The primary goal of API testing is code-level testing of both the application and the API. A full, organized suite of testing will verify the individual parts of each method, class, and package within the API, ensure security of the application’s code, and confirm the expected interaction between the API layer and the application. Grow your test toolkit by pairing this API testing tutorial with our blog post about API testing advantages.
Compared with graphical user interface (GUI) testing, application programming interface (API) testing provides several key advantages, each of which can improve the coverage of your test cycle, conserve resources, and result in faster, more efficient releases. Based on your project timeline, integration requirements, and desired functionality, API testing is usually a worthwhile approach when testing your application in-house or with an offshore QA team. Four key advantages of API testing include: