Automate Rest API test and integrate this with Continuous Integration(CI-Jenkins)
For automating REST API testing, as a starting point I recommend using Postman and newman.
Postman provides an excellent UI for building requests, and newman is its command-line counterpart. After you create a set of requests and corresponding tests within the Postman UI, you can run the entire collection from Jenkins via newman, preventing a deployment if tests fail.
The RestAssured code you have posted will work just fine for basic cases. It's not necessarily the "right tool" if you want to:
- continuously add new test case and don't have many resources
- propogate alerts with well-formed error messages (especially to places like Slack or GitHub)
- reduce false-positives
- re-use the same tests for monitoring
Building these features takes time and resources which, depending on the size of your team may or may not be a good call.
Some of the commercial solutions you posted can solve some of these problems for you.
Assertible is a codeless solution that supports the workflow you described directly: https://assertible.com/blog/automated-api-testing-with-jenkins
We can integrate Jenkins and JMeter for automating RestAPI testing.
The reason for that is,
In Jenkins we can schedule our tests/builds in whichever way(every minute/hour/day/month.....) or based on the commits etc..
we can bundle n number of APIs together in JMeter and execute in a single test.(Maintaining is easy)
- There is a jenkins plugin "Performance" which can be used to check the response time for each API call, which compares the response time with respect to the previous response times.
- JMeter has an in-build threading feature, which helps execute tests much faster than any single threaded tests.
Screenshots:
Steps
We can prepare our APIs in JMeter
Configure the tests in non GUI Mode in Jenkins.
Install and Configure the Performance plugin in Jenkins.