Add unlike test

spec/acceptance/learning_objects_spec.rb

@@ -46,4 +46,22 @@ resource 'Learning Objects' do
     end
   end
 
+  delete '/v1/learning_objects/:id/like' do
+    include_context "authenticate_user"
+
+    let(:id) { learning_objects.first.id }
+  
+    before do
+      create(:like, user: @user, likeable: learning_objects.first)
+    end
+
+    example 'Unliking a learning object' do
+      likes = learning_objects.first.likes.count
+      do_request
+      expect(path).to eq("/v1/learning_objects/#{id}/like")
+      expect(JSON.parse(response_body)['count']).to eq(likes - 1)
+      expect(status).to eq(200)
+    end
+  end
+
 end

spec/shared/contexts.rb

@@ -9,7 +9,8 @@ RSpec.shared_context "authenticate_user", shared_context: :metadata do
   let(:access_token) { @auth_headers['access-token'] }
 
   before do
-    @auth_headers = create(:user).create_new_auth_token
+    @user = create(:user) 
+    @auth_headers = @user.create_new_auth_token
   end
 
 end