def test_defdict_with_key(self):
factory = mock.MagicMock()
testdict = defdict.DefaultDictWithKey(factory)
# pylint: disable=pointless-statement
testdict['a']
testdict['b']
self.assertEqual(2, len(factory.mock_calls))
self.assertEqual(('a', ), factory.mock_calls[0][1])
self.assertEqual(('b', ), factory.mock_calls[1][1])
detected = chardet.detect(rawdata)
encoding = detected['encoding']
# Ignore encoding errors for reading the contents because input files
# routinely break this assumption.
errors = 'ignore'
with open(filename, encoding=encoding, errors=errors) as file:
return file.read()
def get_file(filename):
"""Create or reuse a globally registered instance of a FileMemo.
Note: the FileMemo objects' lifetimes are reused for the duration of the
process. This is usually the intended behavior. Always create them by
calling this constructor.
Args:
filename: A path string, the absolute name of the file whose memo to create.
Returns:
A FileMemo instance.
"""
assert path.isabs(filename), (
"Path should be absolute in order to guarantee a single call.")
return _CACHE[filename]
_CACHE = defdict.DefaultDictWithKey(_FileMemo)
