zulip/frontend_tests/node_tests/topic_generator.js

332 lines
9.6 KiB
JavaScript

set_global('pm_conversations', {
recent: {},
});
zrequire('muting');
zrequire('unread');
zrequire('stream_data');
zrequire('stream_topic_history');
zrequire('stream_sort');
const tg = zrequire('topic_generator');
function is_even(i) { return i % 2 === 0; }
function is_odd(i) { return i % 2 === 1; }
run_test('basics', () => {
let gen = tg.list_generator([10, 20, 30]);
assert.equal(gen.next(), 10);
assert.equal(gen.next(), 20);
assert.equal(gen.next(), 30);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
const gen1 = tg.list_generator([100, 200]);
const gen2 = tg.list_generator([300, 400]);
const outers = [gen1, gen2];
gen = tg.chain(outers);
assert.equal(gen.next(), 100);
assert.equal(gen.next(), 200);
assert.equal(gen.next(), 300);
assert.equal(gen.next(), 400);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
gen = tg.wrap([5, 15, 25, 35], 25);
assert.equal(gen.next(), 25);
assert.equal(gen.next(), 35);
assert.equal(gen.next(), 5);
assert.equal(gen.next(), 15);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
gen = tg.wrap_exclude([5, 15, 25, 35], 25);
assert.equal(gen.next(), 35);
assert.equal(gen.next(), 5);
assert.equal(gen.next(), 15);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
gen = tg.wrap([5, 15, 25, 35], undefined);
assert.equal(gen.next(), 5);
gen = tg.wrap_exclude([5, 15, 25, 35], undefined);
assert.equal(gen.next(), 5);
gen = tg.wrap([5, 15, 25, 35], 17);
assert.equal(gen.next(), 5);
gen = tg.wrap([], 42);
assert.equal(gen.next(), undefined);
let ints = tg.list_generator([1, 2, 3, 4, 5]);
gen = tg.filter(ints, is_even);
assert.equal(gen.next(), 2);
assert.equal(gen.next(), 4);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
ints = tg.list_generator([]);
gen = tg.filter(ints, is_even);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
ints = tg.list_generator([10, 20, 30]);
function mult10(x) { return x * 10; }
gen = tg.map(ints, mult10);
assert.equal(gen.next(), 100);
assert.equal(gen.next(), 200);
});
run_test('reverse', () => {
let gen = tg.reverse_list_generator([10, 20, 30]);
assert.equal(gen.next(), 30);
assert.equal(gen.next(), 20);
assert.equal(gen.next(), 10);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
// If second parameter is not in the list, we just traverse the list
// in reverse.
gen = tg.reverse_wrap_exclude([10, 20, 30]);
assert.equal(gen.next(), 30);
assert.equal(gen.next(), 20);
assert.equal(gen.next(), 10);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
gen = tg.reverse_wrap_exclude([10, 20, 30], 'whatever');
assert.equal(gen.next(), 30);
assert.equal(gen.next(), 20);
assert.equal(gen.next(), 10);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
// Witness the mostly typical cycling behavior.
gen = tg.reverse_wrap_exclude([5, 10, 20, 30], 20);
assert.equal(gen.next(), 10);
assert.equal(gen.next(), 5);
assert.equal(gen.next(), 30);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
gen = tg.reverse_wrap_exclude([5, 10, 20, 30], 5);
assert.equal(gen.next(), 30);
assert.equal(gen.next(), 20);
assert.equal(gen.next(), 10);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
gen = tg.reverse_wrap_exclude([5, 10, 20, 30], 30);
assert.equal(gen.next(), 20);
assert.equal(gen.next(), 10);
assert.equal(gen.next(), 5);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
// Test small lists.
gen = tg.reverse_wrap_exclude([], 5);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
gen = tg.reverse_wrap_exclude([5], 5);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
gen = tg.reverse_wrap_exclude([5], 10);
assert.equal(gen.next(), 5);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
});
run_test('fchain', () => {
const mults = function (n) {
let ret = 0;
return {
next: function () {
ret += n;
return ret <= 100 ? ret : undefined;
},
};
};
let ints = tg.list_generator([29, 43]);
let gen = tg.fchain(ints, mults);
assert.equal(gen.next(), 29);
assert.equal(gen.next(), 58);
assert.equal(gen.next(), 87);
assert.equal(gen.next(), 43);
assert.equal(gen.next(), 86);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
ints = tg.wrap([33, 34, 37], 37);
ints = tg.filter(ints, is_odd);
gen = tg.fchain(ints, mults);
assert.equal(gen.next(), 37);
assert.equal(gen.next(), 74);
assert.equal(gen.next(), 33);
assert.equal(gen.next(), 66);
assert.equal(gen.next(), 99);
assert.equal(gen.next(), undefined);
assert.equal(gen.next(), undefined);
const undef = function () {
return;
};
blueslip.expect('error', 'Invalid generator returned.');
ints = tg.list_generator([29, 43]);
gen = tg.fchain(ints, undef);
gen.next();
blueslip.reset();
});
run_test('streams', () => {
function assert_next_stream(curr_stream, expected) {
const actual = tg.get_next_stream(curr_stream);
assert.equal(actual, expected);
}
global.stream_sort.get_streams = function () {
return ['announce', 'muted', 'devel', 'test here'];
};
assert_next_stream(undefined, 'announce');
assert_next_stream('NOT THERE', 'announce');
assert_next_stream('announce', 'muted');
assert_next_stream('test here', 'announce');
function assert_prev_stream(curr_stream, expected) {
const actual = tg.get_prev_stream(curr_stream);
assert.equal(actual, expected);
}
assert_prev_stream(undefined, 'test here');
assert_prev_stream('test here', 'devel');
assert_prev_stream('announce', 'test here');
});
run_test('topics', () => {
const streams = [1, 2, 3, 4];
const topics = new Map([
[1, ['read', 'read', '1a', '1b', 'read', '1c']],
[2, []],
[3, ['3a', 'read', 'read', '3b', 'read']],
[4, ['4a']],
]);
function has_unread_messages(stream, topic) {
return topic !== 'read';
}
function get_topics(stream) {
return topics.get(stream);
}
function next_topic(curr_stream, curr_topic) {
return tg.next_topic(
streams,
get_topics,
has_unread_messages,
curr_stream,
curr_topic);
}
assert.deepEqual(next_topic(1, '1a'),
{stream: 1, topic: '1b'});
assert.deepEqual(next_topic(1, undefined),
{stream: 1, topic: '1a'});
assert.deepEqual(next_topic(2, 'bogus'),
{stream: 3, topic: '3a'});
assert.deepEqual(next_topic(3, '3b'),
{stream: 3, topic: '3a'});
assert.deepEqual(next_topic(4, '4a'),
{stream: 1, topic: '1a'});
assert.deepEqual(next_topic(undefined, undefined),
{stream: 1, topic: '1a'});
// Now test the deeper function that is wired up to
// real functions stream_data/stream_sort/unread.
global.stream_sort.get_streams = function () {
return ['announce', 'muted', 'devel', 'test here'];
};
const muted_stream_id = 400;
const devel_stream_id = 401;
const stream_id_dct = {
muted: muted_stream_id,
devel: devel_stream_id,
};
stream_topic_history.get_recent_topic_names = function (stream_id) {
switch (stream_id) {
case muted_stream_id:
return ['ms-topic1', 'ms-topic2'];
case devel_stream_id:
return ['muted', 'python'];
}
return [];
};
global.stream_data.get_stream_id = function (stream_name) {
return stream_id_dct[stream_name];
};
global.stream_data.is_stream_muted_by_name = function (stream_name) {
return stream_name === 'muted';
};
global.unread.topic_has_any_unread = function (stream_id) {
return [devel_stream_id, muted_stream_id].includes(stream_id);
};
global.muting.is_topic_muted = function (stream_name, topic) {
return topic === 'muted';
};
let next_item = tg.get_next_topic('announce', 'whatever');
assert.deepEqual(next_item, {
stream: 'devel',
topic: 'python',
});
next_item = tg.get_next_topic('muted', undefined);
assert.deepEqual(next_item, {
stream: 'muted',
topic: 'ms-topic1',
});
});
run_test('get_next_unread_pm_string', () => {
pm_conversations.recent.get_strings = function () {
return ['1', 'read', '2,3', '4', 'unk'];
};
unread.num_unread_for_person = function (user_ids_string) {
if (user_ids_string === 'unk') {
return;
}
if (user_ids_string === 'read') {
return 0;
}
return 5; // random non-zero value
};
assert.equal(tg.get_next_unread_pm_string(), '1');
assert.equal(tg.get_next_unread_pm_string('4'), '1');
assert.equal(tg.get_next_unread_pm_string('unk'), '1');
assert.equal(tg.get_next_unread_pm_string('4'), '1');
assert.equal(tg.get_next_unread_pm_string('1'), '2,3');
assert.equal(tg.get_next_unread_pm_string('read'), '2,3');
assert.equal(tg.get_next_unread_pm_string('2,3'), '4');
});