def test_algorithm_with_tuple(self): test_logger.debug("SumFormulaTest - test_algorithm_with_tuple Starts") sum_formula = SumFormula() data_list = [("a", 1), ("b", 2), ("c", 3), ( "d", 4), ("e", 5)] self.assertEquals(15, sum_formula.calculate(data_list, is_tuple=True, index=1)) data_list = [("a", "a", 1), ("b", "b", 2), ("c", "c", 3), ("d", "d", 4), ("e", "e", 5)] self.assertEquals(15, sum_formula.calculate(data_list, is_tuple=True, index=2)) data_list = [("a", "a", 1), ("e", "e", 5)] self.assertEquals(26, sum_formula.calculate(data_list, is_tuple=True, index=2, power=2)) test_logger.debug("SumFormulaTest - test_algorithm_with_tuple Ends")
def __algorithm(self): try: mean = Mean() mean_value = mean.calculate(self._data) values = map(lambda x: (float(x) - mean_value), self._data) sum_formula = SumFormula() sum_of_powers = sum_formula.calculate(values, power=2) result = sum_of_powers / (self._n - 1) return round(result, 4) except: raise
def test_formula(self): test_logger.debug("SumFormulaTest - test_formula Starts") sum_formula = SumFormula() data_list = [1, 2, 3, 4, 5] self.assertEquals(15, sum_formula.calculate(data_list)) data_list = [1, 2, 3, 4] self.assertEquals(10, sum_formula.calculate(data_list)) data_list = [2] self.assertEquals(4, sum_formula.calculate(data_list, power=2)) data_list = [1, 2, 3, 4] self.assertEquals(30, sum_formula.calculate(data_list, power=2)) test_logger.debug("SumFormulaTest - test_formula Ends")