| 1 | /* |
| 2 | * Copyright 2009 Google Inc. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| 5 | * use this file except in compliance with the License. You may obtain a copy of |
| 6 | * the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 12 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 13 | * License for the specific language governing permissions and limitations under |
| 14 | * the License. |
| 15 | */ |
| 16 | |
| 17 | function expectAsserts(count) { |
| 18 | jstestdriver.expectedAssertCount = count; |
| 19 | } |
| 20 | |
| 21 | |
| 22 | this.fail = function fail(msg) { |
| 23 | var err = new Error(msg); |
| 24 | err.name = 'AssertError'; |
| 25 | |
| 26 | if (!err.message) { |
| 27 | err.message = msg; |
| 28 | } |
| 29 | |
| 30 | throw err; |
| 31 | } |
| 32 | |
| 33 | |
| 34 | function isBoolean_(bool) { |
| 35 | if (typeof(bool) != 'boolean') { |
| 36 | this.fail('Not a boolean: ' + this.prettyPrintEntity_(bool)); |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | var isElement_ = (function () { |
| 41 | var div = document.createElement('div'); |
| 42 | |
| 43 | function isNode(obj) { |
| 44 | try { |
| 45 | div.appendChild(obj); |
| 46 | div.removeChild(obj); |
| 47 | } catch (e) { |
| 48 | return false; |
| 49 | } |
| 50 | |
| 51 | return true; |
| 52 | } |
| 53 | |
| 54 | return function isElement(obj) { |
| 55 | return obj && obj.nodeType === 1 && isNode(obj); |
| 56 | }; |
| 57 | }()); |
| 58 | |
| 59 | function formatElement_(el) { |
| 60 | var tagName; |
| 61 | |
| 62 | try { |
| 63 | tagName = el.tagName.toLowerCase(); |
| 64 | var str = "<" + tagName; |
| 65 | var attrs = el.attributes, attribute; |
| 66 | |
| 67 | for (var i = 0, l = attrs.length; i < l; i++) { |
| 68 | attribute = attrs.item(i); |
| 69 | |
| 70 | if (!!attribute.nodeValue) { |
| 71 | str += " " + attribute.nodeName + "=\"" + attribute.nodeValue + "\""; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | return str + ">...</" + tagName + ">"; |
| 76 | } catch (e) { |
| 77 | return "[Element]" + (!!tagName ? " " + tagName : ""); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | function prettyPrintEntity_(entity) { |
| 82 | if (isElement_(entity)) { |
| 83 | return formatElement_(entity); |
| 84 | } |
| 85 | |
| 86 | var str; |
| 87 | |
| 88 | if (typeof entity == "function") { |
| 89 | try { |
| 90 | str = entity.toString().match(/(function [^\(]+\(\))/)[1]; |
| 91 | } catch (e) {} |
| 92 | |
| 93 | return str || "[function]"; |
| 94 | } |
| 95 | |
| 96 | try { |
| 97 | str = this.JSON.stringify(entity); |
| 98 | } catch (e) {} |
| 99 | |
| 100 | return str || "[" + typeof entity + "]"; |
| 101 | } |
| 102 | |
| 103 | |
| 104 | function argsWithOptionalMsg_(args, length) { |
| 105 | var copyOfArgs = []; |
| 106 | // make copy because it's bad practice to change a passed in mutable |
| 107 | // And to ensure we aren't working with an arguments array. IE gets bitchy. |
| 108 | for(var i = 0; i < args.length; i++) { |
| 109 | copyOfArgs.push(args[i]); |
| 110 | } |
| 111 | var min = length - 1; |
| 112 | |
| 113 | if (args.length < min) { |
| 114 | this.fail("expected at least " + |
| 115 | min + " arguments, got " + args.length); |
| 116 | } else if (args.length == length) { |
| 117 | copyOfArgs[0] += " "; |
| 118 | } else { |
| 119 | copyOfArgs.unshift(""); |
| 120 | } |
| 121 | return copyOfArgs; |
| 122 | } |
| 123 | |
| 124 | |
| 125 | function assertTrue(msg, actual) { |
| 126 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 127 | jstestdriver.assertCount++; |
| 128 | |
| 129 | isBoolean_(args[1]); |
| 130 | if (args[1] != true) { |
| 131 | this.fail(args[0] + 'expected true but was ' + |
| 132 | this.prettyPrintEntity_(args[1])); |
| 133 | } |
| 134 | return true; |
| 135 | }; |
| 136 | |
| 137 | |
| 138 | function assertFalse(msg, actual) { |
| 139 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 140 | jstestdriver.assertCount++; |
| 141 | |
| 142 | isBoolean_(args[1]); |
| 143 | if (args[1] != false) { |
| 144 | this.fail(args[0] + 'expected false but was ' + |
| 145 | this.prettyPrintEntity_(args[1])); |
| 146 | } |
| 147 | return true; |
| 148 | }; |
| 149 | |
| 150 | |
| 151 | function assertEquals(msg, expected, actual) { |
| 152 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 153 | jstestdriver.assertCount++; |
| 154 | msg = args[0]; |
| 155 | expected = args[1]; |
| 156 | actual = args[2]; |
| 157 | |
| 158 | if (!compare_(expected, actual)) { |
| 159 | this.fail(msg + 'expected ' + this.prettyPrintEntity_(expected) + |
| 160 | ' but was ' + this.prettyPrintEntity_(actual) + ''); |
| 161 | } |
| 162 | return true; |
| 163 | }; |
| 164 | |
| 165 | |
| 166 | function compare_(expected, actual) { |
| 167 | if (expected === actual) { |
| 168 | return true; |
| 169 | } |
| 170 | |
| 171 | if (typeof expected != "object" || |
| 172 | typeof actual != "object" || |
| 173 | !expected || !actual) { |
| 174 | return expected == actual; |
| 175 | } |
| 176 | |
| 177 | if (isElement_(expected) || isElement_(actual)) { |
| 178 | return false; |
| 179 | } |
| 180 | |
| 181 | var key = null; |
| 182 | var actualLength = 0; |
| 183 | var expectedLength = 0; |
| 184 | |
| 185 | try { |
| 186 | // If an array is expected the length of actual should be simple to |
| 187 | // determine. If it is not it is undefined. |
| 188 | if (jstestdriver.jQuery.isArray(actual)) { |
| 189 | actualLength = actual.length; |
| 190 | } else { |
| 191 | // In case it is an object it is a little bit more complicated to |
| 192 | // get the length. |
| 193 | for (key in actual) { |
| 194 | if (actual.hasOwnProperty(key)) { |
| 195 | ++actualLength; |
| 196 | } |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | // Arguments object |
| 201 | if (actualLength == 0 && typeof actual.length == "number") { |
| 202 | actualLength = actual.length; |
| 203 | |
| 204 | for (var i = 0, l = actualLength; i < l; i++) { |
| 205 | if (!(i in actual)) { |
| 206 | actualLength = 0; |
| 207 | break; |
| 208 | } |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | for (key in expected) { |
| 213 | if (expected.hasOwnProperty(key)) { |
| 214 | if (!compare_(expected[key], actual[key])) { |
| 215 | return false; |
| 216 | } |
| 217 | |
| 218 | ++expectedLength; |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | if (expectedLength != actualLength) { |
| 223 | return false; |
| 224 | } |
| 225 | |
| 226 | return expectedLength == 0 ? expected.toString() == actual.toString() : true; |
| 227 | } catch (e) { |
| 228 | return false; |
| 229 | } |
| 230 | }; |
| 231 | |
| 232 | |
| 233 | function assertNotEquals(msg, expected, actual) { |
| 234 | try { |
| 235 | assertEquals.apply(this, arguments); |
| 236 | } catch (e) { |
| 237 | if (e.name == "AssertError") { |
| 238 | return true; |
| 239 | } |
| 240 | |
| 241 | throw e; |
| 242 | } |
| 243 | |
| 244 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 245 | |
| 246 | this.fail(args[0] + "expected " + this.prettyPrintEntity_(args[1]) + |
| 247 | " not to be equal to " + this.prettyPrintEntity_(args[2])); |
| 248 | } |
| 249 | |
| 250 | |
| 251 | function assertSame(msg, expected, actual) { |
| 252 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 253 | jstestdriver.assertCount++; |
| 254 | |
| 255 | if (!isSame_(args[2], args[1])) { |
| 256 | this.fail(args[0] + 'expected ' + this.prettyPrintEntity_(args[1]) + |
| 257 | ' but was ' + this.prettyPrintEntity_(args[2])); |
| 258 | } |
| 259 | return true; |
| 260 | }; |
| 261 | |
| 262 | |
| 263 | function assertNotSame(msg, expected, actual) { |
| 264 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 265 | jstestdriver.assertCount++; |
| 266 | |
| 267 | if (isSame_(args[2], args[1])) { |
| 268 | this.fail(args[0] + 'expected not same as ' + |
| 269 | this.prettyPrintEntity_(args[1]) + ' but was ' + |
| 270 | this.prettyPrintEntity_(args[2])); |
| 271 | } |
| 272 | return true; |
| 273 | }; |
| 274 | |
| 275 | |
| 276 | function isSame_(expected, actual) { |
| 277 | return actual === expected; |
| 278 | }; |
| 279 | |
| 280 | |
| 281 | function assertNull(msg, actual) { |
| 282 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 283 | jstestdriver.assertCount++; |
| 284 | |
| 285 | if (args[1] !== null) { |
| 286 | this.fail(args[0] + 'expected null but was ' + |
| 287 | this.prettyPrintEntity_(args[1])); |
| 288 | } |
| 289 | return true; |
| 290 | }; |
| 291 | |
| 292 | |
| 293 | function assertNotNull(msg, actual) { |
| 294 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 295 | jstestdriver.assertCount++; |
| 296 | |
| 297 | if (args[1] === null) { |
| 298 | this.fail(args[0] + "expected not null but was null"); |
| 299 | } |
| 300 | |
| 301 | return true; |
| 302 | }; |
| 303 | |
| 304 | |
| 305 | function assertUndefined(msg, actual) { |
| 306 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 307 | jstestdriver.assertCount++; |
| 308 | |
| 309 | if (typeof args[1] != "undefined") { |
| 310 | this.fail(args[2] + "expected undefined but was " + |
| 311 | this.prettyPrintEntity_(args[1])); |
| 312 | } |
| 313 | return true; |
| 314 | }; |
| 315 | |
| 316 | |
| 317 | function assertNotUndefined(msg, actual) { |
| 318 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 319 | jstestdriver.assertCount++; |
| 320 | |
| 321 | if (typeof args[1] == "undefined") { |
| 322 | this.fail(args[0] + 'expected not undefined but was undefined'); |
| 323 | } |
| 324 | return true; |
| 325 | }; |
| 326 | |
| 327 | |
| 328 | function assertNaN(msg, actual) { |
| 329 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 330 | jstestdriver.assertCount++; |
| 331 | |
| 332 | if (!isNaN(args[1])) { |
| 333 | this.fail(args[0] + "expected to be NaN but was " + args[1]); |
| 334 | } |
| 335 | |
| 336 | return true; |
| 337 | } |
| 338 | |
| 339 | |
| 340 | function assertNotNaN(msg, actual) { |
| 341 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 342 | jstestdriver.assertCount++; |
| 343 | |
| 344 | if (isNaN(args[1])) { |
| 345 | this.fail(args[0] + "expected not to be NaN"); |
| 346 | } |
| 347 | |
| 348 | return true; |
| 349 | } |
| 350 | |
| 351 | |
| 352 | function assertException(msg, callback, error) { |
| 353 | if (arguments.length == 1) { |
| 354 | // assertThrows(callback) |
| 355 | callback = msg; |
| 356 | msg = ""; |
| 357 | } else if (arguments.length == 2) { |
| 358 | if (typeof callback != "function") { |
| 359 | // assertThrows(callback, type) |
| 360 | error = callback; |
| 361 | callback = msg; |
| 362 | msg = ""; |
| 363 | } else { |
| 364 | // assertThrows(msg, callback) |
| 365 | msg += " "; |
| 366 | } |
| 367 | } else { |
| 368 | // assertThrows(msg, callback, type) |
| 369 | msg += " "; |
| 370 | } |
| 371 | |
| 372 | jstestdriver.assertCount++; |
| 373 | |
| 374 | try { |
| 375 | callback(); |
| 376 | } catch(e) { |
| 377 | if (e.name == "AssertError") { |
| 378 | throw e; |
| 379 | } |
| 380 | |
| 381 | if (error && e.name != error) { |
| 382 | this.fail(msg + "expected to throw " + |
| 383 | error + " but threw " + e.name); |
| 384 | } |
| 385 | |
| 386 | return true; |
| 387 | } |
| 388 | |
| 389 | this.fail(msg + "expected to throw exception"); |
| 390 | } |
| 391 | |
| 392 | |
| 393 | function assertNoException(msg, callback) { |
| 394 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 395 | jstestdriver.assertCount++; |
| 396 | |
| 397 | try { |
| 398 | args[1](); |
| 399 | } catch(e) { |
| 400 | fail(args[0] + "expected not to throw exception, but threw " + |
| 401 | e.name + " (" + e.message + ")"); |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | |
| 406 | function assertArray(msg, actual) { |
| 407 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 408 | jstestdriver.assertCount++; |
| 409 | |
| 410 | if (!jstestdriver.jQuery.isArray(args[1])) { |
| 411 | fail(args[0] + "expected to be array, but was " + |
| 412 | this.prettyPrintEntity_(args[1])); |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | |
| 417 | function assertTypeOf(msg, expected, value) { |
| 418 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 419 | jstestdriver.assertCount++; |
| 420 | var actual = typeof args[2]; |
| 421 | |
| 422 | if (actual != args[1]) { |
| 423 | this.fail(args[0] + "expected to be " + args[1] + " but was " + actual); |
| 424 | } |
| 425 | |
| 426 | return true; |
| 427 | } |
| 428 | |
| 429 | |
| 430 | function assertBoolean(msg, actual) { |
| 431 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 432 | return assertTypeOf(args[0], "boolean", args[1]); |
| 433 | } |
| 434 | |
| 435 | |
| 436 | function assertFunction(msg, actual) { |
| 437 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 438 | return assertTypeOf(args[0], "function", args[1]); |
| 439 | } |
| 440 | |
| 441 | |
| 442 | function assertObject(msg, actual) { |
| 443 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 444 | return assertTypeOf(args[0], "object", args[1]); |
| 445 | } |
| 446 | |
| 447 | |
| 448 | function assertNumber(msg, actual) { |
| 449 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 450 | return assertTypeOf(args[0], "number", args[1]); |
| 451 | } |
| 452 | |
| 453 | |
| 454 | function assertString(msg, actual) { |
| 455 | var args = this.argsWithOptionalMsg_(arguments, 2); |
| 456 | return assertTypeOf(args[0], "string", args[1]); |
| 457 | } |
| 458 | |
| 459 | |
| 460 | function assertMatch(msg, regexp, actual) { |
| 461 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 462 | var isUndef = typeof args[2] == "undefined"; |
| 463 | jstestdriver.assertCount++; |
| 464 | var _undef; |
| 465 | |
| 466 | if (isUndef || !args[1].test(args[2])) { |
| 467 | actual = (isUndef ? _undef : this.prettyPrintEntity_(args[2])); |
| 468 | this.fail(args[0] + "expected " + actual + " to match " + args[1]); |
| 469 | } |
| 470 | |
| 471 | return true; |
| 472 | } |
| 473 | |
| 474 | |
| 475 | function assertNoMatch(msg, regexp, actual) { |
| 476 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 477 | jstestdriver.assertCount++; |
| 478 | |
| 479 | if (args[1].test(args[2])) { |
| 480 | this.fail(args[0] + "expected " + this.prettyPrintEntity_(args[2]) + |
| 481 | " not to match " + args[1]); |
| 482 | } |
| 483 | |
| 484 | return true; |
| 485 | } |
| 486 | |
| 487 | |
| 488 | function assertTagName(msg, tagName, element) { |
| 489 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 490 | var actual = args[2] && args[2].tagName; |
| 491 | |
| 492 | if (String(actual).toUpperCase() != args[1].toUpperCase()) { |
| 493 | this.fail(args[0] + "expected tagName to be " + args[1] + " but was " + |
| 494 | actual); |
| 495 | } |
| 496 | return true; |
| 497 | } |
| 498 | |
| 499 | |
| 500 | function assertClassName(msg, className, element) { |
| 501 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 502 | var actual = args[2] && args[2].className; |
| 503 | var regexp = new RegExp("(^|\\s)" + args[1] + "(\\s|$)"); |
| 504 | |
| 505 | try { |
| 506 | this.assertMatch(args[0], regexp, actual); |
| 507 | } catch (e) { |
| 508 | actual = this.prettyPrintEntity_(actual); |
| 509 | this.fail(args[0] + "expected class name to include " + |
| 510 | this.prettyPrintEntity_(args[1]) + " but was " + actual); |
| 511 | } |
| 512 | |
| 513 | return true; |
| 514 | } |
| 515 | |
| 516 | |
| 517 | function assertElementId(msg, id, element) { |
| 518 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 519 | var actual = args[2] && args[2].id; |
| 520 | jstestdriver.assertCount++; |
| 521 | |
| 522 | if (actual !== args[1]) { |
| 523 | this.fail(args[0] + "expected id to be " + args[1] + " but was " + |
| 524 | actual); |
| 525 | } |
| 526 | |
| 527 | return true; |
| 528 | } |
| 529 | |
| 530 | |
| 531 | function assertInstanceOf(msg, constructor, actual) { |
| 532 | jstestdriver.assertCount++; |
| 533 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 534 | var pretty = this.prettyPrintEntity_(args[2]); |
| 535 | var expected = args[1] && args[1].name || args[1]; |
| 536 | |
| 537 | if (args[2] == null) { |
| 538 | this.fail(args[0] + "expected " + pretty + " to be instance of " + |
| 539 | expected); |
| 540 | } |
| 541 | |
| 542 | if (!(Object(args[2]) instanceof args[1])) { |
| 543 | this.fail(args[0] + "expected " + pretty + " to be instance of " + |
| 544 | expected); |
| 545 | } |
| 546 | |
| 547 | return true; |
| 548 | } |
| 549 | |
| 550 | |
| 551 | function assertNotInstanceOf(msg, constructor, actual) { |
| 552 | var args = this.argsWithOptionalMsg_(arguments, 3); |
| 553 | jstestdriver.assertCount++; |
| 554 | |
| 555 | if (Object(args[2]) instanceof args[1]) { |
| 556 | var expected = args[1] && args[1].name || args[1]; |
| 557 | var pretty = this.prettyPrintEntity_(args[2]); |
| 558 | this.fail(args[0] + "expected " + pretty + " not to be instance of " + |
| 559 | expected); |
| 560 | } |
| 561 | |
| 562 | return true; |
| 563 | } |
| 564 | |
| 565 | var assert = assertTrue; |