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// |reftest| skip-if(!Intl.Segmenter) -- Intl.Segmenter is not enabled unconditionally
// Copyright 2018 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-Intl.Segmenter
description: Checks various cases for the locales argument to the Segmenter constructor.
info: |
Intl.Segmenter ([ locales [ , options ]])
3. Let _requestedLocales_ be ? CanonicalizeLocaleList(_locales_).
features: [Intl.Segmenter, Array.prototype.includes]
---*/
const defaultLocale = new Intl.Segmenter().resolvedOptions().locale;
const tests = [
[undefined, [defaultLocale], "undefined"],
["EN", ["en"], "Single value"],
[[], [defaultLocale], "Empty array"],
[["sr"], ["sr"], "Single-element array"],
[["fr", "ar"], ["fr", "ar"], "Two-element array"],
[["xyz", "ar"], ["ar"], "Two-element array with unknown code"],
[["en", "EN"], ["en"], "Duplicate value (canonical first)"],
[["EN", "en"], ["en"], "Duplicate value (canonical last)"],
[{ 0: "DE", length: 0 }, [defaultLocale], "Object with zero length"],
[{ 0: "DE", length: 1 }, ["de"], "Object with length"],
[{ 0: "ja", 1: "fr" }, [defaultLocale], "Object without length, indexed from 0"],
[{ 1: "ja", 2: "fr" }, [defaultLocale], "Object without length, indexed from 1"],
];
const errorTests = [
[["en-GB-oed"], "Grandfathered"],
[["x-private"], "Private", ["lookup"]],
];
for (const [locales, expected, name, matchers = ["best fit", "lookup"]] of tests) {
for (const localeMatcher of matchers) {
const segmenter = new Intl.Segmenter(locales, { localeMatcher });
const actual = segmenter.resolvedOptions().locale;
assert(expected.includes(actual), `${name}: expected one of ${expected}, found ${actual}`);
}
}
for (const [locales, name, matchers = ["best fit", "lookup"]] of errorTests) {
for (const localeMatcher of matchers) {
assert.throws(RangeError, function() {
new Intl.Segmenter(locales, { localeMatcher });
}, name);
}
}
reportCompare(0, 0);