1/// <summary>

2/// Redirects Debug Assert dialog messages to console output.

3/// </summary>

4/// <remarks>

5/// Debug assertions are written to NUnit's Console output tab.

6/// </remarks>

7[TestFixtureSetUp]
8public void TestFixtureSetUp()
9{
10    // Disable Debug traces

11    Trace.Listeners.Clear();
12
13    // Disable Debug assert message boxes

14    DefaultTraceListener listener = new DefaultTraceListener();
15    listener.AssertUiEnabled = false;
16    Trace.Listeners.Add(listener);
17
18    // Restore Debug traces to NUnit's Console.Out tab.

19    Trace.Listeners.Add(new TextWriterTraceListener(Console.Out));
20}
21

Add to TestFixtureSetup method to enable this functionality for your Test fixture.