一、fixture 之 params参数 

　　   1、字典不能单独作为fixture的传参，需要被嵌套在元组、列表中 。 如果字典作为传参，只打印字典的key 。

　　   示例代码如下：

import pytest


# fixture 参数化
# 字典不能单独作为fixture的传参，需要被嵌套在元组、列表中。

@pytest.fixture(params=data)
def user_register(request):
    user_info = request.param
    print(f'\n==========={user_info}')
    result = 'success'
    return user_info, result


def test_ee(user_register):
    print(f'\n***********{user_register}')

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　　  执行结果如下，只打印了字典的 key 值

D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day11\venv\Scripts\python.exe "C:\SkyWorkSpace\WorkTools\PyCharm\PyCharm_Community_Edition_202003\PyCharm Community Edition 2020.3\plugins\python-ce\helpers\pycharm\_jb_pytest_runner.py" --path D:/SkyWorkSpace/WorkSpace/Pytest/Temp/day11/ee/test_ee.py
Testing started at 12:28 ...
Launching pytest with arguments D:/SkyWorkSpace/WorkSpace/Pytest/Temp/day11/ee/test_ee.py in D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day11\ee

============================= test session starts =============================
platform win32 -- Python 3.8.6, pytest-6.2.4, py-1.10.0, pluggy-0.13.1 -- D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day11\venv\Scripts\python.exe
cachedir: .pytest_cache
rootdir: D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day11\ee
collecting ... collected 2 items

test_ee.py::test_ee[name] 
===========name
PASSED                                         [ 50%]
***********('name', 'success')

test_ee.py::test_ee[pwd] 
===========pwd
PASSED                                          [100%]
***********('pwd', 'success')


============================== 2 passed in 0.01s ==============================

Process finished with exit code 0

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　　2、把字典嵌套在列表中传参 。

　　示例代码如下：

import pytest

# fixture 参数化
# 原来，字典不能单独作为fixture的传参，需要被嵌套在元组、列表中。
# data = ['sky', '123']
# data = {'name': 'Tony', 'pwd': '456'}
# data = ('sky', '123')

# 把字典嵌套在列表中传参
data = [
    {'name': 'Tony', 'pwd': '456'},
    {'name': 'jack', 'pwd': '789'}
]

# data = (
#     {'name': 'Tony', 'pwd': '456'},
#     {'name': 'jack', 'pwd': '789'}
# )


@pytest.fixture(params=data)
def user_register(request):
    user_info = request.param
    print(f'\n==========={user_info}')
    result = 'success'
    return user_info, result


def test_ee(user_register):
    print(f'\n***********{user_register}')

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　　执行结果如下：

D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day11\venv\Scripts\python.exe "C:\SkyWorkSpace\WorkTools\PyCharm\PyCharm_Community_Edition_202003\PyCharm Community Edition 2020.3\plugins\python-ce\helpers\pycharm\_jb_pytest_runner.py" --path D:/SkyWorkSpace/WorkSpace/Pytest/Temp/day11/ee/test_ee.py
Testing started at 12:32 ...
Launching pytest with arguments D:/SkyWorkSpace/WorkSpace/Pytest/Temp/day11/ee/test_ee.py in D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day11\ee

============================= test session starts =============================
platform win32 -- Python 3.8.6, pytest-6.2.4, py-1.10.0, pluggy-0.13.1 -- D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day11\venv\Scripts\python.exe
cachedir: .pytest_cache
rootdir: D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day11\ee
collecting ... collected 2 items

test_ee.py::test_ee[user_register0] 
==========={'name': 'Tony', 'pwd': '456'}
PASSED                               [ 50%]
***********({'name': 'Tony', 'pwd': '456'}, 'success')

test_ee.py::test_ee[user_register1] 
==========={'name': 'jack', 'pwd': '789'}
PASSED                               [100%]
***********({'name': 'jack', 'pwd': '789'}, 'success')


============================== 2 passed in 0.01s ==============================

Process finished with exit code 0

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