In this section, you’ll learn about unit testing in Python by using the unittest modules to make your code more robust.<\/p>\n\n\n\n
unittest<\/code> module<\/li>- Run unit tests fast<\/li>
- Skip tests unconditionally and conditionally<\/li>
- Using test doubles including mocks, stubs, and fakes<\/li>
- Parameterize tests<\/li>
- Generate test coverage reports<\/li><\/ul>\n\n\n\n\n
Section 1. Introduction to unit testing in Python #<\/a><\/h2>\n\n\n\nThis section introduces you to the unit testing and the unittest module. After completing this section, you’ll know how to define and execute unit tests effectively.<\/p>\n\n\n\n
- What is unit testing<\/a> – introduce you to the unittest testing and how to use the unittest module to perform unit tests.<\/li>
- Test fixtures<\/a> – learn how to use test fixtures including setUp() and tearDown() to carry out the steps before and after test methods.<\/li>
- Skipping tests<\/a> – guide you on how to skip a test method or test class.<\/li>
- Running unittest<\/a> – show you various commands to run unit tests.<\/li><\/ul>\n<\/div><\/div>\n\n\n\n\n
Section 2. assert methods #<\/a><\/h2>\n\n\n\nThis section covers the assert methods so that you know how to each of them more effectively.<\/p>\n\n\n\n
- assert methods<\/a> – introduce to you a brief overview of the assert methods of the
TestCase<\/code> class.<\/li>- assertEqual()<\/a> – test if two values are equal.<\/li>
- assertAlmostEqual()<\/a> – test if two values are approximately equal.<\/li>
- assertIs()<\/a> – test if two objects are the same.<\/li>
- assertIsInstance()<\/a> – test if an object is an instance of a class or a tuple of classes.<\/li>
- assertIsNone()<\/a> – test if an expression is None.<\/li>
- assertTrue()<\/a> – test if an expression is True.<\/li>
- assertIn()<\/a> – test if a member is in a container.<\/li><\/ul>\n<\/div><\/div>\n\n\n\n\n
Section 3. Test doubles #<\/a><\/h2>\n\n\n\nThis section introduces to you the test doubles to decouple the system under test code from the rest of the system so that code can be tested in isolation.<\/p>\n\n\n\n
- Mock<\/a> – learn how to use the Mock class to mimic behaviors of another function or class.<\/li>
- patch()<\/a> – show you how to use the patch() to temporarily replace an object with another object for testing.<\/li>
- Stubs<\/a> – show you how to use the MagicMock class & patch() to create stubs.<\/li>
- Mocking requests module<\/a> – learn how to mock the requests module to test an API call using the unittest module.<\/li><\/ul>\n<\/div><\/div>\n\n\n\n\n
Section 4. Test coverage & Parameterized tests #<\/a><\/h2>\n\n\n\nThis section introduces you to the test coverage and how to define parameterized tests using the subTest()<\/code> context manager.<\/p>\n\n\n\n- Generating test coverage reports<\/a> – learn about test coverage and how to generate the test coverage report using the coverage module.<\/li>
- Defining parameterized tests using subTest() <\/a>– show you how to define parameterized tests\u00a0using the unittest’s subTest() context manager.<\/li><\/ul>\n<\/div><\/div>\n\n\t
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