Checking an element's presence

The Selenium WebDriver does not implement Selenium RC's isElementPresent() method to check if an element is present on a page. This method is useful for building a reliable test that checks an element's presence before performing any action on it.

In this recipe, we will write a method similar to the isElementPresent() method.

How to do it...

To implement the isElementPresent() method, follow these steps:

  1. Create a method isElementPresent() and keep it accessible to your tests, shown as follows:
    private boolean isElementPresent(By by) {
  try {
    driver.findElement(by);
      return true;
    } catch (NoSuchElementException e) {
      return false;
  }
}
  2. Now, implement a test that calls the isElementPresent() method. It will check if the desired element is present on a page. If found, it will click on the element; else it fails the test. This is done as follows:
    @Test
public void testIsElementPresent() {
  // Check if element with locator criteria exists on Page
  if (isElementPresent(By.name("airbags"))) {
    // Get the checkbox and select it
    WebElement airbag = driver.findElement(By.name("airbags"));
    if (!airbag.isSelected()) {
      airbag.click();
    }
  } else {
    fail("Airbag Checkbox doesn't exists!!");
  }
}

How it works...

The isElementPresent() method takes a locator using an instance of By. It then calls the findElement() method. If the element is not found, a NoSuchElementException exception will be thrown. Using the try and catch block, the isElementPresent() method will return true if the element is found and no exception is thrown; otherwise, it will return false if NoSuchElementException is thrown by the findElement() method.

See also

  • The Checking an element's status recipe
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