（十）fixture

1、查看fixture的执行过程

pytest  --setup-show  

2、conftest
待测试程序

def bubble_sort(nums):
    for i in range(len(nums)-1):
        for j in range(len(nums)-i-1):
            if nums[j]> nums[j+1]:
                nums[j],nums[j+1] = nums[j+1],nums[j]
    # return random.choice([nums,None,10])
    return nums

conftest中的代码

@pytest.fixture(scope= "module")
def bubble_sort_001():
    m = [[1, 2, 3, 4, 5, 10, 20, 30, 40, 50], [None], [10]]
    n = bubble_sort([10, 1, 20, 2, 30, 3, 40, 4, 50, 5])
    return  m,n

用例中的代码

def test_bubble_sort(bubble_sort_002):
    print("beginning")
    assert bubble_sort_002[0] == bubble_sort_002[1]
    print("ending")

3、confest中使用yield（相当于setup和teardown)

@pytest.fixture(scope= "module",params=[[1, 2, 3, 4, 5, 10, 20, 30, 40, 50], [None], [10]])
def bubble_sort_002(request):
   m = request.param
   n =  bubble_sort([10, 1, 20, 2, 30, 3, 40, 4, 50, 5])
   # return  m,n
   print("yield 之前 ：配置环境变量")
   yield m,n
   print("yield 之后 ：清除数据")

4、fixture参数化

@pytest.fixture(scope= "module",params=[[1, 2, 3, 4, 5, 10, 20, 30, 40, 50], [None], [10]])
def bubble_sort_002(request):
   m = request.param
   n =  bubble_sort([10, 1, 20, 2, 30, 3, 40, 4, 50, 5])
   # return  m,n
   print("yield 之前 ：配置环境变量")
   yield m,n
   print("yield 之后 ：清除数据")