#coding=utf-8
import pytest
'''
pytest参数化
'''

def add(a,b):
    return a+b

"""
pytest参数化用@pytest.mark.parametrize表示：
a和b代表要参数化的变量名，result是期望结果的参数化的变量名
所有的数据必须用列表括起元祖 [(),(),()]
或是列表括起的列表 [[],[],[]]

注：@pytest.mark.parametrize()装饰器接收两个参数，
第一个参数是字符串的形式标识用例函数的参数，
第二个参数以元祖的形式传递测试数据() 或者是 列表括起的元祖的形式[(),(),()]
"""
@pytest.mark.parametrize(
    'a,b,result',
    [
        (1,2,3),
        (4,5,9),
        ('he','llo','hello')
    ]
)


改进：
resultList= [
        (1,2,3),
        (4,5,9),
        ('he','llo','hello')
    ]
或：
resultList= [
        [1,2,3],
        [4,5,9],
        ['he','llo','hello']
    ]

@pytest.mark.parametrize(
    'a,b,result',
     resultList
)


#多个参数的情况：resultList是外层列表，元素为列表或元祖，其中每个子元素和参数名变量一一对应起来
#测试用例的传参或者引用参数名必须是上述参数化的的变量名，预期结果引用必须是上述参数化的预期结果变量名
def test_add(a,b,result): #a,b,result接收装饰器传入的数据
    print("{0}-{1}->{2}".format(a,b,result))
    assert add(a,b)==result

if __name__ == '__main__':
    pytest.main(["-vs","test_py18.py"])

"""
结果：
G:\Python38\python.exe E:/ProjectStudy/HDCZU_Study/Test/test_py18.py
============================= test session starts =============================
platform win32 -- Python 3.8.0, pytest-6.2.2, py-1.10.0, pluggy-0.13.1 -- G:\Python38\python.exe
cachedir: .pytest_cache
rootdir: E:\ProjectStudy\HDCZU_Study\Test
plugins: forked-1.3.0, parallel-0.0.10, xdist-2.2.1
collecting ... collected 3 items

test_py18.py::test_add[1-2-3] 1-2->3
PASSED
test_py18.py::test_add[4-5-9] 4-5->9
PASSED
test_py18.py::test_add[he-llo-hello] he-llo->hello
PASSED

============================== 3 passed in 0.11s ==============================

Process finished with exit code 0

"""

#coding=utf-8
import pytest
'''
pytest参数化
'''

def add(a,b):
    return a+b

#如果是单个参数，则参数化不需要[[ ], [ ]]或者[(),()]，只需要一层[ ]或( )
@pytest.mark.parametrize(
    'a',
    (1,2,3,4,5),
)

#单个参数的情况
def test_add(a):
    assert add(a,1)==a + 1

if __name__ == '__main__':
    pytest.main(["-vs","test_py18.py"])
"""
结果：
G:\Python38\python.exe E:/ProjectStudy/HDCZU_Study/Test/test_py18.py
============================= test session starts =============================
platform win32 -- Python 3.8.0, pytest-6.2.2, py-1.10.0, pluggy-0.13.1 -- G:\Python38\python.exe
cachedir: .pytest_cache
rootdir: E:\ProjectStudy\HDCZU_Study\Test
plugins: forked-1.3.0, parallel-0.0.10, xdist-2.2.1
collecting ... collected 5 items

test_py18.py::test_add[1] PASSED
test_py18.py::test_add[2] PASSED
test_py18.py::test_add[3] PASSED
test_py18.py::test_add[4] PASSED
test_py18.py::test_add[5] PASSED

============================== 5 passed in 0.09s ==============================

Process finished with exit code 0

"""

读取yml文件参数化

#coding=utf-8
import pytest
import yaml

def add(a,b):
    return a+b


"""
读取yaml文件参数化
testYaml.yml内容
- [1,2,3]
- [4,5,9]
- ["he","llo","hello"]

读取后的结果：
[[1, 2, 3], [4, 5, 9], ['he', 'llo', 'hello']]
"""
with open("testYaml.yml","r") as f:
    data=f.read()
    resultList=yaml.load(data,Loader=yaml.FullLoader)
    print(resultList)

@pytest.mark.parametrize(
    'a,b,result',
     resultList
)

#测试用例的传参或者引用参数名必须是上述参数化的的变量名，预期结果引用必须是上述参数化的预期结果变量名
def test_add(a,b,result): #a,b,result接收装饰器传入的数据
    print("{0}-{1}->{2}".format(a,b,result))
    assert add(a,b)==result


if __name__ == '__main__':
    pytest.main(["-vs","test_py18.py"])

"""
platform win32 -- Python 3.8.0, pytest-6.2.2, py-1.10.0, pluggy-0.13.1 -- G:\Python38\python.exe
cachedir: .pytest_cache
rootdir: E:\ProjectStudy\HDCZU_Study\Test
plugins: forked-1.3.0, parallel-0.0.10, xdist-2.2.1
collecting ... [[1, 2, 3], [4, 5, 9], ['he', 'llo', 'hello']]
collected 3 items

test_py18.py::test_add[1-2-3] 1-2->3
PASSED
test_py18.py::test_add[4-5-9] 4-5->9
PASSED
test_py18.py::test_add[he-llo-hello] he-llo->hello
PASSED

============================== 3 passed in 0.09s ==============================
"""

参数化标记参数

参数化，标记参数：
#coding=utf-8
import pytest

@pytest.mark.parametrize(
    'test_input,expect',
    [("3+5",8),
     ("2+4",6),
    pytest.param("6*9",42,marks=pytest.mark.xfail),
    pytest.param("6*6",36,marks=pytest.mark.skip),
    ]
)
def test_param(test_input,expect):
    assert eval(test_input) == expect

if __name__ == '__main__':
    pytest.main(["-s","test_param.py"])
    
"""
结果：
collected 4 items

test_param.py ..xs

=================== 2 passed, 1 skipped, 1 xfailed in 0.30s ===================
"""