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f3726db89a
Prettier would do this anyway, but it’s separated out for a more reviewable diff. Generated by ESLint. Signed-off-by: Anders Kaseorg <anders@zulip.com>
84 lines
5.7 KiB
JavaScript
84 lines
5.7 KiB
JavaScript
const rtl = zrequire("rtl");
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run_test("get_direction", () => {
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// These characters are strong R or AL: ا ب پ ج ض و د ؛
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// These characters are not strong: ۱ ۲ ۳ ۴ ۵ ۶ ۷ ۸ ۹ ۰
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assert.equal(rtl.get_direction("abcابپ"), "ltr");
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assert.equal(rtl.get_direction("ابپabc"), "rtl");
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assert.equal(rtl.get_direction("123abc"), "ltr");
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assert.equal(rtl.get_direction("۱۲۳abc"), "ltr");
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assert.equal(rtl.get_direction("123؛بپ"), "rtl");
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assert.equal(rtl.get_direction("۱۲۳ابپ"), "rtl");
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assert.equal(rtl.get_direction("۱۲جg"), "rtl");
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assert.equal(rtl.get_direction("12gج"), "ltr");
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assert.equal(rtl.get_direction("۱۲۳"), "ltr");
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assert.equal(rtl.get_direction("1234"), "ltr");
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const supp_plane_ltr_char = "\ud800\udfa0";
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const supp_plane_rtl_char = "\ud802\udc40";
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assert.equal(rtl.get_direction(supp_plane_ltr_char), "ltr");
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assert.equal(rtl.get_direction(supp_plane_rtl_char), "rtl");
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assert.equal(rtl.get_direction("123" + supp_plane_ltr_char), "ltr");
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assert.equal(rtl.get_direction("123" + supp_plane_rtl_char), "rtl");
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assert.equal(rtl.get_direction(supp_plane_ltr_char + supp_plane_rtl_char), "ltr");
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assert.equal(rtl.get_direction(supp_plane_rtl_char + supp_plane_ltr_char), "rtl");
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assert.equal(rtl.get_direction(supp_plane_ltr_char + " " + supp_plane_rtl_char), "ltr");
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assert.equal(rtl.get_direction(supp_plane_rtl_char + " " + supp_plane_ltr_char), "rtl");
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assert.equal(rtl.get_direction(supp_plane_ltr_char + "ج" + supp_plane_rtl_char), "ltr");
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assert.equal(rtl.get_direction(supp_plane_rtl_char + "ج" + supp_plane_ltr_char), "rtl");
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assert.equal(rtl.get_direction("پ" + supp_plane_ltr_char + "." + supp_plane_rtl_char), "rtl");
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assert.equal(rtl.get_direction("پ" + supp_plane_rtl_char + "." + supp_plane_ltr_char), "rtl");
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assert.equal(rtl.get_direction("b" + supp_plane_ltr_char + "." + supp_plane_rtl_char), "ltr");
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assert.equal(rtl.get_direction("b" + supp_plane_rtl_char + "." + supp_plane_ltr_char), "ltr");
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const unmatched_surrogate_1 = "\ud800";
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const unmatched_surrogate_2 = "\udf00";
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assert.equal(rtl.get_direction(unmatched_surrogate_1 + " "), "ltr");
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assert.equal(rtl.get_direction(unmatched_surrogate_2 + " "), "ltr");
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assert.equal(rtl.get_direction(" " + unmatched_surrogate_1), "ltr");
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assert.equal(rtl.get_direction(" " + unmatched_surrogate_2), "ltr");
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assert.equal(rtl.get_direction(" " + unmatched_surrogate_1 + " "), "ltr");
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assert.equal(rtl.get_direction(" " + unmatched_surrogate_2 + " "), "ltr");
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assert.equal(rtl.get_direction(unmatched_surrogate_1 + supp_plane_ltr_char), "ltr");
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assert.equal(rtl.get_direction(unmatched_surrogate_1 + supp_plane_rtl_char), "ltr");
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assert.equal(rtl.get_direction(unmatched_surrogate_2 + supp_plane_ltr_char), "ltr");
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assert.equal(rtl.get_direction(unmatched_surrogate_2 + supp_plane_rtl_char), "ltr");
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assert.equal(rtl.get_direction(supp_plane_ltr_char + unmatched_surrogate_1), "ltr");
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assert.equal(rtl.get_direction(supp_plane_ltr_char + unmatched_surrogate_2), "ltr");
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assert.equal(rtl.get_direction(supp_plane_rtl_char + unmatched_surrogate_1), "rtl");
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assert.equal(rtl.get_direction(supp_plane_rtl_char + unmatched_surrogate_2), "rtl");
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// Testing with some isolate initiators and PDIs.
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const i_chars = "\u2066\u2067\u2068";
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const pdi = "\u2069";
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assert.equal(rtl.get_direction("aa" + i_chars.charAt(0) + "bb" + pdi + "cc"), "ltr");
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assert.equal(rtl.get_direction("دد" + i_chars.charAt(0) + "bb" + pdi + "cc"), "rtl");
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assert.equal(rtl.get_direction("12" + i_chars.charAt(0) + "bb" + pdi + "جج"), "rtl");
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assert.equal(rtl.get_direction("۱۲" + i_chars.charAt(0) + "جج" + pdi + "cc"), "ltr");
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assert.equal(rtl.get_direction("aa" + i_chars.charAt(0) + "ج؛ج"), "ltr");
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assert.equal(rtl.get_direction("12" + i_chars.charAt(0) + "ج؛ج"), "ltr");
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assert.equal(rtl.get_direction("۱۲" + i_chars.charAt(0) + "aaa"), "ltr");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(0) + "bb" + i_chars.charAt(0) + "جج" + pdi + "ضض" + pdi + ".."), "ltr");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(0) + "bb" + i_chars.charAt(0) + "جج" + pdi + "ضض" + pdi + "وو"), "rtl");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(0) + "bb" + pdi + "33" + pdi + ".."), "ltr");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(0) + "bb" + pdi + "12" + pdi + "وو"), "rtl");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(0) + "ضج" + pdi + "12" + pdi + "ff"), "ltr");
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assert.equal(rtl.get_direction("aa" + i_chars.charAt(1) + "bb" + pdi + "cc"), "ltr");
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assert.equal(rtl.get_direction("دد" + i_chars.charAt(2) + "bb" + pdi + "cc"), "rtl");
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assert.equal(rtl.get_direction("12" + i_chars.charAt(1) + "bb" + pdi + "جج"), "rtl");
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assert.equal(rtl.get_direction("۱۲" + i_chars.charAt(2) + "جج" + pdi + "cc"), "ltr");
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assert.equal(rtl.get_direction("aa" + i_chars.charAt(1) + "ججج"), "ltr");
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assert.equal(rtl.get_direction("12" + i_chars.charAt(2) + "ججج"), "ltr");
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assert.equal(rtl.get_direction("۱۲" + i_chars.charAt(1) + "aaa"), "ltr");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(1) + "bb" + i_chars.charAt(2) + "جج" + pdi + "ضض" + pdi + ".."), "ltr");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(2) + "bb" + i_chars.charAt(1) + "؛ج" + pdi + "ضض" + pdi + "وو"), "rtl");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(1) + "bb" + pdi + "33" + pdi + ".."), "ltr");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(2) + "bb" + pdi + "12" + pdi + "وو"), "rtl");
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assert.equal(rtl.get_direction(",," + i_chars.charAt(1) + "ضج" + pdi + "12" + pdi + "ff"), "ltr");
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});
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