mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-11-10 19:56:47 +03:00
87 lines
3.0 KiB
Python
87 lines
3.0 KiB
Python
from __future__ import unicode_literals
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import io
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from .helper import unittest, PillowTestCase
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from PIL import features
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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.assertEqual(lines[2], "-" * 68)
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self.assertTrue(lines[3].startswith("Python modules loaded from "))
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self.assertTrue(lines[4].startswith("Binary modules loaded from "))
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self.assertEqual(lines[5], "-" * 68)
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self.assertTrue(lines[6].startswith("Python "))
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jpeg = (
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"\n" +
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"-" * 68 + "\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 + "\n"
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)
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self.assertIn(jpeg, out)
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