如何在Allure装饰器中传入变量以丰富测试报告数据？

1. 测试函数装饰器场景 #

@allure.step装饰器是在函数定义阶段解析的，没法直接拿到函数执行时才传入的expected变量，以下两种方式可以解决：

方式一：利用装饰器的自动参数匹配 #

Allure的@allure.step支持直接使用函数参数名作为占位符，若测试数据能拆为单独参数，直接写参数名即可：

import allure

@allure.title("Do that")
@allure.step("Make sure that some_param == {expected}")
def test_1(expected, real):
    assert expected == real

如果必须保留data_for_test作为参数，也可以直接通过索引访问参数内的元素：

import allure

@allure.title("Do that")
@allure.step("Make sure that some_param == {data_for_test[0]}")
def test_1(data_for_test):
    expected, real = data_for_test
    assert expected == real

方式二：在函数内部使用动态步骤 #

要是觉得装饰器里写索引不够直观，也可以把步骤逻辑移到函数内部，用f-string动态拼接描述：

import allure

@allure.title("Do that")
def test_1(data_for_test):
    expected, real = data_for_test
    with allure.step(f"Make sure that some_param == {expected}"):
        assert expected == real

2. with代码块场景 #

这个场景直接用Python的f-string格式化字符串就能插入变量，some_var在执行with语句时已经定义，可直接读取：

def some_func():
    some_var = "qwe"
    with allure.step(f"Some text with some {some_var}"):
        pass

内容的提问来源于stack exchange，提问作者bananacatsky