This test checks the behavior of Intl.PluralRules as described in the ECMAScript Internationalization API Specification.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS Intl.PluralRules is an instance of Function
PASS Intl.PluralRules() threw exception TypeError: calling PluralRules constructor without new is invalid.
PASS Intl.PluralRules.call({}) threw exception TypeError: calling PluralRules constructor without new is invalid.
PASS new Intl.PluralRules('$') threw exception RangeError: invalid language tag: $.
PASS new Intl.PluralRules('en', null) threw exception TypeError: null is not an object (evaluating 'new Intl.PluralRules('en', null)').
PASS new Intl.PluralRules() is an instance of Intl.PluralRules
PASS class DerivedPluralRules extends Intl.PluralRules {};(new DerivedPluralRules) instanceof DerivedPluralRules is true
PASS class DerivedPluralRules extends Intl.PluralRules {};(new DerivedPluralRules) instanceof Intl.PluralRules is true
PASS class DerivedPluralRules extends Intl.PluralRules {};new DerivedPluralRules('en').select(1) === 'one' is true
PASS class DerivedPluralRules extends Intl.PluralRules {};Object.getPrototypeOf(new DerivedPluralRules) === DerivedPluralRules.prototype is true
PASS class DerivedPluralRules extends Intl.PluralRules {};Object.getPrototypeOf(Object.getPrototypeOf(new DerivedPluralRules)) === Intl.PluralRules.prototype is true
PASS Intl.PluralRules.length is 0
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules, 'prototype').writable is false
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules, 'prototype').enumerable is false
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules, 'prototype').configurable is false
PASS Intl.PluralRules.supportedLocalesOf.length is 1
PASS Intl.PluralRules.supportedLocalesOf() is an instance of Array
PASS Intl.PluralRules.supportedLocalesOf.call(null, 'en') is [ 'en' ]
PASS Intl.PluralRules.supportedLocalesOf.call({}, 'en') is [ 'en' ]
PASS Intl.PluralRules.supportedLocalesOf.call(1, 'en') is [ 'en' ]
PASS Intl.PluralRules.supportedLocalesOf(9) is []
PASS Intl.PluralRules.supportedLocalesOf('en') is [ 'en' ]
PASS Intl.PluralRules.supportedLocalesOf({ length: 4, 1: 'en', 0: 'es', 3: 'de' }) is [ 'es', 'en', 'de' ]
PASS Intl.PluralRules.supportedLocalesOf([ 'en', 'pt', 'en', 'es' ]) is [ 'en', 'pt', 'es' ]
PASS Intl.PluralRules.supportedLocalesOf('En-laTn-us-variant2-variant1-1abc-U-ko-tRue-A-aa-aaa-x-RESERVED') is [ 'en-Latn-US-variant2-variant1-1abc-a-aa-aaa-u-ko-true-x-reserved' ]
PASS Intl.PluralRules.supportedLocalesOf('no-bok') is [ 'nb' ]
PASS Intl.PluralRules.supportedLocalesOf('x-some-thing') is []
PASS Intl.PluralRules.supportedLocalesOf(Object.create(null, { length: { get() { throw Error('a') } } })) threw exception Error: a.
PASS Intl.PluralRules.supportedLocalesOf(Object.create(null, { length: { value: 1 }, 0: { get() { throw Error('b') } } })) threw exception Error: b.
PASS Intl.PluralRules.supportedLocalesOf([ { toString() { throw Error('c') } } ]) threw exception Error: c.
PASS Intl.PluralRules.supportedLocalesOf([ 5 ]) threw exception TypeError: locale value must be a string or object.
PASS Intl.PluralRules.supportedLocalesOf('') threw exception RangeError: invalid language tag: .
PASS Intl.PluralRules.supportedLocalesOf('a') threw exception RangeError: invalid language tag: a.
PASS Intl.PluralRules.supportedLocalesOf('abcdefghij') threw exception RangeError: invalid language tag: abcdefghij.
PASS Intl.PluralRules.supportedLocalesOf('#$') threw exception RangeError: invalid language tag: #$.
PASS Intl.PluralRules.supportedLocalesOf('en-@-abc') threw exception RangeError: invalid language tag: en-@-abc.
PASS Intl.PluralRules.supportedLocalesOf('en-u') threw exception RangeError: invalid language tag: en-u.
PASS Intl.PluralRules.supportedLocalesOf('en-u-kn-true-u-ko-true') threw exception RangeError: invalid language tag: en-u-kn-true-u-ko-true.
PASS Intl.PluralRules.supportedLocalesOf('en-x') threw exception RangeError: invalid language tag: en-x.
PASS Intl.PluralRules.supportedLocalesOf('en-*') threw exception RangeError: invalid language tag: en-*.
PASS Intl.PluralRules.supportedLocalesOf('en-') threw exception RangeError: invalid language tag: en-.
PASS Intl.PluralRules.supportedLocalesOf('en--US') threw exception RangeError: invalid language tag: en--US.
PASS Intl.PluralRules.supportedLocalesOf('de') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('de-DE') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('DE-de') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('cmn') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('cmn-Hans') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('CMN-hANS') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('cmn-hans-cn') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('es-419') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('es-419-u-nu-latn-cu-bob') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('i-klingon') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('cmn-hans-cn-t-ca-u-ca-x-t-u') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('enochian-enochian') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('de-gregory-u-ca-gregory') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('aa-a-foo-x-a-foo-bar') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('x-en-US-12345') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('x-12345-12345-en-US') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('x-en-US-12345-12345') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('x-en-u-foo') did not throw exception.
PASS Intl.PluralRules.supportedLocalesOf('x-en-u-foo-u-bar') did not throw exception.
PASS Object.getPrototypeOf(Intl.PluralRules.prototype) is Object.prototype
PASS Intl.PluralRules.prototype.constructor is Intl.PluralRules
PASS Intl.PluralRules.prototype[Symbol.toStringTag] is 'Object'
PASS Object.prototype.toString.call(Intl.PluralRules.prototype) is '[object Object]'
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules.prototype, Symbol.toStringTag).writable is false
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules.prototype, Symbol.toStringTag).enumerable is false
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules.prototype, Symbol.toStringTag).configurable is true
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules.prototype, 'select').value is an instance of Function
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules.prototype, 'select').writable is true
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules.prototype, 'select').enumerable is false
PASS Object.getOwnPropertyDescriptor(Intl.PluralRules.prototype, 'select').configurable is true
PASS new Intl.PluralRules().select === new Intl.PluralRules().select is true
PASS Intl.PluralRules.prototype.select.length is 1
PASS Intl.PluralRules.prototype.select.call(1) threw exception TypeError: Intl.PluralRules.prototype.select called on value that's not an object initialized as a PluralRules.
PASS Intl.PluralRules.prototype.select.call({}) threw exception TypeError: Intl.PluralRules.prototype.select called on value that's not an object initialized as a PluralRules.
PASS defaultPluralRules.select({ valueOf() { throw Error('4') } }) threw exception Error: 4.
PASS defaultPluralRules.select(1) is 'one'
PASS Intl.PluralRules.prototype.select.call(defaultPluralRules, 1) is 'one'
PASS defaultPluralRules.select(0) is 'other'
PASS defaultPluralRules.select(-1) is 'one'
PASS defaultPluralRules.select(2) is 'other'
PASS englishOrdinals.select(0) is 'other'
PASS englishOrdinals.select(1) is 'one'
PASS englishOrdinals.select(2) is 'two'
PASS englishOrdinals.select(3) is 'few'
PASS englishOrdinals.select(4) is 'other'
PASS englishOrdinals.select(11) is 'other'
PASS englishOrdinals.select(12) is 'other'
PASS englishOrdinals.select(13) is 'other'
PASS englishOrdinals.select(14) is 'other'
PASS englishOrdinals.select(21) is 'one'
PASS englishOrdinals.select(22) is 'two'
PASS englishOrdinals.select(23) is 'few'
PASS englishOrdinals.select(24) is 'other'
PASS englishOrdinals.select(101) is 'one'
PASS englishOrdinals.select(102) is 'two'
PASS englishOrdinals.select(103) is 'few'
PASS englishOrdinals.select(104) is 'other'
PASS arabicCardinals.select(0) is 'zero'
PASS arabicCardinals.select(1) is 'one'
PASS arabicCardinals.select(2) is 'two'
PASS arabicCardinals.select(3) is 'few'
PASS arabicCardinals.select(11) is 'many'
PASS Intl.PluralRules.prototype.resolvedOptions.length is 0
PASS Intl.PluralRules.prototype.resolvedOptions.call(5) threw exception TypeError: Intl.PluralRules.prototype.resolvedOptions called on value that's not an object initialized as a PluralRules.
PASS Intl.PluralRules.prototype.resolvedOptions.call({}) threw exception TypeError: Intl.PluralRules.prototype.resolvedOptions called on value that's not an object initialized as a PluralRules.
PASS defaultPluralRules.resolvedOptions() is an instance of Object
PASS defaultPluralRules.resolvedOptions() === defaultPluralRules.resolvedOptions() is false
PASS defaultPluralRules.resolvedOptions().type is 'cardinal'
PASS defaultPluralRules.resolvedOptions().minimumIntegerDigits is 1
PASS defaultPluralRules.resolvedOptions().minimumFractionDigits is 0
PASS defaultPluralRules.resolvedOptions().maximumFractionDigits is 3
PASS defaultPluralRules.resolvedOptions().minimumSignificantDigits is undefined
PASS defaultPluralRules.resolvedOptions().maximumSignificantDigits is undefined
PASS new Intl.PluralRules('en', { localeMatcher: { toString() { throw 'nope' } } }) threw exception nope.
PASS new Intl.PluralRules('en', { localeMatcher:'bad' }) threw exception RangeError: localeMatcher must be either "lookup" or "best fit".
PASS new Intl.PluralRules('en', { localeMatcher:'lookup' }) did not throw exception.
PASS new Intl.PluralRules('en', { localeMatcher:'best fit' }) did not throw exception.
PASS new Intl.PluralRules('en', {type: 'cardinal'}).resolvedOptions().type is 'cardinal'
PASS new Intl.PluralRules('en', {type: 'ordinal'}).resolvedOptions().type is 'ordinal'
PASS new Intl.PluralRules('en', {type: 'bad'}) threw exception RangeError: type must be "cardinal" or "ordinal".
PASS new Intl.PluralRules('en', {type: { toString() { throw 'badtype' } }}) threw exception badtype.
PASS new Intl.PluralRules('en', {minimumIntegerDigits: 1}).resolvedOptions().minimumIntegerDigits is 1
PASS new Intl.PluralRules('en', {minimumIntegerDigits: '2'}).resolvedOptions().minimumIntegerDigits is 2
PASS new Intl.PluralRules('en', {minimumIntegerDigits: {valueOf() { return 3; }}}).resolvedOptions().minimumIntegerDigits is 3
PASS new Intl.PluralRules('en', {minimumIntegerDigits: 4.9}).resolvedOptions().minimumIntegerDigits is 4
PASS new Intl.PluralRules('en', {minimumIntegerDigits: 21}).resolvedOptions().minimumIntegerDigits is 21
PASS new Intl.PluralRules('en', {minimumIntegerDigits: 0}) threw exception RangeError: minimumIntegerDigits is out of range.
PASS new Intl.PluralRules('en', {minimumIntegerDigits: 22}) threw exception RangeError: minimumIntegerDigits is out of range.
PASS new Intl.PluralRules('en', {minimumIntegerDigits: 0.9}) threw exception RangeError: minimumIntegerDigits is out of range.
PASS new Intl.PluralRules('en', {minimumIntegerDigits: 21.1}) threw exception RangeError: minimumIntegerDigits is out of range.
PASS new Intl.PluralRules('en', {minimumIntegerDigits: NaN}) threw exception RangeError: minimumIntegerDigits is out of range.
PASS new Intl.PluralRules('en', {minimumIntegerDigits: Infinity}) threw exception RangeError: minimumIntegerDigits is out of range.
PASS new Intl.PluralRules('en', { get minimumIntegerDigits() { throw 42; } }) threw exception 42.
PASS new Intl.PluralRules('en', {minimumIntegerDigits: {valueOf() { throw 42; }}}) threw exception 42.
PASS new Intl.PluralRules('en', {minimumFractionDigits: 0}).resolvedOptions().minimumFractionDigits is 0
PASS new Intl.PluralRules('en', {minimumFractionDigits: 0}).resolvedOptions().maximumFractionDigits is 3
PASS new Intl.PluralRules('en', {minimumFractionDigits: 6}).resolvedOptions().minimumFractionDigits is 6
PASS new Intl.PluralRules('en', {minimumFractionDigits: 6}).resolvedOptions().maximumFractionDigits is 6
PASS new Intl.PluralRules('en', {minimumFractionDigits: -1}) threw exception RangeError: minimumFractionDigits is out of range.
PASS new Intl.PluralRules('en', {minimumFractionDigits: 21}) threw exception RangeError: minimumFractionDigits is out of range.
PASS new Intl.PluralRules('en', {maximumFractionDigits: 6}).resolvedOptions().maximumFractionDigits is 6
PASS new Intl.PluralRules('en', {minimumFractionDigits: 7, maximumFractionDigits: 6}) threw exception RangeError: maximumFractionDigits is out of range.
PASS new Intl.PluralRules('en', {maximumFractionDigits: -1}) threw exception RangeError: maximumFractionDigits is out of range.
PASS new Intl.PluralRules('en', {maximumFractionDigits: 21}) threw exception RangeError: maximumFractionDigits is out of range.
PASS new Intl.PluralRules('en', {minimumSignificantDigits: 6}).resolvedOptions().minimumSignificantDigits is 6
PASS new Intl.PluralRules('en', {minimumSignificantDigits: 6}).resolvedOptions().maximumSignificantDigits is 21
PASS new Intl.PluralRules('en', {minimumSignificantDigits: 0}) threw exception RangeError: minimumSignificantDigits is out of range.
PASS new Intl.PluralRules('en', {minimumSignificantDigits: 22}) threw exception RangeError: minimumSignificantDigits is out of range.
PASS new Intl.PluralRules('en', {maximumSignificantDigits: 6}).resolvedOptions().minimumSignificantDigits is 1
PASS new Intl.PluralRules('en', {maximumSignificantDigits: 6}).resolvedOptions().maximumSignificantDigits is 6
PASS new Intl.PluralRules('en', {minimumSignificantDigits: 7, maximumSignificantDigits: 6}) threw exception RangeError: maximumSignificantDigits is out of range.
PASS new Intl.PluralRules('en', {maximumSignificantDigits: 0}) threw exception RangeError: maximumSignificantDigits is out of range.
PASS new Intl.PluralRules('en', {maximumSignificantDigits: 22}) threw exception RangeError: maximumSignificantDigits is out of range.
PASS new Intl.PluralRules('en', {maximumFractionDigits: 0}).select(1.4) is 'one'
PASS new Intl.PluralRules('en', {maximumSignificantDigits: 1}).select(1.4) is 'one'
PASS new Intl.PluralRules('en', {type: 'ordinal', maximumSignificantDigits: 2}).select(123) is 'other'
PASS new Intl.PluralRules('en', {type: 'ordinal', maximumSignificantDigits: 3}).select(123.4) is 'few'
PASS successfullyParsed is true

TEST COMPLETE