zulip/frontend_tests/node_tests/pm_conversations.js

const pmc = zrequire('pm_conversations');

run_test('partners', () => {
    const user1_id = 1;
    const user2_id = 2;
    const user3_id = 3;

    pmc.set_partner(user1_id);
    pmc.set_partner(user3_id);

    assert.equal(pmc.is_partner(user1_id), true);
    assert.equal(pmc.is_partner(user2_id), false);
    assert.equal(pmc.is_partner(user3_id), true);
});

zrequire("people");

run_test('insert_recent_private_message', () => {
    set_global('page_params', {
        recent_private_conversations: [
            {user_ids: [1, 2],
             max_message_id: 150,
            },
            {user_ids: [1],
             max_message_id: 111,
            },
            {user_ids: [],
             max_message_id: 7,
            },
        ],
    });
    people.initialize_current_user(15);
    pmc.recent.initialize();

    assert.deepEqual(pmc.recent.get(), [
        {user_ids_string: '1,2', max_message_id: 150},
        {user_ids_string: '1', max_message_id: 111},
        {user_ids_string: '15', max_message_id: 7},
    ]);

    pmc.recent.insert('1', 1001);
    pmc.recent.insert('2', 2001);
    pmc.recent.insert('1', 3001);

    // try to backdate user1's latest message
    pmc.recent.insert('1', 555);

    assert.deepEqual(pmc.recent.get(), [
        {user_ids_string: '1', max_message_id: 3001},
        {user_ids_string: '2', max_message_id: 2001},
        {user_ids_string: '1,2', max_message_id: 150},
        {user_ids_string: '15', max_message_id: 7},
    ]);

    assert.deepEqual(pmc.recent.get_strings(), ['1', '2', '1,2', '15']);
});