public void Process_will_throw_if_an_null_task_is_passed()
{
_taskDispatcherMock
.Setup(x => x.GetTask())
.Returns((string)null);
_instrumentMock
.Setup(x => x.Execute(null))
.Throws <ArgumentNullException>();
Action action = () => _sut.Process();
action.Should().Throw <ArgumentNullException>();
}
public void RequesTheNextTaskWhenProcessIsCalled()
{
Mock <ITaskDispatcher> taskDispatcherMock = new Mock <ITaskDispatcher>();
Mock <IInstrument> instrumentMock = new Mock <IInstrument>();
var instrumentProcessor = new InstrumentProcessor(taskDispatcherMock.Object, instrumentMock.Object);
instrumentProcessor.Process();
taskDispatcherMock.Verify(x => x.GetTask(), Times.Once());
}
public void CallGetTaskOnTheTaskDispatcher_WhenProcessingTask()
{
var taskDispatcher = Substitute.For <ITaskDispatcher>();
var instrument = Substitute.For <IInstrument>();
var instrumentProcessor = new InstrumentProcessor(taskDispatcher, instrument);
instrumentProcessor.Process();
taskDispatcher.Received(1).GetTask();
}
public void ThrowAnExceptionOnExecuteMethodToProcessCall()
{
Mock <ITaskDispatcher> taskDispatcherMock = new Mock <ITaskDispatcher>();
Mock <IInstrument> instrumentMock = new Mock <IInstrument>();
taskDispatcherMock.Setup(x => x.GetTask()).Throws <Exception>();
var instrumentProcessor = new InstrumentProcessor(taskDispatcherMock.Object, instrumentMock.Object);
Assert.Throws <Exception>(() => instrumentProcessor.Process());
}
public void CallTheInstrumentWithTheCorrectTask()
{
var taskDispatcher = new TaskDispatcherStub();
var instrumentMock = new Mock <IInstrument>();
var instrumentProcessor = new InstrumentProcessor(taskDispatcher, instrumentMock.Object);
instrumentProcessor.Process();
instrumentMock.Verify(x => x.Execute("stub test"));
}
public void when_the_Execute_method_of_the_instrument_throws_an_exception_then_this_exception_is_passed_on_to_the_caller_of_the_Process_method()
{
////Arrange
var instrument = new Mock<IInstrument>();
var taskDispatcher = new Mock<ITaskDispatcher>();
var instrumentProcessor = new InstrumentProcessor(instrument.Object, taskDispatcher.Object, new Mock<IConsole>().Object);
instrument.Setup(i => i.Execute(It.IsAny<string>())).Throws(new Exception());
////Act
instrumentProcessor.Process();
////Assert
}
public void CallExecuteOnAnInstrumentToProcessATaskWhenProcessMethodIsCalled()
{
Mock <ITaskDispatcher> taskDispatcherMock = new Mock <ITaskDispatcher>();
Mock <IInstrument> instrumentMock = new Mock <IInstrument>();
taskDispatcherMock.Setup(x => x.GetTask()).Returns("");
var instrumentProcessor = new InstrumentProcessor(taskDispatcherMock.Object, instrumentMock.Object);
instrumentProcessor.Process();
instrumentMock.Verify(x => x.Execute(string.Empty), Times.Once());
}
public void ReturnTaskFinished_WhenProcessing_ASuccessfulTask()
{
var taskDispatcher = Substitute.For <ITaskDispatcher>();
taskDispatcher.GetTask().Returns("Success");
var instrument = Substitute.For <IInstrument>();
instrument.When(i => i.Execute("Success")).Do(i => instrument.Finished += Raise.EventWith(new InstrumentProcessEventArgs("Success")));
var instrumentProcessor = new InstrumentProcessor(taskDispatcher, instrument);
instrumentProcessor.Process();
instrument.Received(1).Execute("Success");
}
public void RaiseErrorEvent_WhenProcessing_AnTaskWhichShouldError()
{
var taskDispatcher = Substitute.For <ITaskDispatcher>();
taskDispatcher.GetTask().Returns("ShouldError");
var instrument = Substitute.For <IInstrument>();
instrument.When(i => i.Execute("ShouldError")).Do(i => instrument.Error += Raise.EventWith(new InstrumentProcessEventArgs("ShouldError")));
var instrumentProcessor = new InstrumentProcessor(taskDispatcher, instrument);
instrumentProcessor.Process();
instrument.Received(1).Execute("ShouldError");
}
public void ThrowANullReferenceException_WhenGivenANullTask()
{
var taskDispatcher = Substitute.For <ITaskDispatcher>();
taskDispatcher.GetTask().Returns((string)null);
var instrument = Substitute.For <IInstrument>();
instrument.When(x => x.Execute(null)).Do(x => throw new NullReferenceException());
var instrumentProcessor = new InstrumentProcessor(taskDispatcher, instrument);
Action process = () => instrumentProcessor.Process();
process.Should().Throws <ArgumentNullException>();
}
public void CallTheTaskDispatcherFinishedTaskWithTheCorrectTask()
{
var testTask = "stub test";
var taskDispatcherMock = new Mock <ITaskDispatcher>();
taskDispatcherMock.Setup(x => x.GetTask()).Returns(testTask);
var instrumentStub = new InstrumentStub();
var instrumentProcessor = new InstrumentProcessor(taskDispatcherMock.Object, instrumentStub);
instrumentProcessor.Process();
taskDispatcherMock.Verify(x => x.FinishedTask(testTask));
}
public void CallTaskDispatcher_WithCorrectTaskName_WhenSuccessfullyFinishingATask()
{
var taskDispatcher = Substitute.For <ITaskDispatcher>();
taskDispatcher.GetTask().Returns("GoodTask");
var instrument = Substitute.For <IInstrument>();
instrument.When(i => i.Execute("GoodTask")).Do(i => instrument.Finished += Raise.EventWith(new InstrumentProcessEventArgs("GoodTask")));
var instrumentProcessor = new InstrumentProcessor(taskDispatcher, instrument);
instrumentProcessor.Process();
instrument.Received(1).Execute("GoodTask");
taskDispatcher.Received(1).FinishedTask("GoodTask");
}
public void when_the_method_Process_is_called_then_the_InstrumentProcessor_gets_the_next_task_from_the_task_dispatcher_and_executes_it_on_the_instrument()
{
////Arrange
var instrument = Substitute.For<IInstrument>();
var taskDispatcher = Substitute.For<ITaskDispatcher>();
var instrumentProcessor = new InstrumentProcessor(instrument, taskDispatcher, Substitute.For<IConsole>());
var message = Guid.NewGuid().ToString();
taskDispatcher.GetTask().Returns(message);
////Act
instrumentProcessor.Process();
////Assert
instrument.Received().Execute(message);
}
public void when_the_instrument_fires_the_Finished_event_then_the_InstrumentProcessor_calls_the_task_dispatchers_FinishedTask_method_with_the_correct_task()
{
////Arrange
var instrument = new Mock<IInstrument>();
var taskDispatcher = new Mock<ITaskDispatcher>();
var instrumentProcessor = new InstrumentProcessor(instrument.Object, taskDispatcher.Object, new Mock<IConsole>().Object);
var message = Guid.NewGuid().ToString();
taskDispatcher.Setup(d => d.GetTask()).Returns(message);
instrument.Setup(i => i.Execute(message)).Raises(i => i.Finished += null, EventArgs.Empty);
////Act
instrumentProcessor.Process();
////Assert
taskDispatcher.Verify(t => t.FinishedTask(message), Times.Once());
}
public void when_the_instrument_fires_the_Error_event_then_the_InstrumentProcessor_writes_the_string_Error_occurred_to_the_console()
{
////Arrange
var instrument = new Mock<IInstrument>();
var taskDispatcher = new Mock<ITaskDispatcher>();
var console = new Mock<IConsole>();
var instrumentProcessor = new InstrumentProcessor(instrument.Object, taskDispatcher.Object, console.Object);
var message = Guid.NewGuid().ToString();
taskDispatcher.Setup(d => d.GetTask()).Returns(message);
instrument.Setup(i => i.Execute(message)).Raises(i => i.Error += null, EventArgs.Empty);
////Act
instrumentProcessor.Process();
////Assert
console.Verify(c => c.WriteLine(message));
}
public void OnSuccess_InvokeFinishTask()
{
var taskDispatcher = new Mock <ITaskDispatcher>();
var instrument = new Mock <IInstrument>();
var instrumentProcessor = new InstrumentProcessor(taskDispatcher.Object, instrument.Object);
taskDispatcher
.Setup(theTaskDispatcher => theTaskDispatcher.GetTask())
.Returns("task 1");
instrument
.Setup(theInstrument => theInstrument.Execute("task 1"))
.Raises(theInstrument => theInstrument.Finished += null, new FinishedEventArgs("task 1"));
instrumentProcessor.Process();
taskDispatcher.Verify(theTaskDispatcher => theTaskDispatcher.FinishedTask("task 1"), Times.Once());
}
public void when_the_instrument_fires_the_Finished_event_then_the_InstrumentProcessor_calls_the_task_dispatchers_FinishedTask_method_with_the_correct_task_multiple()
{
////Arrange
var instrument = new Mock<IInstrument>();
var taskDispatcher = new Mock<ITaskDispatcher>();
var instrumentProcessor = new InstrumentProcessor(instrument.Object, taskDispatcher.Object, new Mock<IConsole>().Object);
////Act
var messages = new Queue<string>();
for (int i1 = 0; i1 < 10; i1++)
{
var message = Guid.NewGuid().ToString();
messages.Enqueue(message);
taskDispatcher.Setup(d => d.GetTask()).Returns(message);
instrumentProcessor.Process();
}
////Assert
for (int i2 = 0; i2 < 10; i2++)
{
instrument.Raise(i => i.Finished += null, EventArgs.Empty);
////TODO: Hm, doesn't work inline...
var message = messages.Dequeue();
taskDispatcher.Verify(t => t.FinishedTask(message), Times.Once());
}
}
public void when_the_method_Process_is_called_then_the_InstrumentProcessor_gets_the_next_task_from_the_task_dispatcher_and_executes_it_on_the_instrument()
{
////Arrange
var instrument = new Mock<IInstrument>();
var taskDispatcher = new Mock<ITaskDispatcher>();
var instrumentProcessor = new InstrumentProcessor(instrument.Object, taskDispatcher.Object, new Mock<IConsole>().Object);
var message = Guid.NewGuid().ToString();
taskDispatcher.Setup(d => d.GetTask()).Returns(message);
////Act
instrumentProcessor.Process();
////Assert
instrument.Verify(i => i.Execute(message), Times.Once());
}
public void request_a_task_from_despatcher_when_processing()
{
_instrumentProcessor.Process();
_taskDispatcher.Verify(t => t.GetTask());
}
