Pillow/Tests/test_file_xvthumb.py

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from helper import hopper, unittest, PillowTestCase
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from PIL import Image, XVThumbImagePlugin
TEST_FILE = "Tests/images/hopper.p7"
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class TestFileXVThumb(PillowTestCase):
def test_open(self):
# Act
im = Image.open(TEST_FILE)
# Assert
self.assertEqual(im.format, "XVThumb")
# Create a Hopper image with a similar XV palette
im_hopper = hopper().quantize(palette=im)
self.assert_image_similar(im, im_hopper, 9)
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def test_unexpected_eof(self):
# Test unexpected EOF reading XV thumbnail file
# Arrange
bad_file = "Tests/images/hopper_bad.p7"
# Act / Assert
self.assertRaises(SyntaxError,
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XVThumbImagePlugin.XVThumbImageFile, bad_file)
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def test_invalid_file(self):
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# Arrange
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invalid_file = "Tests/images/flower.jpg"
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# Act / Assert
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self.assertRaises(SyntaxError,
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XVThumbImagePlugin.XVThumbImageFile, invalid_file)
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if __name__ == '__main__':
unittest.main()