CODEWITHSUNDEEP
c#.netcoded-ui-tests
Max Banaev
Max Banaev

Reputation: 926

Rerun CodedUI test in runtime

I have a CodedUI test. It sporadic fail by exception(can't focus element). Can I do something like this

[TestMethod]
public void MySporadicFailedTest()
{
        try {
          //Some Test action
        }
        catch((Exception ex)) {
          if (ex is System.Exception.ElementNotFocused){
            //retry test
          }
        }
}

Upvotes: 1

Views: 436

Answers (4)

Aurobinda Jena
Aurobinda Jena

Reputation: 11

 we can include below line of code in test clean up method to re run the     failed  script
if (TestContext.CurrentTestOutCome==TestContext.unittestoutcome.failed)
{
  var type=Type.GetType(TestContext.FullyQualifiedTestClassName);
  if (type !=null)
   {
     var method=Type.GetMethod(TestContext.TestName);
     var event=Activator.CreateInstance(type);
   }
 method.invoke(event);

}

Upvotes: 0

Daniel Mann
Daniel Mann

Reputation: 58980

This is something I deal with frequently when writing Coded UI tests. I almost always end up writing a simple extension method to handle retrying specific actions (not the entire test!). Sometimes, especially on pages with weird, non-standard markup or lots of AJAXy things happening, you'll just hit a situation where an action will fail one second because something isn't ready yet, then pass the next.

public static class TestRetryExtensions 
{
    public static void WithRetry<T>(this Action thingToTry, int timeout = 30) where T: Exception
    {
        var expiration = DateTime.Now.AddSeconds(timeout)
        while (true) 
        {
            try 
            {
                thingToTry();
                return;
            }
            catch (T) 
            {
                if (DateTime.Now > expiration) 
                {
                    throw;
                }
                Thread.Sleep(1000);
            }
        }
    }
}

Then, within my actual test:

uiMap.ClickSomeThing();
uiMap.EnterSomeText();
Action clickSomeOtherThingAction = () => uiMap.ClickSomeOtherThingThatFailsForNoReason();
clickSomeOtherThingAction.WithRetry<UITestControlHiddenException>(60);

It tries to perform the action. If it fails with an exception that you aren't aware of being an occasional "normal" thing, it throws the exception as normal. If it fails with an exception that you're telling it to retry on, it will keep trying that action (with a 1 second delay between retries) until the timeout is exceeded, at which point it just gives up and rethrows the exception.

Upvotes: 1

S.Roshanth
S.Roshanth

Reputation: 1507

If the codedUI test continuously failing without proper reason you can added some code to enhance the test and make it fail safe. If test failing specifically when focusing to an element try to give focus to upper level element first and then try focusing child elements. This LINK may help you to write fail safe test cases.

Upvotes: 0

Philip Pittle
Philip Pittle

Reputation: 12295

As long as you can catch which ever exception is thrown, you can wrap your test code in a retry loop. Then it will try the test code a certain number of times before giving up:

 for (var i = 0; i < TimesToRetry; i++)
 {
     try{
        //perform test

        //test ran correctly - break out loop to end test
        break;
     }
     catch(Exception){
        //might want to log exception
     }
 }

Upvotes: 0

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