visual studio - Forcing MSTest to use a single thread

Question

Given this test fixture:

[TestClass]
public class MSTestThreads
{
    [TestMethod]
    public void Test1()
    {
        Trace.WriteLine(Thread.CurrentThread.ManagedThreadId);
    }

    [TestMethod]
    public void Test2()
    {
        Trace.WriteLine(Thread.CurrentThread.ManagedThreadId);
    }
}

Running the test with MSTest through Visual Studio or command line prints two different thread numbers (yet they are run sequentially anyway).

Is there a way to force MSTest to run them using a single thread?

Answer 1

I solved this problem with locking:

public static class IntegrationTestsSynchronization
{
    public static readonly object LockObject = new object();
}

---

[TestClass]
public class ATestCaseClass
{
    [TestInitialize]
    public void TestInitialize()
    {
        Monitor.Enter(IntegrationTestsSynchronization.LockObject);
    }

    [TestCleanup]
    public void TestCleanup()
    {
        Monitor.Exit(IntegrationTestsSynchronization.LockObject);
    }

    //test methods
}

// possibly other test cases

This can of course be extracted to a base test class and reused.