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https://github.com/python-pillow/Pillow.git
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33dabf986f
The unittest in helper.py has not offered an interesting abstraction
since dbe9f85c7d so import from the more
typical stdlib location.
91 lines
3.1 KiB
Python
91 lines
3.1 KiB
Python
import io
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import unittest
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from PIL import features
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from .helper import PillowTestCase
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try:
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from PIL import _webp
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HAVE_WEBP = True
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except ImportError:
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HAVE_WEBP = False
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class TestFeatures(PillowTestCase):
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def test_check(self):
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# Check the correctness of the convenience function
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for module in features.modules:
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self.assertEqual(features.check_module(module), features.check(module))
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for codec in features.codecs:
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self.assertEqual(features.check_codec(codec), features.check(codec))
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for feature in features.features:
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self.assertEqual(features.check_feature(feature), features.check(feature))
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@unittest.skipUnless(HAVE_WEBP, "WebP not available")
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def test_webp_transparency(self):
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self.assertEqual(
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features.check("transp_webp"), not _webp.WebPDecoderBuggyAlpha()
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)
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self.assertEqual(features.check("transp_webp"), _webp.HAVE_TRANSPARENCY)
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@unittest.skipUnless(HAVE_WEBP, "WebP not available")
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def test_webp_mux(self):
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self.assertEqual(features.check("webp_mux"), _webp.HAVE_WEBPMUX)
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@unittest.skipUnless(HAVE_WEBP, "WebP not available")
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def test_webp_anim(self):
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self.assertEqual(features.check("webp_anim"), _webp.HAVE_WEBPANIM)
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def test_check_modules(self):
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for feature in features.modules:
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self.assertIn(features.check_module(feature), [True, False])
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for feature in features.codecs:
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self.assertIn(features.check_codec(feature), [True, False])
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def test_supported_modules(self):
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self.assertIsInstance(features.get_supported_modules(), list)
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self.assertIsInstance(features.get_supported_codecs(), list)
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self.assertIsInstance(features.get_supported_features(), list)
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self.assertIsInstance(features.get_supported(), list)
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def test_unsupported_codec(self):
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# Arrange
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codec = "unsupported_codec"
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# Act / Assert
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self.assertRaises(ValueError, features.check_codec, codec)
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def test_unsupported_module(self):
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# Arrange
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module = "unsupported_module"
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# Act / Assert
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self.assertRaises(ValueError, features.check_module, module)
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def test_pilinfo(self):
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buf = io.StringIO()
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features.pilinfo(buf)
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out = buf.getvalue()
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lines = out.splitlines()
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self.assertEqual(lines[0], "-" * 68)
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self.assertTrue(lines[1].startswith("Pillow "))
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self.assertTrue(lines[2].startswith("Python "))
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lines = lines[3:]
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while lines[0].startswith(" "):
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lines = lines[1:]
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self.assertEqual(lines[0], "-" * 68)
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self.assertTrue(lines[1].startswith("Python modules loaded from "))
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self.assertTrue(lines[2].startswith("Binary modules loaded from "))
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self.assertEqual(lines[3], "-" * 68)
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jpeg = (
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"\n"
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+ "-" * 68
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+ "\n"
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+ "JPEG image/jpeg\n"
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+ "Extensions: .jfif, .jpe, .jpeg, .jpg\n"
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+ "Features: open, save\n"
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+ "-" * 68
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+ "\n"
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)
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self.assertIn(jpeg, out)
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