Benefits of API Automation Testing

Nowadays it's a trend to replace old platforms by using web services. Web services are very light, secure and less time consuming which will help application to transform from bulky and time consuming to a light, secure and time saving database transactions.

All major applications (websites) are using web services. API implementation is easy and helpful for developer also as they can work simultaneously on different modules using micro services. these micro-services are independent enough to handle any CRUD operation as well too easy to integrate with other micro-services. The bundle of these integrated micro-services are capable enough to test all scenarios of end to end flow. The response and request format of APIs may vary and depends on the platform that developers are using. It is always not easy to test all micro-service manually on regular basis and it also requires domain expert engineers so that the possibilities of defect leakage is low. 

By using automation, we need experts only once specially when we need to analyse and writing the scenarios. Once test case writing is done we require a few engineers who will take care of some maintenance and fixes or to log defect. The benefits of automation testing are:

• It will allow us to test individual web-service as well end to end scenarios at the same time.
• API automation will help system to test APIs even in development phase.
• We can schedule a job in Jenkins which will automatically trigger at defined time.
• Auto trigger a smoke job when any deployment is done on any environment.
• It will not required to set environment every time before testing.
• Strictly follow defined web services contract.
• No chance to miss any defect in defined scenarios.
• No man-made mistake
• Improve efficiency of a quality product.
• Leads to a defect free application
• Put an additional layer of regular testing before populating the values on UI
• All APIs like JSON, XML or any other format can be tested easily