def test_del():
files.open = Mock()
bf = files.BaseFile("filename", 'r')
close_mock = Mock()
bf.close = close_mock
del bf
close_mock.assert_called_with()
files.open = builtin_open
def test_close():
files.open = Mock()
bf = files.BaseFile("filename", 'r')
bf.close()
bf.fileobj.close.assert_called_with()
files.open = builtin_open
def test_create_BaseFile():
files.open = Mock()
bf = files.BaseFile("filename", 'r')
files.open.assert_called_with("filename", "r", files.DEFAULT_BUFFER_SIZE)
files.open = builtin_open