Hi,

I am using ConcurrentTestRunner. The code is running but it says 0 tests ran. I am using junit4.12. Any idea for this issue?

Hi, I started using your lib today and noticed that IntelliJ doesn't shows the tests results well after using ConcurrentTestRunner. I ran this

@RunWith(ConcurrentTestRunner.class)
public class TestingTests
{

	@Test
	public void thisShouldPass()
	{
		Assert.assertTrue(true);
	}
	@Test
	public void thisShouldFail()
	{
		Assert.fail();
	}
}

And got this:

If I remove the @RunWith annotation for using the default runner, I get the expected behaviour:

Any ideas on this? I'm using Junit 4.12, Java 8 and IntelliJ 2016.2

Best regards
Luis.

When one test using ErrorCollector fails, all the following tests report the same failure. I have created a small snippet to demonstrate this.
You can play with the test names to affect ordering and change the runner.

import com.anarsoft.vmlens.concurrent.junit.ConcurrentTestRunner;
import org.hamcrest.Matchers;
import org.junit.FixMethodOrder;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ErrorCollector;
import org.junit.runner.RunWith;
import org.junit.runners.MethodSorters;
import static org.junit.Assert.assertTrue;

// Fixed test order. Rename test0 to test_ to see the change
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
// Change to default runner and the result is the expected in any test order.
@RunWith(ConcurrentTestRunner.class)
public class TestErrorCollector {

  @Rule
  public ErrorCollector errors = new ErrorCollector();

  @Test
  public void test1() {
    assertTrue(true);
  }

  @Test
  public void test0() {
    errors.checkThat(1, Matchers.equalTo(2));
  }

}

EOM

Since very many Java projects are built using maven, it would be useful to have this in a public maven repo too.

I am using ConcurrentTestRunner with Powermock, but there is an inconsistency in the test results. On further debugging i realised that all the threads running the test method are using the same object that was created by the last thread when executing the following loc.
Test class loc

UpdateCarerDetailsResponse mockUpdateCarerDetailsResponse = new UpdateCarerDetailsResponse();
when(mockUpdateCarerService.updateIdentity(intPcehrHeader, null,validPassphrase))
.thenReturn(mockUpdateCarerDetailsResponse);

Actual Servlet class

UpdateCarerDetailsResponse updateCarerDetailsResponse = updateCarerService.updateIdentity(intPcehrHeader, email, null);

I have added log statements before and after the above line of code in both the servlet and the test classes. The log statement after the above loc in the servlet class indicates that it is the same object that is used by all the 3 threads running the test method. On further debugging, i found that it is object created by the last thread that executed the test method that is used by the rest when executing the servlet method.

Please find below the log statements from the test and the servlet classes

[Thread-1] INFO XXX.UpdateCarerIdentityServletTest - 00000setting this value:java.io.PrintWriter@51645910 and response ::YYY._1.UpdateCarerDetailsResponse@3bf83cc for thread:Thread-1
[Thread-3] INFO XXX.UpdateCarerIdentityServletTest - 00000setting this value:java.io.PrintWriter@5f89131b and response ::YYY._1.UpdateCarerDetailsResponse@1641a275 for thread:Thread-3
[Thread-2] INFO XXX.UpdateCarerIdentityServletTest - 00000setting this value:java.io.PrintWriter@557d55ad and response ::YYY._1.UpdateCarerDetailsResponse@ 20f0767c for thread:Thread-2

[Thread-1] INFO XXX.UpdateCarerIdentityServlet - in actual 4444::for thread:Thread-1 updateCarerDetailsResponse:YYY._1.UpdateCarerDetailsResponse@20f0767c
[Thread-3] INFO XXX.UpdateCarerIdentityServlet - in actual 4444::for thread:Thread-3 updateCarerDetailsResponse:YYY._1.UpdateCarerDetailsResponse@20f0767c
[Thread-2] INFO XXX.UpdateCarerIdentityServlet - in actual 4444::for thread:Thread-2 updateCarerDetailsResponse:YYY._1.UpdateCarerDetailsResponse@20f0767c

Can someone help me understand why is a method variable being shared by threads?