public async Task StartAndStopTheEngineCorrectly()
{
using var cancellationSource = new CancellationSource();
using var target = new ScheduledProducerEngine <object>(executionStrategy.Object, cancellationSourceFactory.Object, errorHandler.Object, scheduler.Object, new ScheduledEngineOptions());
cancellationSourceFactory.Setup(o => o.Create(It.IsAny <CancellationToken>())).Returns(cancellationSource);
target.Initialize(context => { }, CancellationToken.None);
await target.StartAsync();
Assert.True(target.IsRunning);
await target.StopAsync();
Assert.False(target.IsRunning);
}
public async Task RunsTheErrorHandlerWhenAnErrorHappensInStrategy()
{
executionStrategy.Setup(o => o.ExecuteAsync(It.IsAny <Action <IProducerConsumerContext <object> > >(), It.IsAny <CancellationToken>()))
.ThrowsAsync(new Exception("An exception occurred"));
using var cancellationSource = new CancellationSource();
using var target = new ScheduledProducerEngine <object>(executionStrategy.Object, cancellationSourceFactory.Object, errorHandler.Object, scheduler.Object, new ScheduledEngineOptions());
cancellationSourceFactory.Setup(o => o.Create(It.IsAny <CancellationToken>())).Returns(cancellationSource);
target.Initialize(context => { }, CancellationToken.None);
await target.StartAsync();
cancellationSource.RequestCancellationAfter(TimeSpan.FromSeconds(5));
await target.WaitForCompletionAsync();
errorHandler.Verify(o => o.Handle(It.IsAny <Exception>(), ErrorSeverityLevel.NonFatal), Times.AtLeastOnce);
}
public async Task RunsTheExecutionStrategy()
{
executionStrategy.Setup(o => o.ExecuteAsync(It.IsAny <Action <IProducerConsumerContext <object> > >(), It.IsAny <CancellationToken>()))
.ReturnsAsync(false);
using var cancellationSource = new CancellationSource();
using var target = new ScheduledProducerEngine <object>(executionStrategy.Object, cancellationSourceFactory.Object, errorHandler.Object, scheduler.Object, new ScheduledEngineOptions());
cancellationSourceFactory.Setup(o => o.Create(It.IsAny <CancellationToken>())).Returns(cancellationSource);
target.Initialize(context => { }, CancellationToken.None);
await target.StartAsync();
cancellationSource.RequestCancellationAfter(TimeSpan.FromSeconds(5));
await target.WaitForCompletionAsync();
executionStrategy.Verify(o => o.ExecuteAsync(It.IsAny <Action <IProducerConsumerContext <object> > >(),
It.IsAny <CancellationToken>()), Times.AtLeastOnce);
}
