public void TestProfilingSessionExtensions_AddTag()
{
// mock profiler
var profilerId = Guid.NewGuid();
var mockProfiler = new Mock <IProfiler>();
var timingSession = new TimingSession(mockProfiler.Object, "test", null);
mockProfiler.Setup(p => p.Id).Returns(profilerId);
mockProfiler.Setup(p => p.GetTimingSession()).Returns(timingSession);
var target = new ProfilingSession(mockProfiler.Object);
target.AddTagImpl("tag1");
Assert.AreEqual(1, timingSession.Tags.Count);
Assert.AreEqual("tag1", timingSession.Tags.First());
}