Running individual NUnit tests programmatically

Question

I need to run individual C# NUnit tests programmatically. I found another post that was very helpful in showing me how to run an entire set of tests programmatically, but I need

Answer 1

I had to pass a filter as well, just executing

TestResult testResult = remoteTestRunner.Run(new NullListener(), null , false, LoggingThreshold.Error);

ended in a NullReferenceException. I quickly created an empty filter

class EmptyFilter : TestFilter
{

    public override bool Match(ITest test)
    {
        return true;
    }
}

and passed it to the remoteTestRunner.

TestResult testResult = remoteTestRunner.Run(new NullListener(), new EmptyFilter() , false, LoggingThreshold.Error);

That worked. What one could invest a little is to search whether NUnit already has a similar Filter that could be reused rather than creating a custom one.