What is API Test Automation ? How to Test ?

What is API Testing?

To begin, Application Programming Interface(API)?testing is a type of software testing that aims at validating the API Test Automation. It determines whether the APIs meet the expectations in terms of functionality, performance, reliability and security for an application.

Most importantly,API tests mainly concentrate on the business logic layer of the software. It does not concentrate on the look and feel of an application. Instead of using standard user inputs -keyboard and outputs, API Test Automation uses software to send calls to the API, get output and the system’s response.

Set-up of API Test Environment

A test environment is a stack of technologies used for?testing.

• Use Testing Tool
• Write own codes

Use the following:

• Frisby.js?- JavaScript-based API testing framework
• REST-assured
• Cypress.io?- free front-end testing tool that has built-in features for API testing.
• Postman?tool was developed specially for API testing with asses to many assertions and easy syntax.

Points to be noted

• Set up an initial environment that invokes API with a required set of parameters and then examine the test result.
• Configure the Database and server.
• Once the installation is done, call the API Function to check whether that API is working.

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