Workflow Foundation - Literal only supports value types and the immutable type System.String

Question

I have the following unit test for a WF code activity called MyCodeActivity:

[ExpectedException(typeof(ArgumentException))]
[TestMethod]
public void ShouldRe         


        

Answer 1

To fix the immediate problem:

MyComplexObject = _complexObject

to

MyComplexObject = new InArgument<MyComplexObject>((ctx) => _complexObject)

Further reading : http://msdn.microsoft.com/en-us/library/ee358749.aspx .

Note: You should also use the Microsoft.Activities.UnitTesting package available on NuGet. It makes IOC alot easier (seeing as WF works with the Service Locator pattern and not Dependency Injection)