Pillow/Tests/test_features.py
Jon Dufresne 4de5477b61 Remove unnecessary unittest.main() boilerplate from test files
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.
2019-02-03 10:10:16 -08:00

66 lines
2.3 KiB
Python

from .helper import unittest, PillowTestCase
from PIL import features
try:
from PIL import _webp
HAVE_WEBP = True
except ImportError:
HAVE_WEBP = False
class TestFeatures(PillowTestCase):
def test_check(self):
# Check the correctness of the convenience function
for module in features.modules:
self.assertEqual(features.check_module(module),
features.check(module))
for codec in features.codecs:
self.assertEqual(features.check_codec(codec),
features.check(codec))
for feature in features.features:
self.assertEqual(features.check_feature(feature),
features.check(feature))
@unittest.skipUnless(HAVE_WEBP, "WebP not available")
def test_webp_transparency(self):
self.assertEqual(features.check('transp_webp'),
not _webp.WebPDecoderBuggyAlpha())
self.assertEqual(features.check('transp_webp'),
_webp.HAVE_TRANSPARENCY)
@unittest.skipUnless(HAVE_WEBP, "WebP not available")
def test_webp_mux(self):
self.assertEqual(features.check('webp_mux'),
_webp.HAVE_WEBPMUX)
@unittest.skipUnless(HAVE_WEBP, "WebP not available")
def test_webp_anim(self):
self.assertEqual(features.check('webp_anim'),
_webp.HAVE_WEBPANIM)
def test_check_modules(self):
for feature in features.modules:
self.assertIn(features.check_module(feature), [True, False])
for feature in features.codecs:
self.assertIn(features.check_codec(feature), [True, False])
def test_supported_modules(self):
self.assertIsInstance(features.get_supported_modules(), list)
self.assertIsInstance(features.get_supported_codecs(), list)
self.assertIsInstance(features.get_supported_features(), list)
self.assertIsInstance(features.get_supported(), list)
def test_unsupported_codec(self):
# Arrange
codec = "unsupported_codec"
# Act / Assert
self.assertRaises(ValueError, features.check_codec, codec)
def test_unsupported_module(self):
# Arrange
module = "unsupported_module"
# Act / Assert
self.assertRaises(ValueError, features.check_module, module)