httprunner学习2-har2case录制生成脚本
前言
复制毁一生，录制穷三代，如果你只是因为不想写脚本，而去录制脚本，那我建议你还是别学录制了。
录制脚本，只是一个过渡，从0到1的一个过渡，如果让你直接写脚本，你会无从下手，可以将录制的脚本快速转化成httprunner脚本文件。
har2case可以将.har文件转化成yaml格式或者json格式的httprunner的脚本文件，生成.har格式文件可以借助fiddler或Charles抓包工具。
环境准备
如果你已经安装过httprunner，那应该是自带了har2case包，如果没有的话，可以用pip安装
pip install har2case==0.3.1
查看版本号
har2case -V
0.3.1
-h查看帮助选项
C:\Users\dell>har2case -h
usage: har2case [-h] [-V] [--log-level LOG_LEVEL] [-2y] [-fmt FMT_VERSION]
[--filter FILTER] [--exclude EXCLUDE]
[har_source_file]
Convert HAR(HTTP Archive) to YAML/JSON testcases for HttpRunner.
positional arguments:
har_source_file Specify HAR source file
optional arguments:
-h, --help show this help message and exit
-V, --version show version
--log-level LOG_LEVEL
Specify logging level, default is INFO.
-2y, --to-yml, --to-yaml
Convert to YAML format, if not specified, convert to
JSON format by default.
-fmt FMT_VERSION, --format FMT_VERSION
Specify YAML/JSON testcase format version, v2
corresponds to HttpRunner 2.2.0+.
--filter FILTER Specify filter keyword, only url include filter string
will be converted.
--exclude EXCLUDE Specify exclude keyword, url that includes exclude
string will be ignored, multiple keywords can be
joined with '|'
Fiddler抓包生成.har文件
以登录接口为案例，登录接口相关文档信息如下：
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”}
在Fiddler上发送接口请求后，抓包如下
抓到这个请求后，右上角File->Export Sessions->Selected Sessions->Select Export Format->勾选HTTPArchive v1.1
勾选HTTPArchive v1.1类型后，下一步导出为test_login_demo.har文件
har2case转yaml格式脚本
接下来将刚才生成的test_login_demo.har文件，使用har2case转成yam格式的脚本文件
har2case test_login_demo.har -2y
-2y参数是设置转成.yml格式的脚本，如果不加这个参数，默认转成json格式
D:\>har2case test_login_demo.har -2y
INFO:root:Start to generate testcase.
INFO:root:dump testcase to YAML format.
INFO:root:Generate YAML testcase successfully: test_login_demo.yml
查看刚才生的的test_login_demo.yml，内容如下
# 上海悠悠，QQ交流群：750815713
- config:
name: testcase description
variables: {}
- test:
name: /api/v1/login/
request:
headers:
Content-Type: application/json
User-Agent: Fiddler
json:
password: '123456'
username: test
method: POST
url: http://127.0.0.1:8000/api/v1/login/
validate:
- eq:
- status_code
- 200
- eq:
- headers.Content-Type
- application/json
- eq:
- content.code
- 0
- eq:
- content.msg
- login success!
- eq:
- content.username
- test
- eq:
- content.token
- a95b077eb4b884b9186f60a47f37b4746c7c6a60
运行用例
.yml格式脚本生成后，接下来使用hrun运行用例
hrun test_login_demo.yml
D:\>hrun test_login_demo.yml
/api/v1/login/
INFO POST http://127.0.0.1:8000/api/v1/login/
INFO status_code: 200, response_time(ms): 437.79 ms, response_length: 109 bytes
INFO start to validate.
ERROR validate: content.token equals a95b077eb4b884b9186f60a47f37b4746c7c6a60(str) ==> fail
c7dca34cc6ff93049985c44967f132c4146e995e(str) equals a95b077eb4b884b9186f60a47f37b4746c7c6a60(str)
ERROR request:
headers: {'content-type': 'application/json', 'user-agent': 'Fiddler'}
json: {'password': '123456', 'username': 'test'}
ERROR response:
status_code: 200
headers: {'Date': 'Sat, 21 Sep 2019 09:54:57 GMT', 'Server': 'WSGIServer/0.2 CPython/3.6.0', 'Content-Type': 'application/json', 'Vary': 'Accept, Cookie', 'Allow': 'POST, OPTIONS', 'X-Frame-Options': 'SAMEORIGIN', 'Content-Length': '109'}
body: '{"code": 0, "msg": "login success!", "username": "test", "token": "c7dca34cc6ff93049985c44967f132c4146e995e"}'
F
======================================================================
FAIL: runTest (httprunner.task.TestCase)
/api/v1/login/
----------------------------------------------------------------------
Traceback (most recent call last):
File "e:\python36\lib\site-packages\httprunner\task.py", line 27, in runTest
self.test_runner.run_test(self.testcase_dict)
httprunner.exceptions.ValidationFailure
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "e:\python36\lib\site-packages\httprunner\task.py", line 29, in runTest
self.fail(repr(ex))
AssertionError: ValidationFailure()
----------------------------------------------------------------------
Ran 1 test in 0.468s
FAILED (failures=1)
INFO Start to render Html report ...
INFO Generated Html report: D:\reports\1569059697.html
D:\>
你会发现运行用例会失败，打开测试报告，会发现是token校验失败了，因为token每次都是动态生成的，所以token校验不能写死了
解决办法很简单，去掉这个token校验即可
- eq:
- content.token
- a95b077eb4b884b9186f60a47f37b4746c7c6a60
生成json格式脚本
har2case默认生成json格式的脚本，因为个人更喜欢yaml格式，所以json格式写在后面了.
har2case test_login_demo.har
D:\>har2case test_login_demo.har
INFO:root:Start to generate testcase.
INFO:root:dump testcase to JSON format.
INFO:root:Generate JSON testcase successfully: test_login_demo.json
D:\>
生成的test_login_demo.json内容如下
# 上海悠悠，QQ交流群：750815713
[
{
"config": {
"name": "testcase description",
"variables": {}
}
},
{
"test": {
"name": "/api/v1/login/",
"request": {
"url": "http://127.0.0.1:8000/api/v1/login/",
"method": "POST",
"headers": {
"User-Agent": "Fiddler",
"Content-Type": "application/json"
},
"json": {
"username": "test",
"password": "123456"
}
},
"validate": [
{
"eq": [
"status_code",
200
]
},
{
"eq": [
"headers.Content-Type",
"application/json"
]
},
{
"eq": [
"content.code",
0
]
},
{
"eq": [
"content.msg",
"login success!"
]
},
{
"eq": [
"content.username",
"test"
]
},
{
"eq": [
"content.token",
"a95b077eb4b884b9186f60a47f37b4746c7c6a60"
]
}
]
}
}
]
filter和exclude过滤
你可以使用filter参数,过滤url包含xxx.com的内容，如只转包含127.0.0.1的url请求
$ har2case demo.har —filter 127.0.0.1
也可以使用exclude来过滤，除xxx.com以外的内容
$ har2case demo.har—exclude xxxx.com