73 lines
3.0 KiB
JavaScript
73 lines
3.0 KiB
JavaScript
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// Copyright 2020 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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const segmenter = new Intl.Segmenter();
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const waving_hand_light_skin_tone = "\uD83D\uDC4B\uD83C\uDFFB";
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const man_light_skin_tone_red_hair =
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"\uD83D\uDC68\uD83C\uDFFB\u200D\uD83E\uDDB0";
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// 1 2
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// 034566 89012 3 4 56 89 01
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const input = "ซิ่ง Ame\u0301lie台北\uD800\uDCB0 " + waving_hand_light_skin_tone +
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// 2
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// 2345678
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man_light_skin_tone_red_hair;
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const segments = segmenter.segment(input);
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// Test less than 0
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assertEquals(undefined, segments.containing(-1));
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// Test longer than input
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assertEquals(undefined, segments.containing(input.length));
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assertEquals(undefined, segments.containing(input.length + 1));
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// Test modifier in Thai
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assertEquals({segment: "ซิ่", index: 0, input}, segments.containing(0));
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assertEquals({segment: "ซิ่", index: 0, input}, segments.containing(1));
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assertEquals({segment: "ซิ่", index: 0, input}, segments.containing(2));
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// Test basic Thai
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assertEquals({segment: "ง", index: 3, input}, segments.containing(3));
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// Test SPACE
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assertEquals({segment: " ", index: 4, input}, segments.containing(4));
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// Test ASCII
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assertEquals({segment: "A", index: 5, input}, segments.containing(5));
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assertEquals({segment: "m", index: 6, input}, segments.containing(6));
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// Test ASCII with modifier
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assertEquals({segment: "e\u0301", index: 7, input}, segments.containing(7));
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assertEquals({segment: "e\u0301", index: 7, input}, segments.containing(8));
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// Test ASCII
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assertEquals({segment: "l", index: 9, input}, segments.containing(9));
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assertEquals({segment: "i", index: 10, input}, segments.containing(10));
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assertEquals({segment: "e", index: 11, input}, segments.containing(11));
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// Test Han
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assertEquals({segment: "台", index: 12, input}, segments.containing(12));
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assertEquals({segment: "北", index: 13, input}, segments.containing(13));
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// Test Surrogate pairs
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assertEquals({segment: "𐂰", index: 14, input}, segments.containing(14));
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assertEquals({segment: "𐂰", index: 14, input}, segments.containing(15));
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// Test SPACE
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assertEquals({segment: " ", index: 16, input}, segments.containing(16));
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// Test Emoji modifier: U+1F44B U+1F3FB
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const emoji1 = {segment: waving_hand_light_skin_tone, index: 17, input};
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assertEquals(emoji1, segments.containing(17));
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assertEquals(emoji1, segments.containing(18));
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assertEquals(emoji1, segments.containing(19));
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assertEquals(emoji1, segments.containing(20));
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// Test Emoji modifiers sequence: U+1F468 U+1F3FB U+200D U+1F9B0
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const emoji2 = {segment: man_light_skin_tone_red_hair, index: 21, input};
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assertEquals(emoji2, segments.containing(21));
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assertEquals(emoji2, segments.containing(22));
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assertEquals(emoji2, segments.containing(23));
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assertEquals(emoji2, segments.containing(24));
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assertEquals(emoji2, segments.containing(25));
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assertEquals(emoji2, segments.containing(26));
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assertEquals(emoji2, segments.containing(27));
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