How to run SpringBoot project in GitLab CI/CD

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This tutorial explains the process to run the SpringBoot project in the GitLab pipeline. This is a very important step towards achieving CI/CD.

Prerequisite:

  1. SpringBoot Starter Parent – 3.1.0
  2. Rest Assured – 5.3.0
  3. Java 17
  4. Maven – 3.8.6
  5. GitLab Account

Please refer to this tutorial to get the structure and code of the SpringBoot project – Testing of SpringBoot Application with JUnit5

What is GitLab CI/CD Workflow?

GitLab automatically enables CI/CD pipelines for new projects. It’s just a matter of adding a new configuration file called .gitlab-ci.yml to your code repository with instructions for GitLab on what to run. So simply create the following basic workflow in your main repository directory and commit it:

By default, GitLab will have CI/CD pipelines and Auto DevOps enabled for all projects. What this means is that, when you push code to the repository, GitLab will automatically trigger the pipeline.

GitLab Section

Step 1 – Create a blank project in GitLab

To know, how to create a blank new project in GitLab, please refer to How to create a new project in GitLab.

Step 2 – Push the project from the local repository to Gitlab Repository

To know, how to push the changes to GitLab, please refer to How to push new local GIT Repository to GitLab.

Step 3 – Create a .gitlab-ci.yml file in the project in GitLab

There are many ways to create a new file in GitLab. One of the ways is to create a file as shown in the below image. I have already created .gitlab-ci.yml in the project, which can be seen in the image.

It is a YAML file where you configure specific instructions for GitLab CI/CD. In the .gitlab-ci.yml, we can define:

  • The scripts you want to run.
  • Other configuration files and templates you want to include.
  • Dependencies and caches.
  • The commands you want to run in sequence and those you want to run in parallel.
  • The location to deploy your application to.
  • Whether you want to run the scripts automatically or trigger any of them manually.

Below is a sample example to run the SpringBoot project (Maven) in the GitLab pipeline.

image: maven:3.8.5-openjdk-17
 
stages:
  - test
 
variables:
  MAVEN_OPTS: "-Dmaven.repo.local=.m2/repository"
 
test:
  stage: test
  allow_failure: true
 
# Run the tests
  script:
    - echo "Executing SpringBoot scenarios with maven"
    - mvn clean test site
 
# Store artifacts
  artifacts:
    when: always
    name: "SpringBoot Report"
    paths:
    - target/site/*
    expire_in: 24 h

Image – maven:3.8.5-openjdk-17 is used in this test. It is a docker image for Maven and have Java 17 installed in it.

Pipeline configuration begins with jobs. Jobs are the most fundamental element of a  .gitlab-ci.yml file.

Jobs are:

  • Defined with constraints stating under what conditions they should be executed.
  • Top-level elements with an arbitrary name and must contain at least the script clause.
  • Not limited in how many can be defined.

Jobs can output an archive of files and directories. This output is known as a job artifact. The expire_in keyword determines how long GitLab keeps the job artifacts. Here, it shows 24 hrs to retain the artifacts.

Step 4 – View GitLab Pipeline

Now, when a new change is committed, a pipeline kicks off and it runs all the tests. To view the pipeline, go to the left panel and click on the Build option. There are a number of sub-options in the Build option, click on the Pipelines.

Step 5 – Run the tests in the GitLab pipeline

The below image shows that the tests are running in the GitLab pipeline.

Step 6 – Manually run the tests in the GitLab pipeline

Whenever there is a new change committed, the pipeline runs automatically. Imagine the scenario when we need to run the pipeline without any new change. This can be done by clicking on the button “Run pipeline”.

Step 7 – Check the status of the pipeline

Once the Status of the pipeline changes to either failed or passed, that means the tests are already executed.

As you can see, the Status is passed, its green colour. This means all the tests present in the test suite are executed and passed. If any test fails in the test suite, the final execution status will be brown. The reason for the brown colour is we have mentioned allow_failure: true.

Below shows the execution status report in the GitLab pipeline.

As I have added an artifact also in the .gitalb-ci.yml, which is highlighted in the image. This artifact creates a folder with the name “Serenity_Report” and the reports in this folder come from the path /target/site. This artifact gives us the option to download the reports or browse the report. This report will be available for 24 hours only as mentioned in the gitlab-ci.yml.

Step 8 – Download the report

Once, will click on the download button, it will download “SpringBoot_Report.zip”. Unzip the folder and it looks like something as shown below:

Example of SureFire-Report.html

Example of Project Summary Report

Congratulations. This tutorial has explained the steps to run Serenity tests in GitLab CI/CD. Happy Learning!!

Testing of SpringBoot Application with JUnit5

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In the previous tutorial, I explained about SpringBoot and how to perform Integration testing of SpringBoot Application. In this tutorial, I will explain about the Testing of the SpringBoot Application with JUnit5.

Prerequisite:

Spring Boot 3.0.4 requires Java 17 and is compatible with and including Java 19. Spring Framework 6.0.6 or above is also required.

Explicit build support is provided for the following build tools:

  1. Maven – 3.5+
  2. Gradle – 7.x (7.5 or later) and 8.x

Dependency List

  1. SpringBoot Starter Parent – 3.1.0
  2. Rest Assured – 5.3.0
  3. Java 17
  4. Maven – 3.8.6

What is SpringBoot Application?

 Spring Boot is an open-source micro-framework that provides Java developers with a platform to get started with an auto-configurable production-grade Spring application. 

  • Comes with embedded HTTP servers like Tomcat or Jetty to test web applications.
  • Adds many plugins that developers can use to work with embedded and in-memory databases easily. Spring allows you to easily connect with database and queue services like Oracle, PostgreSQL, MySQL, MongoDB, Redis, Solr, ElasticSearch, Rabbit MQ, and others.

Project Directory Structure

SpringBoot – 3.1.0-SNAPSHOT contains the JUnit 5 dependencies in it as shown in the below image. So, we don’t need to add them explicitly to the build.gradle.

Implementation Steps

Step 1 – Create a source folder – src/test/resources

Right-click on the test directory, select New->Directory and select resources (Maven Source Directories).

Step 2 – Add SpringBoot, and JUnit5 dependencies to the project

We have added SpringBootTest, and JUnit5 dependencies to pom.xml.

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>3.1.0-SNAPSHOT</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<groupId>com.example</groupId>
	<artifactId>SpringBoot_JUnit5_Demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>SpringBoot_JUnit5_Demo</name>
	<description>Demo project for Spring Boot</description>

	<properties>
		<java.version>17</java.version>
		<junit-jupiter.version>5.9.2</junit-jupiter.version>
		<rest.assured.version>5.3.0</rest.assured.version>
		<maven.compiler.plugin.version>3.10.1</maven.compiler.plugin.version>
		<maven.compiler.source.version>17</maven.compiler.source.version>
		<maven.compiler.target.version>17</maven.compiler.target.version>
		<maven.surefire.plugin.version>3.0.0-M9</maven.surefire.plugin.version>
		<maven.failsafe.plugin.version>3.0.0-M9</maven.failsafe.plugin.version>
		<maven.site.plugin.version>3.12.0</maven.site.plugin.version>
		<maven.surefire.report.plugin.version>3.0.0-M6</maven.surefire.report.plugin.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
		</dependency>

		<!-- Rest Assured -->
		<dependency>
			<groupId>io.rest-assured</groupId>
			<artifactId>rest-assured</artifactId>
			<version>${rest.assured.version}</version>
			<scope>test</scope>
		</dependency>


	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<version>3.0.4</version>
			</plugin>

			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-site-plugin</artifactId>
				<version>${maven.site.plugin.version}</version>
			</plugin>

			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-plugin</artifactId>
				<version>${maven.surefire.plugin.version}</version>
				<configuration>
					<testFailureIgnore>true</testFailureIgnore>
				</configuration>
			</plugin>
			
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>${maven.compiler.plugin.version}</version>
				<configuration>
					<source>${maven.compiler.source.version}</source>
					<target>${maven.compiler.target.version}</target>
				</configuration>

			</plugin>
		</plugins>
	</build>
	
	<reporting>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-report-plugin</artifactId>
				<version>${maven.surefire.report.plugin.version}</version>
			</plugin>
		</plugins>
	</reporting>

	<repositories>
		<repository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
		<repository>
			<id>spring-snapshots</id>
			<name>Spring Snapshots</name>
			<url>https://repo.spring.io/snapshot</url>
			<releases>
				<enabled>false</enabled>
			</releases>
		</repository>
	</repositories>
	
	<pluginRepositories>
		<pluginRepository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</pluginRepository>
		
		<pluginRepository>
			<id>spring-snapshots</id>
			<name>Spring Snapshots</name>
			<url>https://repo.spring.io/snapshot</url>
			<releases>
				<enabled>false</enabled>
			</releases>
		</pluginRepository>
	</pluginRepositories>

</project>

Step 3 – Create the Test classes

  • uses @SpringBootTest annotation which loads the actual application context.
  • uses WebEnvironment.RANDOM_PORT to create and run the application at some random server port.
  • @LocalServerPort gets the reference of the port where the server has started. It helps in building the actual request URIs to mimic real client interactions.

Below is the code of the Test class. These classes are created in the src/test/java directory.

import io.restassured.response.ValidatableResponse;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.server.LocalServerPort;
import static io.restassured.RestAssured.given;

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class SpringBootDemoTests {

    private final static String BASE_URI = "http://localhost:";

    @LocalServerPort
    private int port;

    @Value("${server.servlet.context-path}")
    private String basePath;

    private ValidatableResponse response;

    @Test
    public void verifyController1() throws Exception  {
         response = given().contentType("application/json")
                    .header("Content-Type", "application/json")
                 .when().get(BASE_URI + port + basePath+ "/").then().statusCode(200);

         String Actual = response.extract().asString();
          System.out.println("Result :"+Actual);
          Assertions.assertEquals("Hello World, Spring Boot!", Actual);
    }

    @Test
    public void verifyController2() throws Exception  {
        response = given().contentType("application/json")
                .header("Content-Type", "application/json")
                .when().get(BASE_URI + port + basePath+ "/qaautomation").then().statusCode(200);

        String Actual = response.extract().asString();
        System.out.println("Result :"+Actual);
        Assertions.assertEquals("Hello QA Automation!", Actual);
    }
}

This class sends the request and receives a response after performing the GET operation. Here, the validation of the response also takes place by asserting the expected and actual response

Step 4 – Create an application.properties file in src/test/resources

Application.properties is created under src/test/java

spring.profiles.active=test
server.port=8089
server.servlet.context-path=/demo

spring.profiles.active – property to specify which profiles are active. The default profile is always active.
server.port – By default, the embedded server starts on port 8080. Now the server will start on port 8089
server.servlet.context-path – the context path in Spring Boot can be changed by setting a property, server.servlet.context-path.

Step 5 – Run the tests from JUnit5

Right-click on the Test class and select RunSpringBootDemoTests’.

The output of the above program is

This image shows that the profile name is “test”. Application is started on port – “64733” and the context path is “/demo”.

Step 6 – Run the tests from the Command Line

Run the tests from the command line by using the below command

mvn clean test site

The output of the above program is

Step 7 – Surefire Report Generation

The test report generated by JUnit is placed under target/site/index.html.

Below is the sample Surefire Report.

Congratulations on making it through this tutorial and hope you found it useful! Happy Learning!! Cheers!!

Testing of SpringBoot Application with Serenity BDD, Cucumber and JUnit5

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In the previous tutorial, I explained about Integration Testing of Springboot with Cucumber and JUnit4. In this tutorial, I will explain the Testing of the SpringBoot Application in BDD format using Serenity Bdd and Cucumber and JUnit5.

What is Serenity BDD?

Serenity BDD is an open-source library that aims to make the idea of living documentation a reality.

Serenity BDD helps you write cleaner and more maintainable automated acceptance and regression tests faster. Serenity also uses the test results to produce illustrated, narrative reports that document and describe what your application does and how it works. Serenity tells you not only what tests have been executed, but more importantly, what requirements have been tested.

What is SpringBoot Application?

 Spring Boot is an open-source micro framework that provides Java developers with a platform to get started with an auto-configurable production-grade Spring application. 

  • Comes with embedded HTTP servers like Tomcat or Jettyto test web applications.
  • Adds many plugins that developers can use to work with embedded and in-memory databases easily. Spring allows you to easily connect with database and queue services like Oracle, PostgreSQL, MySQL, MongoDB, Redis, Solr, ElasticSearch, Rabbit MQ, and others.

  1. SpringBoot Starter Parent – 3.1.5
  2. Serenity –  4.0.18
  3. Serenity Cucumber – 4.0.18
  4. Serenity Rest Assured – 4.0.18
  5. Cucumber – 7.14.0
  6. Java 17
  7. JUnit Platform – 1.10.0
  8. Maven – 3.8.6

Project Directory Structure

Relationship between SpringBoot, Serenity BDD, Cucumber, and JUnit5

What is RestController?

HTTP requests are handled by a controller in Spring’s approach to building RESTful web services. The @RestController annotation identifies these components, and the GreetingController shown below (from src/main/java/com/example/springboot_demo/HelloController.java) handles GET requests for / and /qaautomation by returning a new instance of the Greeting class. Spring RestController takes care of mapping request data to the request-defined handles method.

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
  
@RestController
public class HelloController {
      
    @GetMapping(path="/")
    String hello() {
        return "Hello World, Spring Boot!";
    }
      
      
    @GetMapping(path="/qaautomation")
    String qaautomation() {
        return "Hello QA Automation!";
    }
  
}

Implementation Steps

Step 1 – Create a source folder – src/test/resources 

Right-click on the test directory select New->Directory and select resources (Maven Source Directories).

Step 2 – Add SpringBoot, Serenity, Cucumber, and JUnit5 dependencies to the project

We have added SpringBootTest, Serenity, Cucumber, JUnit5, Cucumber Junit Platform Engine, and many more.

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>3.1.5</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<groupId>com.example</groupId>
	<artifactId>SpringBoot3_Serenity_Cucumber_JUnit5_Demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>demo</name>
	<description>Demo project for Spring Boot</description>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<serenity.version>4.0.18</serenity.version>
		<serenity.cucumber.version>4.0.18</serenity.cucumber.version>
		<junit.platform.version>1.10.0</junit.platform.version>
		<cucumber.version>7.14.0</cucumber.version>
		<maven.surefire.plugin.version>3.2.1</maven.surefire.plugin.version>
		<maven.failsafe.plugin.version>3.2.1</maven.failsafe.plugin.version>
		<parallel.tests></parallel.tests>
		<maven.compiler.plugin>3.11.0</maven.compiler.plugin>
		<maven.compiler.source.version>17</maven.compiler.source.version>
		<maven.compiler.target.version>17</maven.compiler.target.version>
		<encoding>UTF-8</encoding>
		<tags></tags>
	</properties>
	
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
		</dependency>

		<!-- Serenity Core -->
		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-core</artifactId>
			<version>${serenity.version}</version>
			<scope>test</scope>
		</dependency>

		<!-- Serenity With Cucumber -->
		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-cucumber</artifactId>
			<version>${serenity.version}</version>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-screenplay</artifactId>
			<version>${serenity.version}</version>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-screenplay-webdriver</artifactId>
			<version>${serenity.version}</version>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-ensure</artifactId>
			<version>${serenity.version}</version>
			<scope>test</scope>
		</dependency>

		<!-- Serenity With Rest Assured -->
		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-rest-assured</artifactId>
			<version>${serenity.version}</version>
			<scope>test</scope>
		</dependency>

		<!-- Serenity With Spring -->
		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-spring</artifactId>
			<version>${serenity.version}</version>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>io.cucumber</groupId>
			<artifactId>cucumber-junit-platform-engine</artifactId>
			<version>${cucumber.version}</version>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>org.junit.platform</groupId>
			<artifactId>junit-platform-suite</artifactId>
			<version>${junit.platform.version}</version>
			<scope>test</scope>
		</dependency>

	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>

				<plugin>
					<groupId>org.apache.maven.plugins</groupId>
					<artifactId>maven-surefire-plugin</artifactId>
					<version>${maven.surefire.plugin.version}</version>
					<configuration>
						<skip>true</skip>
					</configuration>
				</plugin>
				<plugin>
					<artifactId>maven-failsafe-plugin</artifactId>
					<version>${maven.failsafe.plugin.version}</version>
					<configuration>
						<includes>
							<include>**/*Test.java</include>
							<include>**/SpringRunnerTests.java</include>
							<include>**/*TestSuite.java</include>
							<include>**/When*.java</include>
						</includes>
						<parallel>classes</parallel>
						<parallel>methods</parallel>
						<useUnlimitedThreads>true</useUnlimitedThreads>
					</configuration>
					<executions>
						<execution>
							<goals>
								<goal>integration-test</goal>
								<goal>verify</goal>
							</goals>
						</execution>
					</executions>
				</plugin>
				<plugin>
					<groupId>org.apache.maven.plugins</groupId>
					<artifactId>maven-compiler-plugin</artifactId>
					<version>${maven.compiler.plugin}</version>
					<configuration>
						<source>${maven.compiler.source.version}</source>
						<target>${maven.compiler.target.version}</target>
					</configuration>
				</plugin>
				<plugin>
					<groupId>net.serenity-bdd.maven.plugins</groupId>
					<artifactId>serenity-maven-plugin</artifactId>
					<version>${serenity.version}</version>
					<configuration>
						<tags>${tags}</tags>
					</configuration>
					<executions>
						<execution>
							<id>serenity-reports</id>
							<phase>post-integration-test</phase>
							<goals>
								<goal>aggregate</goal>
							</goals>
						</execution>
					</executions>
				</plugin>
			</plugins>
	</build>
	<repositories>
		<repository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
		<repository>
			<id>spring-snapshots</id>
			<name>Spring Snapshots</name>
			<url>https://repo.spring.io/snapshot</url>
			<releases>
				<enabled>false</enabled>
			</releases>
		</repository>
	</repositories>
	<pluginRepositories>
		<pluginRepository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</pluginRepository>
		<pluginRepository>
			<id>spring-snapshots</id>
			<name>Spring Snapshots</name>
			<url>https://repo.spring.io/snapshot</url>
			<releases>
				<enabled>false</enabled>
			</releases>
		</pluginRepository>
	</pluginRepositories>

</project>

Step 3 – Create a feature file under src/test/resources

Below is an example of a feature file that shows a sample test scenario.

Feature: SpringBoot Request
   
@ReceiveCorrectResponse

   Scenario Outline: Send a valid Request to get correct response
    Given I send a request to the URL "<url>"
    Then the response will return "<response>"

   Examples:
   | url                       | response                             |
   | /                          | Hello World, Spring Boot!  |
   | /qaautomation   | Hello QA Automation!        |

The test class mentioned below (AbstractRestAssuredHelper) contains integration tests for the spring boot rest controller mentioned. This test class:

  • uses @SpringBootTest annotation which loads the actual application context.
  • uses WebEnvironment.RANDOM_PORT to create and run the application at some random server port.
  • @LocalServerPort gets the reference of the port where the server has started. It helps in building the actual request URIs to mimic real client interactions.

Step 4 – Create the StepDefinition and Helper classes

Below is the code of the StepDefinition and Helper class. These classes are created in the src/test/java directory.

AbstractRestAssuredHelper

import io.restassured.RestAssured;
import io.restassured.specification.RequestSpecification;
import net.serenitybdd.rest.SerenityRest;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.web.server.LocalServerPort;


@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public abstract class AbstractRestAssuredHelper {
     private final static String BASE_URI = "http://localhost";
 
     @LocalServerPort
     private int port;

     @Value("${server.servlet.context-path}")
     private String basePath;
 
     protected void configureRestAssured() {
           RestAssured.baseURI = BASE_URI;
           RestAssured.port = port;
           RestAssured.basePath = basePath;
           
 
     }

     protected RequestSpecification getAnonymousRequest() {
           configureRestAssured();
           return SerenityRest.given();
     }
}

This class sends the request and receives a response after performing the GET operation. Here, the validation of the response also takes place by asserting the expected and actual response

To use Rest-assured, Serenity provides the class SerenityRest

import io.cucumber.java.en.Given;
import io.cucumber.java.en.Then;
import io.restassured.response.Response;
import net.serenitybdd.rest.SerenityRest;
import net.thucydides.core.annotations.Steps;
import org.junit.jupiter.api.Assertions;

public class SpringBootDemoDefinitions {

	@Steps
    AbstractRestAssuredHelper helper;
    private Response response;

    @Given("I send a request to the URL {string}")
    public void iSendARequest(String endpoint) throws Exception  {
         response = helper.getAnonymousRequest().contentType("application/json")
                    .header("Content-Type", "application/json").when().get(endpoint);
    }

    @Then("the response will return {string}")
    public void extractResponse(String Expected ) {
          SerenityRest.restAssuredThat(response -> response.statusCode(200));
          String Actual = response.asString();    
          System.out.println("Result :"+Actual);
          Assertions.assertEquals(Expected, Actual);
    }
}

Step 5 – Create a Serenity Runner class in the src/test/java directory

We cannot run a Feature file on its own in a cucumber-based framework. We need to create a Java class that will run the Feature File. It is the starting point for JUnit to start executing the tests. TestRunner class is created under src/ test/java

import org.junit.platform.suite.api.ConfigurationParameter;
import org.junit.platform.suite.api.IncludeEngines;
import org.junit.platform.suite.api.SelectClasspathResource;
import org.junit.platform.suite.api.Suite;
import static io.cucumber.junit.platform.engine.Constants.GLUE_PROPERTY_NAME;
import static io.cucumber.junit.platform.engine.Constants.PLUGIN_PROPERTY_NAME;

@Suite
@IncludeEngines("cucumber")
@SelectClasspathResource("com.example")
@SelectClasspathResource("/features")
@ConfigurationParameter(key = GLUE_PROPERTY_NAME, value = "com.example.definitions")
@ConfigurationParameter(key = PLUGIN_PROPERTY_NAME, value = "io.cucumber.core.plugin.SerenityReporterParallel,pretty,timeline:build/test-results/timeline")
public class SpringRunnerTests {
}

@Suite – annotation from JUnit 5 to make this class a run configuration for the test suite.
@IncludeEngines(“cucumber”) – tells JUnit 5 to use the Cucumber test engine to run features.
@SelectClasspathResource(“/features”) – to change the location of your feature files (if you do not add this annotation classpath of the current class will be used).
@ConfigurationParameter(key = GLUE_PROPERTY_NAME, value = “com.example.SpringBoot_Demo.definitions”) – this annotation specifies the path to steps definitions (java classes).

Step 6 – Run the tests from JUnit5

You can run the tests from SpringRunnerTests class. Right-click on the class and select Run ‘SpringRunnerTests’.

The output of the above program is

Step 7 – Run the tests from the Command Line

Run the tests from the command line by using the below command

mvn clean verify

The output of the above program is

The test execution status is shown below:

Step 8 – Serenity Report Generation

By default, the test report generated by Serenity is placed under target/site/serenity/index.html. Below is the sample Serenity Report.

Go to the Test Results tab and we can see all the test scenarios.

Step 9 – Cucumber Report Generation

Cucumber Report can be generated by adding publish=true in SpringRunnerTests as shown in the above example. Click on the link provided in the execution status.

Cucumber Report

The next tutorial explains the Testing of SpringBoot REST Application using Serenity BDD and Rest Assured for GET Method.

The complete code can be found on GitHub.

Run Cucumber7 with JUnit5 Tests from Maven Command Line

HOME

The previous tutorial will have explained to run Cucumber tests with JUnit4 or TestNG from Command-Line. Cucumber7 with JUnit5 has a lot of new configuration options. This tutorial will cover all the possible options.

To setup a framework with Cusumber7 and JUnit5, please refer to this tutorial – Integration of Cucumber7 with Selenium and JUnit5.

Below is the sample CucumberRunnerTests class for JUnit5.

import static io.cucumber.junit.platform.engine.Constants.GLUE_PROPERTY_NAME;
import org.junit.platform.suite.api.ConfigurationParameter;
import org.junit.platform.suite.api.SelectClasspathResource;
import org.junit.platform.suite.api.Suite;

@Suite
@IncludeEngines("cucumber")
@SelectClasspathResource("com/example")
@SelectClasspathResource("/features")
@ConfigurationParameter(key = GLUE_PROPERTY_NAME, value = "com.example")

public class CucumberRunnerTests  {

}

Run Test from Command Line

1. Open the command prompt and change the directory to the project location where pom.xml is present.

cd C:\Users\Vibha\eclipse-workspace_personnel\Cucumber7JUnit5_Demo

2. All feature files should be in src/test/resources and create the Cucumber Runner class as CucumberRunnerTest.
Note:- The Runner class name should end with Test to execute the tests from Command Line
Run the following command in the command prompt:

mvn clean test

mvn clean test runs Cucumber Features using Cucumber’s JUnit Runner.

3. The below screenshot shows the build success output.

Overriding Cucumber Options

Cucumber provides several options that can be passed to on the command line.

1. Running Scenarios using Tags from Command Line

If you are using Maven and want to run a subset of scenarios tagged with @ValidCredentials.

mvn clean test -Dcucumber.filter.tags="@ValidCredentials"

2. Running a Feature file from Command Line

Suppose you want to run a single Feature File from the command line, then use the below syntax

mvn clean test -Dcucumber.features=src/test/resources/features/LoginPage.feature

3. Passing plugin from Command Line

If we want to pass a plugin, please use the below-specified command:

mvn clean test -Dcucumber.plugin=html:target/cucumber-reports/cucumberReport.html

You can see that the cucumberReport.html is generated by the plugin.

4. Passing multiple Parameter from Command Line

If we want to pass more than one parameter, then we can use the following command

mvn clean test -Dcucumber.features=src/test/resources/features/LoginPage.feature -Dcucumber.filter.tags="@ValidCredentials"

You can see that only 1 test is executed and rest 4 tests are skipped out of total 5 tests as shown in the Report.

5. Running a Scenario without a tag from Command Line

If we want to run a single Scenario from the command line and no tag is assigned to that scenario, this is how we specify

mvn clean test -Dcucumber.features=src/test/resources/features/LoginPage.feature:11

6. Ignoring a subset of scenarios

If we do not want to run any Scenario from the command line, this is how we specify

mvn clean test -Dcucumber.filter.tags="not @ValidCredentials"

There is a total of 5 tests, but only 4 will be executed and 1 will be skipped. The output of the above program is shown below:

7. Pass glue code through command line

If we want to pass glue code from the command line, this is how we specify

mvn clean test -Dcucumber.glue=com.example

8. Pass dry run value through command line

dry-run option can either be set as true or false. If it is set as true, it means that Cucumber will only check that every step mentioned in the Feature File has corresponding code written in the Step Definition file or not. By default, dry-run is False.

mvn clean test -Dcucumber.execution.dry-run=true

This image shows the steps in the feature file that does not have step definitions.

The cucumber report shows that out of 2 tests, 1 is executed and another one is undefined.

9. Pass snippet type value through command line

The default option for snippets is UNDERSCORE. This settings can be used to specify the way code snippets will be created by Cucumber.

mvn clean test -Dcucumber.snippet-type=camelcase

You can see that the code snippet is in camelCase. In the previous example, it underscored.

That’s it! Congratulations on making it through this tutorial and hope you found it useful! Happy Learning!!

Testing of Gradle SpringBoot Application with Serenity and JUnit5

HOME

In the previous tutorial, I explained about  Testing of Gradle SpringBoot Application with Serenity, Cucumber and JUnit4. In this tutorial, I will explain the Testing of the SpringBoot Application with Serenity and JUnit5.

Prerequisite:

Spring Boot 3.0.4 requires Java 17 and is compatible with and including Java 19. Spring Framework 6.0.6 or above is also required.

Explicit build support is provided for the following build tools:

  1. Maven – 3.5+
  2. Gradle – 7.x (7.5 or later) and 8.x

This framework consists of

  1. SpringBoot Starter Parent – 3.1.0
  2. Serenity Rest Assured – 3.6.12
  3. Spring
  4. Java 17
  5. Gradle – 7.6.1
  6. JUnit Jupiter API – 5.9.2
  7. JUnit Jupiter Engine – 5.9.2
  8. Serenity JUnit5 – 3.6.12

What is SpringBoot Application?

 Spring Boot is an open-source micro-framework that provides Java developers with a platform to get started with an auto-configurable production-grade Spring application. 

  • Comes with embedded HTTP servers like Tomcat or Jetty to test web applications.
  • Adds many plugins that developers can use to work with embedded and in-memory databases easily. Spring allows you to easily connect with database and queue services like Oracle, PostgreSQL, MySQL, MongoDB, Redis, Solr, ElasticSearch, Rabbit MQ, and others.

Project Directory Structure

Implementation Steps

  1. Create a source folder – src/test/resources to create properties file
  2. Add SpringBootTest, Serenity Rest Assured, and Serenity-JUnit5 dependencies to the project
  3. Create the Test classes.
  4. Create an application.properties file in src/test/resources
  5. Run the tests from JUnit5
  6. Run the tests from Command Line
  7. Serenity Report Generation

Step 1 – Create a source folder – src/test/resources to create test scenarios in the Feature file

Right-click on the test directory and select New->Directory and select resources (Maven Source Directories).

Step 2 – Add SpringBootTest, Rest Assured, and allure dependencies to the project

We have added SpringBootTest, SpringBoot Web, Tomcat, Spring Web, Rest Assured, and Serenity-JUnit5 dependencies to the build.gradle.

plugins {
	id 'java'
	id 'org.springframework.boot' version '3.1.0-SNAPSHOT'
	id 'io.spring.dependency-management' version '1.1.0'
	id 'net.serenity-bdd.serenity-gradle-plugin' version '3.6.7'
}

group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '17'

repositories {
	mavenCentral()
	maven { url 'https://repo.spring.io/milestone' }
	maven { url 'https://repo.spring.io/snapshot' }
}

dependencies {

	implementation 'org.springframework.boot:spring-boot-starter'
	implementation 'org.springframework.boot:spring-boot-starter-web'
	implementation 'org.springframework.boot:spring-boot-starter-tomcat'
	implementation 'org.springframework:spring-web'

	testImplementation 'org.springframework.boot:spring-boot-starter-test'
	testImplementation 'net.serenity-bdd:serenity-junit5:3.6.12'
	testImplementation 'org.junit.jupiter:junit-jupiter-api:5.9.2'
	testImplementation 'org.junit.jupiter:junit-jupiter-engine:5.9.2'
	testImplementation 'net.serenity-bdd:serenity-core:3.6.12'
	testImplementation 'net.serenity-bdd:serenity-rest-assured:3.6.12'
	testImplementation 'net.serenity-bdd:serenity-spring:3.6.12'
}

tasks.named('test') {
	useJUnitPlatform() {}
	testLogging {
		showStandardStreams = true
	}
	systemProperties System.getProperties()
}

gradle.startParameter.continueOnFailure = true

test.finalizedBy(aggregate)

Step 3 – Create the Test classes

  • uses @SpringBootTest annotation which loads the actual application context.
  • uses WebEnvironment.RANDOM_PORT to create and run the application at some random server port.
  • @LocalServerPort gets the reference of the port where the server has started. It helps in building the actual request URIs to mimic real client interactions.

Below is the Test Class, created in the src/test/java directory.

import io.restassured.response.ValidatableResponse;
import net.serenitybdd.junit5.SerenityJUnit5Extension;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.server.LocalServerPort;
import static io.restassured.RestAssured.given;

@ExtendWith(SerenityJUnit5Extension.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class SpringBootDemoDefinitions {

    private final static String BASE_URI = "http://localhost:";

    @LocalServerPort
    private int port;

    @Value("${server.servlet.context-path}")
    private String basePath;
    
   private ValidatableResponse response;

    @Test
    public void verifyController1() throws Exception  {
        response = given().contentType("application/json")
                .header("Content-Type", "application/json")
                .when().get(BASE_URI + port + basePath+ "/").then().statusCode(200);

        String Actual = response.extract().asString();
        System.out.println("Result :"+Actual);
        Assertions.assertEquals("Hello World, Spring Boot!", Actual);
    }

    @Test
    public void verifyController2() throws Exception  {
        response = given().contentType("application/json")
                .header("Content-Type", "application/json")
                .when().get(BASE_URI + port + basePath+ "/qaautomation").then().statusCode(200);

        String Actual = response.extract().asString();
        System.out.println("Result :"+Actual);
        Assertions.assertEquals("Hello QA Automation!", Actual);
    }
}

This class sends the request and receives a response after performing the GET operation. Here, the validation of the response also takes place by asserting the expected and actual response

Step 4 – Create an application.properties file in src/test/resources

Application.properties is created under src/ test/java

spring.profiles.active=test
server.port=9091
server.servlet.context-path=/demo

spring.profiles.active – property to specify which profiles are active. The default profile is always active.
server.port – By default, the embedded server starts on port 8080. Now the server will start on port 8090
server.servlet.context-path – the context path in Spring Boot can be changed by setting a property, server.servlet.context-path.

Step 5 – Run the tests from JUnit5

Right-click on the Test class and select Run ‘SpringBoot_Tests’.

The output of the above program is

This image shows that the profile name is “test”. Application is started on port – “65221” and the context path is “/demo”.

Step 6 – Run the tests from Command Line

Run the tests from the command line by using the below command

gradle clean test

The output of the above program is

Step 7 – Serenity Report Generation

The best part about Serenity is the report generation by it. The Reports contain all possible type of information, you can think of with minimal extra effort. There is multiple types of reports are generated. We are interested in index.html .

Below is the new Serenity Report.

We are done! Congratulations on making it through this tutorial and hope you found it useful! Happy Learning!!

Testing of SpringBoot Application with Serenity and JUnit5

HOME

In the previous tutorial, I explained about Integration Testing of SpringBoot Application with Serenity BDD, Cucumber and JUnit4. In this tutorial, I will explain the Testing of the SpringBoot Application with Serenity and JUnit5.

This framework consists of

  1. SpringBoot Starter Parent – 3.1.0
  2. Serenity – 3.6.12
  3. Serenity JUnit5 – 3.6.12
  4. Serenity Rest Assured – 3.6.12
  5. Serenity Spring – 3.6.12
  6. JUnit Platform – 1.9.2
  7. Java 17
  8. Maven – 3.8.6

What is SpringBoot Application?

 Spring Boot is an open-source micro-framework that provides Java developers with a platform to get started with an auto-configurable production-grade Spring application. 

  • Comes with embedded HTTP servers like Tomcat or Jetty to test web applications.
  • Adds many plugins that developers can use to work with embedded and in-memory databases easily. Spring allows you to easily connect with database and queue services like Oracle, PostgreSQL, MySQL, MongoDB, Redis, Solr, ElasticSearch, Rabbit MQ, and others.

Project Directory Structure

What is RestController?

HTTP requests are handled by a controller in Spring’s approach to building RESTful web services. The @RestController annotation identifies these components, and the GreetingController shown below (from src/main/java/com/example/springboot_demo/HelloController.java) handles GET requests for / and /qaautomation by returning a new instance of the Greeting class. Spring RestController takes care of mapping request data to the request-defined handles method.

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
 
@RestController
public class HelloController {
     
    @GetMapping(path="/")
    String hello() {
        return "Hello World, Spring Boot!";
    }
     
     
    @GetMapping(path="/qaautomation")
    String qaautomation() {
        return "Hello QA Automation!";
    }
 
}

Implementation Steps

  1. Create a source folder – src/test/resources to create properties file
  2. Add SpringBootTest, Serenity and JUnit5 dependencies to the project
  3. Create the Test and Helper classes.
  4. Create an application.properties file in src/test/resources
  5. Create serenity.properties at the root of the project
  6. Run the tests from JUnit5
  7. Run the tests from Command Line
  8. Serenity Report Generation

Step 1 – Create a source folder – src/test/resources to create test scenarios in the Feature file

Right-click on the test directory and select New->Directory and select resources (Maven Source Directories).

Step 2 – Add SpringBootTest, Serenity, and JUnit5 dependencies to the project

We have added SpringBootTest, Serenity, Rest Assured, and JUnit5 dependencies to pom.xml.

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>3.1.0-SNAPSHOT</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<groupId>com.example</groupId>
	<artifactId>springboot_demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>springboot_demo</name>
	<description>Demo project for Spring Boot</description>

	<properties>
		<java.version>17</java.version>
		<serenity.version>3.6.12</serenity.version>
		<junit.platform.version>1.9.2</junit.platform.version>
		<maven.surefire.plugin.version>3.0.0-M9</maven.surefire.plugin.version>
		<maven.failsafe.plugin.version>3.0.0-M9</maven.failsafe.plugin.version>
		<maven.compiler.plugin.version>3.10.1</maven.compiler.plugin.version>
		<maven.compiler.source.version>17</maven.compiler.source.version>
		<maven.compiler.target.version>17</maven.compiler.target.version>
		<spring.maven.plugin.version>3.0.4</spring.maven.plugin.version>
		<tags></tags>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
			<exclusions>
				<exclusion>
					<groupId>junit</groupId>
					<artifactId>junit</artifactId>
				</exclusion>
			</exclusions>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
		</dependency>

		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-core</artifactId>
			<version>${serenity.version}</version>
			<scope>test</scope>
		</dependency>

		<!--  Serenity with JUnit5 -->
		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-junit5</artifactId>
			<version>${serenity.version}</version>
		</dependency>

		<!--  Serenity with Rest Assured -->
		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-rest-assured</artifactId>
			<version>3.6.12</version>
		</dependency>

		<!--  Serenity with Spring -->
		<dependency>
			<groupId>net.serenity-bdd</groupId>
			<artifactId>serenity-spring</artifactId>
			<version>3.6.12</version>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>org.junit.platform</groupId>
			<artifactId>junit-platform-suite</artifactId>
			<version>${junit.platform.version}</version>
			<scope>test</scope>
		</dependency>
	</dependencies>


	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<version>${spring.maven.plugin.version}</version>
			</plugin>

			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-plugin</artifactId>
				<version>${maven.surefire.plugin.version}</version>
				<configuration>
					<skip>true</skip>
				</configuration>
			</plugin>

			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-failsafe-plugin</artifactId>
				<version>${maven.failsafe.plugin.version}</version>
				<configuration>
					<includes>
						<include>**.java</include>
						<include>**/Tests.java</include>
					</includes>
				</configuration>
				<executions>
					<execution>
						<goals>
							<goal>integration-test</goal>
							<goal>verify</goal>
						</goals>
					</execution>
				</executions>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>${maven.compiler.plugin.version}</version>
				<configuration>
					<source>${maven.compiler.source.version}</source>
					<target>${maven.compiler.target.version}</target>
				</configuration>
			</plugin>

			<plugin>
				<groupId>net.serenity-bdd.maven.plugins</groupId>
				<artifactId>serenity-maven-plugin</artifactId>
				<version>${serenity.version}</version>
				<dependencies>
					<dependency>
						<groupId>net.serenity-bdd</groupId>
						<artifactId>serenity-single-page-report</artifactId>
						<version>${serenity.version}</version>
					</dependency>
				</dependencies>
				<configuration>
					<reports>single-page-html</reports>
				</configuration>
				<executions>
					<execution>
						<id>serenity-reports</id>
						<phase>post-integration-test</phase>
						<goals>
							<goal>aggregate</goal>
						</goals>
					</execution>
				</executions>
			</plugin>
		</plugins>
	</build>

	<repositories>
		<repository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
		<repository>
			<id>spring-snapshots</id>
			<name>Spring Snapshots</name>
			<url>https://repo.spring.io/snapshot</url>
			<releases>
				<enabled>false</enabled>
			</releases>
		</repository>
	</repositories>
	<pluginRepositories>
		<pluginRepository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</pluginRepository>
		<pluginRepository>
			<id>spring-snapshots</id>
			<name>Spring Snapshots</name>
			<url>https://repo.spring.io/snapshot</url>
			<releases>
				<enabled>false</enabled>
			</releases>
		</pluginRepository>
	</pluginRepositories>

</project>

Step 3 – Create the Test classes

  • uses @SpringBootTest annotation which loads the actual application context.
  • uses WebEnvironment.RANDOM_PORT to create and run the application at some random server port.
  • @LocalServerPort gets the reference of the port where the server has started. It helps in building the actual request URIs to mimic real client interactions.

Below is the code of the StepDefinition and Helper class. These classes are created in the src/test/java directory.

AbstractRestAssuredHelper

import io.restassured.RestAssured;
import io.restassured.specification.RequestSpecification;
import net.serenitybdd.rest.SerenityRest;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.server.LocalServerPort;

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public abstract class AbstractRestAssuredHelper {
    private final static String BASE_URI = "http://localhost";

    @LocalServerPort
    private int port;

    @Value("${server.servlet.context-path}")
    private String basePath;

    protected void configureRestAssured() {
        RestAssured.baseURI = BASE_URI;
        RestAssured.port = port;
        RestAssured.basePath = basePath;

    }

    protected RequestSpecification getAnonymousRequest() {
        configureRestAssured();
        return SerenityRest.given();
    }
}

This class sends the request and receives a response after performing the GET operation. Here, the validation of the response also takes place by asserting the expected and actual response

import io.restassured.response.ValidatableResponse;
import net.serenitybdd.junit5.SerenityJUnit5Extension;
import net.thucydides.core.annotations.Steps;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;

@ExtendWith(SerenityJUnit5Extension.class)
class SpringbootDemoApplicationTests {

	@Steps
	AbstractRestAssuredHelper helper;

	private ValidatableResponse response;


	@Test
	public void verifyController1()  {
		response = helper.getAnonymousRequest()
				.header("Content-Type", "application/json")
				.when().get("/").then().statusCode(200);

		String Actual = response.extract().asString();
		System.out.println("Result :"+Actual);
		Assertions.assertEquals("Hello World, Spring Boot!", Actual);
	}

	@Test
	public void verifyController2()   {
		response =  helper.getAnonymousRequest()
				.header("Content-Type", "application/json")
				.when().get("/qaautomation").then().statusCode(200);

		String Actual = response.extract().asString();
		System.out.println("Result :"+Actual);
		Assertions.assertEquals("Hello QA Automation!", Actual);
	}
}

Step 4 – Create an application.properties file in src/test/resources

Application.properties is created under src/test/resources for the test profileIf you want to run the SpringBootApplication from DEV profile, then create application.properties file in src/main/resources.

spring.profiles.active=test
server.port=8090
server.servlet.context-path=/demo

spring.profiles.active – property to specify which profiles are active. The default profile is always active.
server.port – By default, the embedded server starts on port 8080. Now the server will start on port 8090
server.servlet.context-path – the context path in Spring Boot can be changed by setting a property, server.servlet.context-path.

Step 5 – Create serenity.properties at the root of the project

serenity.project.name = Testing of SpringBoot Application with Serenity and JUnit5 Demo

Step 6 – Run the tests from JUnit5

Right-click on the Test class and select RunSpringBootDemoApplicationTests’.

The output of the above program is

This image shows that the profile name is “test”. Application is started on port – “58458” and the context path is “/demo”.

Step 7 – Run the tests from Command Line

Run the tests from the command line by using the below command

mvn clean verify

The output of the above program is

Step 8 – Serenity Report Generation

The serenity test reports are generated under target/site/serenity.

Below is the sample Index.html Report.

Go to Test Results, present at the top left of the index.html page.

Serenity-Summary.html

If you want to have Springboot Application in Gradle and you want to use Serenity and JUnit5. Please refer to this tutorial – Testing of Gradle SpringBoot Application with Serenity and JUnit5.

We are done! Congratulations on making it through this tutorial and hope you found it useful! Happy Learning!!

Serenity Reports

HOME

Serenity Reports are living documentation that contains the meaningful report for each Test. It illustrated narrative reports that document and describe what your application does and how it works.

Gradle – Integration of Selenium and JUnit5

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The previous tutorial explained How to create Gradle project with Selenium and JUnit4 in a Gradle project. In this tutorial, I will explain how we can set up a Gradle project with Selenium and JUnit5.

Pre Requisite:

  1. Java 8 or above installed
  2. Eclipse or IntelliJ IDE installed
  3. Gradle Installed
  4. Environment variables JAVA_HOME and GRADLE_HOME are correctly configured

This framework consists of:

  1. Java 11
  2. JUnit Jupiter – 5.8.2
  3. JUnit Jupiter Engine – 5.8.2
  4. Gradle – 7.3.3 (Build Tool)
  5. Selenium – 4.3.0

Steps to set up Gradle Java Project for Selenium and JUnit5

  1. Download and Install Java on the system
  2. Download and setup Eclipse IDE on the system
  3. Setup Gradle on System
  4. Create a new Gradle Project
  5. Add Selenium and JUnit5 dependencies to the Gradle project
  6. Create Pages and Test Code for the pages
  7. Run the tests from Command Line
  8. Gradle Report generation

Project Structure

Implementation Steps

Step 1- Download and Install Java

Selenium needs Java to be installed on the system to run the tests. Click here to know How to install Java.

Step 2 – Download and setup Eclipse IDE on the system

The Eclipse IDE (integrated development environment) provides strong support for Java developers. Click here to know How to install Eclipse.

Step 3 – Setup Gradle

To build a test framework, we need to add several dependencies to the project. This can be achieved by any build tool. I have used Gradle Build Tool. Click here to know How to install Gradle.

Step 4 – Create a new Gradle Project

If you want to create the Gradle project from Eclipse IDE, click here to know How to create a Gradle Java project.

Step 5 – Add Selenium and JUnit5 dependencies to the Gradle project
/*
 * This file was generated by the Gradle 'init' task.
 *
 */

plugins {
    // Apply the application plugin to add support for building a CLI application in Java.
    id 'application'
}

repositories {
    // Use Maven Central for resolving dependencies.
    mavenCentral()
}

java {
    sourceCompatibility = 11
    targetCompatibility = 11
}

dependencies {
    // Use JUnit Jupiter for testing.
    testImplementation 'org.junit.jupiter:junit-jupiter:5.8.2'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.2'

    implementation 'com.google.guava:guava:30.1.1-jre'
    implementation 'org.seleniumhq.selenium:selenium-java:4.4.0'
    implementation 'io.github.bonigarcia:webdrivermanager:5.3.0'
}

application {
    // Define the main class for the application.
    mainClass = 'com.example.App'
}

tasks.named('test') {
    // Use JUnit Platform for unit tests.
    useJUnitPlatform()  {
    }
    
 testLogging {
        events "passed", "skipped", "failed"
        showStandardStreams = true
    }
 
    systemProperties System.properties
    reports.html.setDestination(file("$projectDir/GradleReports"))
}  


Step 6 – Create Pages and Test Code for the pages

We have used PageFactory model to build the tests. I have created a package named pages and created the page classes in that folder. Page class contains the locators of each web element present on that particular page along with the methods of performing actions using these web elements.

This is the BasePage that contains the PageFactory.initElements.

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.support.PageFactory;

public class BasePage {
	
	  public WebDriver driver;

	  public BasePage(WebDriver driver) {
		  this.driver = driver;
		  PageFactory.initElements(driver,this);
	}

}

Below is the code for LoginPage and HomePage

LoginPage

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.FindBy;

public class LoginPage extends BasePage{
	
	 public LoginPage(WebDriver driver) {
		 super(driver);		
    }
	
	@FindBy(name = "username")
    public WebElement userName;
 
    @FindBy(name = "password")
    public WebElement password;
    
    @FindBy(xpath = "//*[@id='app']/div[1]/div/div[1]/div/div[2]/div[2]/form/div[1]/div/span")
    public WebElement missingUsernameErrorMessage;
    
    @FindBy(xpath = "//*[@id='app']/div[1]/div/div[1]/div/div[2]/div[2]/form/div[1]/div/span")
    public WebElement missingPasswordErrorMessage;
 
    @FindBy(xpath = "//*[@id='app']/div[1]/div/div[1]/div/div[2]/div[2]/form/div[3]/button")
    public WebElement login;
 
    @FindBy(xpath = "//*[@id='app']/div[1]/div/div[1]/div/div[2]/div[2]/div/div[1]/div[1]/p")
    public  WebElement errorMessage;
          
    public String getMissingUsernameText() {
        return missingUsernameErrorMessage.getText();
    }
    
    public String getMissingPasswordText() {
        return missingPasswordErrorMessage.getText();
    }
    
    public String getErrorMessage() {
        return errorMessage.getText();
    }
   
    public void login(String strUserName, String strPassword) {
 
    	userName.sendKeys(strUserName);
    	password.sendKeys(strPassword);
    	login.click();
 
    }

}

HomePage

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.FindBy;

public class HomePage extends BasePage {

	public HomePage(WebDriver driver) {
		super(driver);
	}

	  @FindBy(xpath = "//*[@id='app']/div[1]/div[2]/div[2]/div/div[1]/div[1]/div[1]/h5")
	  public  WebElement homePageUserName;

	    public String getHomePageText() {
	       return homePageUserName.getText();
   }

}

Here, we have BaseTests Class also which contains the common methods needed by other test pages.

import java.time.Duration;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import io.github.bonigarcia.wdm.WebDriverManager;

public class BaseTests {
	
	public WebDriver driver;
	public final static int TIMEOUT = 10;
    
	@BeforeEach
    public void setup() {
    	WebDriverManager.chromedriver().setup();
	    driver = new ChromeDriver();
	    driver.manage().window().maximize();
	    driver.get("https://opensource-demo.orangehrmlive.com/");	    
	    driver.manage().timeouts().implicitlyWait(Duration.ofSeconds(TIMEOUT));

    }
 
    @AfterEach
    public void tearDown() {
        driver.quit();
    }
    
}

LoginPageTests

import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Disabled;

public class LoginPageTests extends BaseTests{
	 
    @ParameterizedTest
    @CsvSource({
            "admin$$,admin123",
            "Admin,admin123!!",
            "admin123,Admin",
            "%%%%%,$$$$$$"})
    public void invalidCredentials(String username, String password) {
   
	    LoginPage objLoginPage = new LoginPage(driver);
    	objLoginPage.login(username, password);
    	 
    	// Verify Error Message
    	 assertEquals("Invalid credentials",objLoginPage.getErrorMessage());
    
    }
    
    @Test
    public void validLogin() {
   
	    LoginPage objLoginPage = new LoginPage(driver);
    	objLoginPage.login("Admin", "admin123");
    	 
    	HomePage objHomePage = new HomePage(driver);
    	
    	// Verify Home Page
    	 assertEquals("Employee Information",objHomePage.getHomePageText());
    
    }
    
    @Test 
    public void missingUsername() {
   
	    LoginPage objLoginPage = new LoginPage(driver);
    	objLoginPage.login("", "admin123");
    	     	
    	// Verify Error Message
   	     assertEquals("Invalid credentials",objLoginPage.getMissingUsernameText());
   	        
    }
	
    @Test @Disabled
    public void missingPassword() {
   
	    LoginPage objLoginPage = new LoginPage(driver);
    	objLoginPage.login("admin", "");
    	    	
    	// Verify Error Message
   	     assertEquals("Invalid credentials",objLoginPage.getMissingPasswordText());
    
    }    
   
}

Step 7 – Run the tests from Command Line

Note:- As you can see, my project has two parts – GradleSeleniumJUnit5_Demo and app.

Go to the app project and run the tests, using the below command.

gradle clean test

The output of the above program is

Step 8 – Gradle Report generation

Once the test execution is finished, refresh the project. We will see a folder – GradleReports. This report is generated when the tests are executed through the command line.

This folder contains index.html.

Right-click on index.html and select open with Web Browser. This report shows the summary of all the tests executed. As you can see that Failed tests are selected (highlighted in blue), so the name of the test failed along with the class name is displayed here.

This report contains detailed information about the failed test, which is shown below.

This shows the list of all the tests – passed, failed, or ignored.

Assumptions in JUnit5

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 Assumptions is a collection of utility methods that support conditional test execution based on assumptions.

In direct contrast to failed assertions, failed assumptions do not result in a test failure; rather, a failed assumption results in a test being aborted.

Assumptions are typically used whenever it does not make sense to continue execution of a given test method — for example, if the test depends on something that does not exist in the current runtime environment.

Junit 5 comes with a subset of the assumption methods that JUnit 4 provides with Java 8 lambda expressions and method references. All JUnit Jupiter assumptions are static methods in the org.junit.jupiter.api.Assumptions class.

  1. Assumptions.assumeTrue() – If the condition is true, then run the test, else aborting the test.
  2. Assumptions.false() – If the condition is false, then run the test, else aborting the test.
  3. Assumptions.assumingThat() – is much more flexible, If condition is true then executes, else do not abort test continue rest of code in test.
1. assumeTrue

The assumeTrue() method validates the given assumption to be true and if the assumption is true – the test proceed, otherwise, test execution is aborted.

    int num1 = 4;
    int num2=6;
    int num3 = 24;
    int num4=10;

    @Test
    void assumeTrueTest() {
        System.setProperty("ENV", "TEST");
        assumeTrue("TEST".equals(System.getProperty("ENV")));

        // Since the condition is true rest of it will get executed
        assertEquals((num1*num2),num3,"The product of "+num1+"and "+num2+"is equal to "+num3);

    }

The output of the above program is

In the below example, assumeTrue() is false. So, the execution is skipped.

    int num1 = 4;
    int num2=6;
    int num3 = 24;
    int num4=10;

    @Test
    void assumeTrueTest1() {
        System.setProperty("ENV", "TEST");
        assumeTrue("QA".equals(System.getProperty("ENV")));

        // Since the condition is true rest of it will not get executed
        assertEquals((num1*num2),num3,"The product of "+num1+"and "+num2+"is equal to "+num3);

    }

The output of the above program is

2. assumeFalse()

The assumeFalse() method validates the given assumption to false and if the assumption is false – test proceed, otherwise, test execution is aborted. In the below example, the test is false and we are using assumeFalse(), so the tests will be executed.

    int num1 = 4;
    int num2=6;
    int num3 = 24;
    int num4=10;

    @Test
    void assumeFalseTest1() {
        System.setProperty("ENV", "TEST");
        assumeFalse("DEV".equals(System.getProperty("ENV")));

        // Since the condition is true rest of it will get executed
        assertEquals((num1*num2),num3,"The product of "+num1+"and "+num2+"is equal to "+num3);

    }

The output of the above program is

In the below example, the test is false and we are using assumeFalse(), so the tests will be executed.

 @Test
    void assumeFalseTest() {
        System.setProperty("ENV", "TEST");
        assumeFalse("TEST".equals(System.getProperty("ENV")));

        // Since the condition is false rest of it will not get executed
        assertEquals((num1*num2),num3,"The product of "+num1+"and "+num2+"is equal to "+num3);

    }

The output of the above program is

3. assertThat()

This method executes the supplied Executable, but only if the supplied assumption is valid.

Unlike the other assumption methods, this method will not abort the test.

If the assumption is invalid, this method does nothing.
If the assumption is valid and the executable throws an exception, it will be treated like a regular test failure. The thrown exception will be rethrown as is but masked as an unchecked exception.

    int num1 = 4;
    int num2=6;
    int num3 = 24;
    int num4=10;
    int num5=8;
    int num6=2;

   @Test
    void assumingThatTest() {
        System.setProperty("ENV", "UAT");
        assumingThat(
                "UAT".equals(System.getProperty("ENV")),
                () -> {
                    // Since the condition is true, this assertion will get executed
                    System.out.println("Assuming that executable executed");
                    assertEquals((num1+num2),num4,"The product of "+ num1 +" and "+ num2 +" is not equal to "+num4);
                });
        // Since the condition is false rest of it will get executed
        System.out.println("Loop outside");
        assertEquals((num5-num2),num6,"The difference of "+ num5 +" and "+num2+" is not equal to " + num6);
    }

The output of the above program is

In the below example, the condition is false , so we skip the execution of that condition. But, we execute the rest of the code.

    int num1 = 4;
    int num2=6;
    int num3 = 24;
    int num4=10;

    @Test
    void assumingThatTest1() {
        System.setProperty("ENV", "UAT");
        assumingThat(
                "DEV".equals(System.getProperty("ENV")),
                () -> {
                    // Since the condition is false, this assertion will not get executed
                    System.out.println("Assuming that executable executed");
                    assertEquals((num1+num2),num4,"The sum of "+num1+"and "+num2+"is not equal to "+num4);
                });
        
        System.out.println("Loop outside");
        assertEquals((num1*num2),num3,"The product of "+num1+"and "+num2+"is not equal to "+num3);
    }

The output of the above program is

Difference between Assumption and Assertion

The main difference between the assertions and assumptions is –

The assumption is use to decide whether we want to execute a section or the rest of the test method or not and if the condition is false then the test is skipped.

Whereas if a condition in an assertion fails then it fails the test and something needs to be fixed.

How to parameterize Tests in JUnit5

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JUnit5  enables us to execute a single test method multiple times with a different sets of data. This is called Parameterization. Parameterized Tests are declared just like regular @Test methods but use the @ParameterizedTest annotation.

This article shows you how to run a test multiple times with different arguments, so-called ‘Parameterized Tests’, let’s see the following ways to provide arguments to the test:

  • @ValueSource
  • @EnumSource
  • @MethodSource
  • @CsvSource
  • @CsvFileSource
  • @ArgumentsSource

We need to add junit-jupiter-params to support parameterized tests. In the case of Maven, add the dependency to POM.xml

<dependency>
    <groupId>org.junit.jupiter</groupId>
    <artifactId>junit-jupiter-params</artifactId>
    <version>5.8.2</version>
    <scope>test</scope>
</dependency>

In case of Gradle, add the dependency as

testCompile("org.junit.jupiter:junit-jupiter-params:5.8.2")

1. @ValueSource

Let us start with a simple example. The following example demonstrates a parameterized test that uses the @ValueSource annotation to specify an integer array as the source of arguments. The following @ParameterizedTest method will be invoked three times, with the values 5,6, and 0 respectively.

@ParameterizedTest
@ValueSource(ints = {5, 6, 0})
void test_int_arrays(int b) {

    int a= 5;
    int sum = a + b;
    assertTrue(sum>8);
 }

When executing the above-parameterized test method, each invocation will be reported separately.

The output of the above program is:

One of the limitations of value sources is that they only support these types:

  • short (with the shorts attribute)
  • byte (bytes attribute)
  • int (ints attribute)
  • long (longs attribute)
  • float (floats attribute)
  • double (doubles attribute)
  • char (chars attribute)
  • java.lang.String (strings attribute)
  • java.lang.Class (classes attribute)

Also, we can only pass one argument to the test method each time.

In the below example, an array of strings is passed as the argument to the Parameterized Test.

@ParameterizedTest(name = "#{index} - Run test with args={0}")
@ValueSource(strings = {"java", "python", "javascript","php"})
void test_string_arrays(String arg) {
        assertTrue(arg.length() > 1);
}

The output of the above program is:

@NullSource

It provides a single null an argument to the annotated @ParameterizedTest method.

    @ParameterizedTest()
    @NullSource
    void nullString(String text) {
        assertTrue(text == null);
    }
    

The output of the above program is:

@EmptySource

It provides a single empty argument to the annotated @ParameterizedTest method of the following types:

  • java.lang.String
  • java.util.List
  • java.util.Set
  • java.util.Map
  • primitive arrays (e.g. int[])
  • object arrays (e.g. String[])
 @ParameterizedTest
    @EmptySource
    void testMethodEmptySource(String argument) {
        assertTrue(StringUtils.isEmpty(argument));
        assertTrue(StringUtils.isBlank(argument));
    }

The output of the above program is:

@NullAndEmptySource

We can pass empty or null values into the test via @EmptySource, @NullSource, or @NullAndEmptySource (since JUnit 5.4).

Let’s see the following example to test an isEmpty() method.

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.EmptySource;
import org.junit.jupiter.params.provider.NullSource;
import org.junit.jupiter.params.provider.ValueSource;
import static org.junit.jupiter.api.Assertions.*;

public class ParameterizedTestDemo {

    @ParameterizedTest(name = "#{index} - isEmpty()? {0}")
    @NullSource
    @EmptySource
    @ValueSource(strings = { " ", "   ", "\t", "\n","a"})
    void nullEmptyAndBlankStrings(String text) {
        assertTrue(text == null || text.trim().isEmpty());
    }
}

The parameterized test method result in seven invocations: 1 for null, 1 for the empty string, 4 for the explicit blank strings supplied via @ValueSource, and 1 non-blank string “a” supplied via @ValueSource.

The output of the above program is:

2. @EnumSource

@EnumSource provides a convenient way to use Enum constants.

public class EnumParameterizedTest {

    enum Error {
         Request_Invalid,
         Request_Timeout,
         RequestHeader_Invalid,
         Concurrency_Failed,
         ExternalCall_Failed,
         Schema_Invalid,
         Authentication_Failed;
    }

    @ParameterizedTest
    @EnumSource(Error.class)
    void test_enum(Error error) {
       assertNotNull(error);
    }
}

The output of the above program is:

The annotation provides an optional names attribute that lets you specify which constants shall be used, like in the following example. If omitted, all constants will be used.

    @ParameterizedTest(name = "#{index} - Is Error contains {0}?")
    @EnumSource(value = Error.class, names = {"Request_Invalid", "ExternalCall_Failed", "Concurrency_Failed", "Authentication_Failed"})
    void test_enum_include(Error error) {
       assertTrue(EnumSet.allOf(Error.class).contains(error));
    }

The output of the above program is:

The @EnumSource annotation also provides an optional mode attribute that enables fine-grained control over which constants are passed to the test method. For example, you can exclude names from the enum constant pool or specify regular expressions as in the following examples.

 @ParameterizedTest
 @EnumSource(value = Error.class, mode = EnumSource.Mode.EXCLUDE, names = {"Request_Invalid", "Request_Timeout", "RequestHeader_Invalid"})
    void test_enum_exclude(Error error) {
        EnumSet<Error> excludeRequestRelatedError = EnumSet.range(Error.Concurrency_Failed, Error.Authentication_Failed);
        assertTrue(excludeRequestRelatedError.contains(error));
  }

The output of the above program is:

EnumSource.Mode.EXCLUDE – It selects all declared enum constants except those supplied via the names attribute.

EnumSource.Mode.MATCH_ALL – It selects only those enum constants whose names match any pattern supplied via the names attribute.

  @ParameterizedTest
    @EnumSource(mode = EnumSource.Mode.MATCH_ALL, names = "^.*Invalid")
    void test_match(Error error) {
        assertTrue(error.name().contains("Invalid"));
    }

The output of the above program is

3. @MethodSource

@MethodSource allows you to refer to one or more factory methods of the test class or external classes.

Factory methods within the test class must be static unless the test class is annotated with @TestInstance(Lifecycle.PER_CLASS); whereas, factory methods in external classes must always be static. In addition, such factory methods must not accept any arguments.

If you only need a single parameter, you can return a Stream of instances of the parameter type as demonstrated in the following example.

   @ParameterizedTest(name = "#{index} - Test with String : {0}")
    @MethodSource("stringProvider")
    void test_method_string(String arg) {
        assertNotNull(arg);
    }

    // this need static
    static Stream<String> stringProvider() {
        return Stream.of("java", "junit5", null);
    }

The output of the above program is

If you do not explicitly provide a factory method name via @MethodSource, JUnit Jupiter will search for a factory method that has the same name as the current @ParameterizedTest method by convention. This is demonstrated in the following example.

    @ParameterizedTest(name = "#{index} - Test with String : {0}")
    @MethodSource
    void test_no_factory_methodname(String arg) {
        assertNotNull(arg);
    }

    static Stream<String> test_no_factory_methodname() {
        return Stream.of("java", "junit5", null);
    }

The output of the above program is

Streams for primitive types (DoubleStream, IntStream, and LongStream) are also supported as demonstrated by the following example.

 @ParameterizedTest(name = "#{index} - Test with Int : {0}")
    @MethodSource("rangeProvider")
    void test_method_int(int arg) {
        assertTrue(arg < 6);
    }
    
    static IntStream rangeProvider() {
        return IntStream.range(0, 6);
    }

The output of the above program is

If a parameterized test method declares multiple parameters, you need to return a collection, stream, or array of Arguments instances or object arrays as shown below.

    @ParameterizedTest
    @MethodSource("stringIntAndListProvider")
    void testWithMultiArgMethodSource(String str, int num, List<String> list) {
        assertEquals(5, str.length());
        assertTrue(num >=1 && num <=2);
        assertEquals(2, list.size());
    }

    static Stream<Arguments> stringIntAndListProvider() {
        return Stream.of(
                arguments("apple", 1, Arrays.asList("a", "b")),
                arguments("lemon", 2, Arrays.asList("x", "y"))
        );
    }

The output of the above program is

4. @CsvSource

@CsvSource allows you to express argument lists as comma-separated values (i.e., CSV String literals). Each string provided via the value attribute in @CsvSource represents a CSV record and results in one invocation of the parameterized test.

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import static org.junit.jupiter.api.Assertions.assertEquals;

public class CSVParameterizedTest {

    @ParameterizedTest
    @CsvSource({
            "java,      4",
            "javascript,   7",
            "python,    6",
            "HTML,    4",
    })


    void test(String str, int length) {
        assertEquals(length, str.length());
    }
}

The output of the above program is

5. @CsvFileSource

@CsvFileSource lets us use comma-separated value (CSV) files from the classpath or the local file system. Each record from a CSV file results in one invocation of the parameterized test. The first record may optionally be used to supply CSV headers.

csvdemo.csv

    @ParameterizedTest
    @CsvFileSource(resources = "/csvdemo.csv")

    void testLength(String str, int length) {
        Assertions.assertEquals(length, str.length());
    }

The output of the above program is

csv file with the heading

JUnit can ignore the headers via the numLinesToSkip attribute.

    @ParameterizedTest
    @CsvFileSource(files = "src/test/resources/csvdemo.csv",numLinesToSkip = 1)

    void testStringLength(String str, int length) {
        Assertions.assertEquals(length, str.length());
    }

The output of the above program is

If you would like the headers to be used in the display names, you can set the useHeadersInDisplayName attribute to true. The examples below demonstrate the use of useHeadersInDisplayName.

 @ParameterizedTest(name = "[{index}] {arguments}")
    @CsvFileSource(files = "src/test/resources/csvdemo.csv",useHeadersInDisplayName = true)

    void testStringLength1(String str, int length) {
        assertEquals(length, str.length());
    }

The output of the above program is

6. @ArgumentsSource

@ArgumentsSource can be used to specify a custom, reusable ArgumentsProvider. Note that an implementation of ArgumentsProvider must be declared as either a top-level class or as a static nested class.

import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.ArgumentsProvider;
import java.util.stream.Stream;

public class CustomArgumentsProvider implements ArgumentsProvider {

    @Override
    public Stream<? extends Arguments>
    provideArguments(ExtensionContext extensionContext) throws Exception {
        return Stream.of("java", "junit5", "junit4", null).map(Arguments::of);
    }
}
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ArgumentsSource;
import static org.junit.jupiter.api.Assertions.assertNotNull;

public class ArgumentsSourceTest {

    @ParameterizedTest
    @ArgumentsSource(CustomArgumentsProvider.class)
    void test_argument_custom(String arg) {
        assertNotNull(arg);
    }
}

The output of the above program is

Congratulation. We have understood parameterization in JUnit5 tests. Happy Learning!!