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Telerik JustMock

Mock Delegates

  • JustMock enables you to use mock delegates in your favorite .NET language.
  • Part of the fastest, most flexible and complete mocking tool for crafting unit tests.
  • Our award-winning support team is available to assist you with any issues.
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  • Mocking Delegates Overview

    JustMock allows you to use the framework's full capabilities for mocking delegates in your favorite .NET language, whether it is C# or VB. For example, you can arrange a delegate behavior with predefined expectations and assert against its invocation.

  • Return a Predefined Value

    When you isolate your test case from a call to a delegate, a common requirement is that the delegate returns a predefined value. 

    public class Foo 
    

    { 
    

        public Func<int, int> FuncDelegate { get; set; } 
    

      
    

        public int GetInteger(int toThisInt) 
    

        { 
    

            return FuncDelegate(toThisInt); 
    

        } 
    

    }
    

     
    

    ...
    

     
    

    [TestMethod]
    

    public void ShouldArrangeReturnExpectation()
    

    {
    

        // ARRANGE
    

        // Creating a mock instance of the Func<int, int> delegate.
    

        var delegateMock = Mock.Create<Func<int, int>>();
    

         
    

        // Arranging:   When the mock is called with 10 as an integer argument, 
    

        //              it should return 20.
    

        Mock.Arrange(() => delegateMock(10)).Returns(20);
    

     
    

        // ACT
    

        var foo = new Foo();
    

        // Assigning the mock to the dependent property.
    

        foo.FuncDelegate = delegateMock;
    

        var actual = foo.GetInteger(10);
    

         
    

        // ASSERT
    

        Assert.AreEqual(20, actual);
    

    }

    Mock delegates documentation
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