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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 value of index which throws.
info: |
%Segments.prototype%.containing ( index )
6. Let n be ? ToInteger(index).
7. If n < 0 or n ≥ len, return undefined.
8. Let startIndex be ! FindBoundary(segmenter, string, n, before).
ToInteger ( argument )
1. Let number be ? ToNumber(argument).
ToNumber ( argument )
Symbol | Throw a TypeError exception.
BigInt | Throw a TypeError exception.
features: [Intl.Segmenter]
---*/
const input = "a b c";
const granularities = [undefined, "grapheme", "word", "sentence"];
const index_throws = [
// Symbol
Symbol(),
// BigInt
0n,
-1n,
1n,
BigInt(0),
BigInt(1),
BigInt(-1),
BigInt(input.length),
];
granularities.forEach(
function(granularity) {
const segmenter = new Intl.Segmenter(undefined, {granularity});
const segment = segmenter.segment(input);
index_throws.forEach(function(index) {
assert.throws(TypeError, () => {segment.containing(index);})
});
});
reportCompare(0, 0);
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