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75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
from helper import unittest, PillowTestCase, lena
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class TestImage(PillowTestCase):
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def test_getcolors(self):
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def getcolors(mode, limit=None):
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im = lena(mode)
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if limit:
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colors = im.getcolors(limit)
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else:
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colors = im.getcolors()
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if colors:
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return len(colors)
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return None
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self.assertEqual(getcolors("1"), 2)
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self.assertEqual(getcolors("L"), 193)
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self.assertEqual(getcolors("I"), 193)
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self.assertEqual(getcolors("F"), 193)
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self.assertEqual(getcolors("P"), 54) # fixed palette
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self.assertEqual(getcolors("RGB"), None)
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self.assertEqual(getcolors("RGBA"), None)
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self.assertEqual(getcolors("CMYK"), None)
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self.assertEqual(getcolors("YCbCr"), None)
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self.assertEqual(getcolors("L", 128), None)
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self.assertEqual(getcolors("L", 1024), 193)
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self.assertEqual(getcolors("RGB", 8192), None)
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self.assertEqual(getcolors("RGB", 16384), 14836)
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self.assertEqual(getcolors("RGB", 100000), 14836)
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self.assertEqual(getcolors("RGBA", 16384), 14836)
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self.assertEqual(getcolors("CMYK", 16384), 14836)
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self.assertEqual(getcolors("YCbCr", 16384), 11995)
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# --------------------------------------------------------------------
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def test_pack(self):
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# Pack problems for small tables (@PIL209)
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im = lena().quantize(3).convert("RGB")
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expected = [
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(3236, (227, 183, 147)),
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(6297, (143, 84, 81)),
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(6851, (208, 143, 112))]
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A = im.getcolors(maxcolors=2)
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self.assertEqual(A, None)
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A = im.getcolors(maxcolors=3)
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A.sort()
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self.assertEqual(A, expected)
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A = im.getcolors(maxcolors=4)
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A.sort()
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self.assertEqual(A, expected)
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A = im.getcolors(maxcolors=8)
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A.sort()
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self.assertEqual(A, expected)
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A = im.getcolors(maxcolors=16)
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A.sort()
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self.assertEqual(A, expected)
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if __name__ == '__main__':
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unittest.main()
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# End of file
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