Hi Folks, In Today Blog We will take a look into Introduction To Rest Assured so without any delay, Let’s Start
What is Rest Assured
REST stands for REpresentational State Transfer
It is a java library used for testing and validating the Restful Web Services
It supports Behavior-Driven Development(BDD) syntax like Given, When, and Then notations
It helps us to integrate with testing frameworks like Junit or TestNG
How the Rest Assured Works
Create an HTTP request with all the details
Send the request over the network
Validate the received Response
API Testing With Rest Assured Framework
During the development of an application, the RestAssured Framework assists in assessing and identifying errors
It is necessary to have knowledge of an IDE, Maven, and frameworks such as TestNG, or JUnit in order to use RestAssured Framework for API Automation Testing
The most common way to test REST APIs is with automation, as it helps interpret results more effectively
Rest API uses five HTTP methods for requesting commands as listed below:
GET: Retrieves information from a specific URL
PUT: Updates previous resources or creates new information at the specified URL
PATCH: Partial updates
POST: Develops a new entity and used to send information to the server for uploading files or information
DELETE: Deletes the present representation at a particular URL
Advantages:
REST is open source
It authenticates & justifies the response of the requests like “get”, “put”, “patch”, “delete”
Firstly, It provides a Given/When/Then test annotation, which immediately makes your tests simple enough to understand
It supports CI/CD integration
It can used with any customized/open-source reporting tool
It can easily integrated with JUnit and TestNG frameworks
Disadvantages:
It requires prerequisite knowledge of the Java programming language
It does not support SOAP APIs explicitly
It has an inbuilt reporting feature
REST Assured is not purely thread-safe
Syntax:
The syntax of Rest Assured given below. It follows Behavior Driven Development (BDD)
Further, BDD is an approach that defines the behavior of a feature characteristic through instances in plain text
Code Description
Given() = ‘Given’ is a keyword that allows you to set a background. You pass the request headers, body, query, path parameters, and cookies
When() = ‘When’ is a keyword that tells you the scenario. For example, when a user gets a request like get or post or put something or do something else
Method() = Replace this with any of the CRUD operations (get/post/put/delete)
Then() = It includes the conditions like assert and matcher
Prerequisites for REST API End to End Test
Java Setup
IDE Setup
Maven Setup
Create a maven project
Add Rest Assured Dependencies
Setup Maven Compiler Plugin
Create a user for the test
Conclusion
Rest Assured is a very significant framework to write tests against a REST API
Rest Assured is a collection of Java libraries that entitles us to automate Rest API testing
Rest Assured is a Java-based concept
It helps retrieves values of request and response from complicated JSON structures
The API request can be altered with a diversity of header, query, path param, and any session or cookies to be set
It helps set assert statements and conditions
Rest Assured is very attainable in the condition where the response is JSON type, its methods may not work consistently if the content type is HTML or plain text
So this is blog for covering the Introduction To The Rest Assured.
I hope you enjoyed it and it helped you!! stay connected for more interesting blogs.