介绍

coverage 在单元测试中可以显示覆盖率，显示更清晰的数据

• 支持python 2.6-python3.X
• pip install coverage安装

测试代码

defadd(a, b):returna + bdefsubtract(a, b):returna - bdefmultiply(a, b):returna * bdefdivide(numerator, denominator):returnfloat(numerator) / denominator

• unittest测试

importmymathimportunittestclassTestAdd(unittest.TestCase):"""
    Test the add function from the mymath library
    """deftest_add_integers(self):"""
        Test that the addition of two integers returns the correct total
        """result = mymath.add(1,2)
        self.assertEqual(result,3)deftest_add_floats(self):"""
        Test that the addition of two floats returns the correct result
        """result = mymath.add(10.5,2)
        self.assertEqual(result,12.5)deftest_add_strings(self):"""
        Test the addition of two strings returns the two string as one
        concatenated string
        """result = mymath.add('abc','def')
        self.assertEqual(result,'abcdef')if__name__ =='__main__':
    unittest.main()

• 命名运行

coverageruntest_mymath.pycoveragereport-m