I had a load test that used a coded web test. At some point the coded web test changed, i.e. this line was added: Outcome = Outcome.Fail;.
After this change the test stopped working – it always ended with error message: ‘User aborted test run’. Apart from that each iteration of the web test produced MethodAccessException: Microsoft.VisualStudio.TestTools.WebTesting.WebTest.set_Outcome(Microsoft.VisualStudio.TestTools.WebTesting.Outcome).
Solution
The reason for the problem was I was using Visual Studio TS 2008 without SP1. Once I installed the SP1, which must have updated mstest, the test started running successfully again.
The key point here is before SP1 Outcome was read-only property, which I learned there.
It’s a fact that coded web test methods give more flexibility to the developer, i.e. common code reuse. So let’s create a coded web test in whose GetRequestEnumerator() method you want to call a common method which tests some other requests. Let’s make it look as GetCommonRequests() in the example below:
public class AWebTest : WebTest
{
private IEnumerator<WebTestRequest> GetCommonRequests()
{
WebTestRequest req1 = new WebTestRequest("http://google.com");
yield return req1;
WebTestRequest req2 = new WebTestRequest("http://google.com");
yield return req2;
}
public override IEnumerator<WebTestRequest> GetRequestEnumerator()
{
WebTestRequest req = new WebTestRequest("http://google.com");
yield return req;
GetCommonRequests();
}
}
You would expect to see three requests in the test result. You will see only one though…
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