Pytest test framework notes

1. Use case identification mechanism

•  Automatically find in the running project directory  test_ The beginning or _test Final document 
  

•  The use case file is marked with test_ The first function will be treated as a test case 

•  The use case file is marked with Test Initial class , Inside test_ Opening method , Will be used as a use case 

2. Use case execution sequence

•  Use case file names begin with ascii Code to sort 

•  Use cases in the use case file ： Execute in the order of use case writing 

3.pytest Before and after

@pytest.fixture

•  Parameters ：scope: Specify the level before and after （ Use cases function, Test class class, modular module）

•  Parameters ：autouse=True  Automatically add pre and post to use cases 

4.pytest Case marking

•  stay pytest.ini Register the mark in the file 

•  Tag use cases ：@pytest.mark. Tagnames 

•  Execute through parameters -m To filter the marked use cases 

5.pytest Use case parameterization

• @pytest.mark.parametrize('item', cases)