Selenium C# continue on failure

Question

I'm trying to learn automation with Selenium Webdriver using c#. I have my custom method Assert. What I did to continue the test after catching an AssertFailedException is using try-catch below is my code

public static void assert(string value, IWebElement element)
    {
        try
        {
            Assert.AreEqual(value, element.Text);
        }
        catch (AssertFailedException e)
        {
            Console.WriteLine(e.Message.ToString());
        }
    }

My problem is it catches all AssertFailedException(which is my goal) but the result of the test is PASSED in visual studio. My question is, how do I implement Continue on Failure and Fail the test if the Console contains Exceptions. Thankyou in advance guys!

Don't catch AssertFailedException inside your custom method. remove the try catch block. — Sudharsan Selvaraj
– Sudharsan Selvaraj, Commented Sep 27, 2016 at 9:47
Assign a boolean variable in catch block and at the end of test use the same value to fail the test. — Girish Bellamkonda
– Girish Bellamkonda, Commented Sep 27, 2016 at 10:06
@SudharsanSelvaraj If i remove the try catch block, It will stop the execution of the test when the Assert method fails. What I need is to continue the test until the end of the execution. Thankyou! — creulo
– creulo, Commented Sep 28, 2016 at 5:06

oldbam · Accepted Answer · 2016-09-28 15:30:19Z

1

As far as I understand, you want to do several checks inside your test, and at the very end of it to determine whether any of of them failed. You may need to write some custom code to achieve this. For example, you may introduce a class Assertion:

internal class Assertion
{
    private readonly string title;
    private readonly object expected;
    private readonly object actual;

    public Assertion(string title, object expected, object actual)
    {
        this.title = title;
        this.expected = expected;
        this.actual = actual;
    }

    public bool IsMatch()
    {
        return this.actual == this.expected;
    }

    public override string ToString()
    {
        return $"Title: {title}. Expected: {expected}. Actual: {actual}";
    }
}

When your test is running, you will create new instances of Assertion class and store them in a list. At the end of the test, you can use the following method:

    private static void VerifyAssertions(Assertion[] assertions)
    {
        var failedAssertions = assertions.Where(a => !a.IsMatch()).ToArray();
        if (failedAssertions.Any())
        {
            throw new AssertFailedException(string.Join<Assertion>("; ", failedAssertions));
        }
    }

answered Sep 28, 2016 at 15:30

oldbam

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1 Comment

creulo Over a year ago

Very nice logic and code. I will try this now and report the result to you after. Thankyou very much @oldbam

Sai · Accepted Answer · 2016-09-28 14:02:55Z

0

You could try using verify instead of assert for minor checks. Assert by default indicates a major checkpoint and script execution will be terminated on fail and if you catch that exception the reporting will be ignored - this is expected behaviour. However, a verify indicates that the script can continue even on fail - in this case the failed step will be reported and the script will continue.

To put it simply, use assert when you don't want the script to proceed on failure and use verify when you want the script to report the failure and proceed.

answered Sep 28, 2016 at 14:02

Sai

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1 Comment

creulo Over a year ago

Now I understand what Assert really does. Can I ask how do I make a verify method? :)

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