# file_name: test_parametrize.py

import pytest


class Test_D:

    @pytest.mark.parametrize("a", [1, 2, 3])  # 参数a被赋予3个值，test_a将会运行3遍
    def test_a(self, a):  # 参数必须和parametrize里面的参数一致
        print('\n------------------> test_a has ran, and a = {}'.format(a))
        assert 1 == a


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