API Testing in Telegu || How To Add Assertions Using JavaScript Objects and Snippets ?

Understanding How to Add Assertions Using JavaScript Objects and Snippets - Explained in Telugu

In this tutorial, we delve into the process of adding assertions using JavaScript objects and snippets. Assertions are crucial for testing the behavior of your code and ensuring its correctness. We'll explore various status codes commonly encountered, focusing on how to handle them effectively.

Status Codes:
Status codes are vital indicators of the response from a server. They are divided into several categories:

Success Codes (2xx): Indicate that the request was successfully received, understood, and accepted.
Client Error Codes (4xx): Occur when there is an issue with the client's request. Common examples include invalid input or unauthorized access.
Server Error Codes (5xx): Indicate problems on the server side, such as server overload or internal errors.
Examples of Status Codes:

GET-200 OK: Successful retrieval of requested data.
PUT-200/201/202: Successful update or creation of resources.
POST-201 Created: Resource successfully created.
DELETE 200/204: Successful deletion of resources.
Server-side errors include:

500 - Internal Server Error: Indicates a general server error.
503 - Service Unavailable: Server unable to handle the request due to temporary overload or maintenance.
Client errors include:

400 - Bad Request: The server cannot process the request due to malformed syntax or invalid parameters.
404 - Not Found: The requested resource could not be found on the server.
403 - Forbidden: Access to the requested resource is forbidden.
Key Concepts:
Understanding status codes, status lines, headers, bodies, and response times is essential for effective testing.

Chai BDD Assertions:
We demonstrate how to use Chai BDD assertions like to, have, include, expect, same, not, and be to validate responses effectively.

Sample Tests:
We provide sample tests using Postman scripts to validate various aspects of the response, including status, headers, and body content.

Ensure status is correct.
Validate headers.
Check for specific content within the response body.
Verify the entire response body against expected values.
By mastering these techniques, you'll be better equipped to ensure the reliability and correctness of your JavaScript applications.