public void Bar_async()
{
Stopwatch s = Stopwatch.StartNew();
var foo = new Foo();
var task = foo.Bar_Async();
task.Wait();
MethodTimeLogger.numCalls.Should().Be(1, "there was one call to the method, this may mean the state machine is logging when we wait");
///s.ElapsedMilliseconds
long min = ((long)(s.ElapsedMilliseconds * .8));
long max = ((long)(s.ElapsedMilliseconds * 1.2));
MethodTimeLogger.lastCount.Should().BeInRange(min, max, "the timer should reflect the actual time, not when the async promise is returned");
}