WikiEducationFoundation/WikiEduDashboard

import deepFreeze from 'deep-freeze';
import '../testHelper';
import reducer from '../../app/assets/javascripts/reducers/user_courses.js';
import { RECEIVE_USER_COURSES } from '../../app/assets/javascripts/constants';

describe('Did you know reducer menu reducer', () => {
  test('should return the initial state', () => {
    const initialState = {
      userCourses: [],
      loading: true
    };
    deepFreeze(initialState);

    expect(reducer(undefined, {})).toEqual(initialState);
  });

  test('should update array with new user course', () => {
    const newCourses = [{ id: 1, title: 'Test - Test (test-1)' }];
    const oldCourses = [{ id: 2, title: 'Test - Test (test-2)' }];

    const initialState = {
      userCourses: oldCourses,
      loading: false
    };
    deepFreeze(initialState);

    expect(
      reducer(initialState, {
        type: RECEIVE_USER_COURSES,
        payload: {
          data: { courses: newCourses }
        }
      })
    ).toEqual({
      userCourses: newCourses,
      loading: false
    });
  });
});