test/same.js

   1 module("equiv");
   2
   3
   4 test("Primitive types and constants", function () {
   5     equals(QUnit.equiv(null, null), true, "null");
   6     equals(QUnit.equiv(null, {}), false, "null");
   7     equals(QUnit.equiv(null, undefined), false, "null");
   8     equals(QUnit.equiv(null, 0), false, "null");
   9     equals(QUnit.equiv(null, false), false, "null");
  10     equals(QUnit.equiv(null, ''), false, "null");
  11     equals(QUnit.equiv(null, []), false, "null");
  12
  13     equals(QUnit.equiv(undefined, undefined), true, "undefined");
  14     equals(QUnit.equiv(undefined, null), false, "undefined");
  15     equals(QUnit.equiv(undefined, 0), false, "undefined");
  16     equals(QUnit.equiv(undefined, false), false, "undefined");
  17     equals(QUnit.equiv(undefined, {}), false, "undefined");
  18     equals(QUnit.equiv(undefined, []), false, "undefined");
  19     equals(QUnit.equiv(undefined, ""), false, "undefined");
  20
  21     // Nan usually doest not equal to Nan using the '==' operator.
  22     // Only isNaN() is able to do it.
  23     equals(QUnit.equiv(0/0, 0/0), true, "NaN"); // NaN VS NaN
  24     equals(QUnit.equiv(1/0, 2/0), true, "Infinity"); // Infinity VS Infinity
  25     equals(QUnit.equiv(-1/0, 2/0), false, "-Infinity, Infinity"); // -Infinity VS Infinity
  26     equals(QUnit.equiv(-1/0, -2/0), true, "-Infinity, -Infinity"); // -Infinity VS -Infinity
  27     equals(QUnit.equiv(0/0, 1/0), false, "NaN, Infinity"); // Nan VS Infinity
  28     equals(QUnit.equiv(1/0, 0/0), false, "NaN, Infinity"); // Nan VS Infinity
  29     equals(QUnit.equiv(0/0, null), false, "NaN");
  30     equals(QUnit.equiv(0/0, undefined), false, "NaN");
  31     equals(QUnit.equiv(0/0, 0), false, "NaN");
  32     equals(QUnit.equiv(0/0, false), false, "NaN");
  33     equals(QUnit.equiv(0/0, function () {}), false, "NaN");
  34     equals(QUnit.equiv(1/0, null), false, "NaN, Infinity");
  35     equals(QUnit.equiv(1/0, undefined), false, "NaN, Infinity");
  36     equals(QUnit.equiv(1/0, 0), false, "NaN, Infinity");
  37     equals(QUnit.equiv(1/0, 1), false, "NaN, Infinity");
  38     equals(QUnit.equiv(1/0, false), false, "NaN, Infinity");
  39     equals(QUnit.equiv(1/0, true), false, "NaN, Infinity");
  40     equals(QUnit.equiv(1/0, function () {}), false, "NaN, Infinity");
  41
  42     equals(QUnit.equiv(0, 0), true, "number");
  43     equals(QUnit.equiv(0, 1), false, "number");
  44     equals(QUnit.equiv(1, 0), false, "number");
  45     equals(QUnit.equiv(1, 1), true, "number");
  46     equals(QUnit.equiv(1.1, 1.1), true, "number");
  47     equals(QUnit.equiv(0.0000005, 0.0000005), true, "number");
  48     equals(QUnit.equiv(0, ''), false, "number");
  49     equals(QUnit.equiv(0, '0'), false, "number");
  50     equals(QUnit.equiv(1, '1'), false, "number");
  51     equals(QUnit.equiv(0, false), false, "number");
  52     equals(QUnit.equiv(1, true), false, "number");
  53
  54     equals(QUnit.equiv(true, true), true, "boolean");
  55     equals(QUnit.equiv(true, false), false, "boolean");
  56     equals(QUnit.equiv(false, true), false, "boolean");
  57     equals(QUnit.equiv(false, 0), false, "boolean");
  58     equals(QUnit.equiv(false, null), false, "boolean");
  59     equals(QUnit.equiv(false, undefined), false, "boolean");
  60     equals(QUnit.equiv(true, 1), false, "boolean");
  61     equals(QUnit.equiv(true, null), false, "boolean");
  62     equals(QUnit.equiv(true, undefined), false, "boolean");
  63
  64     equals(QUnit.equiv('', ''), true, "string");
  65     equals(QUnit.equiv('a', 'a'), true, "string");
  66     equals(QUnit.equiv("foobar", "foobar"), true, "string");
  67     equals(QUnit.equiv("foobar", "foo"), false, "string");
  68     equals(QUnit.equiv('', 0), false, "string");
  69     equals(QUnit.equiv('', false), false, "string");
  70     equals(QUnit.equiv('', null), false, "string");
  71     equals(QUnit.equiv('', undefined), false, "string");
  72
  73     // Short annotation VS new annotation
  74     equals(QUnit.equiv(0, new Number()), true, "short annotation VS new annotation");
  75     equals(QUnit.equiv(new Number(), 0), true, "short annotation VS new annotation");
  76     equals(QUnit.equiv(1, new Number(1)), true, "short annotation VS new annotation");
  77     equals(QUnit.equiv(new Number(1), 1), true, "short annotation VS new annotation");
  78     equals(QUnit.equiv(new Number(0), 1), false, "short annotation VS new annotation");
  79     equals(QUnit.equiv(0, new Number(1)), false, "short annotation VS new annotation");
  80
  81     equals(QUnit.equiv(new String(), ""), true, "short annotation VS new annotation");
  82     equals(QUnit.equiv("", new String()), true, "short annotation VS new annotation");
  83     equals(QUnit.equiv(new String("My String"), "My String"), true, "short annotation VS new annotation");
  84     equals(QUnit.equiv("My String", new String("My String")), true, "short annotation VS new annotation");
  85     equals(QUnit.equiv("Bad String", new String("My String")), false, "short annotation VS new annotation");
  86     equals(QUnit.equiv(new String("Bad String"), "My String"), false, "short annotation VS new annotation");
  87
  88     equals(QUnit.equiv(false, new Boolean()), true, "short annotation VS new annotation");
  89     equals(QUnit.equiv(new Boolean(), false), true, "short annotation VS new annotation");
  90     equals(QUnit.equiv(true, new Boolean(true)), true, "short annotation VS new annotation");
  91     equals(QUnit.equiv(new Boolean(true), true), true, "short annotation VS new annotation");
  92     equals(QUnit.equiv(true, new Boolean(1)), true, "short annotation VS new annotation");
  93     equals(QUnit.equiv(false, new Boolean(false)), true, "short annotation VS new annotation");
  94     equals(QUnit.equiv(new Boolean(false), false), true, "short annotation VS new annotation");
  95     equals(QUnit.equiv(false, new Boolean(0)), true, "short annotation VS new annotation");
  96     equals(QUnit.equiv(true, new Boolean(false)), false, "short annotation VS new annotation");
  97     equals(QUnit.equiv(new Boolean(false), true), false, "short annotation VS new annotation");
  98
  99     equals(QUnit.equiv(new Object(), {}), true, "short annotation VS new annotation");
 100     equals(QUnit.equiv({}, new Object()), true, "short annotation VS new annotation");
 101     equals(QUnit.equiv(new Object(), {a:1}), false, "short annotation VS new annotation");
 102     equals(QUnit.equiv({a:1}, new Object()), false, "short annotation VS new annotation");
 103     equals(QUnit.equiv({a:undefined}, new Object()), false, "short annotation VS new annotation");
 104     equals(QUnit.equiv(new Object(), {a:undefined}), false, "short annotation VS new annotation");
 105 });
 106
 107 test("Objects Basics.", function() {
 108     equals(QUnit.equiv({}, {}), true);
 109     equals(QUnit.equiv({}, null), false);
 110     equals(QUnit.equiv({}, undefined), false);
 111     equals(QUnit.equiv({}, 0), false);
 112     equals(QUnit.equiv({}, false), false);
 113
 114     // This test is a hard one, it is very important
 115     // REASONS:
 116     //      1) They are of the same type "object"
 117     //      2) [] instanceof Object is true
 118     //      3) Their properties are the same (doesn't exists)
 119     equals(QUnit.equiv({}, []), false);
 120
 121     equals(QUnit.equiv({a:1}, {a:1}), true);
 122     equals(QUnit.equiv({a:1}, {a:"1"}), false);
 123     equals(QUnit.equiv({a:[]}, {a:[]}), true);
 124     equals(QUnit.equiv({a:{}}, {a:null}), false);
 125     equals(QUnit.equiv({a:1}, {}), false);
 126     equals(QUnit.equiv({}, {a:1}), false);
 127
 128     // Hard ones
 129     equals(QUnit.equiv({a:undefined}, {}), false);
 130     equals(QUnit.equiv({}, {a:undefined}), false);
 131     equals(QUnit.equiv(
 132         {
 133             a: [{ bar: undefined }]
 134         },
 135         {
 136             a: [{ bat: undefined }]
 137         }
 138     ), false);
 139 });
 140
 141
 142 test("Arrays Basics.", function() {
 143
 144     equals(QUnit.equiv([], []), true);
 145
 146     // May be a hard one, can invoke a crash at execution.
 147     // because their types are both "object" but null isn't
 148     // like a true object, it doesn't have any property at all.
 149     equals(QUnit.equiv([], null), false);
 150
 151     equals(QUnit.equiv([], undefined), false);
 152     equals(QUnit.equiv([], false), false);
 153     equals(QUnit.equiv([], 0), false);
 154     equals(QUnit.equiv([], ""), false);
 155
 156     // May be a hard one, but less hard
 157     // than {} with [] (note the order)
 158     equals(QUnit.equiv([], {}), false);
 159
 160     equals(QUnit.equiv([null],[]), false);
 161     equals(QUnit.equiv([undefined],[]), false);
 162     equals(QUnit.equiv([],[null]), false);
 163     equals(QUnit.equiv([],[undefined]), false);
 164     equals(QUnit.equiv([null],[undefined]), false);
 165     equals(QUnit.equiv([[]],[[]]), true);
 166     equals(QUnit.equiv([[],[],[]],[[],[],[]]), true);
 167     equals(QUnit.equiv(
 168                             [[],[],[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]],
 169                             [[],[],[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]),
 170                             true);
 171     equals(QUnit.equiv(
 172                             [[],[],[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]],
 173                             [[],[],[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]), // shorter
 174                             false);
 175     equals(QUnit.equiv(
 176                             [[],[],[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[{}]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]],
 177                             [[],[],[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]), // deepest element not an array
 178                             false);
 179
 180     // same multidimensional
 181     equals(QUnit.equiv(
 182                             [1,2,3,4,5,6,7,8,9, [
 183                                 1,2,3,4,5,6,7,8,9, [
 184                                     1,2,3,4,5,[
 185                                         [6,7,8,9, [
 186                                             [
 187                                                 1,2,3,4,[
 188                                                     2,3,4,[
 189                                                         1,2,[
 190                                                             1,2,3,4,[
 191                                                                 1,2,3,4,5,6,7,8,9,[
 192                                                                     0
 193                                                                 ],1,2,3,4,5,6,7,8,9
 194                                                             ],5,6,7,8,9
 195                                                         ],4,5,6,7,8,9
 196                                                     ],5,6,7,8,9
 197                                                 ],5,6,7
 198                                             ]
 199                                         ]
 200                                     ]
 201                                 ]
 202                             ]]],
 203                             [1,2,3,4,5,6,7,8,9, [
 204                                 1,2,3,4,5,6,7,8,9, [
 205                                     1,2,3,4,5,[
 206                                         [6,7,8,9, [
 207                                             [
 208                                                 1,2,3,4,[
 209                                                     2,3,4,[
 210                                                         1,2,[
 211                                                             1,2,3,4,[
 212                                                                 1,2,3,4,5,6,7,8,9,[
 213                                                                     0
 214                                                                 ],1,2,3,4,5,6,7,8,9
 215                                                             ],5,6,7,8,9
 216                                                         ],4,5,6,7,8,9
 217                                                     ],5,6,7,8,9
 218                                                 ],5,6,7
 219                                             ]
 220                                         ]
 221                                     ]
 222                                 ]
 223                             ]]]),
 224                             true, "Multidimensional");
 225
 226     // different multidimensional
 227     equals(QUnit.equiv(
 228                             [1,2,3,4,5,6,7,8,9, [
 229                                 1,2,3,4,5,6,7,8,9, [
 230                                     1,2,3,4,5,[
 231                                         [6,7,8,9, [
 232                                             [
 233                                                 1,2,3,4,[
 234                                                     2,3,4,[
 235                                                         1,2,[
 236                                                             1,2,3,4,[
 237                                                                 1,2,3,4,5,6,7,8,9,[
 238                                                                     0
 239                                                                 ],1,2,3,4,5,6,7,8,9
 240                                                             ],5,6,7,8,9
 241                                                         ],4,5,6,7,8,9
 242                                                     ],5,6,7,8,9
 243                                                 ],5,6,7
 244                                             ]
 245                                         ]
 246                                     ]
 247                                 ]
 248                             ]]],
 249                             [1,2,3,4,5,6,7,8,9, [
 250                                 1,2,3,4,5,6,7,8,9, [
 251                                     1,2,3,4,5,[
 252                                         [6,7,8,9, [
 253                                             [
 254                                                 1,2,3,4,[
 255                                                     2,3,4,[
 256                                                         1,2,[
 257                                                             '1',2,3,4,[                 // string instead of number
 258                                                                 1,2,3,4,5,6,7,8,9,[
 259                                                                     0
 260                                                                 ],1,2,3,4,5,6,7,8,9
 261                                                             ],5,6,7,8,9
 262                                                         ],4,5,6,7,8,9
 263                                                     ],5,6,7,8,9
 264                                                 ],5,6,7
 265                                             ]
 266                                         ]
 267                                     ]
 268                                 ]
 269                             ]]]),
 270                             false, "Multidimensional");
 271
 272     // different multidimensional
 273     equals(QUnit.equiv(
 274                             [1,2,3,4,5,6,7,8,9, [
 275                                 1,2,3,4,5,6,7,8,9, [
 276                                     1,2,3,4,5,[
 277                                         [6,7,8,9, [
 278                                             [
 279                                                 1,2,3,4,[
 280                                                     2,3,4,[
 281                                                         1,2,[
 282                                                             1,2,3,4,[
 283                                                                 1,2,3,4,5,6,7,8,9,[
 284                                                                     0
 285                                                                 ],1,2,3,4,5,6,7,8,9
 286                                                             ],5,6,7,8,9
 287                                                         ],4,5,6,7,8,9
 288                                                     ],5,6,7,8,9
 289                                                 ],5,6,7
 290                                             ]
 291                                         ]
 292                                     ]
 293                                 ]
 294                             ]]],
 295                             [1,2,3,4,5,6,7,8,9, [
 296                                 1,2,3,4,5,6,7,8,9, [
 297                                     1,2,3,4,5,[
 298                                         [6,7,8,9, [
 299                                             [
 300                                                 1,2,3,4,[
 301                                                     2,3,[                   // missing an element (4)
 302                                                         1,2,[
 303                                                             1,2,3,4,[
 304                                                                 1,2,3,4,5,6,7,8,9,[
 305                                                                     0
 306                                                                 ],1,2,3,4,5,6,7,8,9
 307                                                             ],5,6,7,8,9
 308                                                         ],4,5,6,7,8,9
 309                                                     ],5,6,7,8,9
 310                                                 ],5,6,7
 311                                             ]
 312                                         ]
 313                                     ]
 314                                 ]
 315                             ]]]),
 316                             false, "Multidimensional");
 317 });
 318
 319 test("Functions.", function() {
 320     var f0 = function () {};
 321     var f1 = function () {};
 322
 323     // f2 and f3 have the same code, formatted differently
 324     var f2 = function () {var i = 0;};
 325     var f3 = function () {
 326         var i = 0 // this comment and no semicoma as difference
 327     };
 328
 329     equals(QUnit.equiv(function() {}, function() {}), false, "Anonymous functions"); // exact source code
 330     equals(QUnit.equiv(function() {}, function() {return true;}), false, "Anonymous functions");
 331
 332     equals(QUnit.equiv(f0, f0), true, "Function references"); // same references
 333     equals(QUnit.equiv(f0, f1), false, "Function references"); // exact source code, different references
 334     equals(QUnit.equiv(f2, f3), false, "Function references"); // equivalent source code, different references
 335     equals(QUnit.equiv(f1, f2), false, "Function references"); // different source code, different references
 336     equals(QUnit.equiv(function() {}, true), false);
 337     equals(QUnit.equiv(function() {}, undefined), false);
 338     equals(QUnit.equiv(function() {}, null), false);
 339     equals(QUnit.equiv(function() {}, {}), false);
 340 });
 341
 342
 343 test("Date instances.", function() {
 344     // Date, we don't need to test Date.parse() because it returns a number.
 345     // Only test the Date instances by setting them a fix date.
 346     // The date use is midnight January 1, 1970
 347
 348     var d1 = new Date();
 349     d1.setTime(0); // fix the date
 350
 351     var d2 = new Date();
 352     d2.setTime(0); // fix the date
 353
 354     var d3 = new Date(); // The very now
 355
 356     // Anyway their types differs, just in case the code fails in the order in which it deals with date
 357     equals(QUnit.equiv(d1, 0), false); // d1.valueOf() returns 0, but d1 and 0 are different
 358     // test same values date and different instances equality
 359     equals(QUnit.equiv(d1, d2), true);
 360     // test different date and different instances difference
 361     equals(QUnit.equiv(d1, d3), false);
 362 });
 363
 364
 365 test("RegExp.", function() {
 366     // Must test cases that imply those traps:
 367     // var a = /./;
 368     // a instanceof Object;        // Oops
 369     // a instanceof RegExp;        // Oops
 370     // typeof a === "function";    // Oops, false in IE and Opera, true in FF and Safari ("object")
 371
 372     // Tests same regex with same modifiers in different order
 373     var r = /foo/;
 374     var r5 = /foo/gim;
 375     var r6 = /foo/gmi;
 376     var r7 = /foo/igm;
 377     var r8 = /foo/img;
 378     var r9 = /foo/mig;
 379     var r10 = /foo/mgi;
 380     var ri1 = /foo/i;
 381     var ri2 = /foo/i;
 382     var rm1 = /foo/m;
 383     var rm2 = /foo/m;
 384     var rg1 = /foo/g;
 385     var rg2 = /foo/g;
 386
 387     equals(QUnit.equiv(r5, r6), true, "Modifier order");
 388     equals(QUnit.equiv(r5, r7), true, "Modifier order");
 389     equals(QUnit.equiv(r5, r8), true, "Modifier order");
 390     equals(QUnit.equiv(r5, r9), true, "Modifier order");
 391     equals(QUnit.equiv(r5, r10), true, "Modifier order");
 392     equals(QUnit.equiv(r, r5), false, "Modifier");
 393
 394     equals(QUnit.equiv(ri1, ri2), true, "Modifier");
 395     equals(QUnit.equiv(r, ri1), false, "Modifier");
 396     equals(QUnit.equiv(ri1, rm1), false, "Modifier");
 397     equals(QUnit.equiv(r, rm1), false, "Modifier");
 398     equals(QUnit.equiv(rm1, ri1), false, "Modifier");
 399     equals(QUnit.equiv(rm1, rm2), true, "Modifier");
 400     equals(QUnit.equiv(rg1, rm1), false, "Modifier");
 401     equals(QUnit.equiv(rm1, rg1), false, "Modifier");
 402     equals(QUnit.equiv(rg1, rg2), true, "Modifier");
 403
 404     // Different regex, same modifiers
 405     var r11 = /[a-z]/gi;
 406     var r13 = /[0-9]/gi; // oops! different
 407     equals(QUnit.equiv(r11, r13), false, "Regex pattern");
 408
 409     var r14 = /0/ig;
 410     var r15 = /"0"/ig; // oops! different
 411     equals(QUnit.equiv(r14, r15), false, "Regex pattern");
 412
 413     var r1 = /[\n\r\u2028\u2029]/g;
 414     var r2 = /[\n\r\u2028\u2029]/g;
 415     var r3 = /[\n\r\u2028\u2028]/g; // differs from r1
 416     var r4 = /[\n\r\u2028\u2029]/;  // differs from r1
 417
 418     equals(QUnit.equiv(r1, r2), true, "Regex pattern");
 419     equals(QUnit.equiv(r1, r3), false, "Regex pattern");
 420     equals(QUnit.equiv(r1, r4), false, "Regex pattern");
 421
 422     // More complex regex
 423     var regex1 = "^[-_.a-z0-9]+@([-_a-z0-9]+\\.)+([A-Za-z][A-Za-z]|[A-Za-z][A-Za-z][A-Za-z])|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$";
 424     var regex2 = "^[-_.a-z0-9]+@([-_a-z0-9]+\\.)+([A-Za-z][A-Za-z]|[A-Za-z][A-Za-z][A-Za-z])|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$";
 425     // regex 3 is different: '.' not escaped
 426     var regex3 = "^[-_.a-z0-9]+@([-_a-z0-9]+.)+([A-Za-z][A-Za-z]|[A-Za-z][A-Za-z][A-Za-z])|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$";
 427
 428     var r21 = new RegExp(regex1);
 429     var r22 = new RegExp(regex2);
 430     var r23 = new RegExp(regex3); // diff from r21, not same pattern
 431     var r23a = new RegExp(regex3, "gi"); // diff from r23, not same modifier
 432     var r24a = new RegExp(regex3, "ig"); // same as r23a
 433
 434     equals(QUnit.equiv(r21, r22), true, "Complex Regex");
 435     equals(QUnit.equiv(r21, r23), false, "Complex Regex");
 436     equals(QUnit.equiv(r23, r23a), false, "Complex Regex");
 437     equals(QUnit.equiv(r23a, r24a), true, "Complex Regex");
 438
 439     // typeof r1 is "function" in some browsers and "object" in others so we must cover this test
 440     var re = / /;
 441     equals(QUnit.equiv(re, function () {}), false, "Regex internal");
 442     equals(QUnit.equiv(re, {}), false, "Regex internal");
 443 });
 444
 445
 446 test("Complex Objects.", function() {
 447
 448     function fn1() {
 449         return "fn1";
 450     }
 451     function fn2() {
 452         return "fn2";
 453     }
 454
 455     // Try to invert the order of some properties to make sure it is covered.
 456     // It can failed when properties are compared between unsorted arrays.
 457     equals(QUnit.equiv(
 458         {
 459             a: 1,
 460             b: null,
 461             c: [{}],
 462             d: {
 463                 a: 3.14159,
 464                 b: false,
 465                 c: {
 466                     e: fn1,
 467                     f: [[[]]],
 468                     g: {
 469                         j: {
 470                             k: {
 471                                 n: {
 472                                     r: "r",
 473                                     s: [1,2,3],
 474                                     t: undefined,
 475                                     u: 0,
 476                                     v: {
 477                                         w: {
 478                                             x: {
 479                                                 y: "Yahoo!",
 480                                                 z: null
 481                                             }
 482                                         }
 483                                     }
 484                                 },
 485                                 q: [],
 486                                 p: 1/0,
 487                                 o: 99
 488                             },
 489                             l: undefined,
 490                             m: null
 491                         }
 492                     },
 493                     d: 0,
 494                     i: true,
 495                     h: "false"
 496                 }
 497             },
 498             e: undefined,
 499             g: "",
 500             h: "h",
 501             f: {},
 502             i: []
 503         },
 504         {
 505             a: 1,
 506             b: null,
 507             c: [{}],
 508             d: {
 509                 b: false,
 510                 a: 3.14159,
 511                 c: {
 512                     d: 0,
 513                     e: fn1,
 514                     f: [[[]]],
 515                     g: {
 516                         j: {
 517                             k: {
 518                                 n: {
 519                                     r: "r",
 520                                     t: undefined,
 521                                     u: 0,
 522                                     s: [1,2,3],
 523                                     v: {
 524                                         w: {
 525                                             x: {
 526                                                 z: null,
 527                                                 y: "Yahoo!"
 528                                             }
 529                                         }
 530                                     }
 531                                 },
 532                                 o: 99,
 533                                 p: 1/0,
 534                                 q: []
 535                             },
 536                             l: undefined,
 537                             m: null
 538                         }
 539                     },
 540                     i: true,
 541                     h: "false"
 542                 }
 543             },
 544             e: undefined,
 545             g: "",
 546             f: {},
 547             h: "h",
 548             i: []
 549         }
 550     ), true);
 551
 552     equals(QUnit.equiv(
 553         {
 554             a: 1,
 555             b: null,
 556             c: [{}],
 557             d: {
 558                 a: 3.14159,
 559                 b: false,
 560                 c: {
 561                     d: 0,
 562                     e: fn1,
 563                     f: [[[]]],
 564                     g: {
 565                         j: {
 566                             k: {
 567                                 n: {
 568                                     //r: "r",   // different: missing a property
 569                                     s: [1,2,3],
 570                                     t: undefined,
 571                                     u: 0,
 572                                     v: {
 573                                         w: {
 574                                             x: {
 575                                                 y: "Yahoo!",
 576                                                 z: null
 577                                             }
 578                                         }
 579                                     }
 580                                 },
 581                                 o: 99,
 582                                 p: 1/0,
 583                                 q: []
 584                             },
 585                             l: undefined,
 586                             m: null
 587                         }
 588                     },
 589                     h: "false",
 590                     i: true
 591                 }
 592             },
 593             e: undefined,
 594             f: {},
 595             g: "",
 596             h: "h",
 597             i: []
 598         },
 599         {
 600             a: 1,
 601             b: null,
 602             c: [{}],
 603             d: {
 604                 a: 3.14159,
 605                 b: false,
 606                 c: {
 607                     d: 0,
 608                     e: fn1,
 609                     f: [[[]]],
 610                     g: {
 611                         j: {
 612                             k: {
 613                                 n: {
 614                                     r: "r",
 615                                     s: [1,2,3],
 616                                     t: undefined,
 617                                     u: 0,
 618                                     v: {
 619                                         w: {
 620                                             x: {
 621                                                 y: "Yahoo!",
 622                                                 z: null
 623                                             }
 624                                         }
 625                                     }
 626                                 },
 627                                 o: 99,
 628                                 p: 1/0,
 629                                 q: []
 630                             },
 631                             l: undefined,
 632                             m: null
 633                         }
 634                     },
 635                     h: "false",
 636                     i: true
 637                 }
 638             },
 639             e: undefined,
 640             f: {},
 641             g: "",
 642             h: "h",
 643             i: []
 644         }
 645     ), false);
 646
 647     equals(QUnit.equiv(
 648         {
 649             a: 1,
 650             b: null,
 651             c: [{}],
 652             d: {
 653                 a: 3.14159,
 654                 b: false,
 655                 c: {
 656                     d: 0,
 657                     e: fn1,
 658                     f: [[[]]],
 659                     g: {
 660                         j: {
 661                             k: {
 662                                 n: {
 663                                     r: "r",
 664                                     s: [1,2,3],
 665                                     t: undefined,
 666                                     u: 0,
 667                                     v: {
 668                                         w: {
 669                                             x: {
 670                                                 y: "Yahoo!",
 671                                                 z: null
 672                                             }
 673                                         }
 674                                     }
 675                                 },
 676                                 o: 99,
 677                                 p: 1/0,
 678                                 q: []
 679                             },
 680                             l: undefined,
 681                             m: null
 682                         }
 683                     },
 684                     h: "false",
 685                     i: true
 686                 }
 687             },
 688             e: undefined,
 689             f: {},
 690             g: "",
 691             h: "h",
 692             i: []
 693         },
 694         {
 695             a: 1,
 696             b: null,
 697             c: [{}],
 698             d: {
 699                 a: 3.14159,
 700                 b: false,
 701                 c: {
 702                     d: 0,
 703                     e: fn1,
 704                     f: [[[]]],
 705                     g: {
 706                         j: {
 707                             k: {
 708                                 n: {
 709                                     r: "r",
 710                                     s: [1,2,3],
 711                                     //t: undefined,                 // different: missing a property with an undefined value
 712                                     u: 0,
 713                                     v: {
 714                                         w: {
 715                                             x: {
 716                                                 y: "Yahoo!",
 717                                                 z: null
 718                                             }
 719                                         }
 720                                     }
 721                                 },
 722                                 o: 99,
 723                                 p: 1/0,
 724                                 q: []
 725                             },
 726                             l: undefined,
 727                             m: null
 728                         }
 729                     },
 730                     h: "false",
 731                     i: true
 732                 }
 733             },
 734             e: undefined,
 735             f: {},
 736             g: "",
 737             h: "h",
 738             i: []
 739         }
 740     ), false);
 741
 742     equals(QUnit.equiv(
 743         {
 744             a: 1,
 745             b: null,
 746             c: [{}],
 747             d: {
 748                 a: 3.14159,
 749                 b: false,
 750                 c: {
 751                     d: 0,
 752                     e: fn1,
 753                     f: [[[]]],
 754                     g: {
 755                         j: {
 756                             k: {
 757                                 n: {
 758                                     r: "r",
 759                                     s: [1,2,3],
 760                                     t: undefined,
 761                                     u: 0,
 762                                     v: {
 763                                         w: {
 764                                             x: {
 765                                                 y: "Yahoo!",
 766                                                 z: null
 767                                             }
 768                                         }
 769                                     }
 770                                 },
 771                                 o: 99,
 772                                 p: 1/0,
 773                                 q: []
 774                             },
 775                             l: undefined,
 776                             m: null
 777                         }
 778                     },
 779                     h: "false",
 780                     i: true
 781                 }
 782             },
 783             e: undefined,
 784             f: {},
 785             g: "",
 786             h: "h",
 787             i: []
 788         },
 789         {
 790             a: 1,
 791             b: null,
 792             c: [{}],
 793             d: {
 794                 a: 3.14159,
 795                 b: false,
 796                 c: {
 797                     d: 0,
 798                     e: fn1,
 799                     f: [[[]]],
 800                     g: {
 801                         j: {
 802                             k: {
 803                                 n: {
 804                                     r: "r",
 805                                     s: [1,2,3],
 806                                     t: undefined,
 807                                     u: 0,
 808                                     v: {
 809                                         w: {
 810                                             x: {
 811                                                 y: "Yahoo!",
 812                                                 z: null
 813                                             }
 814                                         }
 815                                     }
 816                                 },
 817                                 o: 99,
 818                                 p: 1/0,
 819                                 q: {}           // different was []
 820                             },
 821                             l: undefined,
 822                             m: null
 823                         }
 824                     },
 825                     h: "false",
 826                     i: true
 827                 }
 828             },
 829             e: undefined,
 830             f: {},
 831             g: "",
 832             h: "h",
 833             i: []
 834         }
 835     ), false);
 836
 837     var same1 = {
 838         a: [
 839             "string", null, 0, "1", 1, {
 840                 prop: null,
 841                 foo: [1,2,null,{}, [], [1,2,3]],
 842                 bar: undefined
 843             }, 3, "Hey!", "Κάνε πάντα γνωρίζουμε ας των, μηχανής επιδιόρθωσης επιδιορθώσεις ώς μια. Κλπ ας"
 844         ],
 845         unicode: "老 汉语中存在 港澳和海外的华人圈中 贵州 我去了书店 现在尚有争",
 846         b: "b",
 847         c: fn1
 848     };
 849
 850     var same2 = {
 851         a: [
 852             "string", null, 0, "1", 1, {
 853                 prop: null,
 854                 foo: [1,2,null,{}, [], [1,2,3]],
 855                 bar: undefined
 856             }, 3, "Hey!", "Κάνε πάντα γνωρίζουμε ας των, μηχανής επιδιόρθωσης επιδιορθώσεις ώς μια. Κλπ ας"
 857         ],
 858         unicode: "老 汉语中存在 港澳和海外的华人圈中 贵州 我去了书店 现在尚有争",
 859         b: "b",
 860         c: fn1
 861     };
 862
 863     var diff1 = {
 864         a: [
 865             "string", null, 0, "1", 1, {
 866                 prop: null,
 867                 foo: [1,2,null,{}, [], [1,2,3,4]], // different: 4 was add to the array
 868                 bar: undefined
 869             }, 3, "Hey!", "Κάνε πάντα γνωρίζουμε ας των, μηχανής επιδιόρθωσης επιδιορθώσεις ώς μια. Κλπ ας"
 870         ],
 871         unicode: "老 汉语中存在 港澳和海外的华人圈中 贵州 我去了书店 现在尚有争",
 872         b: "b",
 873         c: fn1
 874     };
 875
 876     var diff2 = {
 877         a: [
 878             "string", null, 0, "1", 1, {
 879                 prop: null,
 880                 foo: [1,2,null,{}, [], [1,2,3]],
 881                 newprop: undefined, // different: newprop was added
 882                 bar: undefined
 883             }, 3, "Hey!", "Κάνε πάντα γνωρίζουμε ας των, μηχανής επιδιόρθωσης επιδιορθώσεις ώς μια. Κλπ ας"
 884         ],
 885         unicode: "老 汉语中存在 港澳和海外的华人圈中 贵州 我去了书店 现在尚有争",
 886         b: "b",
 887         c: fn1
 888     };
 889
 890     var diff3 = {
 891         a: [
 892             "string", null, 0, "1", 1, {
 893                 prop: null,
 894                 foo: [1,2,null,{}, [], [1,2,3]],
 895                 bar: undefined
 896             }, 3, "Hey!", "Κάνε πάντα γνωρίζουμε ας των, μηχανής επιδιόρθωσης επιδιορθώσεις ώς μια. Κλπ α" // different: missing last char
 897         ],
 898         unicode: "老 汉语中存在 港澳和海外的华人圈中 贵州 我去了书店 现在尚有争",
 899         b: "b",
 900         c: fn1
 901     };
 902
 903     var diff4 = {
 904         a: [
 905             "string", null, 0, "1", 1, {
 906                 prop: null,
 907                 foo: [1,2,undefined,{}, [], [1,2,3]], // different: undefined instead of null
 908                 bar: undefined
 909             }, 3, "Hey!", "Κάνε πάντα γνωρίζουμε ας των, μηχανής επιδιόρθωσης επιδιορθώσεις ώς μια. Κλπ ας"
 910         ],
 911         unicode: "老 汉语中存在 港澳和海外的华人圈中 贵州 我去了书店 现在尚有争",
 912         b: "b",
 913         c: fn1
 914     };
 915
 916     var diff5 = {
 917         a: [
 918             "string", null, 0, "1", 1, {
 919                 prop: null,
 920                 foo: [1,2,null,{}, [], [1,2,3]],
 921                 bat: undefined // different: property name not "bar"
 922             }, 3, "Hey!", "Κάνε πάντα γνωρίζουμε ας των, μηχανής επιδιόρθωσης επιδιορθώσεις ώς μια. Κλπ ας"
 923         ],
 924         unicode: "老 汉语中存在 港澳和海外的华人圈中 贵州 我去了书店 现在尚有争",
 925         b: "b",
 926         c: fn1
 927     };
 928
 929     equals(QUnit.equiv(same1, same2), true);
 930     equals(QUnit.equiv(same2, same1), true);
 931     equals(QUnit.equiv(same2, diff1), false);
 932     equals(QUnit.equiv(diff1, same2), false);
 933
 934     equals(QUnit.equiv(same1, diff1), false);
 935     equals(QUnit.equiv(same1, diff2), false);
 936     equals(QUnit.equiv(same1, diff3), false);
 937     equals(QUnit.equiv(same1, diff3), false);
 938     equals(QUnit.equiv(same1, diff4), false);
 939     equals(QUnit.equiv(same1, diff5), false);
 940     equals(QUnit.equiv(diff5, diff1), false);
 941 });
 942
 943
 944 test("Complex Arrays.", function() {
 945
 946     function fn() {
 947     }
 948
 949     equals(QUnit.equiv(
 950                 [1, 2, 3, true, {}, null, [
 951                     {
 952                         a: ["", '1', 0]
 953                     },
 954                     5, 6, 7
 955                 ], "foo"],
 956                 [1, 2, 3, true, {}, null, [
 957                     {
 958                         a: ["", '1', 0]
 959                     },
 960                     5, 6, 7
 961                 ], "foo"]),
 962             true);
 963
 964     equals(QUnit.equiv(
 965                 [1, 2, 3, true, {}, null, [
 966                     {
 967                         a: ["", '1', 0]
 968                     },
 969                     5, 6, 7
 970                 ], "foo"],
 971                 [1, 2, 3, true, {}, null, [
 972                     {
 973                         b: ["", '1', 0]         // not same property name
 974                     },
 975                     5, 6, 7
 976                 ], "foo"]),
 977             false);
 978
 979     var a = [{
 980         b: fn,
 981         c: false,
 982         "do": "reserved word",
 983         "for": {
 984             ar: [3,5,9,"hey!", [], {
 985                 ar: [1,[
 986                     3,4,6,9, null, [], []
 987                 ]],
 988                 e: fn,
 989                 f: undefined
 990             }]
 991         },
 992         e: 0.43445
 993     }, 5, "string", 0, fn, false, null, undefined, 0, [
 994         4,5,6,7,8,9,11,22,33,44,55,"66", null, [], [[[[[3]]]], "3"], {}, 1/0
 995     ], [], [[[], "foo", null, {
 996         n: 1/0,
 997         z: {
 998             a: [3,4,5,6,"yep!", undefined, undefined],
 999             b: {}
1000         }
1001     }, {}]]];
1002
1003     equals(QUnit.equiv(a,
1004             [{
1005                 b: fn,
1006                 c: false,
1007                 "do": "reserved word",
1008                 "for": {
1009                     ar: [3,5,9,"hey!", [], {
1010                         ar: [1,[
1011                             3,4,6,9, null, [], []
1012                         ]],
1013                         e: fn,
1014                         f: undefined
1015                     }]
1016                 },
1017                 e: 0.43445
1018             }, 5, "string", 0, fn, false, null, undefined, 0, [
1019                 4,5,6,7,8,9,11,22,33,44,55,"66", null, [], [[[[[3]]]], "3"], {}, 1/0
1020             ], [], [[[], "foo", null, {
1021                 n: 1/0,
1022                 z: {
1023                     a: [3,4,5,6,"yep!", undefined, undefined],
1024                     b: {}
1025                 }
1026             }, {}]]]), true);
1027
1028     equals(QUnit.equiv(a,
1029             [{
1030                 b: fn,
1031                 c: false,
1032                 "do": "reserved word",
1033                 "for": {
1034                     ar: [3,5,9,"hey!", [], {
1035                         ar: [1,[
1036                             3,4,6,9, null, [], []
1037                         ]],
1038                         e: fn,
1039                         f: undefined
1040                     }]
1041                 },
1042                 e: 0.43445
1043             }, 5, "string", 0, fn, false, null, undefined, 0, [
1044                 4,5,6,7,8,9,11,22,33,44,55,"66", null, [], [[[[[2]]]], "3"], {}, 1/0    // different: [[[[[2]]]]] instead of [[[[[3]]]]]
1045             ], [], [[[], "foo", null, {
1046                 n: 1/0,
1047                 z: {
1048                     a: [3,4,5,6,"yep!", undefined, undefined],
1049                     b: {}
1050                 }
1051             }, {}]]]), false);
1052
1053     equals(QUnit.equiv(a,
1054             [{
1055                 b: fn,
1056                 c: false,
1057                 "do": "reserved word",
1058                 "for": {
1059                     ar: [3,5,9,"hey!", [], {
1060                         ar: [1,[
1061                             3,4,6,9, null, [], []
1062                         ]],
1063                         e: fn,
1064                         f: undefined
1065                     }]
1066                 },
1067                 e: 0.43445
1068             }, 5, "string", 0, fn, false, null, undefined, 0, [
1069                 4,5,6,7,8,9,11,22,33,44,55,"66", null, [], [[[[[3]]]], "3"], {}, 1/0
1070             ], [], [[[], "foo", null, {
1071                 n: -1/0,                                                                // different, -Infinity instead of Infinity
1072                 z: {
1073                     a: [3,4,5,6,"yep!", undefined, undefined],
1074                     b: {}
1075                 }
1076             }, {}]]]), false);
1077
1078     equals(QUnit.equiv(a,
1079             [{
1080                 b: fn,
1081                 c: false,
1082                 "do": "reserved word",
1083                 "for": {
1084                     ar: [3,5,9,"hey!", [], {
1085                         ar: [1,[
1086                             3,4,6,9, null, [], []
1087                         ]],
1088                         e: fn,
1089                         f: undefined
1090                     }]
1091                 },
1092                 e: 0.43445
1093             }, 5, "string", 0, fn, false, null, undefined, 0, [
1094                 4,5,6,7,8,9,11,22,33,44,55,"66", null, [], [[[[[3]]]], "3"], {}, 1/0
1095             ], [], [[[], "foo", {                                                       // different: null is missing
1096                 n: 1/0,
1097                 z: {
1098                     a: [3,4,5,6,"yep!", undefined, undefined],
1099                     b: {}
1100                 }
1101             }, {}]]]), false);
1102
1103     equals(QUnit.equiv(a,
1104             [{
1105                 b: fn,
1106                 c: false,
1107                 "do": "reserved word",
1108                 "for": {
1109                     ar: [3,5,9,"hey!", [], {
1110                         ar: [1,[
1111                             3,4,6,9, null, [], []
1112                         ]],
1113                         e: fn
1114                                                                                 // different: missing property f: undefined
1115                     }]
1116                 },
1117                 e: 0.43445
1118             }, 5, "string", 0, fn, false, null, undefined, 0, [
1119                 4,5,6,7,8,9,11,22,33,44,55,"66", null, [], [[[[[3]]]], "3"], {}, 1/0
1120             ], [], [[[], "foo", null, {
1121                 n: 1/0,
1122                 z: {
1123                     a: [3,4,5,6,"yep!", undefined, undefined],
1124                     b: {}
1125                 }
1126             }, {}]]]), false);
1127 });
1128
1129
1130 test("Prototypal inheritance", function() {
1131     function Gizmo(id) {
1132         this.id = id;
1133     }
1134
1135     function Hoozit(id) {
1136         this.id = id;
1137     }
1138     Hoozit.prototype = new Gizmo();
1139
1140     var gizmo = new Gizmo("ok");
1141     var hoozit = new Hoozit("ok");
1142
1143     // Try this test many times after test on instances that hold function
1144     // to make sure that our code does not mess with last object constructor memoization.
1145     equals(QUnit.equiv(function () {}, function () {}), false);
1146
1147     // Hoozit inherit from Gizmo
1148     // hoozit instanceof Hoozit; // true
1149     // hoozit instanceof Gizmo; // true
1150     equals(QUnit.equiv(hoozit, gizmo), true);
1151
1152     Gizmo.prototype.bar = true; // not a function just in case we skip them
1153
1154     // Hoozit inherit from Gizmo
1155     // They are equivalent
1156     equals(QUnit.equiv(hoozit, gizmo), true);
1157
1158     // Make sure this is still true !important
1159     // The reason for this is that I forgot to reset the last
1160     // caller to where it were called from.
1161     equals(QUnit.equiv(function () {}, function () {}), false);
1162
1163     // Make sure this is still true !important
1164     equals(QUnit.equiv(hoozit, gizmo), true);
1165
1166     Hoozit.prototype.foo = true; // not a function just in case we skip them
1167
1168     // Gizmo does not inherit from Hoozit
1169     // gizmo instanceof Gizmo; // true
1170     // gizmo instanceof Hoozit; // false
1171     // They are not equivalent
1172     equals(QUnit.equiv(hoozit, gizmo), false);
1173
1174     // Make sure this is still true !important
1175     equals(QUnit.equiv(function () {}, function () {}), false);
1176 });
1177
1178
1179 test("Instances", function() {
1180     function A() {}
1181     var a1 = new A();
1182     var a2 = new A();
1183
1184     function B() {
1185         this.fn = function () {};
1186     }
1187     var b1 = new B();
1188     var b2 = new B();
1189
1190     equals(QUnit.equiv(a1, a2), true, "Same property, same constructor");
1191
1192     // b1.fn and b2.fn are functions but they are different references
1193     // But we decided to skip function for instances.
1194     equals(QUnit.equiv(b1, b2), true, "Same property, same constructor");
1195     equals(QUnit.equiv(a1, b1), false, "Same properties but different constructor"); // failed
1196
1197     function Car(year) {
1198         var privateVar = 0;
1199         this.year = year;
1200         this.isOld = function() {
1201             return year > 10;
1202         };
1203     }
1204
1205     function Human(year) {
1206         var privateVar = 1;
1207         this.year = year;
1208         this.isOld = function() {
1209             return year > 80;
1210         };
1211     }
1212
1213     var car = new Car(30);
1214     var carSame = new Car(30);
1215     var carDiff = new Car(10);
1216     var human = new Human(30);
1217
1218     var diff = {
1219         year: 30
1220     };
1221
1222     var same = {
1223         year: 30,
1224         isOld: function () {}
1225     };
1226
1227     equals(QUnit.equiv(car, car), true);
1228     equals(QUnit.equiv(car, carDiff), false);
1229     equals(QUnit.equiv(car, carSame), true);
1230     equals(QUnit.equiv(car, human), false);
1231 });
1232
1233
1234 test("Complex Instances Nesting (with function value in literals and/or in nested instances)", function() {
1235     function A(fn) {
1236         this.a = {};
1237         this.fn = fn;
1238         this.b = {a: []};
1239         this.o = {};
1240         this.fn1 = fn;
1241     }
1242     function B(fn) {
1243         this.fn = fn;
1244         this.fn1 = function () {};
1245         this.a = new A(function () {});
1246     }
1247
1248     function fnOutside() {
1249     }
1250
1251     function C(fn) {
1252         function fnInside() {
1253         }
1254         this.x = 10;
1255         this.fn = fn;
1256         this.fn1 = function () {};
1257         this.fn2 = fnInside;
1258         this.fn3 = {
1259             a: true,
1260             b: fnOutside // ok make reference to a function in all instances scope
1261         };
1262         this.o1 = {};
1263
1264         // This function will be ignored.
1265         // Even if it is not visible for all instances (e.g. locked in a closures),
1266         // it is from a  property that makes part of an instance (e.g. from the C constructor)
1267         this.b1 = new B(function () {});
1268         this.b2 = new B({
1269             x: {
1270                 b2: new B(function() {})
1271             }
1272         });
1273     }
1274
1275     function D(fn) {
1276         function fnInside() {
1277         }
1278         this.x = 10;
1279         this.fn = fn;
1280         this.fn1 = function () {};
1281         this.fn2 = fnInside;
1282         this.fn3 = {
1283             a: true,
1284             b: fnOutside, // ok make reference to a function in all instances scope
1285
1286             // This function won't be ingored.
1287             // It isn't visible for all C insances
1288             // and it is not in a property of an instance. (in an Object instances e.g. the object literal)
1289             c: fnInside
1290         };
1291         this.o1 = {};
1292
1293         // This function will be ignored.
1294         // Even if it is not visible for all instances (e.g. locked in a closures),
1295         // it is from a  property that makes part of an instance (e.g. from the C constructor)
1296         this.b1 = new B(function () {});
1297         this.b2 = new B({
1298             x: {
1299                 b2: new B(function() {})
1300             }
1301         });
1302     }
1303
1304     function E(fn) {
1305         function fnInside() {
1306         }
1307         this.x = 10;
1308         this.fn = fn;
1309         this.fn1 = function () {};
1310         this.fn2 = fnInside;
1311         this.fn3 = {
1312             a: true,
1313             b: fnOutside // ok make reference to a function in all instances scope
1314         };
1315         this.o1 = {};
1316
1317         // This function will be ignored.
1318         // Even if it is not visible for all instances (e.g. locked in a closures),
1319         // it is from a  property that makes part of an instance (e.g. from the C constructor)
1320         this.b1 = new B(function () {});
1321         this.b2 = new B({
1322             x: {
1323                 b1: new B({a: function() {}}),
1324                 b2: new B(function() {})
1325             }
1326         });
1327     }
1328
1329
1330     var a1 = new A(function () {});
1331     var a2 = new A(function () {});
1332     equals(QUnit.equiv(a1, a2), true);
1333
1334     equals(QUnit.equiv(a1, a2), true); // different instances
1335
1336     var b1 = new B(function () {});
1337     var b2 = new B(function () {});
1338     equals(QUnit.equiv(a1, a2), true);
1339
1340     var c1 = new C(function () {});
1341     var c2 = new C(function () {});
1342     equals(QUnit.equiv(c1, c2), true);
1343
1344     var d1 = new D(function () {});
1345     var d2 = new D(function () {});
1346     equals(QUnit.equiv(d1, d2), false);
1347
1348     var e1 = new E(function () {});
1349     var e2 = new E(function () {});
1350     equals(QUnit.equiv(e1, e2), false);
1351
1352 });
1353
1354
1355 test('object with references to self wont loop', function(){
1356     var circularA = {
1357         abc:null
1358     }, circularB = {
1359         abc:null
1360     };
1361     circularA.abc = circularA;
1362     circularB.abc = circularB;
1363     equals(QUnit.equiv(circularA, circularB), true, "Should not repeat test on object (ambigous test)");
1364
1365     circularA.def = 1;
1366     circularB.def = 1;
1367     equals(QUnit.equiv(circularA, circularB), true, "Should not repeat test on object (ambigous test)");
1368
1369     circularA.def = 1;
1370     circularB.def = 0;
1371     equals(QUnit.equiv(circularA, circularB), false, "Should not repeat test on object (unambigous test)");
1372 });
1373
1374 test('array with references to self wont loop', function(){
1375     var circularA = [],
1376         circularB = [];
1377     circularA.push(circularA);
1378     circularB.push(circularB);
1379     equals(QUnit.equiv(circularA, circularB), true, "Should not repeat test on array (ambigous test)");
1380
1381     circularA.push( 'abc' );
1382     circularB.push( 'abc' );
1383     equals(QUnit.equiv(circularA, circularB), true, "Should not repeat test on array (ambigous test)");
1384
1385     circularA.push( 'hello' );
1386     circularB.push( 'goodbye' );
1387     equals(QUnit.equiv(circularA, circularB), false, "Should not repeat test on array (unambigous test)");
1388 });
1389
1390 test('mixed object/array with references to self wont loop', function(){
1391     var circularA = [{abc:null}],
1392         circularB = [{abc:null}];
1393     circularA[0].abc = circularA;
1394     circularB[0].abc = circularB;
1395
1396     circularA.push(circularA);
1397     circularB.push(circularB);
1398     equals(QUnit.equiv(circularA, circularB), true, "Should not repeat test on object/array (ambigous test)");
1399
1400     circularA[0].def = 1;
1401     circularB[0].def = 1;
1402     equals(QUnit.equiv(circularA, circularB), true, "Should not repeat test on object/array (ambigous test)");
1403
1404     circularA[0].def = 1;
1405     circularB[0].def = 0;
1406     equals(QUnit.equiv(circularA, circularB), false, "Should not repeat test on object/array (unambigous test)");
1407 });
1408
1409 test("Test that must be done at the end because they extend some primitive's prototype", function() {
1410     // Try that a function looks like our regular expression.
1411     // This tests if we check that a and b are really both instance of RegExp
1412     Function.prototype.global = true;
1413     Function.prototype.multiline = true;
1414     Function.prototype.ignoreCase = false;
1415     Function.prototype.source = "my regex";
1416     var re = /my regex/gm;
1417     equals(QUnit.equiv(re, function () {}), false, "A function that looks that a regex isn't a regex");
1418     // This test will ensures it works in both ways, and ALSO especially that we can make differences
1419     // between RegExp and Function constructor because typeof on a RegExpt instance is "function"
1420     equals(QUnit.equiv(function () {}, re), false, "Same conversely, but ensures that function and regexp are distinct because their constructor are different");
1421 });