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zulip/web/tests/util.test.js

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JavaScript
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"use strict";
const {strict: assert} = require("assert");
const _ = require("lodash");
const MockDate = require("mockdate");
const {set_global, zrequire} = require("./lib/namespace");
const {run_test} = require("./lib/test");
const blueslip = zrequire("blueslip");
set_global("document", {});
const util = zrequire("util");
run_test("CachedValue", () => {
let x = 5;
const cv = new util.CachedValue({
compute_value() {
return x * 2;
},
});
assert.equal(cv.get(), 10);
x = 6;
assert.equal(cv.get(), 10);
cv.reset();
assert.equal(cv.get(), 12);
});
run_test("extract_pm_recipients", () => {
assert.equal(util.extract_pm_recipients("bob@foo.com, alice@foo.com").length, 2);
assert.equal(util.extract_pm_recipients("bob@foo.com, ").length, 1);
});
run_test("lower_bound", () => {
const arr = [{x: 10}, {x: 20}, {x: 30}, {x: 40}, {x: 50}];
function compare(a, b) {
return a.x < b;
}
assert.equal(util.lower_bound(arr, 5, compare), 0);
assert.equal(util.lower_bound(arr, 10, compare), 0);
assert.equal(util.lower_bound(arr, 15, compare), 1);
assert.equal(util.lower_bound(arr, 50, compare), 4);
assert.equal(util.lower_bound(arr, 55, compare), 5);
});
run_test("lower_same", () => {
assert.ok(util.lower_same("abc", "AbC"));
assert.ok(!util.lower_same("abbc", "AbC"));
blueslip.expect("error", "Cannot compare strings; at least one value is undefined");
util.lower_same("abc", undefined);
});
run_test("same_recipient", () => {
assert.ok(
util.same_recipient(
{type: "stream", stream_id: 101, topic: "Bar"},
{type: "stream", stream_id: 101, topic: "bar"},
),
);
assert.ok(
!util.same_recipient(
{type: "stream", stream_id: 101, topic: "Bar"},
{type: "stream", stream_id: 102, topic: "whatever"},
),
);
assert.ok(
util.same_recipient(
{type: "private", to_user_ids: "101,102"},
{type: "private", to_user_ids: "101,102"},
),
);
assert.ok(
!util.same_recipient(
{type: "private", to_user_ids: "101,102"},
{type: "private", to_user_ids: "103"},
),
);
assert.ok(
!util.same_recipient({type: "stream", stream_id: 101, topic: "Bar"}, {type: "private"}),
);
assert.ok(!util.same_recipient({type: "private", to_user_ids: undefined}, {type: "private"}));
assert.ok(!util.same_recipient(undefined, {type: "private"}));
assert.ok(!util.same_recipient(undefined, undefined));
});
run_test("robust_url_decode", ({override}) => {
assert.equal(util.robust_url_decode("xxx%3Ayyy"), "xxx:yyy");
assert.equal(util.robust_url_decode("xxx%3"), "xxx");
override(global, "decodeURIComponent", () => {
throw new Error("foo");
});
assert.throws(
() => {
util.robust_url_decode("%E0%A4%A");
},
{name: "Error", message: "foo"},
);
});
run_test("dumb_strcmp", ({override}) => {
override(Intl, "Collator", undefined);
const strcmp = util.make_strcmp();
assert.equal(strcmp("a", "b"), -1);
assert.equal(strcmp("c", "c"), 0);
assert.equal(strcmp("z", "y"), 1);
});
run_test("get_edit_event_orig_topic", () => {
assert.equal(util.get_edit_event_orig_topic({orig_subject: "lunch"}), "lunch");
});
run_test("is_mobile", () => {
window.navigator = {userAgent: "Android"};
assert.ok(util.is_mobile());
window.navigator = {userAgent: "Not mobile"};
assert.ok(!util.is_mobile());
});
run_test("array_compare", () => {
assert.ok(util.array_compare([], []));
assert.ok(util.array_compare([1, 2, 3], [1, 2, 3]));
assert.ok(!util.array_compare([1, 2], [1, 2, 3]));
assert.ok(!util.array_compare([1, 2, 3], [1, 2]));
assert.ok(!util.array_compare([1, 2, 3, 4], [1, 2, 3, 5]));
});
run_test("normalize_recipients", () => {
assert.equal(
util.normalize_recipients("ZOE@foo.com, bob@foo.com, alice@foo.com, AARON@foo.com "),
"aaron@foo.com,alice@foo.com,bob@foo.com,zoe@foo.com",
);
});
run_test("random_int", () => {
const min = 0;
const max = 100;
_.times(500, () => {
const val = util.random_int(min, max);
assert.ok(min <= val);
assert.ok(val <= max);
assert.equal(val, Math.floor(val));
});
});
run_test("wildcard_mentions_regexp", () => {
const messages_with_all_mentions = [
"@**all**",
"some text before @**all** some text after",
"@**all** some text after only",
"some text before only @**all**",
];
const messages_with_everyone_mentions = [
"@**everyone**",
'"@**everyone**"',
"@**everyone**: Look at this!",
"The <@**everyone**> channel",
'I have to say "@**everyone**" to ding the bell',
"some text before @**everyone** some text after",
"@**everyone** some text after only",
"some text before only @**everyone**",
];
const messages_with_stream_mentions = [
"@**stream**",
"some text before @**stream** some text after",
"@**stream** some text after only",
"some text before only @**stream**",
];
const messages_with_channel_mentions = [
"@**channel**",
"some text before @**channel** some text after",
"@**channel** some text after only",
"some text before only @**channel**",
];
const messages_with_topic_mentions = [
"@**topic**",
"some text before @**topic** some text after",
"@**topic** some text after only",
"some text before only @**topic**",
];
const messages_without_all_mentions = [
"@all",
"some text before @all some text after",
"`@everyone`",
"some_email@everyone.com",
"`@**everyone**`",
"some_email@**everyone**.com",
];
const messages_without_everyone_mentions = [
"some text before @everyone some text after",
"@everyone",
"`@everyone`",
"some_email@everyone.com",
"`@**everyone**`",
"some_email@**everyone**.com",
];
const messages_without_stream_mentions = [
"some text before @stream some text after",
"@stream",
"`@stream`",
"some_email@stream.com",
"`@**stream**`",
"some_email@**stream**.com",
];
const messages_without_channel_mentions = [
"some text before @channel some text after",
"@channel",
"`@channel`",
"some_email@channel.com",
"`@**channel**`",
"some_email@**channel**.com",
];
let i;
for (i = 0; i < messages_with_all_mentions.length; i += 1) {
assert.ok(util.find_stream_wildcard_mentions(messages_with_all_mentions[i]));
}
for (i = 0; i < messages_with_everyone_mentions.length; i += 1) {
assert.ok(util.find_stream_wildcard_mentions(messages_with_everyone_mentions[i]));
}
for (i = 0; i < messages_with_stream_mentions.length; i += 1) {
assert.ok(util.find_stream_wildcard_mentions(messages_with_stream_mentions[i]));
}
for (i = 0; i < messages_with_channel_mentions.length; i += 1) {
assert.ok(util.find_stream_wildcard_mentions(messages_with_channel_mentions[i]));
}
for (i = 0; i < messages_with_topic_mentions.length; i += 1) {
assert.ok(!util.find_stream_wildcard_mentions(messages_with_topic_mentions[i]));
}
for (i = 0; i < messages_without_all_mentions.length; i += 1) {
assert.ok(!util.find_stream_wildcard_mentions(messages_without_everyone_mentions[i]));
}
for (i = 0; i < messages_without_everyone_mentions.length; i += 1) {
assert.ok(!util.find_stream_wildcard_mentions(messages_without_everyone_mentions[i]));
}
for (i = 0; i < messages_without_stream_mentions.length; i += 1) {
assert.ok(!util.find_stream_wildcard_mentions(messages_without_stream_mentions[i]));
}
for (i = 0; i < messages_without_channel_mentions.length; i += 1) {
assert.ok(!util.find_stream_wildcard_mentions(messages_without_channel_mentions[i]));
}
});
run_test("move_array_elements_to_front", () => {
const strings = ["string1", "string3", "string2", "string4"];
const strings_selection = ["string4", "string1"];
const strings_expected = ["string1", "string4", "string3", "string2"];
const strings_no_selection = util.move_array_elements_to_front(strings, []);
const strings_no_array = util.move_array_elements_to_front([], strings_selection);
const strings_actual = util.move_array_elements_to_front(strings, strings_selection);
const emails = [
"test@zulip.com",
"test@test.com",
"test@localhost",
"test@invalid@email",
"something@zulip.com",
];
const emails_selection = ["test@test.com", "test@localhost", "test@invalid@email"];
const emails_expected = [
"test@test.com",
"test@localhost",
"test@invalid@email",
"test@zulip.com",
"something@zulip.com",
];
const emails_actual = util.move_array_elements_to_front(emails, emails_selection);
assert.deepEqual(strings_no_selection, strings);
assert.deepEqual(strings_no_array, []);
assert.deepEqual(strings_actual, strings_expected);
assert.deepEqual(emails_actual, emails_expected);
});
run_test("filter_by_word_prefix_match", () => {
const strings = ["stream-hyphen_underscore/slash", "three word stream"];
const values = [0, 1];
const item_to_string = (idx) => strings[idx];
// Default settings will match words with a space delimiter before them.
assert.deepEqual(util.filter_by_word_prefix_match(values, "stream", item_to_string), [0, 1]);
assert.deepEqual(util.filter_by_word_prefix_match(values, "word stream", item_to_string), [1]);
// Since - appears before `hyphen` in
// stream-hyphen_underscore/slash, we require `-` in the set of
// characters for it to match.
assert.deepEqual(util.filter_by_word_prefix_match(values, "hyphe", item_to_string), []);
assert.deepEqual(util.filter_by_word_prefix_match(values, "hyphe", item_to_string, /[\s/_-]/), [
0,
]);
assert.deepEqual(util.filter_by_word_prefix_match(values, "hyphe", item_to_string, /[\s-]/), [
0,
]);
// Similarly `_` must be in the set of allowed characters to match "underscore".
assert.deepEqual(util.filter_by_word_prefix_match(values, "unders", item_to_string, /[\s_]/), [
0,
]);
assert.deepEqual(util.filter_by_word_prefix_match(values, "unders", item_to_string, /\s/), []);
});
run_test("get_string_diff", () => {
assert.deepEqual(
util.get_string_diff("#ann is for updates", "#**announce** is for updates"),
[1, 4, 13],
);
assert.deepEqual(util.get_string_diff("/p", "/poll"), [2, 2, 5]);
assert.deepEqual(util.get_string_diff("Hey @Aa", "Hey @**aaron** "), [5, 7, 15]);
assert.deepEqual(util.get_string_diff("same", "same"), [0, 0, 0]);
assert.deepEqual(util.get_string_diff("same-end", "two same-end"), [0, 0, 4]);
assert.deepEqual(util.get_string_diff("space", "sp ace"), [2, 2, 3]);
});
run_test("is_valid_url", () => {
assert.equal(util.is_valid_url("http://"), false);
assert.equal(util.is_valid_url("random_string"), true);
assert.equal(util.is_valid_url("http://google.com/something?q=query#hash"), true);
assert.equal(util.is_valid_url("/abc/"), true);
assert.equal(util.is_valid_url("http://", true), false);
assert.equal(util.is_valid_url("random_string", true), false);
assert.equal(util.is_valid_url("http://google.com/something?q=query#hash", true), true);
assert.equal(util.is_valid_url("/abc/", true), false);
});
run_test("format_array_as_list", () => {
const array = ["apple", "banana", "orange"];
// when Intl exist
assert.equal(
util.format_array_as_list(array, "long", "conjunction"),
"apple, banana, and orange",
);
// when Intl.ListFormat does not exist
global.Intl.ListFormat = undefined;
assert.equal(util.format_array_as_list(array, "long", "conjunction"), "apple, banana, orange");
});
run_test("get_remaining_time", () => {
// When current time is less than start time
// Set a random start time
const start_time = new Date(1000).getTime();
// Set current time to 400ms ahead of the start time
MockDate.set(start_time + 400);
const duration = 500;
let expected_remaining_time = 100;
assert.equal(util.get_remaining_time(start_time, duration), expected_remaining_time);
// When current time is greater than start time + duration
// Set current time to 100ms after the start time + duration
MockDate.set(start_time + duration + 100);
expected_remaining_time = 0;
assert.equal(util.get_remaining_time(start_time, duration), expected_remaining_time);
MockDate.reset();
});
run_test("the", () => {
const list_with_one_item = ["foo"];
assert.equal(util.the(list_with_one_item), "foo");
});
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