1 /* 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 function bludgeonArguments() { if (0) arguments; return function g() {} } 27 h = bludgeonArguments(); 28 gc(); 29 30 var failed = false; 31 function pass(msg) 32 { 33 print("PASS: " + msg, "green"); 34 } 35 36 function fail(msg) 37 { 38 print("FAIL: " + msg, "red"); 39 failed = true; 40 } 41 42 function shouldBe(a, b) 43 { 44 var evalA; 45 try { 46 evalA = eval(a); 47 } catch(e) { 48 evalA = e; 49 } 50 51 if (evalA == b || isNaN(evalA) && typeof evalA == 'number' && isNaN(b) && typeof b == 'number') 52 pass(a + " should be " + b + " and is."); 53 else 54 fail(a + " should be " + b + " but instead is " + evalA + "."); 55 } 56 57 function shouldThrow(a) 58 { 59 var evalA; 60 try { 61 eval(a); 62 } catch(e) { 63 pass(a + " threw: " + e); 64 return; 65 } 66 67 fail(a + " did not throw an exception."); 68 } 69 70 function globalStaticFunction() 71 { 72 return 4; 73 } 74 75 shouldBe("globalStaticValue", 3); 76 shouldBe("globalStaticFunction()", 4); 77 78 shouldBe("typeof MyObject", "function"); // our object implements 'call' 79 MyObject.cantFind = 1; 80 shouldBe("MyObject.cantFind", undefined); 81 MyObject.regularType = 1; 82 shouldBe("MyObject.regularType", 1); 83 MyObject.alwaysOne = 2; 84 shouldBe("MyObject.alwaysOne", 1); 85 MyObject.cantDelete = 1; 86 delete MyObject.cantDelete; 87 shouldBe("MyObject.cantDelete", 1); 88 shouldBe("delete MyObject.throwOnDelete", "an exception"); 89 MyObject.cantSet = 1; 90 shouldBe("MyObject.cantSet", undefined); 91 shouldBe("MyObject.throwOnGet", "an exception"); 92 shouldBe("MyObject.throwOnSet = 5", "an exception"); 93 shouldBe("MyObject('throwOnCall')", "an exception"); 94 shouldBe("new MyObject('throwOnConstruct')", "an exception"); 95 shouldBe("'throwOnHasInstance' instanceof MyObject", "an exception"); 96 97 var foundMyPropertyName = false; 98 var foundRegularType = false; 99 for (var p in MyObject) { 100 if (p == "myPropertyName") 101 foundMyPropertyName = true; 102 if (p == "regularType") 103 foundRegularType = true; 104 } 105 106 if (foundMyPropertyName) 107 pass("MyObject.myPropertyName was enumerated"); 108 else 109 fail("MyObject.myPropertyName was not enumerated"); 110 111 if (foundRegularType) 112 pass("MyObject.regularType was enumerated"); 113 else 114 fail("MyObject.regularType was not enumerated"); 115 116 var alwaysOneDescriptor = Object.getOwnPropertyDescriptor(MyObject, "alwaysOne"); 117 shouldBe('typeof alwaysOneDescriptor', "object"); 118 shouldBe('alwaysOneDescriptor.value', MyObject.alwaysOne); 119 shouldBe('alwaysOneDescriptor.configurable', true); 120 shouldBe('alwaysOneDescriptor.enumerable', false); // Actually it is. 121 var cantFindDescriptor = Object.getOwnPropertyDescriptor(MyObject, "cantFind"); 122 shouldBe('typeof cantFindDescriptor', "object"); 123 shouldBe('cantFindDescriptor.value', MyObject.cantFind); 124 shouldBe('cantFindDescriptor.configurable', true); 125 shouldBe('cantFindDescriptor.enumerable', false); 126 try { 127 // If getOwnPropertyDescriptor() returned an access descriptor, this wouldn't throw. 128 Object.getOwnPropertyDescriptor(MyObject, "throwOnGet"); 129 } catch (e) { 130 pass("getting property descriptor of throwOnGet threw exception"); 131 } 132 var myPropertyNameDescriptor = Object.getOwnPropertyDescriptor(MyObject, "myPropertyName"); 133 shouldBe('typeof myPropertyNameDescriptor', "object"); 134 shouldBe('myPropertyNameDescriptor.value', MyObject.myPropertyName); 135 shouldBe('myPropertyNameDescriptor.configurable', true); 136 shouldBe('myPropertyNameDescriptor.enumerable', false); // Actually it is. 137 try { 138 // if getOwnPropertyDescriptor() returned an access descriptor, this wouldn't throw. 139 Object.getOwnPropertyDescriptor(MyObject, "hasPropertyLie"); 140 } catch (e) { 141 pass("getting property descriptor of hasPropertyLie threw exception"); 142 } 143 shouldBe('Object.getOwnPropertyDescriptor(MyObject, "doesNotExist")', undefined); 144 145 myObject = new MyObject(); 146 147 shouldBe("delete MyObject.regularType", true); 148 shouldBe("MyObject.regularType", undefined); 149 shouldBe("MyObject(0)", 1); 150 shouldBe("MyObject()", undefined); 151 shouldBe("typeof myObject", "object"); 152 shouldBe("MyObject ? 1 : 0", true); // toBoolean 153 shouldBe("+MyObject", 1); // toNumber 154 shouldBe("(MyObject.toString())", "[object MyObject]"); // toString 155 shouldBe("String(MyObject)", "MyObjectAsString"); // type conversion to string 156 shouldBe("MyObject - 0", 1); // toNumber 157 158 shouldBe("typeof MyConstructor", "object"); 159 constructedObject = new MyConstructor(1); 160 shouldBe("typeof constructedObject", "object"); 161 shouldBe("constructedObject.value", 1); 162 shouldBe("myObject instanceof MyObject", true); 163 shouldBe("(new Object()) instanceof MyObject", false); 164 165 shouldThrow("MyObject.nullGetSet = 1"); 166 shouldThrow("MyObject.nullGetSet"); 167 shouldThrow("MyObject.nullCall()"); 168 shouldThrow("MyObject.hasPropertyLie"); 169 170 derived = new Derived(); 171 172 shouldBe("derived instanceof Derived", true); 173 shouldBe("derived instanceof Base", true); 174 175 // base properties and functions return 1 when called/gotten; derived, 2 176 shouldBe("derived.baseProtoDup()", 2); 177 shouldBe("derived.baseProto()", 1); 178 shouldBe("derived.baseDup", 2); 179 shouldBe("derived.baseOnly", 1); 180 shouldBe("derived.protoOnly()", 2); 181 shouldBe("derived.protoDup", 2); 182 shouldBe("derived.derivedOnly", 2) 183 184 // base properties throw 1 when set; derived, 2 185 shouldBe("derived.baseDup = 0", 2); 186 shouldBe("derived.baseOnly = 0", 1); 187 shouldBe("derived.derivedOnly = 0", 2) 188 shouldBe("derived.protoDup = 0", 2); 189 190 derived2 = new Derived2(); 191 192 shouldBe("derived2 instanceof Derived2", true); 193 shouldBe("derived2 instanceof Derived", true); 194 shouldBe("derived2 instanceof Base", true); 195 196 // base properties and functions return 1 when called/gotten; derived, 2 197 shouldBe("derived2.baseProtoDup()", 2); 198 shouldBe("derived2.baseProto()", 1); 199 shouldBe("derived2.baseDup", 2); 200 shouldBe("derived2.baseOnly", 1); 201 shouldBe("derived2.protoOnly()", 2); 202 shouldBe("derived2.protoDup", 2); 203 shouldBe("derived2.derivedOnly", 2) 204 205 // base properties throw 1 when set; derived, 2 206 shouldBe("derived2.baseDup = 0", 2); 207 shouldBe("derived2.baseOnly = 0", 1); 208 shouldBe("derived2.derivedOnly = 0", 2) 209 shouldBe("derived2.protoDup = 0", 2); 210 211 shouldBe('Object.getOwnPropertyDescriptor(derived, "baseProto")', undefined); 212 shouldBe('Object.getOwnPropertyDescriptor(derived, "baseProtoDup")', undefined); 213 var baseDupDescriptor = Object.getOwnPropertyDescriptor(derived, "baseDup"); 214 shouldBe('typeof baseDupDescriptor', "object"); 215 shouldBe('baseDupDescriptor.value', derived.baseDup); 216 shouldBe('baseDupDescriptor.configurable', true); 217 shouldBe('baseDupDescriptor.enumerable', false); 218 var baseOnlyDescriptor = Object.getOwnPropertyDescriptor(derived, "baseOnly"); 219 shouldBe('typeof baseOnlyDescriptor', "object"); 220 shouldBe('baseOnlyDescriptor.value', derived.baseOnly); 221 shouldBe('baseOnlyDescriptor.configurable', true); 222 shouldBe('baseOnlyDescriptor.enumerable', false); 223 shouldBe('Object.getOwnPropertyDescriptor(derived, "protoOnly")', undefined); 224 var protoDupDescriptor = Object.getOwnPropertyDescriptor(derived, "protoDup"); 225 shouldBe('typeof protoDupDescriptor', "object"); 226 shouldBe('protoDupDescriptor.value', derived.protoDup); 227 shouldBe('protoDupDescriptor.configurable', true); 228 shouldBe('protoDupDescriptor.enumerable', false); 229 var derivedOnlyDescriptor = Object.getOwnPropertyDescriptor(derived, "derivedOnly"); 230 shouldBe('typeof derivedOnlyDescriptor', "object"); 231 shouldBe('derivedOnlyDescriptor.value', derived.derivedOnly); 232 shouldBe('derivedOnlyDescriptor.configurable', true); 233 shouldBe('derivedOnlyDescriptor.enumerable', false); 234 235 shouldBe("undefined instanceof MyObject", false); 236 EvilExceptionObject.hasInstance = function f() { return f(); }; 237 EvilExceptionObject.__proto__ = undefined; 238 shouldThrow("undefined instanceof EvilExceptionObject"); 239 EvilExceptionObject.hasInstance = function () { return true; }; 240 shouldBe("undefined instanceof EvilExceptionObject", true); 241 242 EvilExceptionObject.toNumber = function f() { return f(); } 243 shouldThrow("EvilExceptionObject*5"); 244 EvilExceptionObject.toStringExplicit = function f() { return f(); } 245 shouldThrow("String(EvilExceptionObject)"); 246 247 shouldBe("EmptyObject", "[object CallbackObject]"); 248 249 if (failed) 250 throw "Some tests failed"; 251 252