SearchBoxTestWithAds.java

@DataProvider(name = "searchBoxProvider")
public Object[][] searchBoxProvider() {
    return new Object[][] {
        { "http://www.google.com", "lst-ib" , new DefaultSearchEngine()},
        { "https://duckduckgo.com", "search_form_input_homepage", new DuckDuckGo()},
        { "https://www.dogpile.com/", "topSearchTextBox", new DefaultSearchEngine()},
        { "http://www.bing.com", "sb_form_q", new DefaultSearchEngine()}
    };
}

@Test(dataProvider = "searchBoxProvider")
public void shouldHaveVisibleSearchBox(String url, String searchBoxId, SearchEngine searchEngine) {
    WebDriver driver = new FirefoxDriver();
    driver.get(url);
    
    searchEngine.preparePage(driver);
    
    WebElement searchBox = driver.findElement(By.id(searchBoxId));
    assertTrue(searchBox.isDisplayed());
}