gitlab-org--gitlab-foss/spec/frontend/boards/board_blank_state_spec.js

import Vue from 'vue';
import boardsStore from '~/boards/stores/boards_store';
import BoardBlankState from '~/boards/components/board_blank_state.vue';

describe('Boards blank state', () => {
  let vm;
  let fail = false;

  beforeEach(done => {
    const Comp = Vue.extend(BoardBlankState);

    boardsStore.create();

    jest.spyOn(boardsStore, 'addList').mockImplementation();
    jest.spyOn(boardsStore, 'removeList').mockImplementation();
    jest.spyOn(boardsStore, 'generateDefaultLists').mockImplementation(
      () =>
        new Promise((resolve, reject) => {
          if (fail) {
            reject();
          } else {
            resolve({
              data: [
                {
                  id: 1,
                  title: 'To Do',
                  label: { id: 1 },
                },
                {
                  id: 2,
                  title: 'Doing',
                  label: { id: 2 },
                },
              ],
            });
          }
        }),
    );

    vm = new Comp();

    setImmediate(() => {
      vm.$mount();
      done();
    });
  });

  it('renders pre-defined labels', () => {
    expect(vm.$el.querySelectorAll('.board-blank-state-list li').length).toBe(2);

    expect(vm.$el.querySelectorAll('.board-blank-state-list li')[0].textContent.trim()).toEqual(
      'To Do',
    );

    expect(vm.$el.querySelectorAll('.board-blank-state-list li')[1].textContent.trim()).toEqual(
      'Doing',
    );
  });

  it('clears blank state', done => {
    vm.$el.querySelector('.btn-default').click();

    setImmediate(() => {
      expect(boardsStore.welcomeIsHidden()).toBeTruthy();

      done();
    });
  });

  it('creates pre-defined labels', done => {
    vm.$el.querySelector('.btn-success').click();

    setImmediate(() => {
      expect(boardsStore.addList).toHaveBeenCalledTimes(2);
      expect(boardsStore.addList).toHaveBeenCalledWith(expect.objectContaining({ title: 'To Do' }));

      expect(boardsStore.addList).toHaveBeenCalledWith(expect.objectContaining({ title: 'Doing' }));

      done();
    });
  });

  it('resets the store if request fails', done => {
    fail = true;

    vm.$el.querySelector('.btn-success').click();

    setImmediate(() => {
      expect(boardsStore.welcomeIsHidden()).toBeFalsy();
      expect(boardsStore.removeList).toHaveBeenCalledWith(undefined, 'label');

      done();
    });
  });
});