Pillow/Tests/test_file_msp.py

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from helper import unittest, PillowTestCase, hopper
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from PIL import Image, MspImagePlugin
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import os
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TEST_FILE = "Tests/images/hopper.msp"
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EXTRA_DIR = "Tests/images/picins"
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YA_EXTRA_DIR = "Tests/images/msp"
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class TestFileMsp(PillowTestCase):
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def test_sanity(self):
file = self.tempfile("temp.msp")
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hopper("1").save(file)
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im = Image.open(file)
im.load()
self.assertEqual(im.mode, "1")
self.assertEqual(im.size, (128, 128))
self.assertEqual(im.format, "MSP")
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def test_invalid_file(self):
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invalid_file = "Tests/images/flower.jpg"
self.assertRaises(SyntaxError,
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MspImagePlugin.MspImageFile, invalid_file)
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def test_bad_checksum(self):
# Arrange
# This was created by forcing Pillow to save with checksum=0
bad_checksum = "Tests/images/hopper_bad_checksum.msp"
# Act / Assert
self.assertRaises(SyntaxError,
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MspImagePlugin.MspImageFile, bad_checksum)
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def test_open_windows_v1(self):
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# Arrange
# Act
im = Image.open(TEST_FILE)
# Assert
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self.assert_image_equal(im, hopper("1"))
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self.assertIsInstance(im, MspImagePlugin.MspImageFile)
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def _assert_file_image_equal(self, source_path, target_path):
with Image.open(source_path) as im:
target = Image.open(target_path)
self.assert_image_equal(im, target)
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@unittest.skipIf(not os.path.exists(EXTRA_DIR),
"Extra image files not installed")
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def test_open_windows_v2(self):
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files = (os.path.join(EXTRA_DIR, f) for f in os.listdir(EXTRA_DIR)
if os.path.splitext(f)[1] == '.msp')
for path in files:
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self._assert_file_image_equal(path,
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path.replace('.msp', '.png'))
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@unittest.skipIf(not os.path.exists(YA_EXTRA_DIR),
"Even More Extra image files not installed")
def test_msp_v2(self):
for f in os.listdir(YA_EXTRA_DIR):
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if '.MSP' not in f:
continue
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path = os.path.join(YA_EXTRA_DIR, f)
self._assert_file_image_equal(path,
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path.replace('.MSP', '.png'))
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def test_cannot_save_wrong_mode(self):
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# Arrange
im = hopper()
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filename = self.tempfile("temp.msp")
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# Act/Assert
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self.assertRaises(IOError, im.save, filename)
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if __name__ == '__main__':
unittest.main()