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Tool Java_Library:RestAssured

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Rajendra Prasad Reddy Penumalli edited this page Mar 21, 2020 · 2 revisions

RestAssured - Class library

  • Popular and Widely used java library for RestAPI Automation
  • We can utilize the advantages of Java or Groovy
  • Doesn’t have any limitations and can be combined with different frameworks.
  • Easy integration with existing framework and customization
  • Library provides an option of :
    • writing any tests
    • performing any manipulations with data during the testing process leaving tests independent
Advantages:
  • Opportunity to apply ready-made tools without connecting additional libraries.
  • Comprehensive documentation is available on Github.
  • Extensive testing options in combination with different frameworks for testing and reports building.
  • Tests writing in the form of code using Java or Groovy with an option to update, improve the code’s quality or the number of tests.
  • Independence from the platform or development environment.
Disadvantages:
  • The necessity of having a basic knowledge of Java, Groovy, Maven and the experience of working with dependencies, command line and IDE.
  • Code quality and time necessary for compilation directly impact test running speed.
  • No GUI as for Postman and Katalon Studio.
  • A tester has to connect and set up additional tools for reports building.
  • It will take some time to check general API working efficiency and spend time on test writing.
Language Support:
  • Java or Groovy
Library Combinations-1:
  • RestAssured
  • TestNG
  • GSON
  • Log4j
Library Combinations-2:
  • RestAssured
  • Junit
  • GSON
  • Log4j
GET Request
import org.testng.annotations.Test;
import io.restassured.RestAssured;
import io.restassured.http.Method;
import io.restassured.response.Response;
import io.restassured.specification.RequestSpecification;
 
public class SampleAPITest {
 
 @Test
 public void GetEmpDetails()
 {   
    RestAssured.baseURI = "http://192.168.20.150:3000";
    RequestSpecification request = RestAssured.given();
    request.header("Content-Type", "application/json");
    
    Response response = request.get("/employees/1");
    String responseBody = response.getBody().asString();
    System.out.println("Response Body is =>  " + responseBody);
 }
}
POST Request
public class SampleAPITest {
 
 @Test
 public void PostEmpDetails()
 {   
   RestAssured.baseURI = "http://192.168.20.150:3000";
   RequestSpecification request = RestAssured.given();
   request.header("Content-Type", "application/json");

   JSONObject requestParams = new JSONObject();
   requestParams.put("name", "Rajendra"); 
   requestParams.put("salary", "20000")

   request.body(requestParams.toJSONString());
   Response response = request.post("/employees");

   String responseBody = response.getBody().asString();
   System.out.println("Response Body is =>  " + responseBody);

   int statusCode = response.getStatusCode();
   Assert.assertEquals(statusCode, "201");
   String successCode = response.jsonPath().get("SuccessCode");
   Assert.assertEquals( "Correct Success code was returned", successCode, "OPERATION_SUCCESS");
 }
 
}
PUT Request
public class SampleAPITest {
 
 @Test
 public void PutEmpDetails()
 { int empid=122;  
   RestAssured.baseURI = "http://192.168.20.150:3000";
   RequestSpecification request = RestAssured.given();
   request.header("Content-Type", "application/json");

   JSONObject requestParams = new JSONObject();
   requestParams.put("name", "Rajendra"); 
   requestParams.put("salary", "21000")
 
   request.body(requestParams.toJSONString());
   Response response = request.put("/employees/"+ empid);

   int statusCode = response.getStatusCode();
   System.out.println(response.asString());
   Assert.assertEquals(statusCode, 200);
}
}
DELETE Request
public class SampleAPITest {
 
 @Test
 public void DeleteEmpDetails()
 { int empid=122;  
   RestAssured.baseURI = "http://192.168.20.150:3000";
   RequestSpecification request = RestAssured.given();
   request.header("Content-Type", "application/json"); 

   Response response = request.delete("/employees/"+ empid);
   int statusCode = response.getStatusCode();
   System.out.println(response.asString());
   Assert.assertEquals(statusCode, 200);
 
   String jsonString =response.asString();
   Assert.assertEquals(jsonString.contains("successfully! deleted Records"), true);
 }

}

Request with Query params

public class SampleAPITest {
 
 @Test
 public void GetEmpDetails()
 {   
    RestAssured.baseURI = "http://192.168.20.150:3000";
    RequestSpecification request = RestAssured.given();
    request.param("name", "rajendra").param("age", "15");
    request.header("Content-Type", "application/json");
    
    Response response = request.get("/employees/1");
    String responseBody = response.getBody().asString();
    System.out.println("Response Body is =>  " + responseBody);
 }
}

> Mavenised Rest Assured Project

> Gradle Rest Assured Project

References:

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