mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
99 lines
3.1 KiB
JavaScript
99 lines
3.1 KiB
JavaScript
// Copyright 2015 Samsung Electronics Co., Ltd.
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// Copyright 2015 University of Szeged.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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var obj = {};
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// Test if the toString fails.
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try {
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obj.propertyIsEnumerable({ toString: function() { throw new ReferenceError ("foo"); } });
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assert (false);
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} catch (e) {
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assert (e.message === "foo");
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assert (e instanceof ReferenceError);
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}
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// Test if the toObject fails.
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var obj1;
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try {
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obj1.propertyIsEnumerable("fail");
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assert (false);
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} catch (e) {
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assert (e instanceof TypeError);
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}
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var array = [];
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obj.prop = "bar";
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array[0] = "bar";
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assert (obj.propertyIsEnumerable('prop') === true);
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assert (array.propertyIsEnumerable(0) === true);
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assert (obj.propertyIsEnumerable('length') === false);
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assert (array.propertyIsEnumerable('length') === false);
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assert (Math.propertyIsEnumerable('random') === false);
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// Creating a new property
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Object.defineProperty(obj, 'prop1', { value: 'foo', enumerable: true });
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Object.defineProperty(obj, 'prop2', { value: 'foo', enumerable: false });
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Object.defineProperty(obj, 'prop3', { value: 'foo' });
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assert (obj.propertyIsEnumerable('prop1') === true);
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assert (obj.propertyIsEnumerable('prop2') === false);
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assert (obj.propertyIsEnumerable('prop3') === false);
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Object.defineProperty(array, 'prop1', { value: 'foo', enumerable: true });
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Object.defineProperty(array, 'prop2', { value: 'foo', enumerable: false });
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Object.defineProperty(array, 'prop3', { value: 'foo' });
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assert (array.propertyIsEnumerable('prop1') === true);
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assert (array.propertyIsEnumerable('prop2') === false);
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assert (array.propertyIsEnumerable('prop3') === false);
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// Modify an existing one
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Object.defineProperty(obj, 'prop', { value: 'foo', enumerable: false });
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assert (obj.propertyIsEnumerable('prop') === false);
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Object.defineProperty(obj, 'prop', { value: 'foo', enumerable: true });
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assert (obj.propertyIsEnumerable('prop') === true);
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Object.defineProperty(array, 0, { value: 'foo', enumerable: false });
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assert (array.propertyIsEnumerable(0) === false);
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Object.defineProperty(array, 0, { value: 'foo', enumerable: true });
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assert (array.propertyIsEnumerable(0) === true);
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// Enumerability of inherited properties
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function construct1()
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{
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this.prop1 = 'foo';
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}
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function construct2()
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{
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this.prop2 = 'foo';
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}
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construct2.prototype = new construct1;
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construct2.prototype.constructor = construct2;
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var obj2 = new construct2();
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obj2.prop3 = 'foo';
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assert (obj2.propertyIsEnumerable('prop3') === true);
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assert (obj2.propertyIsEnumerable('prop2') === true);
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assert (obj2.propertyIsEnumerable('prop1') === false);
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obj2.prop1 = 'foo';
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assert (obj2.propertyIsEnumerable('prop1') === true);
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