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// |reftest| skip-if(!Intl.Segmenter) -- Intl.Segmenter is not enabled unconditionally
// Copyright 2020 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%segmentsprototype%.containing
description: Verifies the cases which the input is unbreakable.
info: |
%Segments.prototype%.containing ( index )
8. Let startIndex be ! FindBoundary(segmenter, string, n, before).
9. Let endIndex be ! FindBoundary(segmenter, string, n, after).
features: [Intl.Segmenter]
---*/
const granularities = [undefined, "grapheme", "word", "sentence"];
// The following all contains only one segment in any granularity.
const inputs = [
"a",
" ",
"\ud800\udc00", // surrogate
"\ud800", // only leading surrogate
"\udc00", // only trailing surrogate
"台", // a Han character
"\u0301", // a modifier
"a\u0301", // ASCII + a modifier
"ซิ่", // a Thai cluster
"𐂰", // a Surrogate pair
"\uD83D\uDC4B\uD83C\uDFFB", // Emoji short sequence: waving_hand_light_skin_tone
"\uD83D\uDC68\uD83C\uDFFB\u200D\uD83E\uDDB0", // Emoji long sequence: man_light_skin_tone_red_hair
"\u1102", // Jamo L
"\u1162", // Jamo V
"\u11A9", // Jamo T
"\u1102\u1162", // Jamo LV
"\u1102\u1162\u11A9", // Jamo LVT
"\u1102\u1102", // Jamo L L
"\u1102\u1102\u1162", // Jamo L L V
"\u1102\u1102\u1162\u11A9", // Jamo L L V T
"\u1162\u1162", // Jamo V V
"\u1162\u11A9", // Jamo V T
"\u1102\u1162\u1162", // Jamo V V
"\u11A9\u11A9", // Jamo T T
"\u1102\u1162\u11A9\u11A9", // Jamo LVT T
];
granularities.forEach(
function(granularity) {
const segmenter = new Intl.Segmenter(undefined, {granularity});
inputs.forEach(function(input) {
const segment = segmenter.segment(input);
for (let index = 0; index < input.length; index++) {
const result = segment.containing(index);
assert.sameValue(0, result.index);
assert.sameValue(input, result.input);
assert.sameValue(input, result.segment);
}
});
});
reportCompare(0, 0);
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