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Add (failing) test for #664

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This commit is contained in:
hugovk 2014-05-17 19:08:08 +03:00
parent fc55580a69
commit 55b1accb42
1 changed files with 21 additions and 8 deletions
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29
Tests/test_image_convert.py
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@ -45,7 +45,7 @@ def test_16bit():
def test_16bit_workaround():
im = Image.open('Tests/images/16bit.cropped.tif')
_test_float_conversion(im.convert('I'))
def test_rgba_p():
im = lena('RGBA')
im.putalpha(lena('L'))
@ -54,8 +54,8 @@ def test_rgba_p():
comparable = converted.convert('RGBA')
assert_image_similar(im, comparable, 20)
def test_trns_p():
def test_trns_p():
im = lena('P')
im.info['transparency']=0
@ -69,13 +69,26 @@ def test_trns_p():
rgb = im.convert('RGB')
assert_equal(rgb.info['transparency'], (0,0,0)) # undone
assert_no_exception(lambda: rgb.save(f))
def test_trns_p_rgba():
# Arrange
im = lena('P')
im.info['transparency'] = 128
# Act
rgba = im.convert('RGBA')
# Assert
assert_false('transparency' in rgba.info)
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))
@ -89,13 +102,13 @@ def test_trns_l():
assert_false('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))
@ -103,7 +116,7 @@ def test_trns_RGB():
p = im.convert('P')
assert_true('transparency' in p.info)
assert_no_exception(lambda: p.save(f))
p = assert_warning(UserWarning,
lambda: im.convert('P', palette = Image.ADAPTIVE))
assert_false('transparency' in p.info)