package demo.tests;

import net.serenitybdd.junit.runners.SerenityRunner;
import net.thucydides.core.annotations.Managed;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.htmlunit.HtmlUnitDriver;

@RunWith(SerenityRunner.class)
public class GoogleSerenityDriverIT {
    @Managed
    public WebDriver webdriver;

    @Test
    public void googleSearchTest() {
        // And now use this to visit Google
        webdriver.get("http://www.google.com");

        // Find the text input element by its name
        WebElement element = webdriver.findElement(By.name("q"));

        // Enter something to search for
        element.sendKeys("Cheese!");

        // Now submit the form. WebDriver will find the form for us from the element
        element.submit();

        // Check the title of the page
        System.out.println("Page title is: " + webdriver.getTitle());
    }

    public static void LegazyWebDriverTest(String[] args) {
        // Create a new instance of the html unit driver
        // Notice that the remainder of the code relies on the interface,
        // not the implementation.
        WebDriver driver = new HtmlUnitDriver();

        // And now use this to visit Google
        driver.get("http://www.google.com");

        // Find the text input element by its name
        WebElement element = driver.findElement(By.name("q"));

        // Enter something to search for
        element.sendKeys("Cheese!");

        // Now submit the form. WebDriver will find the form for us from the element
        element.submit();

        // Check the title of the page
        System.out.println("Page title is: " + driver.getTitle());

        driver.quit();
    }
}

package demo.tests;

import net.serenitybdd.junit.runners.SerenityRunner;
import net.thucydides.core.annotations.Managed;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;

@RunWith(SerenityRunner.class)
public class GoogleSerenityDriverIT {
    @Managed
    public WebDriver webdriver;

    @Test
    public void googleSearchTest() {
        // And now use this to visit Google
        webdriver.get("http://www.google.com");

        // Find the text input element by its name
        WebElement element = webdriver.findElement(By.name("q"));

        // Enter something to search for
        element.sendKeys("Cheese!");

        // Now submit the form. WebDriver will find the form for us from the element
        element.submit();

        // Check the title of the page
        System.out.println("Page title is: " + webdriver.getTitle());
    }
}

Remove useless code