public void ShouldNotAllowToExecuteIfProcessingEngineIsNull()
{
// Given
var command = new StartImageProcessingCommand(null);
// When
// Then
Assert.IsFalse(command.CanExecute());
}
public void ShouldNotAllowToStartIfAlreadyStarted()
{
// Given
var processingEngineMock = new Mock <IProcessingEngine>();
processingEngineMock.Setup(s => s.IsWorking()).Returns(true);
var processingServiceMock = new Mock <IProcessingService>();
processingServiceMock.SetupGet(ps => ps.ProcessingEngine).Returns(processingEngineMock.Object);
var command = new StartImageProcessingCommand(processingServiceMock.Object);
// When
// Then
Assert.IsFalse(command.CanExecute());
}
public void ShouldAllowToStartNotStartedProcessingEngine()
{
// Given
var processingEngineMock = new Mock <IProcessingEngine>();
var processingServiceMock = new Mock <IProcessingService>();
processingServiceMock.SetupGet(ps => ps.ProcessingEngine).Returns(processingEngineMock.Object);
var command = new StartImageProcessingCommand(processingServiceMock.Object);
// When
command.Execute();
// Then
processingEngineMock.Verify(s => s.Start(), Times.Once);
}