API/tests/testapi.js

   1 /*
   2  * Copyright (C) 2006 Apple 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 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 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 shouldBe("this.globalStaticFunction()", 4);
  78
  79 function globalStaticFunction2() {
  80     return 10;
  81 }
  82 shouldBe("globalStaticFunction2();", 10);
  83 this.globalStaticFunction2 = function() { return 20; }
  84 shouldBe("globalStaticFunction2();", 20);
  85 shouldBe("this.globalStaticFunction2();", 20);
  86
  87 function iAmNotAStaticFunction() { return 10; }
  88 shouldBe("iAmNotAStaticFunction();", 10);
  89 this.iAmNotAStaticFunction = function() { return 20; }
  90 shouldBe("iAmNotAStaticFunction();", 20);
  91
  92 shouldBe("typeof MyObject", "function"); // our object implements 'call'
  93 MyObject.cantFind = 1;
  94 shouldBe("MyObject.cantFind", undefined);
  95 MyObject.regularType = 1;
  96 shouldBe("MyObject.regularType", 1);
  97 MyObject.alwaysOne = 2;
  98 shouldBe("MyObject.alwaysOne", 1);
  99 MyObject.cantDelete = 1;
 100 delete MyObject.cantDelete;
 101 shouldBe("MyObject.cantDelete", 1);
 102 shouldBe("delete MyObject.throwOnDelete", "an exception");
 103 MyObject.cantSet = 1;
 104 shouldBe("MyObject.cantSet", undefined);
 105 shouldBe("MyObject.throwOnGet", "an exception");
 106 shouldBe("MyObject.throwOnSet = 5", "an exception");
 107 shouldBe("MyObject('throwOnCall')", "an exception");
 108 shouldBe("new MyObject('throwOnConstruct')", "an exception");
 109 shouldBe("'throwOnHasInstance' instanceof MyObject", "an exception");
 110
 111 MyObject.nullGetForwardSet = 1;
 112 shouldBe("MyObject.nullGetForwardSet", 1);
 113
 114 var foundMyPropertyName = false;
 115 var foundRegularType = false;
 116 for (var p in MyObject) {
 117     if (p == "myPropertyName")
 118         foundMyPropertyName = true;
 119     if (p == "regularType")
 120         foundRegularType = true;
 121 }
 122
 123 if (foundMyPropertyName)
 124     pass("MyObject.myPropertyName was enumerated");
 125 else
 126     fail("MyObject.myPropertyName was not enumerated");
 127
 128 if (foundRegularType)
 129     pass("MyObject.regularType was enumerated");
 130 else
 131     fail("MyObject.regularType was not enumerated");
 132
 133 var alwaysOneDescriptor = Object.getOwnPropertyDescriptor(MyObject, "alwaysOne");
 134 shouldBe('typeof alwaysOneDescriptor', "object");
 135 shouldBe('alwaysOneDescriptor.value', MyObject.alwaysOne);
 136 shouldBe('alwaysOneDescriptor.configurable', true);
 137 shouldBe('alwaysOneDescriptor.enumerable', false); // Actually it is.
 138 var cantFindDescriptor = Object.getOwnPropertyDescriptor(MyObject, "cantFind");
 139 shouldBe('typeof cantFindDescriptor', "object");
 140 shouldBe('cantFindDescriptor.value', MyObject.cantFind);
 141 shouldBe('cantFindDescriptor.configurable', true);
 142 shouldBe('cantFindDescriptor.enumerable', false);
 143 try {
 144     // If getOwnPropertyDescriptor() returned an access descriptor, this wouldn't throw.
 145     Object.getOwnPropertyDescriptor(MyObject, "throwOnGet");
 146 } catch (e) {
 147     pass("getting property descriptor of throwOnGet threw exception");
 148 }
 149 var myPropertyNameDescriptor = Object.getOwnPropertyDescriptor(MyObject, "myPropertyName");
 150 shouldBe('typeof myPropertyNameDescriptor', "object");
 151 shouldBe('myPropertyNameDescriptor.value', MyObject.myPropertyName);
 152 shouldBe('myPropertyNameDescriptor.configurable', true);
 153 shouldBe('myPropertyNameDescriptor.enumerable', false); // Actually it is.
 154 try {
 155     // if getOwnPropertyDescriptor() returned an access descriptor, this wouldn't throw.
 156     Object.getOwnPropertyDescriptor(MyObject, "hasPropertyLie");
 157 } catch (e) {
 158     pass("getting property descriptor of hasPropertyLie threw exception");
 159 }
 160 shouldBe('Object.getOwnPropertyDescriptor(MyObject, "doesNotExist")', undefined);
 161
 162 myObject = new MyObject();
 163
 164 shouldBe("delete MyObject.regularType", true);
 165 shouldBe("MyObject.regularType", undefined);
 166 shouldBe("MyObject(0)", 1);
 167 shouldBe("MyObject()", undefined);
 168 shouldBe("typeof myObject", "object");
 169 shouldBe("MyObject ? 1 : 0", true); // toBoolean
 170 shouldBe("+MyObject", 1); // toNumber
 171 shouldBe("(Object.prototype.toString.call(MyObject))", "[object MyObject]"); // Object.prototype.toString
 172 shouldBe("(MyObject.toString())", "[object MyObject]"); // toString
 173 shouldBe("String(MyObject)", "MyObjectAsString"); // toString
 174 shouldBe("MyObject - 0", 1); // toNumber
 175 shouldBe("MyObject.valueOf()", 1); // valueOf
 176
 177 shouldBe("typeof MyConstructor", "object");
 178 constructedObject = new MyConstructor(1);
 179 shouldBe("typeof constructedObject", "object");
 180 shouldBe("constructedObject.value", 1);
 181 shouldBe("myObject instanceof MyObject", true);
 182 shouldBe("(new Object()) instanceof MyObject", false);
 183
 184 shouldThrow("new MyBadConstructor()");
 185
 186 MyObject.nullGetSet = 1;
 187 shouldBe("MyObject.nullGetSet", 1);
 188 shouldThrow("MyObject.nullCall()");
 189 shouldThrow("MyObject.hasPropertyLie");
 190
 191 derived = new Derived();
 192
 193 shouldBe("derived instanceof Derived", true);
 194 shouldBe("derived instanceof Base", true);
 195
 196 // base properties and functions return 1 when called/gotten; derived, 2
 197 shouldBe("derived.baseProtoDup()", 2);
 198 shouldBe("derived.baseProto()", 1);
 199 shouldBe("derived.baseDup", 2);
 200 shouldBe("derived.baseOnly", 1);
 201 shouldBe("derived.protoOnly()", 2);
 202 shouldBe("derived.protoDup", 2);
 203 shouldBe("derived.derivedOnly", 2)
 204
 205 shouldBe("derived.baseHardNull()", undefined)
 206
 207 // base properties throw 1 when set; derived, 2
 208 shouldBe("derived.baseDup = 0", 2);
 209 shouldBe("derived.baseOnly = 0", 1);
 210 shouldBe("derived.derivedOnly = 0", 2)
 211 shouldBe("derived.protoDup = 0", 2);
 212
 213 derived2 = new Derived2();
 214
 215 shouldBe("derived2 instanceof Derived2", true);
 216 shouldBe("derived2 instanceof Derived", true);
 217 shouldBe("derived2 instanceof Base", true);
 218
 219 // base properties and functions return 1 when called/gotten; derived, 2
 220 shouldBe("derived2.baseProtoDup()", 2);
 221 shouldBe("derived2.baseProto()", 1);
 222 shouldBe("derived2.baseDup", 2);
 223 shouldBe("derived2.baseOnly", 1);
 224 shouldBe("derived2.protoOnly()", 2);
 225 shouldBe("derived2.protoDup", 2);
 226 shouldBe("derived2.derivedOnly", 2)
 227
 228 // base properties throw 1 when set; derived, 2
 229 shouldBe("derived2.baseDup = 0", 2);
 230 shouldBe("derived2.baseOnly = 0", 1);
 231 shouldBe("derived2.derivedOnly = 0", 2)
 232 shouldBe("derived2.protoDup = 0", 2);
 233
 234 shouldBe('Object.getOwnPropertyDescriptor(derived, "baseProto")', undefined);
 235 shouldBe('Object.getOwnPropertyDescriptor(derived, "baseProtoDup")', undefined);
 236 var baseDupDescriptor = Object.getOwnPropertyDescriptor(derived, "baseDup");
 237 shouldBe('typeof baseDupDescriptor', "object");
 238 shouldBe('baseDupDescriptor.value', derived.baseDup);
 239 shouldBe('baseDupDescriptor.configurable', true);
 240 shouldBe('baseDupDescriptor.enumerable', false);
 241 var baseOnlyDescriptor = Object.getOwnPropertyDescriptor(derived, "baseOnly");
 242 shouldBe('typeof baseOnlyDescriptor', "object");
 243 shouldBe('baseOnlyDescriptor.value', derived.baseOnly);
 244 shouldBe('baseOnlyDescriptor.configurable', true);
 245 shouldBe('baseOnlyDescriptor.enumerable', false);
 246 shouldBe('Object.getOwnPropertyDescriptor(derived, "protoOnly")', undefined);
 247 var protoDupDescriptor = Object.getOwnPropertyDescriptor(derived, "protoDup");
 248 shouldBe('typeof protoDupDescriptor', "object");
 249 shouldBe('protoDupDescriptor.value', derived.protoDup);
 250 shouldBe('protoDupDescriptor.configurable', true);
 251 shouldBe('protoDupDescriptor.enumerable', false);
 252 var derivedOnlyDescriptor = Object.getOwnPropertyDescriptor(derived, "derivedOnly");
 253 shouldBe('typeof derivedOnlyDescriptor', "object");
 254 shouldBe('derivedOnlyDescriptor.value', derived.derivedOnly);
 255 shouldBe('derivedOnlyDescriptor.configurable', true);
 256 shouldBe('derivedOnlyDescriptor.enumerable', false);
 257
 258 shouldBe("undefined instanceof MyObject", false);
 259 EvilExceptionObject.hasInstance = function f() { return f(); };
 260 EvilExceptionObject.__proto__ = undefined;
 261 shouldThrow("undefined instanceof EvilExceptionObject");
 262 EvilExceptionObject.hasInstance = function () { return true; };
 263 shouldBe("undefined instanceof EvilExceptionObject", true);
 264
 265 EvilExceptionObject.toNumber = function f() { return f(); }
 266 shouldThrow("EvilExceptionObject*5");
 267 EvilExceptionObject.toStringExplicit = function f() { return f(); }
 268 shouldThrow("String(EvilExceptionObject)");
 269
 270 shouldBe("console", "[object Console]");
 271 shouldBe("typeof console.log", "function");
 272
 273 shouldBe("EmptyObject", "[object CallbackObject]");
 274
 275 for (var i = 0; i < 6; ++i)
 276     PropertyCatchalls.x = i;
 277 shouldBe("PropertyCatchalls.x", 4);
 278
 279 for (var i = 0; i < 6; ++i)
 280     var x = PropertyCatchalls.x;
 281 shouldBe("x", null);
 282 var make_throw = 'make_throw';
 283 shouldThrow("PropertyCatchalls[make_throw]=1");
 284 make_throw = 0;
 285 shouldThrow("PropertyCatchalls[make_throw]=1");
 286
 287 for (var i = 0; i < 10; ++i) {
 288     for (var p in PropertyCatchalls) {
 289         if (p == "x")
 290             continue;
 291         shouldBe("p", i % 10);
 292         break;
 293     }
 294 }
 295
 296 PropertyCatchalls.__proto__ = { y: 1 };
 297 for (var i = 0; i < 6; ++i)
 298     var y = PropertyCatchalls.y;
 299 shouldBe("y", null);
 300
 301 var o = { __proto__: PropertyCatchalls };
 302 for (var i = 0; i < 6; ++i)
 303     var z = PropertyCatchalls.z;
 304 shouldBe("z", null);
 305
 306 if (failed)
 307     throw "Some tests failed";