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bad7c0487e
* Add tests for Object.hasOwn * Update test/built-ins/Object/hasOwn/length.js Co-authored-by: Jordan Harband <ljharb@gmail.com> * Update test/built-ins/Object/hasOwn/name.js Co-authored-by: Jordan Harband <ljharb@gmail.com> * Fixup comments for Object.hasOwn * Add Object.hasOwn descriptor test * use assert.sameValue with true instead of assert() * remove extra semicolons * Remove old $ERROR style tests from hasown * Fix thrown error type in hasown tests * Fix incorrect test cases Co-authored-by: Jordan Harband <ljharb@gmail.com>
36 lines
764 B
JavaScript
36 lines
764 B
JavaScript
// Copyright (C) 2021 Jamie Kyle. 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-object.hasown
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description: Object.hasOwn with symbol and @@toPrimitive conversion
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info: |
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Object.hasOwn ( _O_, _P_ )
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1. Let _obj_ be ? ToObject(_O_).
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1. Let _key_ be ? ToPropertyKey(_P_).
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...
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author: Jamie Kyle
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features: [Symbol.toPrimitive, Object.hasOwn]
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---*/
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var obj = {};
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var sym = Symbol();
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var callCount = 0;
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var wrapper = {};
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wrapper[Symbol.toPrimitive] = function() {
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callCount += 1;
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return sym;
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};
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obj[sym] = 0;
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assert.sameValue(
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Object.hasOwn(obj, wrapper),
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true,
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"Returns true if symbol own property found"
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);
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assert.sameValue(callCount, 1, "toPrimitive method called exactly once");
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