Monkeypatch satellite call for merge request in tests

app/controllers/merge_requests_controller.rb

+require 'gitlab/satellite/satellite'
+
 class MergeRequestsController < ProjectResourceController
   before_filter :module_enabled
   before_filter :merge_request, only: [:edit, :update, :show, :commits, :diffs, :automerge, :automerge_check, :ci_status]

spec/support/stubbed_repository.rb

 require "repository"
 require "project"
+require "merge_request"
 require "shell"
 
 # Stubs out all Git repository access done by models so that specs can run
@@ -32,6 +33,12 @@ class Project
   end
 end
 
+class MergeRequest
+  def can_be_merged
+    true
+  end
+end
+
 class GitLabTestRepo < Repository
   def repo
     @repo ||= Grit::Repo.new(Rails.root.join('tmp', 'repositories', 'gitlabhq'))