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      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