mirror of https://github.com/tc39/test262.git
32 lines
964 B
JavaScript
32 lines
964 B
JavaScript
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// Copyright 2020 Apple Inc. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-unwrapnumberformat
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description: >
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Tests that [[FallbackSymbol]]'s [[Description]] is "IntlLegacyConstructedSymbol" if normative optional is implemented.
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author: Yusuke Suzuki
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---*/
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let object = new Intl.NumberFormat();
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let newObject = Intl.NumberFormat.call(object);
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let symbol = null;
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let error = null;
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try {
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let proxy = new Proxy(newObject, {
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get(target, property) {
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symbol = property;
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return target[property];
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}
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});
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Intl.NumberFormat.prototype.resolvedOptions.call(proxy);
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} catch (e) {
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// If normative optional is not implemented, an error will be thrown.
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error = e;
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assert(error instanceof TypeError);
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}
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if (error === null) {
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assert.sameValue(typeof symbol, "symbol");
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assert.sameValue(symbol.description, "IntlLegacyConstructedSymbol");
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}
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