zulip/frontend_tests/node_tests/compose_fade.js

zrequire("stream_data");
zrequire("people");
zrequire("compose_fade");

const me = {
    email: "me@example.com",
    user_id: 30,
    full_name: "Me Myself",
};

const alice = {
    email: "alice@example.com",
    user_id: 31,
    full_name: "Alice",
};

const bob = {
    email: "bob@example.com",
    user_id: 32,
    full_name: "Bob",
};

people.add_active_user(me);
people.initialize_current_user(me.user_id);

people.add_active_user(alice);
people.add_active_user(bob);

run_test("set_focused_recipient", () => {
    const sub = {
        stream_id: 101,
        name: "social",
        subscribed: true,
        can_access_subscribers: true,
    };
    stream_data.add_sub(sub);
    stream_data.set_subscribers(sub, [me.user_id, alice.user_id]);

    global.$ = function (selector) {
        switch (selector) {
        case "#stream_message_recipient_stream":
            return {
                val: function () {
                    return "social";
                },
            };
        case "#stream_message_recipient_topic":
            return {
                val: function () {
                    return "lunch";
                },
            };
        }
    };

    compose_fade.set_focused_recipient("stream");

    assert.equal(compose_fade.would_receive_message(me.user_id), true);
    assert.equal(compose_fade.would_receive_message(alice.user_id), true);
    assert.equal(compose_fade.would_receive_message(bob.user_id), false);

    const good_msg = {
        type: "stream",
        stream_id: 101,
        topic: "lunch",
    };
    const bad_msg = {
        type: "stream",
        stream_id: 999,
        topic: "lunch",
    };
    assert(!compose_fade.should_fade_message(good_msg));
    assert(compose_fade.should_fade_message(bad_msg));
});