Mock a method in another static class c#

Question

I want to ask the best way how to mock static a method in an another class. I know that mock is not working for a static class. Here is my Code so far. I don't want to call SearchSomething() at the time because it's external interaction

public ResponseBase GetData(string searchId)
    {
        try
        {
            var request = new SearchRequest 
            {
                SearchId = searchId
            };
            var response = SearchLogic.SearchSomething(request);
            return response;
        }
        catch (Exception e)
        {
            return ResponseBase.ExceptionHandling(e);
        }
    }

public class SearchLogic(){
    public static ResponseBase SearchSomething(SearchRequest request)
    {
        //Do Something
        return  new ResponseBase;
    }
}

This is my UnitClass

[TestClass]
public class UnitClass
{

    [TestMethod]
    public void PositiveSearchTest()
    {
        //arrange
        string searchId = "name";
        var expected = new SearchRequest();
        SearchtController search = new SearchtController();

        var staticMock = new Mock<SearchLogic>();
        staticMock.Setup(s => s.SearchSomething()).Returns(new ResponseBase());

        //act
         var actual = search.GetData(searchId);

        //assert
         Assert.AreEqual(actual, expected);
    }
}

Possible duplicate of [Mocking Static Methods](http://stackoverflow.com/questions/5864076/mocking-static-methods) — Mantas Čekanauskas, Apr 21 '17 at 05:29

score 1 · Answer 1 · edited May 23 '17 at 11:46

1

While this question gives one way to solve this, my preferred solution would be different: modify SearchLogic so it is no longer static. After that, you can then mock it to your heart's content. Static methods are always a complete pain for unit testing; I try to use them only for situations where there is one and only one correct behaviour.

This obviously assumes you have the ability to modify SearchLogic. If you don't, see the linked question.

edited May 23 '17 at 11:46

Community

1
1

answered Apr 21 '17 at 05:49

Philip Kendall

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I use static beacuse I use it in many places, so it's easy for me use static to make as a singleton – santro Apr 21 '17 at 06:27
If your DI framework doesn't make it trivial to inject an object into the places it's used, get a better DI framework :-) – Philip Kendall Apr 21 '17 at 06:45
I've change it so it no longer static. But can I mock the static method inside `SearchLogic`? – santro Apr 21 '17 at 07:34
Make an interface and mock the interface rather than mocking the concrete implementation. – Philip Kendall Apr 21 '17 at 10:38

Mock a method in another static class c#

1 Answers1