mirror of https://github.com/tc39/test262.git
60 lines
2.7 KiB
JavaScript
60 lines
2.7 KiB
JavaScript
// Copyright (C) 2019 Leo Balter. 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.create
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description: >
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The Properties argument is cast to an object if not undefined
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info: |
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Object.create ( O, Properties )
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3. If Properties is not undefined, then
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a. Return ? ObjectDefineProperties(obj, Properties).
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Runtime Semantics: ObjectDefineProperties ( O, Properties )
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2. Let props be ? ToObject(Properties).
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3. Let keys be ? props.[[OwnPropertyKeys]]().
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...
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// All enumerable keys are added to the created object.
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features: [Symbol]
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---*/
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var proto = {};
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var obj;
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obj = Object.create(proto, true);
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assert.sameValue(Object.getPrototypeOf(obj), proto, 'Properties is true: prototype is set');
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assert.sameValue(Object.getOwnPropertyNames(obj).length, 0, 'Properties is true: no keys set');
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assert.sameValue(Object.getOwnPropertySymbols(obj).length, 0, 'Properties is true: no symbol keys set');
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obj = undefined;
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obj = Object.create(proto, false);
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assert.sameValue(Object.getPrototypeOf(obj), proto, 'Properties is false: prototype is set');
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assert.sameValue(Object.getOwnPropertyNames(obj).length, 0, 'Properties is false: no keys set');
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assert.sameValue(Object.getOwnPropertySymbols(obj).length, 0, 'Properties is false: no symbol keys set');
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obj = undefined;
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obj = Object.create(proto, 1);
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assert.sameValue(Object.getPrototypeOf(obj), proto, 'Properties is 1: prototype is set');
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assert.sameValue(Object.getOwnPropertyNames(obj).length, 0, 'Properties is 1: no keys set');
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assert.sameValue(Object.getOwnPropertySymbols(obj).length, 0, 'Properties is 1: no symbol keys set');
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obj = undefined;
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obj = Object.create(proto, NaN);
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assert.sameValue(Object.getPrototypeOf(obj), proto, 'Properties is NaN: prototype is set');
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assert.sameValue(Object.getOwnPropertyNames(obj).length, 0, 'Properties is NaN: no keys set');
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assert.sameValue(Object.getOwnPropertySymbols(obj).length, 0, 'Properties is NaN: no symbol keys set');
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obj = undefined;
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obj = Object.create(proto, '');
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assert.sameValue(Object.getPrototypeOf(obj), proto, 'Properties is the empty string: prototype is set');
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assert.sameValue(Object.getOwnPropertyNames(obj).length, 0, 'Properties is the empty string: no keys set');
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assert.sameValue(Object.getOwnPropertySymbols(obj).length, 0, 'Properties is the empty string: no symbol keys set');
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obj = undefined;
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obj = Object.create(proto, Symbol('s'));
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assert.sameValue(Object.getPrototypeOf(obj), proto, 'Properties is symbol: prototype is set');
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assert.sameValue(Object.getOwnPropertyNames(obj).length, 0, 'Properties is symbol: no keys set');
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assert.sameValue(Object.getOwnPropertySymbols(obj).length, 0, 'Properties is symbol: no symbol keys set');
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