Listener.java

package util;

import org.testng.*;

public class Listener implements ITestListener {

    // This belongs to ITestListener and will execute before the whole Test starts

    @Override
    public void onStart(ITestContext arg0) {
        Reporter.log("About to begin executing Class " + arg0.getName(), true);
    }

    // This belongs to ITestListener and will execute, once the whole Test is finished

    @Override
    public void onFinish(ITestContext arg0) {
        Reporter.log("About to end executing Class " + arg0.getName(), true);
    }
    // This belongs to ITestListener and will execute before each test method

    @Override
    public void onTestStart(ITestResult arg0) {
        Reporter.log("Testcase " + arg0.getName() + " started successfully", true);
    }

    // This belongs to ITestListener and will execute only on the event of successfull test method
    public void onTestSuccess(ITestResult arg0) {
        Reporter.log("Testcase " + arg0.getName() + " passed successfully", true);
    }

    // This belongs to ITestListener and will execute only on the event of fail test

    public void onTestFailure(ITestResult arg0) {
        Reporter.log("Testcase " + arg0.getName() + " failed", true);
    }

    // This belongs to ITestListener and will execute only on the event of skipped test method

    public void onTestSkipped(ITestResult arg0) {
        Reporter.log("Testcase " + arg0.getName() + " got skipped", true);
    }

    @Override
    public void onTestFailedButWithinSuccessPercentage(ITestResult arg0) {
    }
}

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>LambdaTest</artifactId>
    <version>1.0-SNAPSHOT</version>
    <dependencies>
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-api</artifactId>
            <version>4.0.0-alpha-7</version>
        </dependency>
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.14.3</version>
        </dependency>
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-remote-driver</artifactId>
            <version>4.0.0-alpha-7</version>
        </dependency>
    </dependencies>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

</project>

ReporterTest.java

package LamdaTest;

import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.testng.Assert;
import org.testng.Reporter;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Listeners;
import org.testng.annotations.Test;

import java.net.MalformedURLException;
import java.net.URL;

@Listeners({util.Listener.class})
class ReporterTest {


    public String username = "riadayal";
    public String accesskey = "BKnKA7UZPf0R7VdtmJSsq6AEA86R8wBNVch1MbLvtBzosqbNNA";
    public static RemoteWebDriver driver = null;
    public String gridURL = "@hub.lambdatest.com/wd/hub";

    @BeforeTest
    public void setUp() throws Exception {
        DesiredCapabilities capabilities = new DesiredCapabilities();
        capabilities.setCapability("browserName", "chrome");
        capabilities.setCapability("version", "93.0");
        capabilities.setCapability("platform", "win10"); // If this cap isn't specified, it will just get the any available one
        capabilities.setCapability("build", "TestNGReporterLog");
        capabilities.setCapability("name", "TestNGReporterLogSample");
        try {
            driver = new RemoteWebDriver(new URL("https://" + username + ":" + accesskey + gridURL), capabilities);
        } catch (MalformedURLException e) {
            System.out.println("Invalid grid URL");
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }


    @Test
    public void learnSingleInputFieldUsingSelenium() {
        try {
            Reporter.log("Logging into Selenium Playground");
            driver.get("http://labs.lambdatest.com/selenium-playground/");
            Reporter.log("Logged into Selenium Playground. Now, Clicking On Simple Form Demo", true);

            //Clicks on the simple form demo option in the selenium playground
            WebElement simpleFormDemo = driver.findElement(By.xpath("//a[text()='Simple Form Demo']"));
            simpleFormDemo.click();
            Reporter.log("Clicked successfully on Simple Form Demo option.", 2);

            //Enters the message in the enter message input box
            WebElement messageInputBox = driver.findElement(By.xpath("//input[@id='user-message']"));
            messageInputBox.sendKeys("Running my first testcase using Lambda Test");

            //Clicks on Show Message button
            WebElement showMessageButton = driver.findElement(By.xpath("//button[text()='Show Message']"));
            showMessageButton.click();

            //Retrieves the entered user message
            WebElement userMessage = driver.findElement(By.xpath("//label[text()='Your Message: ']//parent::div//span"));
            String actualUserText = userMessage.getText();
            Reporter.log("Actual User Input Is: " + actualUserText, 2, true);

            Assert.assertTrue(actualUserText.equals("Running my first testcase using Lambda Test"), "Expected and actual texts do not match.");
        } catch (Exception e) {

        }

    }

    @Test
    public void learnMultipleInputFieldUsingSelenium() {
        try {
            Reporter.log("Logging into Selenium Playground");
            driver.get("http://labs.lambdatest.com/selenium-playground/");
            Reporter.log("Logged into Selenium Playground. Now, Clicking On Simple Form Demo", true);

            WebElement simpleFormDemo = driver.findElement(By.xpath("//a[text()='Simple Form Demo']"));
            simpleFormDemo.click();
            Reporter.log("Clicked successfully on Simple Form Demo option For Multiple input fields.", 2);

            WebElement firstInputBox = driver.findElement(By.xpath("//input[@id='sum1']"));
            firstInputBox.sendKeys("2");

            WebElement secondInputBox = driver.findElement(By.xpath("//input[@id='sum2']"));
            secondInputBox.sendKeys("2");

            WebElement getTotalButton = driver.findElement(By.xpath("//button[text()='Get Total']"));
            getTotalButton.click();

            WebElement userMessage = driver.findElement(By.xpath("//label[text()='Total a + b = ']//parent::div//span"));
            String actualUserText = userMessage.getText();

            Reporter.log("The total of the two entered user inputs is: " + actualUserText, 2, true);
            Assert.assertTrue(actualUserText.equals("4"), "Expected and actual texts do not match.");
        } catch (Exception e) {

        }

    }

    @AfterTest
    public void closeBrowser() {
        driver.close();
        Reporter.log("The driver has been closed.", false);

    }

}

testng.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite thread-count="2" name="TestNGReporterSuite" parallel="classes" verbose="10">

    <test name="TestNGReporterTest" preserve-order="true">
        <classes>
            <class name="LamdaTest.ReporterTest">
                <methods>
                   <include name="learnMultipleInputFieldUsingSelenium"/>
                    <include name="learnSingleInputFieldUsingSelenium"/>
                </methods>
            </class>
        </classes>
    </test>
</suite>