title: Golang Mocking - problems with type collision
body: <p>I'm mocking out a DataStore and it's Get/Set functionality. The trouble I'm having is: cannot use s (type *MockStore) as type *datastore.Storage in argument to EventHandler</p>
  
  <p>This is caused by my EventHandler function needing to be passed a *datastore.Storage as an argument type. I want to Test (http test) EvenHandler() using the MockStore I've created instead of the real datastore. I'm using the golang testify mock package. </p>
  
  <p>Some Code Examples</p>
  
  <pre><code>type MockStore struct{
    mock.Mock
  }
  
  func (s *MockStore) Get() ... 
  
  func EventHandler(w http.ResponseWriter, r *http.Request, bucket *datastore.Storage){
    //Does HTTP stuff and stores things in a data store
    // Need to mock out the data store get/sets
  }
  
  // Later in my Tests
  ms := MockStore
  EventHandler(w,r,ms)
  </code></pre>