httprunner学习3-extract提取token值参数关联

  • 2019 年 10 月 6 日
  • 筆記

前言

如何将上个接口的返回token，传给下个接口当做请求参数?这是最常见的一个问题了。 解决这个问题其实很简单，我们只需取出token值，设置为一个中间变量a，下个接口传这个变量a就可以了。那么接下来就是解决两个问题：

  • 如何取出token值？
  • 如何参数关联？

场景案例

我现在有一个登陆接口A,登陆成功后返回一个token值。有一个获取绑定卡号的接口B，但是接口B必须要先登录后传登录的token才能访问 A接口登录接口文档基本信息

  • 访问地址：http://127.0.0.1:8000/api/v1/login/
  • 请求类型：POST
  • 请求头部：application/json
  • 请求参数：{“username”:”test”, “password”:”123456”}

B接口获取绑定卡号的接口文档基本信息

  • 访问地址：http://127.0.0.1:8000/api/v1/user/info/
  • 请求类型：GET
  • 请求头部：Content-Type: application/json
  • 请求头部token参数：Authorization: Token xxxxx login token xxxxx

先不带token去访问接口B，使用命令行工具httpie测试接口

C:Usersdell>http http://127.0.0.1:8000/api/v1/user/info/  HTTP/1.1 401 Unauthorized  Allow: GET, POST, HEAD, OPTIONS  Content-Length: 58  Content-Type: application/json  Date: Sat, 21 Sep 2019 14:06:15 GMT  Server: WSGIServer/0.2 CPython/3.6.0  Vary: Accept  WWW-Authenticate: Token  X-Frame-Options: SAMEORIGIN{  "detail": "Authentication credentials were not provided."  }

不带token会提示没权限访问：401 Unauthorized

接口测试

先使用接口测试工具测试下，用postman,或者fiddler都可以，我这里为了查看报文信息方便，用httpie命令行工具

先访问接口A获取token值234af73571da46ade79ea6a74961b1d23d609b79

D:>http http://127.0.0.1:8000/api/v1/login/ username=test password=123456 -v  POST /api/v1/login/ HTTP/1.1  Accept: application/json, */*  Accept-Encoding: gzip, deflate  Connection: keep-alive  Content-Length: 42  Content-Type: application/json  Host: 127.0.0.1:8000  User-Agent: HTTPie/1.0.3{  "password": "123456",  "username": "test"  }HTTP/1.1 200 OK  Allow: POST, OPTIONS  Content-Length: 109  Content-Type: application/json  Date: Sat, 21 Sep 2019 15:37:06 GMT  Server: WSGIServer/0.2 CPython/3.6.0  Vary: Accept, Cookie  X-Frame-Options: SAMEORIGIN{  "code": 0,  "msg": "login success!",  "token": "234af73571da46ade79ea6a74961b1d23d609b79",  "username": "test"  }

传给下个接口B

D:>http http://127.0.0.1:8000/api/v1/user/info/ Authorization:"Token b7e02c959fbae4c2a0d9094f6f9b9a35fa8aaa1e" -v  GET /api/v1/user/info/ HTTP/1.1  Accept: */*  Accept-Encoding: gzip, deflate  Authorization: Token b7e02c959fbae4c2a0d9094f6f9b9a35fa8aaa1e  Connection: keep-alive  Host: 127.0.0.1:8000  User-Agent: HTTPie/1.0.3HTTP/1.1 200 OK  Allow: GET, POST, HEAD, OPTIONS  Content-Length: 96  Content-Type: application/json  Date: Sat, 21 Sep 2019 16:04:25 GMT  Server: WSGIServer/0.2 CPython/3.6.0  Vary: Accept  X-Frame-Options: SAMEORIGIN[  {  "age": 20,  "create_time": "2019-09-15",  "id": 1,  "mail": "[email protected]",  "name": "yoyo",  "sex": "M"  }  ]

传头部参数用xx:xxxx格式，中间用冒号:，如：User-Agent:demo-agent/1.0 'Cookie:a=b;b=c',由于Authorization参数中间有空格，用双引号包起来

extract提取token

提取登录接口返回的token值，使用extract提取器

    extract:  - token: content.token

下个接口的用例引用token参数使用$token,完整的用例test_info.yml如下

# 上海悠悠，QQ交流群：750815713  - config:  name: logincase  variables: {}  - test:  name: login case1  request:  url: http://127.0.0.1:8000/api/v1/login/  method: POST  headers:  Content-Type: application/json  User-Agent: python-requests/2.18.4  json:  username: test  password: 123456  extract:  - token: content.token         # 提取token  validate:  - eq: [status_code, 200]  - eq: [headers.Content-Type, application/json]  - eq: [content.msg, login success!]  - eq: [content.code, 0]  # 上海悠悠，QQ交流群：750815713  - test:  name: get user info case1  request:  url: http://127.0.0.1:8000/api/v1/user/info/  method: GET  headers:  Content-Type: application/json  User-Agent: python-requests/2.18.4  Authorization: Token $token          # 引用token  validate:  - eq: [status_code, 200]  - eq: [headers.Content-Type, application/json]  - eq: [content.0.age, 20]  - eq: [content.0.name, yoyo]  - eq: [content.0.mail, [email protected]]

运行用例

hrun test_info.yml

D:softuntitled>hrun test_info.yml  login case1  INFO     POST http://127.0.0.1:8000/api/v1/login/  INFO     status_code: 200, response_time(ms): 516.0 ms, response_length: 109 bytes  INFO     start to extract from response object.  INFO     start to validate.  .  get user info case1  INFO     GET http://127.0.0.1:8000/api/v1/user/info/  INFO     status_code: 200, response_time(ms): 188.8 ms, response_length: 96 bytes  INFO     start to validate.  .----------------------------------------------------------------------  Ran 2 tests in 0.713sOK  INFO     Start to render Html report ...  INFO     Generated Html report: D:softuntitledreports1569079832.html

查看report报告

打开report目录下生成的报告文件

打开报告详情，可以看到token引用成功了

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