test_fs.py 文件源码

def test_read():
    ''' Test fs.read() works. '''
    filename = 'somefile'
    data = 'somedata'

    with patch('__builtin__.open', mock_open(read_data=data)) as mock_file:
        assert fs.read(filename) == data
        mock_file.assert_called_with(filename, 'r')