Pytest interface automation test framework | setup and teardown functions of pytest

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test_setup01.py

import pytest

def multiply(a, b):
    return a * b

"""
 The first time ：setup_module/teardown_module： In the current file , Before and after the execution of all test cases 
 The second batch ：setup_function/teardown_function： Execute before and after each test function 
 The third batch ：setup/teardown： Execute before and after each test function , this 2 Methods also apply to class methods 
PS:  The definition order of methods has been adjusted , It is also implemented according to the established rules 
"""

def setup_module(module):
    print("setup_module===============================>")


def teardown_module(module):
    print("teardown_module======================>")

def setup_function(function):
    print("setup_function------------------------------>")

def teardown_function(function):
    print("teardown_function------------------------------>")

def setup():
    print("setup--->")

def teardown():
    print("teardown--->")

#  The test case 
def test_mul_01():
    print('test_3_4')
    assert multiply(3,4) == 12

def test_mul_02():
    print('test_6_8')
    assert multiply(6,8) == 48

main.py, Actual execution setup and teardown No printing

import pytest

if __name__ == '__main__':
    pytest.main(["-s", "test_setup01.py"])

test_setup02.py

import pytest

#  Function function 
def multiply(a, b):
    return a * b

"""
pytest It supports the use of test classes , Must be “Test” start , Pay attention to the capitals 
"""

class TestMultiply:
    # =======fixtures=======
    """
     The first time ：setup_ class / teardown_ class：
    #  Execute at the beginning and end of the current test class .
     The second batch ：setup_ method / teardown_ method：
    #  Execute at the beginning and end of each test method .
     The third batch ：setup / teardown：
    #  Execute at the beginning and end of each test method , It can also act on test functions 
    PS： The execution sequence is in batch order , Even if the method position is changed , Is the same 
    """

    @classmethod
    def setup_class(cls):
        print("setup_class==============>")

    @classmethod
    def teardown_class(cls):
        print("teardown_class==============>")

    def setup_method(self, method):
        print("setup_method----->>")

    def teardown_method(self, method):
        print("teardown_method---->>")

    def setup(self):
        print("setup---->")

    def teardown(self):
        print("teardown---->")

    # ======= The test case ===========
    def test_numbers_5_6(self):
        print('test_numbers_5_6')
        assert multiply(5,6) == 30

    def test_strings_b_2(self):
        print('test_strings_b_2')
        assert multiply('b', 2) == "bb"

main.py, In actual operation, there is no printing setup and teardown

import pytest

if __name__ == '__main__':
    pytest.main(["-s", "test_setup02.py"])