Add test for allowed team name of slack.

spec/models/slack_service_spec.rb

@@ -77,5 +77,25 @@
         WebMock.should have_requested(:post, api_url).once
       end
     end
+
+    context 'with new webhook syntax with slack allowed team name' do
+      before do
+        @allowed_webhook = 'https://gitlab-hq-123.slack.com/services/hooks/incoming-webhook?token=cdIj4r4LfXUOySDUjp0tk3OI'
+        slack_service.stub(
+          project: project,
+          project_id: project.id,
+          service_hook: true,
+          webhook: @allowed_webhook
+        )
+
+        WebMock.stub_request(:post, @allowed_webhook)
+      end
+
+      it "should call Slack API" do
+        slack_service.execute(sample_data)
+
+        WebMock.should have_requested(:post, @allowed_webhook).once
+      end
+    end
   end
 end