使用行为

Question

我有一个django rest API端点登录，它以json对象的形式获取用户名和密码，如下所示。

   {
      username: email,
      password: password,
   }

并返回包含标记

的json对象

{
   token : 0234jh324234j2hiy342
}

现在我想在行为中写一个测试。我有以下功能文件。

Feature: Login User
  By providing different credentials we check if our login API end point is working as expected or not

  Scenario: Login User by Providing Authentication Credentials
    Given I provide user authentication credentials
    Then I must get a reponse with status code 200 and a jSon object with token

以下是我的auth.py文件

from behave import *
import requests
import json


@given('I have user authentication credentials')
def set_impl(context):
    url = 'https://example.com/v1/login'
    headers = {'content-type': 'application/json'}
    body = {
        "username": "xyz@email.com",
        "password": "abcdef123",
    }


@when('I make an http post call')
def step_impl(context):
    context.res = requests.post(url, data=json.dumps(body), headers=headers)


@then('I must get a reponse with status code 200 and a jSon object with token')
def step_impl(context):
    assert context.res.status == 200

我无法从@when decorator中的@given装饰器访问url，header和body。我如何检查json以回应我预期的json。

Answer 1

Per @ KlausD。建议，您应该将变量添加到行为的context对象中。我已经编辑了代码，将变量添加为context对象的属性。

from behave import *
import requests
import json


@given('I have user authentication credentials')
def set_impl(context):
    context.url = 'https://example.com/v1/login'
    context.headers = {'content-type': 'application/json'}
    context.body = {
        "username": "xyz@email.com",
        "password": "abcdef123",
    }


@when('I make an http post call')
def step_impl(context):
    context.res = requests.post(context.url, data=json.dumps(context.body), headers=context.headers)


@then('I must get a reponse with status code 200 and a jSon object with token')
def step_impl(context):
    assert context.res.status == 200

至于根据预期的JSON检查响应中的JSON ......

1. 查看requests软件包的response对象here，了解如何获取response对象的属性。

2. 通过open()打开您自己预期的JSON文件，获取与token键对应的值，然后执行assert expectedToken == responseToken或类似的事情。