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import unittest
from scrapy.utils.encoding import encoding_exists, resolve_encoding
class UtilsEncodingTestCase(unittest.TestCase):
_ENCODING_ALIASES = {
'foo': 'cp1252',
'bar': 'none',
}
def test_resolve_encoding(self):
self.assertEqual(resolve_encoding('latin1', self._ENCODING_ALIASES),
'latin1')
self.assertEqual(resolve_encoding('foo', self._ENCODING_ALIASES),
'cp1252')
def test_encoding_exists(self):
assert encoding_exists('latin1', self._ENCODING_ALIASES)
assert encoding_exists('foo', self._ENCODING_ALIASES)
assert not encoding_exists('bar', self._ENCODING_ALIASES)
assert not encoding_exists('none', self._ENCODING_ALIASES)
if __name__ == "__main__":
unittest.main()
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