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As I look into writing automation frameworks at the API layer(relatively new to this area), a question that keeps cropping up in my mind is.....why should I write an automation framework at code level in C#(with RestSharp) or Java(RestAssured), as opposed to using a tool like Postman or SoapUI and utilising what they have to create a framework?
What would be the pro's and con's of each?
👍Pros of coding:
- You can easily integrate your test into CI process
- You can code any assertion logic you need in your tests
- You can utilize any library that is suitable for your chosen coding platform
- You can flexibly manage your test data
- You can build whatever test report you want
👎Cons of coding:
- It requires coding skills
👍Pros of tools:
- They doesn't require coding skills at all or requires less coding skills
- They have user-friendly interface
- They are intended to address some general issues of API testing (see cons) so there are a lot of people who can help you with your problems
👎Cons of tools:
- They are intended to address some general issues of API testing so you wouldn't likely be able to introduce more or less complicated logic of your test
- This is not trivial to integrate the tools into CI
- Usually tools have their reporting standard that cannot be changed or you're limited in the changes
- You either are not able to extend tool functionality or limited in the extension by the existing plugins
