Pytest learning - fixtures

1. Fixture details

1.fixture concept fixture​ is used by pytest to prepare before and after the test (do some pre-steps before running the test case), clean up (deal with the garbage data generated by the test)Code processing mechanism

2, fixture has the following advantages over setup and teardown:

·fixture naming is more flexible and less restrictive

·Data sharing can be realized in the conftest.py configuration, and some configurations can be automatically found without importing

Second, the fixture (@pytest.fixture)

##fixture scope priority (session>module>class>function)

1, (scop = "function") every function or method will be called

Which method you want to use prepend, call it directly

scop= "" (default is function)

2, (scop = "class ") each class is called once

Note that if there is no autouse=true (meaning that all current methods use the pre-method), the pre-method will not be executed

3, (scop = "module") called once per .py file

No matter how many methods or classes are called, they are only executed once in the current .py file

4, (scop = "session") is called once by multiple files, and the .py file is the module

Need to be used in conjunction with conftest.py, only execute once, execute at the beginning