249bf75e0c
Both of them shipped in Chrome 49 without incident. Also move relevant tests from harmony/ to es6/. Review URL: https://codereview.chromium.org/1815773002 Cr-Commit-Position: refs/heads/master@{#34964}
122 lines
4.7 KiB
JavaScript
122 lines
4.7 KiB
JavaScript
// Copyright 2015 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// This file only tests very simple descriptors that always have
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// configurable, enumerable, and writable set to true.
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// This is adapted from mjsunit/get-own-property-descriptor.js.
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function get() { return x; }
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function set(x) { this.x = x; }
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var obj = {x: 1};
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obj.__defineGetter__("accessor", get);
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obj.__defineSetter__("accessor", set);
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var a = new Array();
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a[1] = 42;
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obj[1] = 42;
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var descIsData = Reflect.getOwnPropertyDescriptor(obj, 'x');
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assertTrue(descIsData.enumerable);
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assertTrue(descIsData.writable);
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assertTrue(descIsData.configurable);
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var descIsAccessor = Reflect.getOwnPropertyDescriptor(obj, 'accessor');
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assertTrue(descIsAccessor.enumerable);
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assertTrue(descIsAccessor.configurable);
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assertTrue(descIsAccessor.get == get);
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assertTrue(descIsAccessor.set == set);
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var descIsNotData = Reflect.getOwnPropertyDescriptor(obj, 'not-x');
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assertTrue(descIsNotData == undefined);
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var descIsNotAccessor = Reflect.getOwnPropertyDescriptor(obj, 'not-accessor');
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assertTrue(descIsNotAccessor == undefined);
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var descArray = Reflect.getOwnPropertyDescriptor(a, '1');
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assertTrue(descArray.enumerable);
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assertTrue(descArray.configurable);
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assertTrue(descArray.writable);
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assertEquals(descArray.value, 42);
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var descObjectElement = Reflect.getOwnPropertyDescriptor(obj, '1');
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assertTrue(descObjectElement.enumerable);
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assertTrue(descObjectElement.configurable);
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assertTrue(descObjectElement.writable);
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assertEquals(descObjectElement.value, 42);
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// String objects.
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var a = new String('foobar');
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for (var i = 0; i < a.length; i++) {
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var descStringObject = Reflect.getOwnPropertyDescriptor(a, i);
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assertTrue(descStringObject.enumerable);
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assertFalse(descStringObject.configurable);
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assertFalse(descStringObject.writable);
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assertEquals(descStringObject.value, a.substring(i, i+1));
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}
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// Support for additional attributes on string objects.
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a.x = 42;
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a[10] = 'foo';
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var descStringProperty = Reflect.getOwnPropertyDescriptor(a, 'x');
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assertTrue(descStringProperty.enumerable);
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assertTrue(descStringProperty.configurable);
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assertTrue(descStringProperty.writable);
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assertEquals(descStringProperty.value, 42);
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var descStringElement = Reflect.getOwnPropertyDescriptor(a, '10');
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assertTrue(descStringElement.enumerable);
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assertTrue(descStringElement.configurable);
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assertTrue(descStringElement.writable);
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assertEquals(descStringElement.value, 'foo');
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// Test that elements in the prototype chain is not returned.
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var proto = {};
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proto[10] = 42;
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var objWithProto = new Array();
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objWithProto.prototype = proto;
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objWithProto[0] = 'bar';
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var descWithProto = Reflect.getOwnPropertyDescriptor(objWithProto, '10');
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assertEquals(undefined, descWithProto);
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// Test elements on global proxy object.
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var global = (function() { return this; })();
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global[42] = 42;
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function el_getter() { return 239; };
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function el_setter() {};
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Object.defineProperty(global, '239', {get: el_getter, set: el_setter});
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var descRegularElement = Reflect.getOwnPropertyDescriptor(global, '42');
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assertEquals(42, descRegularElement.value);
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var descAccessorElement = Reflect.getOwnPropertyDescriptor(global, '239');
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assertEquals(el_getter, descAccessorElement.get);
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assertEquals(el_setter, descAccessorElement.set);
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