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54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
from helper import unittest, PillowTestCase, tearDownModule
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from PIL import Image
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Image.USE_CFFI_ACCESS = False
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def color(mode):
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bands = Image.getmodebands(mode)
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if bands == 1:
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return 1
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else:
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return tuple(range(1, bands+1))
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class TestImageGetPixel(PillowTestCase):
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def check(self, mode, c=None):
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if not c:
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c = color(mode)
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# check putpixel
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im = Image.new(mode, (1, 1), None)
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im.putpixel((0, 0), c)
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self.assertEqual(
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im.getpixel((0, 0)), c,
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"put/getpixel roundtrip failed for mode %s, color %s" % (mode, c))
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# check inital color
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im = Image.new(mode, (1, 1), c)
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self.assertEqual(
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im.getpixel((0, 0)), c,
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"initial color failed for mode %s, color %s " % (mode, color))
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def test_basic(self):
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for mode in ("1", "L", "LA", "I", "I;16", "I;16B", "F",
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"P", "PA", "RGB", "RGBA", "RGBX", "CMYK", "YCbCr"):
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self.check(mode)
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def test_signedness(self):
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# see https://github.com/python-pillow/Pillow/issues/452
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# pixelaccess is using signed int* instead of uint*
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for mode in ("I;16", "I;16B"):
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self.check(mode, 2**15-1)
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self.check(mode, 2**15)
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self.check(mode, 2**15+1)
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self.check(mode, 2**16-1)
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if __name__ == '__main__':
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unittest.main()
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# End of file
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