29 lines
1.1 KiB
JavaScript
29 lines
1.1 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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// Test to ensure the calling of containing() won't impact the calling of
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// the next() method.
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const segmenter = new Intl.Segmenter();
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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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const input = "ABCD" + man_light_skin_tone_red_hair;
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const segments = segmenter.segment(input);
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for (let i = 0; i < input.length; i++) {
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let idx = i < 4 ? i : 4;
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let expectation = i < 4 ? input[i] : man_light_skin_tone_red_hair;
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assertEquals({segment: expectation, index: idx, input},
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segments.containing(i));
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let result = [];
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for (let v of segments) {
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result.push(v.segment);
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result.push(":");
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// Ensure the value n passing into segments.containing(n) will not impact
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// the result of next().
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assertEquals({segment: expectation, index: idx, input},
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segments.containing(i));
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}
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assertEquals("A:B:C:D:" + man_light_skin_tone_red_hair + ":",
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result.join(""));
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}
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