zulip/frontend_tests/node_tests/typing_events.js

"use strict";

const {strict: assert} = require("assert");

const {zrequire} = require("../zjsunit/namespace");
const {run_test} = require("../zjsunit/test");
const $ = require("../zjsunit/zjquery");

const typing_events = zrequire("typing_events");
const people = zrequire("people");

const anna = {
    email: "anna@example.com",
    full_name: "Anna Karenina",
    user_id: 8,
};

const vronsky = {
    email: "vronsky@example.com",
    full_name: "Alexei Vronsky",
    user_id: 9,
};

const levin = {
    email: "levin@example.com",
    full_name: "Konstantin Levin",
    user_id: 10,
};

const kitty = {
    email: "kitty@example.com",
    full_name: "Kitty S",
    user_id: 11,
};

people.add_active_user(anna);
people.add_active_user(vronsky);
people.add_active_user(levin);
people.add_active_user(kitty);

run_test("render_notifications_for_narrow", ({override_rewire, mock_template}) => {
    const $typing_notifications = $("#typing_notifications");

    const two_typing_users_ids = [anna.user_id, vronsky.user_id];
    const three_typing_users_ids = [anna.user_id, vronsky.user_id, levin.user_id];
    const four_typing_users_ids = [anna.user_id, vronsky.user_id, levin.user_id, kitty.user_id];

    mock_template("typing_notifications.hbs", true, (args, rendered_html) => rendered_html);

    // Having only two(<MAX_USERS_TO_DISPLAY_NAME) typists, both of them
    // should be rendered but not 'Several people are typing…'
    override_rewire(typing_events, "get_users_typing_for_narrow", () => two_typing_users_ids);
    typing_events.render_notifications_for_narrow();
    assert.ok($typing_notifications.visible());
    assert.ok($typing_notifications.html().includes(`${anna.full_name} is typing…`));
    assert.ok($typing_notifications.html().includes(`${vronsky.full_name} is typing…`));
    assert.ok(!$typing_notifications.html().includes("Several people are typing…"));

    // Having 3(=MAX_USERS_TO_DISPLAY_NAME) typists should also display only names
    override_rewire(typing_events, "get_users_typing_for_narrow", () => three_typing_users_ids);
    typing_events.render_notifications_for_narrow();
    assert.ok($typing_notifications.visible());
    assert.ok($typing_notifications.html().includes(`${anna.full_name} is typing…`));
    assert.ok($typing_notifications.html().includes(`${vronsky.full_name} is typing…`));
    assert.ok($typing_notifications.html().includes(`${levin.full_name} is typing…`));
    assert.ok(!$typing_notifications.html().includes("Several people are typing…"));

    // Having 4(>MAX_USERS_TO_DISPLAY_NAME) typists should display "Several people are typing…"
    override_rewire(typing_events, "get_users_typing_for_narrow", () => four_typing_users_ids);
    typing_events.render_notifications_for_narrow();
    assert.ok($typing_notifications.visible());
    assert.ok($typing_notifications.html().includes("Several people are typing…"));
    assert.ok(!$typing_notifications.html().includes(`${anna.full_name} is typing…`));
    assert.ok(!$typing_notifications.html().includes(`${vronsky.full_name} is typing…`));
    assert.ok(!$typing_notifications.html().includes(`${levin.full_name} is typing…`));
    assert.ok(!$typing_notifications.html().includes(`${kitty.full_name} is typing…`));

    // #typing_notifications should be hidden when there are no typists.
    override_rewire(typing_events, "get_users_typing_for_narrow", () => []);
    typing_events.render_notifications_for_narrow();
    assert.ok(!$typing_notifications.visible());
});