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64 lines
2.2 KiB
64 lines
2.2 KiB
4 months ago
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# Written by Will Bond <will@wbond.net>
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#
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# The author or authors of this code dedicate any and all copyright interest in
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# this code to the public domain. We make this dedication for the benefit of the
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# public at large and to the detriment of our heirs and successors. We intend
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# this dedication to be an overt act of relinquishment in perpetuity of all
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# present and future rights to this code under copyright law.
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def data(provider_method, first_param_name_suffix=False):
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"""
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A method decorator for unittest.TestCase classes that configured a
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static method to be used to provide multiple sets of test data to a single
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test
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:param provider_method:
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The name of the staticmethod of the class to use as the data provider
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:param first_param_name_suffix:
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If the first parameter for each set should be appended to the method
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name to generate the name of the test. Otherwise integers are used.
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:return:
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The decorated function
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"""
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def test_func_decorator(test_func):
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test_func._provider_method = provider_method
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test_func._provider_name_suffix = first_param_name_suffix
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return test_func
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return test_func_decorator
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def data_decorator(cls):
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"""
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A class decorator that works with the @provider decorator to generate test
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method from a data provider
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"""
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def generate_test_func(name, original_function, num, params):
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if original_function._provider_name_suffix:
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data_name = params[0]
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params = params[1:]
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else:
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data_name = num
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expanded_name = 'test_%s_%s' % (name, data_name)
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# We used expanded variable names here since this line is present in
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# backtraces that are generated from test failures.
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def generated_test_function(self):
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original_function(self, *params)
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setattr(cls, expanded_name, generated_test_function)
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for name in dir(cls):
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func = getattr(cls, name)
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if hasattr(func, '_provider_method'):
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num = 1
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for params in getattr(cls, func._provider_method)():
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generate_test_func(name, func, num, params)
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num += 1
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return cls
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