1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611
|
#!perl -T
do './t/jstest.pl' or die __DATA__
function joyne (ary) { // Unlike the built-in, this does not convert
var ret = ''; // undefined to an empty string.
for(var i = 0; i<ary.length;++i)
ret +=(i?',':'')+(i in ary ? ary[i] : '-')
return ret
}
function keys (o) {
var a = []
for(a[a.length] in o);
a.sort()
return a
}
// ===================================================
// 15.4.1 Array()
// ===================================================
// 5 tests (number of args != 1)
ok(Array().constructor === Array, 'prototype of retval of Array()')
is(Object.prototype.toString.apply(Array()), '[object Array]',
'class of Array()')
ok(Array().length === 0, 'Array().length')
ok(Array(1,3,3).length === 3, 'Array(blah blah blah).length')
a =Array(1,"3",3)
ok(a[0] === 1 && a[1]==='3' && a[2] ===3,
'what happens to Array()\'s args')
// 9 tests (number of args == 1)
ok(Array(5).constructor === Array, 'prototype of retval of Array(num)')
is(Object.prototype.toString.apply(Array(4)), '[object Array]',
'class of Array(num)')
error = false
try{Array(-67)}
catch(e){error = e}
ok(error instanceof RangeError, 'Array(-num)')
error = false
try{Array(38383783738773783)}
catch(e){error = e}
ok(error instanceof RangeError, 'Array(big num)')
ok(Array('5').length === 1, 'Array("num").length')
ok(Array('5')[0] === "5", 'Array("num")[0]')
ok(Array(new Number(6)).length === 1, 'Array(number obj)')
ok(Array("478887438888874347743").length === 1, 'Array("big num")')
is(Array('foo'), 'foo', 'Array(str)')
// ===================================================
// 15.4.2 new Array
// ===================================================
// 5 tests (number of args != 1)
ok(new Array().constructor === Array,
'prototype of retval of new Array()')
is(Object.prototype.toString.apply(new Array()), '[object Array]',
'class of new Array()')
ok(new Array().length === 0, 'new Array().length')
ok(new Array(1,3,3).length === 3, 'new Array(blah blah blah).length')
a =new Array(1,"3",3)
ok(a[0] === 1 && a[1]==='3' && a[2] ===3,
'what happens to new Array()\'s args')
// 9 tests (number of args == 1)
ok(new Array(5).constructor === Array,
'prototype of retval of new Array(num)')
is(Object.prototype.toString.apply(new Array(4)), '[object Array]',
'class of new Array(num)')
error = false
try{new Array(-67)}
catch(e){error = e}
ok(error instanceof RangeError, 'new Array(-num)')
error = false
try{new Array(38383783738773783)}
catch(e){error = e}
ok(error instanceof RangeError, 'new Array(big num)')
ok(new Array('5').length === 1, 'new Array("num").length')
ok(new Array('5')[0] === "5", 'new Array("num")[0]')
ok(new Array(new Number(6)).length === 1, 'new Array(number obj)')
ok(new Array("478887438888874347743").length === 1, 'new Array("big num")')
is(new Array('foo'), 'foo', 'new Array(str)')
// ===================================================
// 15.4.3 Array
// ===================================================
// 10 tests (boilerplate stuff for constructors)
is(typeof Array, 'function', 'typeof Array');
is(Object.prototype.toString.apply(Array), '[object Function]',
'class of Array')
ok(Array.constructor === Function, 'Array\'s prototype')
ok(Array.length === 1, 'Array.length')
ok(!Array.propertyIsEnumerable('length'),
'Array.length is not enumerable')
ok(!delete Array.length, 'Array.length cannot be deleted')
is((Array.length++, Array.length), 1, 'Array.length is read-only')
ok(!Array.propertyIsEnumerable('prototype'),
'Array.prototype is not enumerable')
ok(!delete Array.prototype, 'Array.prototype cannot be deleted')
cmp_ok((Array.prototype = 7, Array.prototype), '!=', 7,
'Array.prototype is read-only')
// ===================================================
// 15.4.4: Array prototype
// ===================================================
// 3 tests
is(Object.prototype.toString.apply(Array.prototype),
'[object Array]',
'class of Array.prototype')
ok(Array.prototype.length === 0,
'Array.prototype.length')
ok(peval('shift->prototype',Array.prototype) === Object.prototype,
'Array.prototype\'s prototype')
// ===================================================
// 15.4.4.1 Array.prototype.constructor
// ===================================================
// 2 tests
ok(Array.prototype.hasOwnProperty('constructor'),
'Array.prototype has its own constructor property')
ok(Array.prototype.constructor === Array,
'value of Array.prototype.constructor')
// ===================================================
// 15.4.4.2: toString
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'toString',0)
// 4 tests specific to toString
is([1,null,true,false,void 0,{},"kjd"].toString(),
'1,,true,false,,[object Object],kjd',
'toString')
name = 'toString stringifies functions inside the array'
try {
is(
[Array].toString(), Array.toString(),
name
)
}
catch(e) { fail(name); diag(e) }
try { Array.prototype.toString.apply(3) }
catch(it) { ok(it.message.substring(0,22) == 'Object is not an Array',
"toString's error message")
ok(it instanceof TypeError,
"toString's error type") }
// ===================================================
// 15.4.4.3: toLocaleString
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'toLocaleString',0)
// 3 tests specific to toLocaleString
is([1,null,true,false,void 0,{},"kjd"].toLocaleString(),
'1,,true,false,,[object Object],kjd',
'toLocaleString')
try { Array.prototype.toLocaleString.apply(3) }
catch(it) { ok(it.message.substring(0,22) == 'Object is not an Array')
ok(it instanceof TypeError) }
// ===================================================
// 15.4.4.4: concat
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'concat',1)
// 5 tests specific to concat
a = [1,2,3].concat(true,[,7,8,],"fff",{})
is (a.length, 9, 'array length after concat')
ok(a[0] === 1
&&a[1] === 2
&&a[2] === 3
&&a[3] === true
&&!(4 in a)
&&a[5] === 7
&&a[6] === 8
&&a[7] === 'fff'
&&a[8] == '[object Object]',
'elements of array returned by concat') || diag(a)
o = {length: 78, 0:82}
a =Array.prototype.concat.call(o,[1,2,3])
is(a.length, 4,
'length of array returned by concat with a non-array this value')
ok(a[0] == o && a == '[object Object],1,2,3',
'elements of array returned by concat with a non-array this value')
is(typeof Array.prototype.concat.call(true)[0], 'object',
'1st elem of array returned by concat when called w/a bool is an obj')
// ===================================================
// 15.4.4.5: join
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'join',1)
// 16 tests specific to join
0,function(){
var f = Array.prototype.join
is (f.call({0:0}), '', 'join with no length')
is (f.call({length:undefined,0:0}),'', 'join w/undefined length')
is (f.call({length: true, 0:'usl/s'}), 'usl/s', 'join w/bool len')
is (f.call({length: null, 0:'etet'}), '',' join with null length')
is (f.call({length: {}, 0:'Upsot'}), '','join w/obj 4 length')
is (f.call({length: '3', 1: 'Npd;;d'}),',Npd;;d,','join w/str len')
is(f.call({length: 2.3, 1: 'g;'}), ',g;', 'join w/fractional len')
is(f.call({length:-4294967290,1:'co'}), ',co,,,,','join w/neg len')
}()
is( [1,2,3].join(), '1,2,3', 'join w/ no args')
is([1,2,3].join(true),'1true2true3','join w/bool arg')
is([1,2,3].join(23),'1232233','join w/numeric arg')
is([1,2,3].join('stringy'),'1stringy2stringy3','join w/stringy arg')
is([1,2,3].join(null),'1null2null3','join w/null arg');
is([1,2,3].join({}),'1[object Object]2[object Object]3','join w/obj arg');
is([1,2,3].join(undefined),'1,2,3','join w/undef arg');
is([1,null,true,false,void 0,{},"kjd"].join(),
'1,,true,false,,[object Object],kjd',
'join w/different types of array elems')
// ===================================================
// 15.4.4.6: pop
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'pop',0)
// 18 tests specific to pop
0,function(){
var f = Array.prototype.pop
var o = {0:0};;
is (f.call(o), 'undefined', 'retval of pop with no length')
is (o[0], 0,'pop w/no length does nothing')
ok (o.length === 0, ' except set the length to 0')
o = {length:undefined,0:0}
is (f.call(o),'undefined', 'retval of pop w/undefined length')
is (o.length, 0, 'pop w/undefined sets length to 0')
o = {length: true, 0:'usl/s'}
is (f.call(o), 'usl/s', 'pop w/bool len')
is (o.length, 0, 'pop w/bool length sets the length')
ok (!(0 in o), 'pop deletes a property of a non-array objct')
is (f.call({length: null, 0:'etet'}),'undefined',' pop w/null len')
is (f.call({length: {}, 0:'Upsot'}),void 0,'pop w/obj 4 length')
is (f.call({length: '3', 1: 'Npd;;d'}),'undefined','pop w/str len')
o = {length: 2.3, 1: 'g;'}
is(f.call(o), 'g;', 'pop w/fractional len')
is(o.length, 1, 'length after pop w/fraction length')
o= {length:-4294967290,1:'co'}, f.call(o)
ok(o.length === 5, 'pop w/neg len')
}()
a = []
is(a.pop(), undefined, 'pop with zero-length real array')
is(a.length, 0,'array length after pop on zero-length array');
a = [5,6,7,8,]
ok(a.pop() === 8, 'retval of "normal" array pop')
is(a,'5,6,7', 'what pop did to the array')
// ===================================================
// 15.4.4.7: push
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'push',1)
// 18 tests specific to push
0,function(){
var f = Array.prototype.push
var o = {0:0};;
is (f.call(o,8,9), 2, 'retval of push on obj with no length')
is (o[0]+''+o[1], 89,'elems created by push w/no length')
ok (o.length === 2,'length after push w/no length')||diag(o.length)
o = {length:undefined,0:0}
is (f.call(o,7),1, 'retval of push w/undefined length')
is (o.length, 1, 'length after push on obj w/undefined length')
o = {length: true, 0:'usl/s', 1:73}
is (f.call(o,"ooo"), '2', 'push w/bool len')
is (o.length, 2, 'length after push w/bool length')
is (o[1], 'ooo', 'push overwrites existing props')
is (f.call({length: null, 0:'etet'}),0,'push w/null len')
is (f.call({length: {}, 0:'Upsot'}),0,'push w/obj 4 length')
ok (f.call({length: '3', 1: 'Npd;;d'})===3,'push w/str len')||diag(typeof f.call({length: '3', 1: 'Npd;;d'}))
o = {length: 2.3, 1: 'g;'}
is(f.call(o,78), '3', 'push w/fractional len')
is(o.length, 3, 'length after push w/fraction length')
o= {length:-4294967290,1:'co'}, f.call(o)
is(o.length, 6, 'push w/neg len')
}()
a = [1,2,3]
is(a.push(), 3, 'push on real array with no args')
is(a.length, 3,'array length after push real array w/no args');
ok(a.push(5.7,8,7) === 6, 'retval of "normal" array push')
is(a,'1,2,3,5.7,8,7', 'what push did to the array')
// ===================================================
// 15.4.4.8: reverse
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'reverse',0)
// 13 tests specific to reverse
0,function(){
var f = Array.prototype.reverse
var o = {0:0};;
f.call(o)
is (keys(o), '0',
'reverse on obj w/no length appears not to do anything')
o = {length:undefined,0:0}
f.call(o)
is (keys(o)+o[0]+o.length, '0,length0undefined',
'reverse on obj w/undefined length appears to do nothing')
o = {length: true, 0:'usl/s', 1:73}
f.call(o)
is(o.length+o[0]+o[1],'trueusl/s73',
'reverse w/bool length likewise does nothing')
is (keys(f.call({length: null, 0:'etet'})),'0,length',
'reverse w/null len')
is(keys(f.call({length:{},0:'Upsot'})),'0,length',
'reverse w/obj 4 length')
f.call(o = {length:'3',2:'Npd;;d'})
is /*are, actually*/ (keys(o), '0,length',
'reverse on obj w/gaps in its numeric props adds & deletes props')
f.call(o = {length: 10, 0: true, 2: false, 3: 78, 8: {}})
is(o[1]+o[6]+o[7]+o[9], '[object Object]78falsetrue',
' and the properties it adds have the right values')
o = {length: 2.3, 1: 'g;'}
is(f.call(o)[0], 'g;','reverse w/fractional len')
o= {length:-4294967290,1:'co'}, f.call(o)
is(o[4], 'co', 'reverse w/neg len')
}()
a = [1,2,3]
ok(a.reverse()=== a, 'reverse returns the object itself')
is(a, '3,2,1', 'reverse reverses the elements of a real array')
;(a = [1,,undefined,,]).reverse()
is(''+(0 in a)+(1 in a)+(2 in a)+(3 in a),
'falsetruefalsetrue',
"reverse's treatment of defined vs nonexistent properties in real arrays")
is(a.length, 4,'array length after reverse real array w/no args');
//...
// ===================================================
// 15.4.4.10: slice
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'slice',2)
// 1 test for now
is(["one","two","three"].slice(1), "two,three", 'slice');
// ~~~ more tests
/*
different types for the length value; different numbers, too
different types for the first arg (start), including no args
first arg rounding
positive/negative start
start greater than length
negative start, the abs value of which > length
different types for the this value
undefined/omitted end
different types for the end value
end value rounding
negative end value
negative end, the abs value of which > length
end value greater than lengtnh
nonexistent properties less than length
*/
// ===================================================
// 15.4.4.11: sort
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'sort',1)
// 1 test from RT #39462 (by Christian Forster)
function UserSubmit(user,submits)
{
this.user=user;
this.submits=submits;
}
function UserSubmitSort (a, b)
{
return a.submits - b.submits;
}
var um=new Array(
new UserSubmit("a",3),
new UserSubmit("bc",1),
new UserSubmit("add",35),
new UserSubmit("eaea",23)
);
um.sort(UserSubmitSort);
output = ''
for(i=0;i<um.length;i++)
{
output+=(um[i].submits+" "+um[i].user+"\n");
}
is(output, '1 bc\n3 a\n23 eaea\n35 add\n', 'sort with a custom routine')
// 12 tests more
a=['a','b',undefined,,'d','e']
ok(a.sort()===a, 'sort returns its this value')
is(a[0]+a[1]+a[2]+a[3]+a[4]+(5 in a), 'abdeundefinedfalse',
'sorting a real array')
is([2,10].sort(), '10,2', 'default sort is stringwise')
0,function(){
var f = Array.prototype.sort
var o = {0:'b',1:'a',2:undefined,4:'d',5:'e',length:6}
f.call(o)
is(a[0]+a[1]+a[2]+a[3]+a[4]+(5 in a), 'abdeundefinedfalse',
'sorting a non-array object')
var o = {0:0};;
f.call(o)
is (keys(o), '0',
'sort on obj w/no length appears not to do anything')
o = {length:undefined,0:0}
f.call(o)
is (keys(o)+o[0]+o.length, '0,length0undefined',
'sort on obj w/undefined length appears to do nothing')
o = {length: true, 0:'usl/s', 1:73}
f.call(o)
is(o.length+o[0]+o[1],'trueusl/s73',
'sort w/bool length likewise does nothing')
is (keys(f.call({length: null, 0:'etet'})),'0,length',
'sort w/null len')
is(keys(f.call({length:{},0:'Upsot'})),'0,length',
'sort w/obj 4 length')
f.call(o = {length:'3',2:'Npd;;d','3':'a'})
is /*are, actually*/ (keys(o), '0,3,length',
'sort with str length')
o = {length: 2.3, 1: 'g;'}
is(f.call(o)[0], 'g;','sort w/fractional len')
o= {length:-4294967290,1:'co',5:6,6:7}, f.call(o)
is(keys(o), '0,1,6,length', 'sort w/neg len')
}()
// ...
// ===================================================
// 15.4.4.12: splice
// ===================================================
// 10 tests
method_boilerplate_tests(Array.prototype,'splice',2)
// 6 tests for fewer args than three
a = [1,2,3]
is(joyne(a.splice()), '', 'retval of argless splice')
is(joyne(a), '1,2,3', 'argless splice is of none effect');
is(joyne(a.splice(1)), '', 'retval of splice w/1 arg')
is(joyne(a), '1,2,3', 'splice w/1 arg hath none effect');
is(joyne(a.splice(1,1)), '2', 'retval of splice w/2 argz')
is(joyne(a), '1,3', 'effect of splice w/2 args');
// 10 tests for weird length values
a = {0:7,1:8,2:9,length:2.3}
is(joyne([].splice.call(a,1,7,6)), '8',
'retval of splice on obj w/fractional len')
is( a[0] + '' + a[1] + a[2] + a.length, '7692',
'affect of splice on obj with fractional length');
a = {length:"1"}
;[].splice.call(a)
is(typeof a.length, 'number', 'length is converted to a number by splice')
a = {length: -4294967290}
;[].splice.call(a,0,1)
is(a.length, 5, 'splice on obj w/negative length')
delete a.length
;[].splice.call(a,0,0,0)
is(a.length, 1, 'splice on obj w/no length')
a = {length: true}
;[].splice.call(a,0,0,0)
is(a.length, 2, 'splice on obj w/boolean length')
a = {length: null}
;[].splice.call(a,0,0,0)
is(a.length, 1, 'splice on obj w/null length')
a = {length: '2'}
;[].splice.call(a,0,0,0)
ok(a.length === 3, 'splice on obj w/string length') || diag (a.length)
a = {length: void 0}
;[].splice.call(a,0,0,0)
is(a.length, 1, 'splice on obj w/undef length')
a = {length: new String ("3")}
;[].splice.call(a,0,0,0)
ok(a.length === 4, 'splice on obj w/objectionable length')
// 18 tests for different start values
a = [1,2,3,4,5]
is(joyne(a.splice(2,1)), '3',
'retval of splice with positive integer start')
is(joyne(a), '1,2,4,5', 'effect of splice with positive integer start');
is(joyne(a.splice(-3,1)), '2',
'retval of splice with negative start')
is(joyne(a), '1,4,5', 'effect of splice with negative start');
is(joyne(a.splice(1.7,1,2,3,4)), '4',
'retval of splice with fractional start')
is(joyne(a), '1,2,3,4,5', 'effect of splice with fractional start');
is(joyne(a.splice(true,1)), '2',
'retval of splice with boolean start')
is(joyne(a), '1,3,4,5', 'effect of splice with boolean start');
is(joyne(a.splice(null,1)), '1',
'retval of splice with null start')
is(joyne(a), '3,4,5', 'effect of splice with null start');
is(joyne(a.splice('2',1)), '5',
'retval of splice with stringy start')
is(joyne(a), '3,4', 'effect of splice with stringy start');
is(joyne(a.splice(new String(0),1,7,8,9)), '3',
'retval of splice with object start')
is(joyne(a), '7,8,9,4', 'effect of splice with objectionable start');
is(joyne(a.splice(undefined,1)), '7',
'retval of splice with undefined start')
is(joyne(a), '8,9,4', 'effect of splice with undefined start');
is(joyne(a.splice(78,1,3)), '',
'retval of splice with start > length')
is(joyne(a), '8,9,4,3', 'effect of splice with start > length');
// 20 tests for different delete counts
a = [1,2,3,4,5]
is(joyne(a.splice(2,-1)), '',
'retval of splice with negative delete count')
is(joyne(a), '1,2,3,4,5', 'effect of splice with negative delete count');
is(joyne(a.splice(2,0)), '',
'retval of splice with 0 for the delete count')
is(joyne(a), '1,2,3,4,5', 'effect of splice with 0 for the delete count');
is(joyne(a.splice(2,2)), '3,4',
'retval of splice with positive integer delete count')
is(joyne(a), '1,2,5', 'effect of splice w/positive int delete count');
is(joyne(a.splice(0,2.3)), '1,2',
'retval of splice with fractional delete count')
is(joyne(a), '5', 'effect of splice w/fractional delete count');
a = [1,2,3,4,5]
is(joyne(a.splice(2,7)), '3,4,5',
'retval of splice with extra large delete count')
is(joyne(a), '1,2', 'effect of splice w/extra large delete count');
a = [1,2,3,4,5]
is(joyne(a.splice(2,true)), '3',
'retval of splice with boolean delete count')
is(joyne(a), '1,2,4,5', 'effect of splice w/boolean delete count');
is(joyne(a.splice(2,'1')), '4',
'retval of splice with stringy delete count')
is(joyne(a), '1,2,5', 'effect of splice w/stringy delete count');
is(joyne(a.splice(2,null)), '',
'retval of splice with null delete count')
is(joyne(a), '1,2,5', 'effect of splice w/null delete count');
is(joyne(a.splice(2,undefined)), '',
'retval of splice with undefined delete count')
is(joyne(a), '1,2,5', 'effect of splice w/undefined delete count');
is(joyne(a.splice(0,{toString: function(){return 2}})), '1,2',
'retval of splice with object for the delete count')
is(joyne(a), '5', 'effect of splice w/object for the delete count');
// 5 tests for (non-)existent properties, and shifting of properties
a = [undefined,,3,5,7,,,undefined]
is(joyne(a.splice(0,3,"foo", void 0, void 0)), 'undefined,-,3',
'splice retval: non-existent props, insert/remove same number of items')
is(joyne(a), 'foo,undefined,undefined,5,7,-,-,undefined',
'splice effect: non-existent props, insert/remove same number of items')
a.splice(0,3)
is(joyne(a), '5,7,-,-,undefined',
'splice shifting properties left')
a.splice(1,1,true,false)
is(joyne(a), '5,true,false,-,-,undefined',
'splice shifting properties right')
a = {0: 7,1:8,2:9,length:3};
[].splice.call(a,0,1);
is(a[0]+''+a[1]+a[2]+' '+a.length, '899 2',
"splice's weird behaviour when shifting left on a non-array obj");
// (This is according to spec, but Safari and Opera don’t do this.
// SpiderMonkey does.)
// ...
|