1/* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16/* 17 * @tc.name:setobjectwithproto 18 * @tc.desc:test set object with proto 19 * @tc.type: FUNC 20 * @tc.require: issueI5NO8G 21 */ 22var object = { 23 __proto__: null 24}; 25 26print(Object.getPrototypeOf(object)); 27 28class C32 extends String { 29 30} 31let obj1 = new C32(); 32print(obj1.__proto__ == C32.prototype); 33print(C32.__proto__ == String); 34C32.__proto__ = Array; 35let obj2 = new C32(); 36print(obj2.__proto__ == C32.prototype); 37print(C32.__proto__ == Array); 38 39Float64Array.__proto__ = Float32Array 40new Float64Array(); 41print("test new Float64Array Suc") 42 43var normalValues = [ 44 1, 45 true, 46 'string', 47 Symbol() 48]; 49 50function getObjects() { 51 function func() {} 52 return [ 53 func, 54 new func(), 55 {x: 5}, 56 /regexp/, 57 ['array'], 58 new Date(), 59 new Number(1), 60 new Boolean(true), 61 new String('str'), 62 Object(Symbol()) 63 ]; 64} 65 66function TestSetPrototypeOf1() { 67 var object = {}; 68 var oldProto = { 69 x: 'old x', 70 y: 'old y' 71 }; 72 Object.setPrototypeOf(object, oldProto); 73 print(object.x); 74 print(object.y); 75 var newProto = { 76 x: 'new x' 77 }; 78 Object.setPrototypeOf(object, newProto); 79 print(object.x); 80} 81TestSetPrototypeOf1(); 82 83function TestSetPrototypeOf2() { 84 for (var i = 0; i < normalValues.length; i++) { 85 var value = normalValues[i]; 86 var proto = Object.getPrototypeOf(value); 87 if (Object.setPrototypeOf(value, {}) != value) { 88 return false; 89 } 90 if (proto != Object.getPrototypeOf(value)) { 91 return false; 92 } 93 } 94 return true; 95} 96 97print(TestSetPrototypeOf2()); 98 99function TestSetPrototypeOf(object, proto) { 100 return (Object.setPrototypeOf(object, proto) === object) && 101 (Object.getPrototypeOf(object) === proto); 102} 103 104function TestSetPrototypeOf3() { 105 var objects1 = getObjects(); 106 var objects2 = getObjects(); 107 for (var i = 0; i < objects1.length; i++) { 108 for (var j = 0; j < objects2.length; j++) { 109 if (!TestSetPrototypeOf(objects1[i], objects2[j])) { 110 return false; 111 } 112 } 113 } 114 return true; 115} 116print(TestSetPrototypeOf3());