private static DynamicFunctionTransform CreateSubject(FunctionPickerData functionPickerData = null, ExportLinkResolver exportLinkResolver = null)
 {
     exportLinkResolver = exportLinkResolver ?? new Mock<ExportLinkResolver>(null).Object;
     return new DynamicFunctionTransform(CreateSerializer(functionPickerData), exportLinkResolver);
 }
 private static ComposerSerializer CreateSerializer(FunctionPickerData functionPickerData)
 {
     var serializer = new Mock<ComposerSerializer>();
     serializer.Setup(x => x.Deserialize<FunctionPickerData>(It.IsAny<string>())).Returns(functionPickerData);
     return serializer.Object;
 }