def __init__(self, test_case, contents):
    super(FileMockFactory, self).__init__(test_case, {None: contents})
The string representing the misfit object should be the classname,
dataset/ETHPy150Open google/fplutil/buildutil/android_test.py/FileMockFactory.__init__--crossover with--dataset/ETHPy150Open orcasgit/python-misfit/tests/test_misfit.py/TestMisfitAPI.assert_misfit_string