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Add tests for issue #4142

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Jan Solanti 2020-01-09 05:06:48 +02:00 committed by Andrew Murray
parent 097f7d0f56
commit ddd3a2b482
2 changed files with 15 additions and 0 deletions
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Tests/images/dxt5-colorblock-alpha-issue-4142.dds Normal file
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Tests/test_file_dds.py
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@ -190,6 +190,21 @@ def test_short_file():
short_file()
def test_dxt5_colorblock_alpha_issue_4142():
""" Check that colorblocks are decoded correctly in DXT5"""
with Image.open("Tests/images/dxt5-colorblock-alpha-issue-4142.dds") as im:
px = im.getpixel((0, 0))
assert px[0] != 0
assert px[1] != 0
assert px[2] != 0
px = im.getpixel((1, 0))
assert px[0] != 0
assert px[1] != 0
assert px[2] != 0
def test_unimplemented_pixel_format():
with pytest.raises(NotImplementedError):
Image.open("Tests/images/unimplemented_pixel_format.dds")