How Selenium Helps You Land an Automation Tester Job Faster

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.Assert;
import org.testng.annotations.*;

public class WebFormTest {
    private WebDriver driver;

    @BeforeMethod
    public void setUp() { driver = new ChromeDriver(); }

    @Test
    public void submitsForm() {
        driver.get("https://www.selenium.dev/selenium/web/web-form.html");
        driver.findElement(By.name("my-text")).sendKeys("Uncodemy");
        driver.findElement(By.cssSelector("button")).click();
        Assert.assertEquals(driver.findElement(By.id("message")).getText(), "Received!");
    }

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

import java.time.Duration;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;

WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(10));
WebElement banner = wait.until(
    ExpectedConditions.visibilityOfElementLocated(By.cssSelector(".alert-success")));
Assert.assertTrue(banner.getText().contains("Saved"));

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;

public class LoginPage {
    private final WebDriver driver;
    private final By email = By.id("email");
    private final By password = By.id("password");
    private final By submit = By.cssSelector("[data-test='login']");

    public LoginPage(WebDriver driver) { this.driver = driver; }

    public void loginAs(String user, String pass) {
        driver.findElement(email).sendKeys(user);
        driver.findElement(password).sendKeys(pass);
        driver.findElement(submit).click();
    }
}

import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

public class LoginTests extends BaseTest {
    @DataProvider(name = "badLogins")
    public Object[][] badLogins() {
        return new Object[][] {
            {"", "secret"},
            {"user@example.com", ""},
            {"not-an-email", "secret"},
        };
    }

    @Test(dataProvider = "badLogins")
    public void rejectsInvalidLogin(String user, String pass) {
        driver.get(config.get("baseUrl") + "/login");
        new LoginPage(driver).loginAs(user, pass);
        // assert the validation message is shown
    }
}

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
<suite name="Regression" parallel="methods" thread-count="4">
  <test name="UI">
    <classes>
      <class name="tests.LoginTests"/>
      <class name="tests.CheckoutTests"/>
    </classes>
  </test>
</suite>

import java.net.URL;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.remote.RemoteWebDriver;

ChromeOptions options = new ChromeOptions();
options.addArguments("--headless=new");
WebDriver driver = new RemoteWebDriver(
    new URL("http://localhost:4444"), options);

<dependencies>
  <dependency>
    <groupId>org.seleniumhq.selenium</groupId>
    <artifactId>selenium-java</artifactId>
    <version>4.25.0</version>
  </dependency>
  <dependency>
    <groupId>org.testng</groupId>
    <artifactId>testng</artifactId>
    <version>7.10.2</version>
    <scope>test</scope>
  </dependency>
</dependencies>

selenium-framework/
├── pom.xml
├── testng.xml
└── src/test/java/
    ├── base/BaseTest.java
    ├── pages/LoginPage.java
    ├── pages/CheckoutPage.java
    ├── tests/LoginTests.java
    ├── tests/CheckoutTests.java
    └── utils/Config.java

# Selenium + Java + TestNG framework
- Page Object Model with stable data-test locators
- Explicit waits only, no Thread.sleep
- Data-driven tests with @DataProvider
- Parallel execution via testng.xml
- Headless runs in GitHub Actions on every push
Run: mvn test