Assert.Single() Failure: The collection did not contain any matching items Expected: (predicate expression) Collection: [Activity { ActivityTraceFlags = Recorded, Baggage = [], Context = System.Diagnostics.ActivityContext, DisplayName = "initialize", Duration = 00:00:00.0000792, ··· }, Activity { ActivityTraceFlags = Recorded, Baggage = [], Context = System.Diagnostics.ActivityContext, DisplayName = "initialize", Duration = 00:00:00.0012887, ··· }, Activity { ActivityTraceFlags = Recorded, Baggage = [], Context = System.Diagnostics.ActivityContext, DisplayName = "notifications/initialized", Duration = 00:00:00.0000090, ··· }, Activity { ActivityTraceFlags = Recorded, Baggage = [], Context = System.Diagnostics.ActivityContext, DisplayName = "notifications/initialized", Duration = 00:00:00.0007139, ··· }, Activity { ActivityTraceFlags = Recorded, Baggage = [], Context = System.Diagnostics.ActivityContext, DisplayName = "tools/list", Duration = 00:00:00.0002162, ··· }, ···]