public async void ShouldWaitWithAcquiringNextImageUntilCurrentImageIsProcessed()
{
// Given
var engine = new SyncProcessingEngine(ImageProvider.Object, ImageProcessingChain.Object, ReceiveProcessedImageCommand.Object);
// When
await StartProcessingWaitForSpecifiedTimeAndWaitForEnd(engine, 1750);
// Then
Assert.AreEqual(2, TimesImageProviderCalled);
Assert.AreEqual(1, TimesImageProcessingChainCalled);
}
public async void ShouldNotProcessImageBeforeAcquiringIt()
{
// Given
var engine = new SyncProcessingEngine(ImageProvider.Object, ImageProcessingChain.Object, ReceiveProcessedImageCommand.Object);
// When
await StartProcessingWaitForSpecifiedTimeAndWaitForEnd(engine, 1);
// Then
Assert.AreEqual(1, TimesImageProviderCalled);
Assert.AreEqual(0, TimesImageProcessingChainCalled);
}
public async void ShouldSetOutputImageAfterProcessing()
{
// Given
var engine = new SyncProcessingEngine(ImageProvider.Object, ImageProcessingChain.Object, ReceiveProcessedImageCommand.Object);
// When
await StartProcessingWaitForSpecifiedTimeAndWaitForEnd(engine, 1750);
// Then
Assert.AreEqual(1, TimesImageProcessingChainCalled);
Assert.AreEqual(1, TimesReceiveProcessedImageCommandCalled);
}
public void ShouldNotAllowToStopNotStartedEngine()
{
// Given
var imageProvider = new Mock <IImageProvider>();
Image image;
imageProvider.Setup(ia => ia.TryToObtainImage(out image)).Callback(ImageProviderMockWork).Returns(true);
var engine = new SyncProcessingEngine(imageProvider.Object, ImageProcessingChain.Object, ReceiveProcessedImageCommand.Object);
// When
// Then
Assert.Throws <InvalidEngineStateException>(async() => await engine.Stop());
}
public async void ShouldInformAboutNotWorkingWhenNoThreadRunning()
{
// Given
var imageProvider = new Mock <IImageProvider>();
Image image;
imageProvider.Setup(ia => ia.TryToObtainImage(out image)).Callback(ImageProviderMockWork).ReturnsInOrder(true, false);
var engine = new SyncProcessingEngine(imageProvider.Object, ImageProcessingChain.Object, ReceiveProcessedImageCommand.Object);
// When
await engine.Start();
// Then
Assert.IsFalse(engine.IsWorking());
}
public async void ShouldStopWorkingAfterNoImageWasObtained()
{
// Given
Image image;
var imageProvider = new Mock <IImageProvider>();
imageProvider.Setup(i => i.TryToObtainImage(out image)).Callback(ImageProviderMockWork).Returns(false);
var engine = new SyncProcessingEngine(imageProvider.Object, ImageProcessingChain.Object, ReceiveProcessedImageCommand.Object);
// When
await StartProcessingWaitForSpecifiedTimeAndWaitForEnd(engine, 2500);
// Then
Assert.AreEqual(1, TimesImageProviderCalled);
Assert.AreEqual(0, TimesImageProcessingChainCalled);
}
