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// Copyright (C) 2019 Leo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-Intl.DisplayNames
description: >
Return abrupt completion from an invalid localeMatcher option
info: |
Intl.DisplayNames ([ locales [ , options ]])
1. If NewTarget is undefined, throw a TypeError exception.
2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%",
« [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
...
4. If options is undefined, then
a. Let options be ObjectCreate(null).
5. Else
a. Let options be ? ToObject(options).
...
8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
GetOption ( options, property, type, values, fallback )
1. Let value be ? Get(options, property).
2. If value is not undefined, then
...
c. If type is "string", then
i. Let value be ? ToString(value).
d. If values is not undefined, then
i. If values does not contain an element equal to value, throw a RangeError exception.
...
features: [Intl.DisplayNames]
locale: [en]
---*/
var options = {
localeMatcher: 'bestfit' // not "best fit"
};
assert.throws(RangeError, () => {
new Intl.DisplayNames('en', options);
}, 'bestfit');
options.localeMatcher = 'look up';
assert.throws(RangeError, () => {
new Intl.DisplayNames('en', options);
}, 'look up');
options.localeMatcher = null;
assert.throws(RangeError, () => {
new Intl.DisplayNames('en', options);
}, 'null');
options.localeMatcher = '';
assert.throws(RangeError, () => {
new Intl.DisplayNames('en', options);
}, 'the empty string');
// The world could burn
options.localeMatcher = ['lookup', 'best fit'];
assert.throws(RangeError, () => {
new Intl.DisplayNames('en', options);
}, 'an array with the valid options is not necessarily valid');
reportCompare(0, 0);