Hands on 4

[mjuniper]

Testing

1. If the app is not already running, run gulp serve.
2. Break a test! For instance, you might change the line in /test/spec/mapmanager.spec.js that reads expect(esri).toBeDefined(); to expect(esri).not.toBeDefined();
3. Note the nearly instant feedback in the terminal.
4. Fix the broken test.