Share Tutorial: Search for images in the site and check for invalid images.

Currently in the group test new students often do not know how to learn their own coding knowledge and test scenarios actually combined, here take 1 practical examples, analysis of the process.

• Get 1 Test requirements that need to be coded, how to do it

Testing requirements: The company's website is a lot of product images are invalid links, check the search out, for further processing.

First, think: What do you want to do next?

1. Idea: Search out all image links-----> Access these links to view response-------> HTTP Code non 200 for invalid links
2. What language: The current popular language Java,python, can do, finally choose Python, processing similar crawler work, Python is relatively simple and convenient, and a lot of libraries.
3. Do not know the Python library: View the Classic library HTTPS://GITHUB.COM/JOBBOLE/AWESOME-PYTHON-CN, find processing HTTP requests, or direct Baidu/google search python URL

Second, how to find all the pictures in the site link

2. Open the company's Web site, right----to view the site source code, will come out a lot of HTML code; We're just going to link the images inside.
4. Code: Output The source code of the website to buffer, and then proceed with it.

6. View the picture link inside: You can observe the main form of the picture link: style= "width:100%" src= "/http Zcy-item.img-cn-hangzhou.aliyuncs.com//2017062111022565214060.png ">
8. Search by Regular expression: ""
10. Code

    Import re# Regular expression module imagelist = Re.findall (R "" "
    Output: [' http://zcy-item.img-cn-hangzhou.aliyuncs.com//2017060816344209047406.png ', '/HTTP Zcy-item.img-cn-hangzhou.aliyuncs.com//2017111717221734892422.gif ' ... ]
    

14. Not to be continued

Share Tutorial: Search for images in the site and check for invalid images.