How to Perform API Testing in Various IDE?

Tips for Performing API Testing

These are some tips for performing API testing:

How to Conduct the Process of API Testing?

API testing flow is quite simple, with three main steps:

1. Send the request with the necessary input data.
2. Get the response having output data.
3. Verify that the response returned as expected in the requirement.

We will see all these steps in the examples below:

API testing with VS code

For API testing in VS Code, we use the Thunder Client extension in VS code:

The following steps are there to use Thunder Client in VS code:

1️⃣ Open your visual studio code, search for thunder client, and install it.

2️⃣ A thunder icon will be shown on the left side of the screen. Click on the icon to start working with the thunder client.

3️⃣Initially, we can test it with a default endpoint, through which you can send a GET request. 

You will get a JSON response that provides basic information about the Thunder Client extension.

4️⃣ We can take a random API and test it. To test, let us check ResponseCode, ResponseBody, ResponseTime, etc.

• ResponseCode - HTTP response codes are three-digit codes generated by a server in response to a client's browser-side request. 
• ResponseBody informs a controller that the returned object is automatically serialized into JSON and returned to the HttpResponse object.
• ResponseTime- The time it takes to convey the inquiry, processes it by the computer, and convey the response back to the terminal.

5️⃣ The results of the above test cases are here in Results.

API testing with Net beans 

Since we are going to work on NetBeans, let us first learn about some related terms like Junit, which is a testing framework, Gradle, and Netbeans.

What is Net Beans?

NetBeans is the integrated development environment for Java programming language. NetBeans runs on various platforms like macOS, Windows, Linux, and Solaris.

Junit

JUnit is one of the popular Java unit testing frameworks. It is an open-source framework used to write and run repeatable automated tests.

Gradle

It is a build automation tool well known for its flexibility and ease of building software. It is similar to maven. This automation tool is used to automate the creation of various applications. 

Required Java Library

👉Since we will use an external Java library such as Junit, make sure to add dependencies in your build.gradle file.

build.gradle
dependencies {
testImplementation(platform('org.junit:junit-bom:5.9.1'))
testImplementation('org.junit.jupiter:junit-jupiter')
     testImplementation group: 'io.rest-assured', name: 'rest-assured', version: '5.3.0'
}

Note - For the latest version, visit the maven repository.

👉 Make a java class in the Test package.

👉Name it TestAPI.java

Note - For the latest version, visit the maven repository. 

Now write the following code and run your gradle test run. 

TestAPI.java

package com.package;
import org.junit.jupiter.api.Test;
import io.restassured.RestAssured;
import io.restassured.response.Response;
class TestAPI {
@Test
public void get_test(){
	Response response = RestAssured.get("https://reqres.in/api/users?page=2");
	System.out.println(response.getStatusCode());
	System.out.println(response.getTime());
	}
}

👉 Now run the program

Output - Test Results

Output - Test

Frequently Asked Questions

What does API testing mean?

To ensure that an application program interface (API) meets the requirements for functionality, security, performance, and reliability, it is tested using a technique called API testing.

Which IDE is the fastest for Java?

One of the most popular IDEs for computer programming is Eclipse. NetBeans is a well-known open-source IDE for Java, and IntelliJ IDEA is a Java-based integrated development environment.

Can we download NetBeans for free?

NetBeans IDE is a free and open-source combined development environment to develop applications on the Windows, Mac, Linux, and Solaris operating systems.

How do we run code tests in Visual Studio Code?

Tests can be executed or run from Test Explorer by right-clicking a test in the code editor, selecting a Run test, or using Visual Studio's default Test Explorer shortcuts.

Conclusion

This article discusses how to perform API testing in various IDE. We have covered API testing in this article. We hope this article helps you enhance your knowledge of VS code and other IDE. We suggest you to check out our other articles to learn more about VS code.

• Sanity Testing vs Smoke Testing
• API Testing.
• Visual Studio Code Setup for C++.
• Thunder Client - a Solution for Postman in VS Code.

We hope you have gained a better understanding of this topic now! Are you planning to ace the interviews with reputed product-based companies like Amazon, Google, Microsoft, and more? Attempt our Online Mock Test Series on Coding Ninjas Studio now!

Happy Learning!!