message: Reduce test lines of code
diff: @@ -5,70 +5,16 @@ import RoomItem from '../app/components/RoomItem';
  // Note: test renderer must be required after react-native.
  import renderer from 'react-test-renderer';
  -jest.mock('react-native-img-cache', () => {
  - return {
  - CachedImage: 'View'
  - }
  -});
  +jest.mock('react-native-img-cache', () => { return { CachedImage: 'View' } });
  it('renders correctly', () => {
  - const tree = renderer.create(
  - <RoomItem
  - type="d"
  - name="name"
  - />
  - ).toJSON();
  - expect(tree).toMatchSnapshot();
  + expect(renderer.create(<RoomItem type="d" name="name" />).toJSON()).toMatchSnapshot();
  });
  it('render unread', () => {
  - const tree = renderer.create(
  - <RoomItem
  - type="d"
  - name="name"
  - unread={1}
  - />
  - ).toJSON();
  - expect(tree).toMatchSnapshot();
  + expect(renderer.create(<RoomItem type="d" name="name" unread={1} />).toJSON()).toMatchSnapshot();
  });
  it('render unread +999', () => {
  - const tree = renderer.create(
  - <RoomItem
  - type="d"
  - name="name"
  - unread={1000}
  - />
  - ).toJSON();
  - expect(tree).toMatchSnapshot();
  -});
  -
  -it('render no icon', () => {
  - const tree = renderer.create(
  - <RoomItem
  - type="X"
  - name="name"
  - />
  - ).toJSON();
  - expect(tree).toMatchSnapshot();
  -});
  -
  -it('render private group', () => {
  - const tree = renderer.create(
  - <RoomItem
  - type="g"
  - name="private-group"
  - />
  - ).toJSON();
  - expect(tree).toMatchSnapshot();
  -});
  -
  -it('render channel', () => {
  - const tree = renderer.create(
  - <RoomItem
  - type="c"
  - name="general"
  - />
  - ).toJSON();
  - expect(tree).toMatchSnapshot();
  + expect(renderer.create(<RoomItem type="d" name="name" unread={1000} />).toJSON()).toMatchSnapshot();
  });
  