mirror of https://github.com/tc39/test262.git
58 lines
2.6 KiB
JavaScript
58 lines
2.6 KiB
JavaScript
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --harmony-intl-segmenter
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let breakCounts = {};
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for (const locale of ["en", "fr", "ja", "zh", "ko"]) {
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for (const lineBreakStyle of ["strict", "normal", "loose"]) {
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const seg = new Intl.Segmenter(
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[locale], {granularity: "line", lineBreakStyle: lineBreakStyle});
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let opportunity = 0;
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for (const text of [
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// We know the following data caused different line break results between
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// different modes.
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// https://www.w3.org/TR/css-text-3/#propdef-line-break
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// Japanese small kana or the Katakana-Hiragana prolonged sound mark
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"あぁーぃーあーいーぁーぃー",
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// hyphens:
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// ‐ U+2010, – U+2013, 〜 U+301C, ゠ U+30A0
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"ABC‐DEF–GHI〜JKL゠MNO",
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// iteration marks:
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// 々 U+3005, 〻 U+303B, ゝ U+309D, ゞ U+309E, ヽ U+30FD, ヾ U+30FE
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"あ々あ〻あゝあゞあヽあヾあ",
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// centered punctuation marks:
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// ・ U+30FB, ： U+FF1A, ； U+FF1B, ･ U+FF65, ‼ U+203C
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"ABC・DEF：GHI；JKL･MNO‼PQR",
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// centered punctuation marks:
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// ⁇ U+2047, ⁈ U+2048, ⁉ U+2049, ！ U+FF01, ？ U+FF1F
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"ABC⁇DEF⁈GHI⁉JKL！MNO？PQR",
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]) {
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const iter = seg.segment(text);
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while (!iter.following()) {
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opportunity++;
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}
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}
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breakCounts[locale + "-" + lineBreakStyle] = opportunity;
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}
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}
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// In Japanese
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// Just test the break count in loose mode is greater than normal mode.
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assertTrue(breakCounts["ja-loose"] > breakCounts["ja-normal"]);
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// and test the break count in normal mode is greater than strict mode.
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assertTrue(breakCounts["ja-normal"] > breakCounts["ja-strict"]);
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// In Chinese
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// Just test the break count in loose mode is greater than normal mode.
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assertTrue(breakCounts["zh-loose"] > breakCounts["zh-normal"]);
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// and test the break count in normal mode is greater than strict mode.
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assertTrue(breakCounts["zh-normal"] > breakCounts["zh-strict"]);
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// In English, French and Korean
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assertEquals(breakCounts["en-loose"], breakCounts["en-normal"]);
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assertEquals(breakCounts["fr-loose"], breakCounts["fr-normal"]);
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assertEquals(breakCounts["ko-loose"], breakCounts["ko-normal"]);
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// and test the break count in normal mode is greater than strict mode.
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assertTrue(breakCounts["en-normal"] > breakCounts["en-strict"]);
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assertTrue(breakCounts["fr-normal"] > breakCounts["fr-strict"]);
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assertTrue(breakCounts["ko-normal"] > breakCounts["ko-strict"]);
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