Telerik JustMock

Mock Local Functions

JustMock makes isolating your unit test from a dependency to a local function an easy task, allowing you to mock it. In most cases, mocking local functions is similar to mocking class methods.
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Mocking Local Functions Overview

A local function is a private function whose scope is limited to the scope of the function in which it is created. The local function can be called only within the container member and with this—a dependency to the container member.

JustMock makes isolating your unit test from the local function an easy task, allowing you to mock it. In most cases, mocking local functions is similar to mocking class methods.

class Foo 
{ 
    public int GetResult() 
    { 
        return 100 + GetLocal(); 
        int GetLocal () 
        { 
            return 42; 
        } 
    } 
} 
 
...
 
[TestClass] 
public class MockLocalFunctions 
{ 
    [TestMethod] 
    public void BasicUsage() 
    { 
        //Arrange 
        var sut = Mock.Create<Foo>(Behavior.CallOriginal); 
        Mock.Local.Function.Arrange<int>(sut, "GetResult", "GetLocal").DoNothing(); 
  
        //Act 
        var result = sut. GetResult(); 
  
        //Assert 
        Assert.AreEqual(100, result); 
    } 
}

Mock local functions documentation

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Mock Local Functions

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