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// Copyright 2018 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-Intl.RelativeTimeFormat
description: Checks that RelativeTimeFormat can be subclassed.
info: |
Intl.RelativeTimeFormat ( [ locales [ , options ] ] )
2. Let relativeTimeFormat be ! OrdinaryCreateFromConstructor(NewTarget, "%RelativeTimeFormatPrototype%", « [[InitializedRelativeTimeFormat]] »).
features: [Intl.RelativeTimeFormat]
---*/
class CustomRelativeTimeFormat extends Intl.RelativeTimeFormat {
constructor(locales, options) {
super(locales, options);
this.isCustom = true;
}
}
const locale = "de";
const value = 7;
const unit = "day";
const real_rtf = new Intl.RelativeTimeFormat(locale);
assert.sameValue(real_rtf.isCustom, undefined, "Custom property");
const custom_rtf = new CustomRelativeTimeFormat(locale);
assert.sameValue(custom_rtf.isCustom, true, "Custom property");
assert.sameValue(custom_rtf.format(value, unit),
real_rtf.format(value, unit),
"Direct call");
assert.sameValue(Intl.RelativeTimeFormat.prototype.format.call(custom_rtf, value, unit),
Intl.RelativeTimeFormat.prototype.format.call(real_rtf, value, unit),
"Indirect call");
assert.sameValue(Object.getPrototypeOf(custom_rtf), CustomRelativeTimeFormat.prototype, "Prototype");
reportCompare(0, 0);