public void TestCallsAllTransformers()
{
SourceModel source = new SourceModel();
IntermediateModel intermediate = new IntermediateModel();
Mock <ITransformer <SourceModel, IntermediateModel> > leftTransformerMock = new Mock <ITransformer <SourceModel, IntermediateModel> >();
Mock <ITransformer <IntermediateModel, DestinationModel> > rightTransformerMock = new Mock <ITransformer <IntermediateModel, DestinationModel> >();
leftTransformerMock.Setup(_ => _.Transform(source)).Returns(intermediate).Verifiable();
rightTransformerMock.Setup(_ => _.Transform(intermediate)).Returns(new DestinationModel()).Verifiable();
ITransformer <SourceModel, DestinationModel> tranformer =
new TransformerPipeline <SourceModel, IntermediateModel, DestinationModel>(
leftTransformerMock.Object,
rightTransformerMock.Object
);
tranformer.Transform(source);
leftTransformerMock.Verify(_ => _.Transform(source), Times.Once);
rightTransformerMock.Verify(_ => _.Transform(intermediate), Times.Once);
}
public void TestReturnsDataFromLastTransformer()
{
Mock <ITransformer <SourceModel, IntermediateModel> > leftTransformerMock = new Mock <ITransformer <SourceModel, IntermediateModel> >();
Mock <ITransformer <IntermediateModel, DestinationModel> > rightTransformerMock = new Mock <ITransformer <IntermediateModel, DestinationModel> >();
SourceModel sourceData = new SourceModel();
IntermediateModel intermediateData = new IntermediateModel();
DestinationModel destinationData = new DestinationModel();
leftTransformerMock.Setup(_ => _.Transform(sourceData)).Returns(intermediateData);
rightTransformerMock.Setup(_ => _.Transform(intermediateData)).Returns(destinationData);
ITransformer <SourceModel, DestinationModel> tranformer =
new TransformerPipeline <SourceModel, IntermediateModel, DestinationModel>(
leftTransformerMock.Object,
rightTransformerMock.Object
);
DestinationModel resultData = tranformer.Transform(sourceData);
Assert.AreEqual(destinationData, resultData);
}
