError, ImageColor.getrgb, "#fo00")
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self.assertRaises(ValueError, ImageColor.getrgb, "#fo0000")
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self.assertRaises(ValueError, ImageColor.getrgb, "#fo000000")
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# wrong number of components
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self.assertRaises(ValueError, ImageColor.getrgb, "#f0000")
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self.assertRaises(ValueError, ImageColor.getrgb, "#f000000")
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self.assertRaises(ValueError, ImageColor.getrgb, "#f00000000")
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self.assertRaises(ValueError, ImageColor.getrgb, "#f000000000")
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self.assertRaises(ValueError, ImageColor.getrgb, "#f00000 ")
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def test_colormap(self):
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self.assertEqual((0, 0, 0), ImageColor.getrgb("black"))
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self.assertEqual((255, 255, 255), ImageColor.getrgb("white"))
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self.assertEqual((255, 255, 255), ImageColor.getrgb("WHITE"))
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self.assertRaises(ValueError, ImageColor.getrgb, "black ")
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def test_functions(self):
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# rgb numbers
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self.assertEqual((255, 0, 0), ImageColor.getrgb("rgb(255,0,0)"))
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self.assertEqual((0, 255, 0), ImageColor.getrgb("rgb(0,255,0)"))
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self.assertEqual((0, 0, 255), ImageColor.getrgb("rgb(0,0,255)"))
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# percents
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self.assertEqual((255, 0, 0), ImageColor.getrgb("rgb(100%,0%,0%)"))
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self.assertEqual((0, 255, 0), ImageColor.getrgb("rgb(0%,100%,0%)"))
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self.assertEqual((0, 0, 255), ImageColor.getrgb("rgb(0%,0%,100%)"))
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# rgba numbers
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self.assertEqual((255, 0, 0, 0), ImageColor.getrgb("rgba(255,0,0,0)"))
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self.assertEqual((0, 255, 0, 0), ImageColor.getrgb("rgba(0,255,0,0)"))
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self.assertEqual((0, 0, 255, 0), ImageColor.getrgb("rgba(0,0,255,0)"))
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self.assertEqual((0, 0, 0, 255), ImageColor.getrgb("rgba(0,0,0,255)"))
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self.assertEqual((255, 0, 0), ImageColor.getrgb("hsl(0,100%,50%)"))
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self.assertEqual((255, 0, 0), ImageColor.getrgb("hsl(360,100%,50%)"))
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self.assertEqual((0, 255, 255), ImageColor.getrgb("hsl(180,100%,50%)"))
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# case insensitivity
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self.assertEqual(ImageColor.getrgb("RGB(255,0,0)"),
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ImageColor.getrgb("rgb(255,0,0)"))
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self.assertEqual(ImageColor.getrgb("RGB(100%,0%,0%)"),
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ImageColor.getrgb("rgb(100%,0%,0%)"))
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self.assertEqual(ImageColor.getrgb("RGBA(255,0,0,0)"),
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ImageColor.getrgb("rgba(255,0,0,0)"))
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self.assertEqual(ImageColor.getrgb("HSL(0,100%,50%)"),
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ImageColor.getrgb("hsl(0,100%,50%)"))
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# space agnosticism
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self.assertEqual((255, 0, 0),
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ImageColor.getrgb("rgb( 255 , 0 , 0 )"))
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self.assertEqual((255, 0, 0),
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ImageColor.getrgb("rgb( 100% , 0% , 0% )"))
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self.assertEqual((255, 0, 0, 0),
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ImageColor.getrgb("rgba( 255 , 0 , 0 , 0 )"))
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self.assertEqual((255, 0, 0),
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ImageColor.getrgb("hsl( 0 , 100% , 50% )"))
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# wrong number of components
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self.assertRaises(ValueError, ImageColor.getrgb, "rgb(255,0)")
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self.assertRaises(ValueError, ImageColor.getrgb, "rgb(255,0,0,0)")
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self.assertRaises(ValueError, ImageColor.getrgb, "rgb(100%,0%)")
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self.assertRaises(ValueError, ImageColor.getrgb, "rgb(100%,0%,0)")
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self.assertRaises(ValueError, ImageColor.getrgb, "rgb(100%,0%,0 %)")
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self.assertRaises(ValueError, ImageColor.getrgb, "rgb(100%,0%,0%,0%)")
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self.assertRaises(ValueError, ImageColor.getrgb, "rgba(255,0,0)")
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self.assertRaises(ValueError, ImageColor.getrgb, "rgba(255,0,0,0,0)")
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self.assertRaises(ValueError, ImageColor.getrgb, "hsl(0,100%)")
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self.assertRaises(ValueError, ImageColor.getrgb, "hsl(0,100%,0%,0%)")
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self.assertRaises(ValueError, ImageColor.getrgb, "hsl(0%,100%,50%)")
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self.assertRaises(ValueError, ImageColor.getrgb, "hsl(0,100,50%)")
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self.assertRaises(ValueError, ImageColor.getrgb, "hsl(0,100%,50)")
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# look for rounding errors (based on code by Tim Hatch)
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def test_rounding_errors(self):
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for color in ImageColor.colormap:
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expected = Image.new(
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"RGB", (1, 1), color).convert("L").getpixel((0, 0))
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actual = ImageColor.getcolor(color, 'L')
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self.assertEqual(expected, actual)
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self.assertEqual(
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(0, 255, 115), ImageColor.getcolor("rgba(0, 255, 115, 33)", "RGB"))
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Image.new("RGB", (1, 1), "white")
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self.assertEqual((0, 0, 0, 255), ImageColor.getcolor("black", "RGBA"))
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self.assertEqual(
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(255, 255, 255, 255), ImageColor.getcolor("white", "RGBA"))
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self.assertEqual(
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(0, 255, 115, 33),
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ImageColor.getcolor("rgba(0, 255, 115, 33)", "RGBA"))
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Image.new("RGBA", (1, 1), "white")
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self.assertEqual(0, ImageColor.getcolor("black", "L"))
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self.assertEqual(255, ImageColor.getcolor("white", "L"))
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self.assertEqual(162,
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ImageColor.getcolor("rgba(0, 255, 115, 33)", "L"))
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Image.new("L", (1, 1), "white")
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self.assertEqual(0, ImageColor.getcolor("black", "1"))
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self.assertEqual(255, ImageColor.getcolor("white", "1"))
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# The following test is wrong, but is current behavior
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# The correct result should be 255 due to the mode 1
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self.assertEqual(
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162, ImageColor.getcolor("rgba(0, 255, 115, 33)", "1"))
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# Correct behavior
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# self.assertEqual(
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# 255, ImageColor.getcolor("rgba(0, 255, 115, 33)", "1"))
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Image.new("1", (1, 1), "white")
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self.assertEqual((0, 255), ImageColor.getcolor("black", "LA"))
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self.assertEqual((255, 255), ImageColor.getcolor("white", "LA"))
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self.assertEqual(
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(162, 33), ImageColor.getcolor("rgba(0, 255, 115, 33)", "LA"))
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Image.new("LA", (1, 1), "white")
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if __name__ == '__main__':
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unittest.main()
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