data = read_json_file()         # 1. grab the test data

forEach key in data:
    docstring = key             # 2. top-level keys are docstrings
    tests = data[key]           # 3. each contains an Array of tests
    
    forEach test in tests:      # 4. run the tests
        argv = test['input']
        expected = test['expected']
        assert docopt(docstring, argv, help=False) == expected

                                # And you're done!