In this API Testing 101 post, we will talk about the following:
- What is API Testing?
- Why should you test your API
- API Testing Types
- Benefits of API Testing
What is API Testing?
Simply, API Testing is testing the application programming interfaces (APIs) to ensure that the programming interfaces are functional, reliable, perform their job, and secure.
Why should you test your API
There are many reasons to test API. Some of these reasons are:
→ To ensure it works as it is supposed to.
→ To ensure it works in all types of devices.
→ To discover problems exist in the API
API Testing Types
There are many types of API Testing. Some of them are listed below:
→ Functionality testing
This test ensures that the API works as it is supposed to.
→ Reliability testing
To ensure that the API can be connected consistently and lead to consistent results.
→ Load testing
Ensures that the API can handle large amount of calls
→ Creativity testing
Ensures that the API can work in many different ways.
→ Security testing
To ensure that the API met the defined security requirements.
→ Proficiency testing
To ensure that the API increases what developers are able to do.
→ API documentation testing
Ensures that the API documentation can guide the user easily. AKA. Discovery testing.
→ Negative Testing
Predicting any wrong input from the user.
Benefits of API Testing
→ Time efficiency
API Testing provides fast test results since it can work without the Graphical user interface (GUI). So, in this case you can discover issues faster and fix them.
→ Reduce cost
This point is related with the previous point, and that because discovering issues faster can decrease the cost of security and other issues later on.
→ Improved test coverage
API Testing does not test a one component functionality inside one software, instead, it tests the software as a whole to ensure all components are functioning.
In this post, we have talked about what API Testing is, why you should test your API, its types, and its benefits. As you can see after the readings, API testing, depending on the job role or department or unit, you’re exactly involved in the API testing, maybe difference, and so do the tool to use will be different due to the pick up of the tool should be related to your own job, department or unit role. Of course, it also has the scenario to deploy a single unified tool for all the unit and department to use the same tool, it works for some enterprises, but may not be optimized for some, due to the nature of the workflow. The best tool in one eye, may not be the same for others who have different scope of work and deliverables.
We hope the post helps to land you into API testing so we can write different topics in the scope of API testing for the audience, in follow up posts. Feel free to contact E-SPIN for API Testing solution, whether it is point solution or end to end to be used together with others for the bigger scope of works and workflow automation, from development testing, service virtualization to comprehensive security testing and penetration testing.