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57 lines
1.3 KiB
Python
57 lines
1.3 KiB
Python
from helper import unittest, PillowTestCase, hopper
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from PIL import Image
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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_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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if __name__ == '__main__':
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unittest.main()
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# End of file
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