Pillow/Tests/test_file_psd.py

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from PIL import Image, PsdImagePlugin
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from .helper import PillowTestCase, hopper
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test_file = "Tests/images/hopper.psd"
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class TestImagePsd(PillowTestCase):
def test_sanity(self):
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im = Image.open(test_file)
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im.load()
self.assertEqual(im.mode, "RGB")
self.assertEqual(im.size, (128, 128))
self.assertEqual(im.format, "PSD")
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im2 = hopper()
self.assert_image_similar(im, im2, 4.8)
def test_unclosed_file(self):
def open():
im = Image.open(test_file)
im.load()
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self.assert_warning(None, open)
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def test_invalid_file(self):
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invalid_file = "Tests/images/flower.jpg"
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self.assertRaises(SyntaxError, PsdImagePlugin.PsdImageFile, invalid_file)
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def test_n_frames(self):
im = Image.open("Tests/images/hopper_merged.psd")
self.assertEqual(im.n_frames, 1)
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self.assertFalse(im.is_animated)
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im = Image.open(test_file)
self.assertEqual(im.n_frames, 2)
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self.assertTrue(im.is_animated)
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def test_eoferror(self):
im = Image.open(test_file)
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# PSD seek index starts at 1 rather than 0
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n_frames = im.n_frames + 1
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# Test seeking past the last frame
self.assertRaises(EOFError, im.seek, n_frames)
self.assertLess(im.tell(), n_frames)
# Test that seeking to the last frame does not raise an error
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im.seek(n_frames - 1)
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def test_seek_tell(self):
im = Image.open(test_file)
layer_number = im.tell()
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self.assertEqual(layer_number, 1)
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self.assertRaises(EOFError, im.seek, 0)
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im.seek(1)
layer_number = im.tell()
self.assertEqual(layer_number, 1)
im.seek(2)
layer_number = im.tell()
self.assertEqual(layer_number, 2)
def test_seek_eoferror(self):
im = Image.open(test_file)
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self.assertRaises(EOFError, im.seek, -1)
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def test_open_after_exclusive_load(self):
im = Image.open(test_file)
im.load()
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im.seek(im.tell() + 1)
im.load()
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def test_icc_profile(self):
im = Image.open(test_file)
self.assertIn("icc_profile", im.info)
icc_profile = im.info["icc_profile"]
self.assertEqual(len(icc_profile), 3144)
def test_no_icc_profile(self):
im = Image.open("Tests/images/hopper_merged.psd")
self.assertNotIn("icc_profile", im.info)
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def test_combined_larger_than_size(self):
# The 'combined' sizes of the individual parts is larger than the
# declared 'size' of the extra data field, resulting in a backwards seek.
# If we instead take the 'size' of the extra data field as the source of truth,
# then the seek can't be negative
with self.assertRaises(IOError):
Image.open("Tests/images/combined_larger_than_size.psd")