SmokeTest.java

public class SmokeTest {
    private WebDriver driver;

    @BeforeClass
    public void beforeClass() {
        WebDriverManager.chromedriver().setup();
        ChromeOptions options = new ChromeOptions();
        driver = new ChromeDriver(options);
        driver.manage().timeouts().implicitlyWait(Duration.ofSeconds(10));
        driver.manage().window().maximize();
        driver.navigate().to("https://github.com/");
    }

    @AfterClass(alwaysRun = true)
    public void afterClass() {
        driver.quit();
    }

    @Test
    public void testSearchFeature(){
        // This test should verify that search works.
        WebElement searchBox = driver.findElement(By.name("q"));
        searchBox.sendKeys("selenium");
        searchBox.submit();

        WebElement seleniumHQLink = driver.findElement(By.linkText("SeleniumHQ/selenium"));
        Assert.assertTrue(seleniumHQLink.isDisplayed());

        Assert.assertTrue(driver.getCurrentUrl().startsWith("https://github.com/search?q=selenium"));
    }

    @Test
    public void testResponsiveLayout() {
        // This test should verify that in lower resolution search is not displayed.
        // Instead of it hamburger menu should be available.
        Dimension dimension = new Dimension(800, 600);
        driver.manage().window().setSize(dimension);

        WebElement searchBox =driver.findElement(By.name("q"));
        Assert.assertFalse(searchBox.isDisplayed());

        By hamburgerMenuLocator = By.cssSelector("button[aria-label='Toggle navigation']");
        WebElement hambugerMenu = driver.findElement(hamburgerMenuLocator);
        Assert.assertTrue(hambugerMenu.isDisplayed());
    }
}