public void ShouldSubscribeToUnderlyingSourceOnSubscribe()
{
IMessageSource<TestMessage> source = A.Fake<IMessageSource<TestMessage>>();
IMessageSource<TestMessage> sourceConverter = new MessageSourceConverter<TestMessage, TestMessage>(source, A.Fake<IMessageConverter<TestMessage, TestMessage>>());
IObserver<TestMessage> consumer = A.Fake<IObserver<TestMessage>>();
sourceConverter.Messages.Subscribe(consumer);
A.CallTo(() => source.Messages.Subscribe(A<IObserver<TestMessage>>.Ignored)).MustHaveHappened(Repeated.Exactly.Once);
}
public void ShouldSubscribeToUnderlyingSourceOnSubscribe()
{
IMessageSource <TestMessage> source = A.Fake <IMessageSource <TestMessage> >();
IMessageSource <TestMessage> sourceConverter = new MessageSourceConverter <TestMessage, TestMessage>(source, A.Fake <IMessageConverter <TestMessage, TestMessage> >());
IObserver <TestMessage> consumer = A.Fake <IObserver <TestMessage> >();
sourceConverter.Messages.Subscribe(consumer);
A.CallTo(() => source.Messages.Subscribe(A <IObserver <TestMessage> > .Ignored)).MustHaveHappened(Repeated.Exactly.Once);
}
public void ShouldNotPublishInvalidMessages()
{
IMessageSource <TestMessage> source = A.Fake <IMessageSource <TestMessage> >();
IMessageConverter <TestMessage, TestMessage> converter = A.Fake <IMessageConverter <TestMessage, TestMessage> >();
IMessageSource <TestMessage> sourceConverter = new MessageSourceConverter <TestMessage, TestMessage>(source, converter);
IObserver <TestMessage> internalObserver = null;
IObserver <TestMessage> consumer = A.Fake <IObserver <TestMessage> >();
TestMessage message = new TestMessage();
A.CallTo(() => source.Messages.Subscribe(A <IObserver <TestMessage> > .Ignored)).Invokes(call => internalObserver = call.GetArgument <IObserver <TestMessage> >(0));
A.CallTo(() => converter.Convert(message)).Returns(null);
sourceConverter.Messages.Subscribe(consumer);
internalObserver.OnNext(message);
A.CallTo(() => converter.Convert(message)).MustHaveHappened(Repeated.Exactly.Once);
A.CallTo(() => consumer.OnNext(A <TestMessage> .Ignored)).MustNotHaveHappened();
}
public void ShouldNotPublishInvalidMessages()
{
IMessageSource<TestMessage> source = A.Fake<IMessageSource<TestMessage>>();
IMessageConverter<TestMessage, TestMessage> converter = A.Fake<IMessageConverter<TestMessage, TestMessage>>();
IMessageSource<TestMessage> sourceConverter = new MessageSourceConverter<TestMessage, TestMessage>(source, converter);
IObserver<TestMessage> internalObserver = null;
IObserver<TestMessage> consumer = A.Fake<IObserver<TestMessage>>();
TestMessage message = new TestMessage();
A.CallTo(() => source.Messages.Subscribe(A<IObserver<TestMessage>>.Ignored)).Invokes(call => internalObserver = call.GetArgument<IObserver<TestMessage>>(0));
A.CallTo(() => converter.Convert(message)).Returns(null);
sourceConverter.Messages.Subscribe(consumer);
internalObserver.OnNext(message);
A.CallTo(() => converter.Convert(message)).MustHaveHappened(Repeated.Exactly.Once);
A.CallTo(() => consumer.OnNext(A<TestMessage>.Ignored)).MustNotHaveHappened();
}
