Is there any way to continue selenium web driver script after assert fails?

Question

I have some script which is written with selenium webdriver.

Actually, I have put some assert statement in between script.

When an assert statement fails my script stops execution.

Is there any way to continue my script after a failed assert statement.

Answer 1

Yes, use soft assertions org.testng.asserts.SoftAssert. Soft assertions are assertions that do not terminate the test when they fail but their results are included in the test execution report.

More articles on that topic:

• https://stackoverflow.com/questions/19091526/how-soft-assertions-work
• https://rameshbaskar.wordpress.com/2013/09/11/soft-assertions-using-testng/
• http://beust.com/weblog/2009/06/25/soft-asserts/

Answer 2

You can create extension methods for directly asserting elements. There you can wrap the assert statements with a try catch. In the catch, you can add the exception message to a log if you have one.

public static class SafeAssertExtensions
{
    public static void AreEquals(this IWebElement element, string expectedText)
    {
        try
        {
            if (element.Text == null)
            {
                throw new NullReferenceException("The element text property is null.");
            }
            Assert.AreEquals<string>(element.Text, expectedText, "The text- {0} was not as expected- {1}", element.Text, expectedText);
        }
        catch (Exception ex)
        {
            Log.WriteLine();
        }
    }
}

You can add similar methods for the other types of validations.

You can use it directly over your elements.

textFieldElement.AreEquals("your sample text content");

Answer 3

Failed assertion is nothing more than AssertionError which is a subclass of Throwable so you can treat it as any other exception.

Example code:

try {
    //some assertion
} catch (AssertionError err) {
    //print error to the log
    //take screenshot
    //do whatever you want
    //do nothing
}

Usually it is being followed by finally block where the same (or other) exception is re-thrown to mark the test as failed (test case nature assumes that it is designed to test a single small bit of functionality and if some step has failed - further testing doesn't make much sense)

The WebDriver Sampler: Your Top 10 Questions Answered provides relevant code snippet (it's in JavaScript but the idea should be the same) under "How do I Take a Screenshot When I Hit Errors?" chapter.

Answer 4

You can use SoftAssertions.

public void foo() {
        SoftAssert soft = new SoftAssert();
        soft.assertTrue(false);
        soft.assertTrue(true);
        soft.assertTrue(false);
        soft.assertAll(); // Will mark the test as failed
}

Answer 5

try{
    Assert.assertEquals(true, false);
   }
catch(AssertionError e)
   {
   System.out.println("Assertion error. ");
   }