zulip/web/tests/rtl.test.js

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"use strict";
const assert = require("node:assert/strict");
const {zrequire} = require("./lib/namespace.js");
const {run_test} = require("./lib/test.js");
const $ = require("./lib/zjquery.js");
const rtl = zrequire("rtl");
run_test("get_direction", () => {
// These characters are strong R or AL: ا ب پ ج ض و د ؛
// These characters are not strong: ۱ ۲ ۳ ۴ ۵ ۶ ۷ ۸ ۹ ۰
assert.equal(rtl.get_direction("abcابپ"), "ltr");
assert.equal(rtl.get_direction("ابپabc"), "rtl");
assert.equal(rtl.get_direction("123abc"), "ltr");
assert.equal(rtl.get_direction("۱۲۳abc"), "ltr");
assert.equal(rtl.get_direction("123؛بپ"), "rtl");
assert.equal(rtl.get_direction("۱۲۳ابپ"), "rtl");
assert.equal(rtl.get_direction("۱۲جg"), "rtl");
assert.equal(rtl.get_direction("12gج"), "ltr");
assert.equal(rtl.get_direction("۱۲۳"), "ltr");
assert.equal(rtl.get_direction("1234"), "ltr");
const supp_plane_ltr_char = "\uD800\uDFA0";
const supp_plane_rtl_char = "\uD802\uDC40";
assert.equal(rtl.get_direction(supp_plane_ltr_char), "ltr");
assert.equal(rtl.get_direction(supp_plane_rtl_char), "rtl");
assert.equal(rtl.get_direction("123" + supp_plane_ltr_char), "ltr");
assert.equal(rtl.get_direction("123" + supp_plane_rtl_char), "rtl");
assert.equal(rtl.get_direction(supp_plane_ltr_char + supp_plane_rtl_char), "ltr");
assert.equal(rtl.get_direction(supp_plane_rtl_char + supp_plane_ltr_char), "rtl");
assert.equal(rtl.get_direction(supp_plane_ltr_char + " " + supp_plane_rtl_char), "ltr");
assert.equal(rtl.get_direction(supp_plane_rtl_char + " " + supp_plane_ltr_char), "rtl");
assert.equal(rtl.get_direction(supp_plane_ltr_char + "ج" + supp_plane_rtl_char), "ltr");
assert.equal(rtl.get_direction(supp_plane_rtl_char + "ج" + supp_plane_ltr_char), "rtl");
assert.equal(rtl.get_direction("پ" + supp_plane_ltr_char + "." + supp_plane_rtl_char), "rtl");
assert.equal(rtl.get_direction("پ" + supp_plane_rtl_char + "." + supp_plane_ltr_char), "rtl");
assert.equal(rtl.get_direction("b" + supp_plane_ltr_char + "." + supp_plane_rtl_char), "ltr");
assert.equal(rtl.get_direction("b" + supp_plane_rtl_char + "." + supp_plane_ltr_char), "ltr");
const unmatched_surrogate_1 = "\uD800";
const unmatched_surrogate_2 = "\uDF00";
assert.equal(rtl.get_direction(unmatched_surrogate_1 + " "), "ltr");
assert.equal(rtl.get_direction(unmatched_surrogate_2 + " "), "ltr");
assert.equal(rtl.get_direction(" " + unmatched_surrogate_1), "ltr");
assert.equal(rtl.get_direction(" " + unmatched_surrogate_2), "ltr");
assert.equal(rtl.get_direction(" " + unmatched_surrogate_1 + " "), "ltr");
assert.equal(rtl.get_direction(" " + unmatched_surrogate_2 + " "), "ltr");
assert.equal(rtl.get_direction(unmatched_surrogate_1 + supp_plane_ltr_char), "ltr");
assert.equal(rtl.get_direction(unmatched_surrogate_1 + supp_plane_rtl_char), "ltr");
assert.equal(rtl.get_direction(unmatched_surrogate_2 + supp_plane_ltr_char), "ltr");
assert.equal(rtl.get_direction(unmatched_surrogate_2 + supp_plane_rtl_char), "ltr");
assert.equal(rtl.get_direction(supp_plane_ltr_char + unmatched_surrogate_1), "ltr");
assert.equal(rtl.get_direction(supp_plane_ltr_char + unmatched_surrogate_2), "ltr");
assert.equal(rtl.get_direction(supp_plane_rtl_char + unmatched_surrogate_1), "rtl");
assert.equal(rtl.get_direction(supp_plane_rtl_char + unmatched_surrogate_2), "rtl");
// Testing with some isolate initiators and PDIs.
const i_chars = "\u2066\u2067\u2068";
const pdi = "\u2069";
assert.equal(rtl.get_direction("aa" + i_chars.charAt(0) + "bb" + pdi + "cc"), "ltr");
assert.equal(rtl.get_direction("دد" + i_chars.charAt(0) + "bb" + pdi + "cc"), "rtl");
assert.equal(rtl.get_direction("12" + i_chars.charAt(0) + "bb" + pdi + "جج"), "rtl");
assert.equal(rtl.get_direction("۱۲" + i_chars.charAt(0) + "جج" + pdi + "cc"), "ltr");
assert.equal(rtl.get_direction("aa" + i_chars.charAt(0) + "ج؛ج"), "ltr");
assert.equal(rtl.get_direction("12" + i_chars.charAt(0) + "ج؛ج"), "ltr");
assert.equal(rtl.get_direction("۱۲" + i_chars.charAt(0) + "aaa"), "ltr");
assert.equal(
rtl.get_direction(
",," + i_chars.charAt(0) + "bb" + i_chars.charAt(0) + "جج" + pdi + "ضض" + pdi + "..",
),
"ltr",
);
assert.equal(
rtl.get_direction(
",," + i_chars.charAt(0) + "bb" + i_chars.charAt(0) + "جج" + pdi + "ضض" + pdi + "وو",
),
"rtl",
);
assert.equal(
rtl.get_direction(",," + i_chars.charAt(0) + "bb" + pdi + "33" + pdi + ".."),
"ltr",
);
assert.equal(
rtl.get_direction(",," + i_chars.charAt(0) + "bb" + pdi + "12" + pdi + "وو"),
"rtl",
);
assert.equal(
rtl.get_direction(",," + i_chars.charAt(0) + "ضج" + pdi + "12" + pdi + "ff"),
"ltr",
);
assert.equal(rtl.get_direction("aa" + i_chars.charAt(1) + "bb" + pdi + "cc"), "ltr");
assert.equal(rtl.get_direction("دد" + i_chars.charAt(2) + "bb" + pdi + "cc"), "rtl");
assert.equal(rtl.get_direction("12" + i_chars.charAt(1) + "bb" + pdi + "جج"), "rtl");
assert.equal(rtl.get_direction("۱۲" + i_chars.charAt(2) + "جج" + pdi + "cc"), "ltr");
assert.equal(rtl.get_direction("aa" + i_chars.charAt(1) + "ججج"), "ltr");
assert.equal(rtl.get_direction("12" + i_chars.charAt(2) + "ججج"), "ltr");
assert.equal(rtl.get_direction("۱۲" + i_chars.charAt(1) + "aaa"), "ltr");
assert.equal(
rtl.get_direction(
",," + i_chars.charAt(1) + "bb" + i_chars.charAt(2) + "جج" + pdi + "ضض" + pdi + "..",
),
"ltr",
);
assert.equal(
rtl.get_direction(
",," + i_chars.charAt(2) + "bb" + i_chars.charAt(1) + "؛ج" + pdi + "ضض" + pdi + "وو",
),
"rtl",
);
assert.equal(
rtl.get_direction(",," + i_chars.charAt(1) + "bb" + pdi + "33" + pdi + ".."),
"ltr",
);
assert.equal(
rtl.get_direction(",," + i_chars.charAt(2) + "bb" + pdi + "12" + pdi + "وو"),
"rtl",
);
assert.equal(
rtl.get_direction(",," + i_chars.charAt(1) + "ضج" + pdi + "12" + pdi + "ff"),
"ltr",
);
});
run_test("set_rtl_class_for_textarea rtl", () => {
const $textarea = $.create("some-textarea");
assert.ok(!$textarea.hasClass("rtl"));
const text = "```quote\nمرحبا";
$textarea.val(text);
rtl.set_rtl_class_for_textarea($textarea);
assert.ok($textarea.hasClass("rtl"));
});
run_test("set_rtl_class_for_textarea ltr", () => {
const $textarea = $.create("some-textarea");
$textarea.addClass("rtl");
assert.ok($textarea.hasClass("rtl"));
const text = "```quote\nEnglish text";
$textarea.val(text);
rtl.set_rtl_class_for_textarea($textarea);
assert.ok(!$textarea.hasClass("rtl"));
});