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65 lines
1.7 KiB
Python
65 lines
1.7 KiB
Python
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from tester import *
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from PIL import Image
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def test_getcolors():
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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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assert_equal(getcolors("1"), 2)
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assert_equal(getcolors("L"), 193)
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assert_equal(getcolors("I"), 193)
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assert_equal(getcolors("F"), 193)
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assert_equal(getcolors("P"), 54) # fixed palette
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assert_equal(getcolors("RGB"), None)
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assert_equal(getcolors("RGBA"), None)
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assert_equal(getcolors("CMYK"), None)
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assert_equal(getcolors("YCbCr"), None)
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assert_equal(getcolors("L", 128), None)
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assert_equal(getcolors("L", 1024), 193)
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assert_equal(getcolors("RGB", 8192), None)
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assert_equal(getcolors("RGB", 16384), 14836)
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assert_equal(getcolors("RGB", 100000), 14836)
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assert_equal(getcolors("RGBA", 16384), 14836)
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assert_equal(getcolors("CMYK", 16384), 14836)
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assert_equal(getcolors("YCbCr", 16384), 11995)
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# --------------------------------------------------------------------
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def test_pack():
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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 = [(3236, (227, 183, 147)), (6297, (143, 84, 81)), (6851, (208, 143, 112))]
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A = im.getcolors(maxcolors=2)
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assert_equal(A, None)
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A = im.getcolors(maxcolors=3)
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A.sort()
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assert_equal(A, expected)
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A = im.getcolors(maxcolors=4)
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A.sort()
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assert_equal(A, expected)
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A = im.getcolors(maxcolors=8)
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A.sort()
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assert_equal(A, expected)
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A = im.getcolors(maxcolors=16)
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A.sort()
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assert_equal(A, expected)
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