Check if “Please enter an email address” message appears

Question

Given a simple page:

  
  click

If I enter anything in

Answer 1

I haven't found a way to check for the actual error message. However, you can check that the input field is invalid after entering a non-email, using the :invalid CSS pseudo-selector.

WebElement invalidInput = driver.findElement(By.cssSelector("input:invalid"));
assertThat(invalidInput.isDisplayed(), is(true));