gistfile1.cs

        [TestMethod]
        public void Fires_event_when_recording_is_complete()
        {
            string filename = null;
            viewModel.RecordingComplete += (o, e) => filename = e.Filename;

            viewModel.RecordingCommand.Execute(null); // Start recording
            viewModel.RecordingCommand.Execute(null); // Stop recording

            Assert.IsNotNull(filename, "Should fire event when recording is complete.");
        }


// Causing an event to raise automatically when Submit is invoked
mock.Setup(foo => foo.Submit()).Raises(f => f.Sent += null, EventArgs.Empty);