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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.
76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
from PIL import Image
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from .helper import PillowTestCase, hopper
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# sample ppm stream
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test_file = "Tests/images/hopper.ppm"
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class TestFilePpm(PillowTestCase):
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def test_sanity(self):
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im = Image.open(test_file)
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im.load()
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self.assertEqual(im.mode, "RGB")
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self.assertEqual(im.size, (128, 128))
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self.assertEqual(im.format, "PPM")
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self.assertEqual(im.get_format_mimetype(), "image/x-portable-pixmap")
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def test_16bit_pgm(self):
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im = Image.open("Tests/images/16_bit_binary.pgm")
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im.load()
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self.assertEqual(im.mode, "I")
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self.assertEqual(im.size, (20, 100))
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self.assertEqual(im.get_format_mimetype(), "image/x-portable-graymap")
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tgt = Image.open("Tests/images/16_bit_binary_pgm.png")
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self.assert_image_equal(im, tgt)
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def test_16bit_pgm_write(self):
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im = Image.open("Tests/images/16_bit_binary.pgm")
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im.load()
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f = self.tempfile("temp.pgm")
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im.save(f, "PPM")
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reloaded = Image.open(f)
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self.assert_image_equal(im, reloaded)
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def test_pnm(self):
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im = Image.open("Tests/images/hopper.pnm")
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self.assert_image_similar(im, hopper(), 0.0001)
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f = self.tempfile("temp.pnm")
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im.save(f)
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reloaded = Image.open(f)
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self.assert_image_equal(im, reloaded)
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def test_truncated_file(self):
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path = self.tempfile("temp.pgm")
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with open(path, "w") as f:
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f.write("P6")
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self.assertRaises(ValueError, Image.open, path)
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def test_neg_ppm(self):
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# Storage.c accepted negative values for xsize, ysize. the
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# internal open_ppm function didn't check for sanity but it
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# has been removed. The default opener doesn't accept negative
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# sizes.
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with self.assertRaises(IOError):
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Image.open("Tests/images/negative_size.ppm")
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def test_mimetypes(self):
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path = self.tempfile("temp.pgm")
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with open(path, "w") as f:
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f.write("P4\n128 128\n255")
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im = Image.open(path)
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self.assertEqual(im.get_format_mimetype(), "image/x-portable-bitmap")
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with open(path, "w") as f:
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f.write("PyCMYK\n128 128\n255")
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im = Image.open(path)
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self.assertEqual(im.get_format_mimetype(), "image/x-portable-anymap")
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