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Tests for #510

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This commit is contained in:
wiredfool 2014-03-25 23:33:49 -07:00
parent a190d64165
commit 89c24e971c
1 changed files with 41 additions and 0 deletions
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41
Tests/test_image_convert.py
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@ -55,4 +55,45 @@ def test_rgba_p():
assert_image_similar(im, comparable, 20)
def test_trns_p():
im = lena('P')
im.info['transparency']=0
f = tempfile('temp.png')
l = im.convert('L')
assert_equal(l.info['transparency'], 0) # undone
assert_no_exception(lambda: l.save(f))
rgb = im.convert('RGB')
assert_equal(rgb.info['transparency'], (0,0,0)) # undone
assert_no_exception(lambda: rgb.save(f))
def test_trns_l():
im = lena('L')
im.info['transparency'] = 128
f = tempfile('temp.png')
rgb = im.convert('RGB')
assert_equal(rgb.info['transparency'], (128,128,128)) # undone
assert_no_exception(lambda: rgb.save(f))
p = im.convert('P')
assert_true('transparency' in p.info)
assert_no_exception(lambda: p.save(f))
def test_trns_RGB():
im = lena('RGB')
im.info['transparency'] = im.getpixel((0,0))
f = tempfile('temp.png')
l = im.convert('L')
assert_equal(l.info['transparency'], l.getpixel((0,0))) # undone
assert_no_exception(lambda: l.save(f))
p = im.convert('P')
assert_true('transparency' in p.info)
assert_no_exception(lambda: p.save(f))