protected override void ActMethod()
{
removedInstanceSink = null;
GC.Collect();
// test failed intermittently without the delay, garbage collection message was missing.
Task.Delay(TimeSpan.FromMilliseconds(1)).Wait();
source.DoIt();
Trace.Flush();
memoryStream.Position = 0;
string text;
using (var reader = new StreamReader(memoryStream))
{
text = reader.ReadToEnd();
}
traceLines.AddRange(text.Split("\n\r".ToCharArray(), StringSplitOptions.RemoveEmptyEntries));
}