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