1. Introduction
In this short tutorial, we’re going to take a look at a simple example of how to click an element in Selenium WebDriver using JavaScript.
For our demo, we’ll use JUnit and Selenium to open https://baeldung.com and search for “Selenium” articles.
2. Dependencies
First, we add the selenium-java and junit dependencies to our project in the pom.xml:
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>3.141.59</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13</version>
<scope>test</scope>
</dependency>
3. Configuration
Next, we need to configure WebDriver. In this example, we’ll use its Chrome implementation after downloading its latest version:
@Before
public void setUp() {
System.setProperty("webdriver.chrome.driver", new File("src/main/resources/chromedriver.mac").getAbsolutePath());
driver = new ChromeDriver();
}
We’re using a method annotated with @Before to do the initial setup before each test. Inside we’re setting the webdriver.chrome.driver property defining the chrome driver location. After that, we’re instantiating the WebDriver object.
When the test finishes, we should close the browser window. We can do it by placing the driver.close() statement in a method annotated with @After. This makes sure it’ll be executed even if the test fails:
@After
public void cleanUp() {
driver.close();
}
4. Opening the Browser
Now, we can create a test case that will do our first step – open the website:
@Test
public void whenSearchForSeleniumArticles_thenReturnNotEmptyResults() {
driver.get("https://baeldung.com");
String title = driver.getTitle();
assertEquals("Baeldung | Java, Spring and Web Development tutorials", title);
}
Here, we use the driver.get() method to load the webpage. Next, we verify its title to ensure we’re in the right place.
5. Clicking an Element Using JavaScript
Selenium comes with a handy WebElement#click method that invokes a click event on a given element. But in some cases, click action is not possible.
One example is if we want to click a disabled element. In that case, WebElement#click throws an IllegalStateException. Instead, we can use Selenium’s JavaScript support.
To do this, the first thing that we’ll need is the JavascriptExecutor. Since we are using the ChromeDriver implementation, we can simply cast it to what we need:
JavascriptExecutor executor = (JavascriptExecutor) driver;
After getting the JavascriptExecutor, we can use its executeScript method. The arguments are the script itself and an array of script parameters. In our case, we invoke the click method on the first argument:
executor.executeScript("arguments[0].click();", element);
Now, let’s put it together into a single method that we’ll call clickElement:
private void clickElement(WebElement element) {
JavascriptExecutor executor = (JavascriptExecutor) driver;
executor.executeScript("arguments[0].click();", element);
}
And finally, we can add this to our test:
@Test
public void whenSearchForSeleniumArticles_thenReturnNotEmptyResults() {
// ... load https://baeldung.com
WebElement searchButton = driver.findElement(By.className("nav--menu_item_anchor"));
clickElement(searchButton);
WebElement searchInput = driver.findElement(By.id("search"));
searchInput.sendKeys("Selenium");
WebElement seeSearchResultsButton = driver.findElement(By.cssSelector(".btn-search"));
clickElement(seeSearchResultsButton);
}
6. Non-Clickable Elements
One of the most common problems while clicking an element using JavaScript is executing the click script before the element is clickable. In this situation, the click action won’t happen, but the code will continue to execute.
To overcome this issue, we have to hold back the execution until the clicking is available. We can use WebDriverWait#until to wait until the button is rendered.
First, the WebDriverWait object requires two parameters; the driver and a timeout:
WebDriverWait wait = new WebDriverWait(driver, 5000);
Then, we call until, giving the expected elementToBeClickable condition:
wait.until(ExpectedConditions.elementToBeClickable(By.className("nav--menu_item_anchor")));
And once that returns successfully, we know we can proceed:
WebElement searchButton = driver.findElement(By.className("nav--menu_item_anchor"));
clickElement(searchButton);
For more available condition methods, refer to the official documentation.
7. Conclusion
In this tutorial, we’ve learned how to click an element in Selenium using JavaScript. As always, the source for the article is available on GitHub.
