How to fake delegates with FakeItEasy

Question

When i try to fake a delegate-type, i get System.InvalidCastException

[TestMethod]
public void TestDelegateFake()
{
    var func = A.Fake<Func<long, object>>();

    A.CallTo(() => func(A<long>.Ignored))
        .Returns(new {});

    func(123);
}

How du i fake delegates?

Godber

Answer 1

I think you have to specify the Invoke-method explicitly:

A.CallTo(() => func.Invoke(A<long>.Ignored)).Returns(new {});

Charteris

I have fixed this in the latest version nuget.org/packages/FakeItEasy/1.7.4582.63 – Sebbie

The posted fix worked without the call to Invoke. I think that is more intuitive - thx. – Godber