grafana/public/app/core/reducers/navModel.test.ts

import { reducerTester } from '../../../test/core/redux/reducerTester';
import { initialState, navIndexReducer, updateNavIndex } from './navModel';

describe('applicationReducer', () => {
  describe('when updateNavIndex is dispatched', () => {
    it('then state should be correct', () => {
      reducerTester()
        .givenReducer(navIndexReducer, { ...initialState })
        .whenActionIsDispatched(
          updateNavIndex({
            id: 'parent',
            text: 'Some Text',
            children: [
              {
                id: 'child',
                text: 'Child',
              },
            ],
          })
        )
        .thenStateShouldEqual({
          ...initialState,
          child: {
            id: 'child',
            text: 'Child',
            parentItem: {
              id: 'parent',
              text: 'Some Text',
              children: [
                {
                  id: 'child',
                  text: 'Child',
                },
              ],
            },
          },
        });
    });
  });
});