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https://github.com/python-pillow/Pillow.git
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4de5477b61
With the introduction and use of pytest, it is simple and easy to
execute specific tests in isolation through documented command line
arguments. Either by specifying the module path or through the `-k
EXPRESSION` argument. There is no longer any need to provide the
boilerplate:
if __name__ == '__main__':
unittest.main()
To every test file. It is simply noise.
The pattern remains in test files that aren't named with `test_*` as
those files are not discovered and executed by pytest by default.
78 lines
2.2 KiB
Python
78 lines
2.2 KiB
Python
from .helper import PillowTestCase, hopper
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from PIL import Image, BmpImagePlugin
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import io
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class TestFileBmp(PillowTestCase):
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def roundtrip(self, im):
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outfile = self.tempfile("temp.bmp")
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im.save(outfile, 'BMP')
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reloaded = Image.open(outfile)
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reloaded.load()
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self.assertEqual(im.mode, reloaded.mode)
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self.assertEqual(im.size, reloaded.size)
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self.assertEqual(reloaded.format, "BMP")
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def test_sanity(self):
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self.roundtrip(hopper())
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self.roundtrip(hopper("1"))
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self.roundtrip(hopper("L"))
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self.roundtrip(hopper("P"))
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self.roundtrip(hopper("RGB"))
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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,
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BmpImagePlugin.BmpImageFile, fp)
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def test_save_to_bytes(self):
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output = io.BytesIO()
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im = hopper()
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im.save(output, "BMP")
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output.seek(0)
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reloaded = Image.open(output)
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self.assertEqual(im.mode, reloaded.mode)
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self.assertEqual(im.size, reloaded.size)
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self.assertEqual(reloaded.format, "BMP")
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def test_dpi(self):
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dpi = (72, 72)
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output = io.BytesIO()
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im = hopper()
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im.save(output, "BMP", dpi=dpi)
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output.seek(0)
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reloaded = Image.open(output)
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self.assertEqual(reloaded.info["dpi"], dpi)
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def test_save_bmp_with_dpi(self):
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# Test for #1301
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# Arrange
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outfile = self.tempfile("temp.jpg")
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im = Image.open("Tests/images/hopper.bmp")
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# Act
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im.save(outfile, 'JPEG', dpi=im.info['dpi'])
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# Assert
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reloaded = Image.open(outfile)
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reloaded.load()
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self.assertEqual(im.info['dpi'], reloaded.info['dpi'])
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self.assertEqual(im.size, reloaded.size)
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self.assertEqual(reloaded.format, "JPEG")
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def test_load_dib(self):
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# test for #1293, Imagegrab returning Unsupported Bitfields Format
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im = BmpImagePlugin.DibImageFile('Tests/images/clipboard.dib')
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target = Image.open('Tests/images/clipboard_target.png')
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self.assert_image_equal(im, target)
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