public void BackgroundServiceBase_WhenException_ShouldFireEvent()
{
// arrange
var backgroundService = new BackgroundServiceTest {
ShouldFail = true
};
var host = HostHelper.Build(backgroundService);
List <TelemetryEvent> events = new List <TelemetryEvent>();
// act
ApplicationEventSource.Log.Listen(listener =>
{
var hostRun = host.RunAsync();
Task.Delay(100).GetAwaiter().GetResult();
events.AddRange(listener
.OrderedEvents
.Select(e => EventWrittenEventArgsExtensions.Map(e, "test"))
.ToArray());
});
// assert
Assert.NotNull(events
.FirstOrDefault(e => e.Message == "Unhandled exception occurred."));
}
public async Task BackgroundServiceBase_WhenExecute_ShouldPass()
{
// arrange
var backgroundService = new BackgroundServiceTest();
var host = HostHelper.Build(backgroundService);
// act
var hostRun = host.RunAsync();
var executed = await backgroundService.WaitExecution;
// assert
Assert.True(executed);
}