Mocking objects with Moq when constructor has parameters

moq
Andrew Connell picture Andrew Connell · Sep 14, 2011 · Viewed 93.2k times · Source

I have an object I'm trying to mock using moq. The object's constructor has required parameters:

public class CustomerSyncEngine {
    public CustomerSyncEngine(ILoggingProvider loggingProvider, 
                              ICrmProvider crmProvider, 
                              ICacheProvider cacheProvider) { ... }
}

Now I'm trying to create the mock for this object using either moq's v3 "setup" or v4 "Mock.Of" syntax but can't figure this out... everything I'm trying isn't validating. Here's what I have so far, but the last line is giving me a real object, not the mock. The reason I'm doing this is because I have methods on the CustomerSyncEngine I want to verify are being called...

// setup
var mockCrm = Mock.Of<ICrmProvider>(x => x.GetPickLists() == crmPickLists);
var mockCache = Mock.Of<ICacheProvider>(x => x.GetPickLists() == cachePickLists);
var mockLogger = Mock.Of<ILoggingProvider>();

// need to mock the following, not create a real class like this...
var syncEngine = new CustomerSyncEngine(mockLogger, mockCrm, mockCache);

Answer

Suhas picture Suhas · Jul 9, 2012

Change the last line to

var syncEngine = new Mock<CustomerSyncEngine>(mockLogger, mockCrm, mockCache).Object;

and it should work

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