signal-desktop/ts/test/components/media-gallery/groupMessagesByDate.ts

import 'mocha';
import { assert } from 'chai';

import { groupMessagesByDate } from
  '../../../components/conversation/media-gallery/groupMessagesByDate';
import { Message } from
  '../../../components/conversation/media-gallery/propTypes/Message';


const toMessage = (date: Date): Message => ({
  id: date.toUTCString(),
  received_at: date.getTime(),
  attachments: [],
});

describe('groupMessagesByDate', () => {
  it('should group messages', () => {
    const referenceTime = new Date('2018-04-12T18:00Z').getTime();
    const input: Array<Message> = [
      // Today
      toMessage(new Date('2018-04-12T12:00Z')),
      toMessage(new Date('2018-04-12T07:00Z')),
      toMessage(new Date('2018-04-12T00:01Z')),
      // This week
      toMessage(new Date('2018-04-11T23:59Z')),
      toMessage(new Date('2018-04-09T00:01Z')),
      // This month
      toMessage(new Date('2018-04-08T23:59Z')),
      toMessage(new Date('2018-04-05T09:00Z')),
      toMessage(new Date('2018-04-01T00:01Z')),
      // March 2018
      toMessage(new Date('2018-03-31T23:59Z')),
      toMessage(new Date('2018-03-28T14:00Z')),
      toMessage(new Date('2018-03-01T14:00Z')),
      // February 2011
      toMessage(new Date('2011-02-28T23:59Z')),
      toMessage(new Date('2011-02-15T10:00Z')),
      toMessage(new Date('2011-02-01T10:00Z')),
    ];

    const expected = {
      today: [
        {
          order: 0,
          label: 'today',
          message: {
            id: 'Thu, 12 Apr 2018 12:00:00 GMT',
            received_at: 1523534400000,
            attachments: [],
          },
        },
        {
          order: 0,
          label: 'today',
          message: {
            id: 'Thu, 12 Apr 2018 07:00:00 GMT',
            received_at: 1523516400000,
            attachments: [],
          },
        },
        {
          order: 0,
          label: 'today',
          message: {
            id: 'Thu, 12 Apr 2018 00:01:00 GMT',
            received_at: 1523491260000,
            attachments: [],
          },
        },
      ],
      yesterday: [
        {
          order: 1,
          label: 'yesterday',
          message: {
            id: 'Wed, 11 Apr 2018 23:59:00 GMT',
            received_at: 1523491140000,
            attachments: [],
          },
        },
      ],
      thisWeek: [
        {
          order: 2,
          label: 'thisWeek',
          message: {
            id: 'Mon, 09 Apr 2018 00:01:00 GMT',
            received_at: 1523232060000,
            attachments: [],
          },
        },
        {
          order: 2,
          label: 'thisWeek',
          message: {
            id: 'Sun, 08 Apr 2018 23:59:00 GMT',
            received_at: 1523231940000,
            attachments: [],
          },
        },
      ],
      thisMonth: [
        {
          order: 3,
          label: 'thisMonth',
          message: {
            id: 'Thu, 05 Apr 2018 09:00:00 GMT',
            received_at: 1522918800000,
            attachments: [],
          },
        },
        {
          order: 3,
          label: 'thisMonth',
          message: {
            id: 'Sun, 01 Apr 2018 00:01:00 GMT',
            received_at: 1522540860000,
            attachments: [],
          },
        },
      ],
      yearMonth: [
        {
          order: 201802,
          label: 'yearMonth',
          message: {
            id: 'Sat, 31 Mar 2018 23:59:00 GMT',
            received_at: 1522540740000,
            attachments: [],
          },
        },
        {
          order: 201802,
          label: 'yearMonth',
          message: {
            id: 'Wed, 28 Mar 2018 14:00:00 GMT',
            received_at: 1522245600000,
            attachments: [],
          },
        },
        {
          order: 201802,
          label: 'yearMonth',
          message: {
            id: 'Thu, 01 Mar 2018 14:00:00 GMT',
            received_at: 1519912800000,
            attachments: [],
          },
        },
        {
          order: 201101,
          label: 'yearMonth',
          message: {
            id: 'Mon, 28 Feb 2011 23:59:00 GMT',
            received_at: 1298937540000,
            attachments: [],
          },
        },
        {
          order: 201101,
          label: 'yearMonth',
          message: {
            id: 'Tue, 15 Feb 2011 10:00:00 GMT',
            received_at: 1297764000000,
            attachments: [],
          },
        },
        {
          order: 201101,
          label: 'yearMonth',
          message: {
            id: 'Tue, 01 Feb 2011 10:00:00 GMT',
            received_at: 1296554400000,
            attachments: [],
          },
        },
      ],
    };

    const actual = groupMessagesByDate(referenceTime, input);
    assert.deepEqual(actual, expected);
  });
});