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d50445ff30
Similar to the recent adoption of Black. isort is a Python utility to sort imports alphabetically and automatically separate into sections. By using isort, contributors can quickly and automatically conform to the projects style without thinking. Just let the tool do it. Uses the configuration recommended by the Black to avoid conflicts of style. Rewrite TestImageQt.test_deprecated to no rely on import order.
66 lines
1.7 KiB
Python
66 lines
1.7 KiB
Python
from PIL import DcxImagePlugin, Image
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from .helper import PillowTestCase, hopper
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# Created with ImageMagick: convert hopper.ppm hopper.dcx
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TEST_FILE = "Tests/images/hopper.dcx"
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class TestFileDcx(PillowTestCase):
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def test_sanity(self):
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# Arrange
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# Act
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im = Image.open(TEST_FILE)
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# Assert
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self.assertEqual(im.size, (128, 128))
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self.assertIsInstance(im, DcxImagePlugin.DcxImageFile)
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orig = hopper()
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self.assert_image_equal(im, orig)
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def test_unclosed_file(self):
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def open():
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im = Image.open(TEST_FILE)
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im.load()
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self.assert_warning(None, open)
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def test_invalid_file(self):
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with open("Tests/images/flower.jpg", "rb") as fp:
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self.assertRaises(SyntaxError, DcxImagePlugin.DcxImageFile, fp)
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def test_tell(self):
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# Arrange
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im = Image.open(TEST_FILE)
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# Act
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frame = im.tell()
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# Assert
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self.assertEqual(frame, 0)
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def test_n_frames(self):
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im = Image.open(TEST_FILE)
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self.assertEqual(im.n_frames, 1)
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self.assertFalse(im.is_animated)
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def test_eoferror(self):
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im = Image.open(TEST_FILE)
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n_frames = im.n_frames
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# Test seeking past the last frame
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self.assertRaises(EOFError, im.seek, n_frames)
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self.assertLess(im.tell(), n_frames)
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# 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_too_far(self):
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# Arrange
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im = Image.open(TEST_FILE)
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frame = 999 # too big on purpose
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# Act / Assert
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self.assertRaises(EOFError, im.seek, frame)
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