Unittest unit test framework

background

unittest Also known as PyUnit, It's a reference to Java in JUnit Frames produce .
unittest Enable us to create test cases 、 test suite 、 Test fixture capability .

form

• Test Fixture（ Test fixture ）： You can define the preparation work before single or multiple test execution and the cleaning work after test execution .
• Test Case（ The test case ）：unittest The smallest unit of test execution in .
• Test Suite（ test suite ）： A test suite is a collection of multiple tests or test cases , It is a set of tests created for the corresponding functions and modules of the tested program , The test cases in a test suite will be executed together .
• Test Runner（ Test the actuator ）： The test executor is responsible for test execution scheduling and generating test results to users .
• Test Report（ Test report ）： The execution of all use cases passes through the results , And a summary of the overall health status and running time .

In general ,unittest The test can be divided into three parts ：

• Arrane： Preconditions for initializing tests , Contains initializing the object being tested 、 Related configurations and dependencies .
• Act： Used to perform functional operations .
• Assert： It is used to verify whether the actual results are consistent with the expected results .