| 1 | <html> |
| 2 | <head> |
| 3 | <script type="text/javascript" src="../MochiKit/Base.js"></script> |
| 4 | <script type="text/javascript" src="../MochiKit/Async.js"></script> |
| 5 | <script type="text/javascript" src="../MochiKit/Iter.js"></script> |
| 6 | <script type="text/javascript" src="../MochiKit/DOM.js"></script> |
| 7 | <script type="text/javascript" src="../MochiKit/Style.js"></script> |
| 8 | <script type="text/javascript" src="SimpleTest/SimpleTest.js"></script> |
| 9 | <link rel="stylesheet" type="text/css" href="SimpleTest/test.css"> |
| 10 | </head> |
| 11 | <body> |
| 12 | |
| 13 | <pre id="test"> |
| 14 | <script type="text/javascript"> |
| 15 | try { |
| 16 | |
| 17 | var increment = function (res) { |
| 18 | return res + 1; |
| 19 | } |
| 20 | |
| 21 | var throwStuff = function (res) { |
| 22 | throw new GenericError(res); |
| 23 | } |
| 24 | |
| 25 | var catchStuff = function (res) { |
| 26 | return res.message; |
| 27 | } |
| 28 | |
| 29 | var returnError = function (res) { |
| 30 | return new GenericError(res); |
| 31 | } |
| 32 | |
| 33 | var anythingOkCallback = function (msg) { |
| 34 | return function (res) { |
| 35 | ok(true, msg); |
| 36 | return res; |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | var testEqCallback = function () { |
| 41 | /* |
| 42 | sort of emulate how deferreds work in Twisted |
| 43 | for "convenient" testing |
| 44 | */ |
| 45 | var args = []; |
| 46 | for (var i = 0; i < arguments.length; i++) { |
| 47 | args.push(arguments[i]); |
| 48 | } |
| 49 | return function (res) { |
| 50 | var nargs = args.slice(); |
| 51 | nargs.unshift(res); |
| 52 | is.apply(this, nargs); |
| 53 | return res; |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | var neverHappen = function (d) { |
| 58 | ok(false, "this should never happen"); |
| 59 | } |
| 60 | |
| 61 | /* |
| 62 | Test normal Deferred operation |
| 63 | */ |
| 64 | var d = new Deferred(); |
| 65 | d.addCallback(testEqCallback(1, "pre-deferred callback")); |
| 66 | d.callback(1); |
| 67 | d.addCallback(increment); |
| 68 | d.addCallback(testEqCallback(2, "post-deferred callback")); |
| 69 | d.addCallback(throwStuff); |
| 70 | d.addCallback(neverHappen); |
| 71 | d.addErrback(catchStuff); |
| 72 | d.addCallback(testEqCallback(2, "throw -> err, catch -> success")); |
| 73 | d.addCallback(returnError); |
| 74 | d.addCallback(neverHappen); |
| 75 | d.addErrback(catchStuff); |
| 76 | d.addCallback(testEqCallback(2, "return -> err, catch -> succcess")); |
| 77 | |
| 78 | /* |
| 79 | Test Deferred cancellation |
| 80 | */ |
| 81 | var cancelled = function (d) { |
| 82 | ok(true, "canceller called!"); |
| 83 | } |
| 84 | |
| 85 | var cancelledError = function (res) { |
| 86 | ok(res instanceof CancelledError, "CancelledError here"); |
| 87 | } |
| 88 | |
| 89 | d = new Deferred(cancelled); |
| 90 | d.addCallback(neverHappen); |
| 91 | d.addErrback(cancelledError); |
| 92 | d.cancel(); |
| 93 | |
| 94 | /* |
| 95 | Test succeed / fail |
| 96 | */ |
| 97 | |
| 98 | d = succeed(1).addCallback(testEqCallback(1, "succeed")); |
| 99 | |
| 100 | // default error |
| 101 | d = fail().addCallback(neverHappen); |
| 102 | d = d.addErrback(anythingOkCallback("default fail")); |
| 103 | |
| 104 | // default wrapped error |
| 105 | d = fail("web taco").addCallback(neverHappen).addErrback(catchStuff); |
| 106 | d = d.addCallback(testEqCallback("web taco", "wrapped fail")); |
| 107 | |
| 108 | // default unwrapped error |
| 109 | d = fail(new GenericError("ugh")).addCallback(neverHappen).addErrback(catchStuff); |
| 110 | d = d.addCallback(testEqCallback("ugh", "unwrapped fail")); |
| 111 | |
| 112 | /* |
| 113 | Test deferred dependencies |
| 114 | */ |
| 115 | |
| 116 | var deferredIncrement = function (res) { |
| 117 | var rval = succeed(res); |
| 118 | rval.addCallback(increment); |
| 119 | return rval; |
| 120 | } |
| 121 | |
| 122 | d = succeed(1).addCallback(deferredIncrement); |
| 123 | d = d.addCallback(testEqCallback(2, "dependent deferred succeed")); |
| 124 | |
| 125 | var deferredFailure = function (res) { |
| 126 | return fail(res); |
| 127 | } |
| 128 | |
| 129 | d = succeed("ugh").addCallback(deferredFailure).addErrback(catchStuff); |
| 130 | d = d.addCallback(testEqCallback("ugh", "dependent deferred fail")); |
| 131 | |
| 132 | /* |
| 133 | Test double-calling, double-failing, etc. |
| 134 | */ |
| 135 | try { |
| 136 | succeed(1).callback(2); |
| 137 | neverHappen(); |
| 138 | } catch (e) { |
| 139 | ok(e instanceof AlreadyCalledError, "double-call"); |
| 140 | } |
| 141 | try { |
| 142 | fail(1).errback(2); |
| 143 | neverHappen(); |
| 144 | } catch (e) { |
| 145 | ok(e instanceof AlreadyCalledError, "double-fail"); |
| 146 | } |
| 147 | try { |
| 148 | d = succeed(1); |
| 149 | d.cancel(); |
| 150 | d = d.callback(2); |
| 151 | ok(true, "swallowed one callback, no canceller"); |
| 152 | d.callback(3); |
| 153 | neverHappen(); |
| 154 | } catch (e) { |
| 155 | ok(e instanceof AlreadyCalledError, "swallow cancel"); |
| 156 | } |
| 157 | try { |
| 158 | d = new Deferred(cancelled); |
| 159 | d.cancel(); |
| 160 | d = d.callback(1); |
| 161 | neverHappen(); |
| 162 | } catch (e) { |
| 163 | ok(e instanceof AlreadyCalledError, "non-swallowed cancel"); |
| 164 | } |
| 165 | |
| 166 | /* Test incorrect Deferred usage */ |
| 167 | |
| 168 | d = new Deferred(); |
| 169 | try { |
| 170 | d.callback(new Deferred()); |
| 171 | neverHappen(); |
| 172 | } catch (e) { |
| 173 | ok (e instanceof Error, "deferred not allowed for callback"); |
| 174 | } |
| 175 | d = new Deferred(); |
| 176 | try { |
| 177 | d.errback(new Deferred()); |
| 178 | neverHappen(); |
| 179 | } catch (e) { |
| 180 | ok (e instanceof Error, "deferred not allowed for errback"); |
| 181 | } |
| 182 | |
| 183 | d = new Deferred(); |
| 184 | (new Deferred()).addCallback(function () { return d; }).callback(1); |
| 185 | try { |
| 186 | d.addCallback(function () {}); |
| 187 | neverHappen(); |
| 188 | } catch (e) { |
| 189 | ok (e instanceof Error, "chained deferred not allowed to be re-used"); |
| 190 | } |
| 191 | |
| 192 | /* |
| 193 | evalJSONRequest test |
| 194 | */ |
| 195 | var fakeReq = {"responseText":'[1,2,3,4,"asdf",{"a":["b", "c"]}]'}; |
| 196 | var obj = [1,2,3,4,"asdf",{"a":["b", "c"]}]; |
| 197 | isDeeply(obj, evalJSONRequest(fakeReq), "evalJSONRequest"); |
| 198 | |
| 199 | try { |
| 200 | MochiKit.Async.getXMLHttpRequest(); |
| 201 | ok(true, "getXMLHttpRequest"); |
| 202 | } catch (e) { |
| 203 | ok(false, "no love from getXMLHttpRequest"); |
| 204 | } |
| 205 | |
| 206 | var lock = new DeferredLock(); |
| 207 | var lst = []; |
| 208 | var pushNumber = function (x) { |
| 209 | return function (res) { lst.push(x); } |
| 210 | }; |
| 211 | lock.acquire().addCallback(pushNumber(1)); |
| 212 | is( compare(lst, [1]), 0, "lock acquired" ); |
| 213 | lock.acquire().addCallback(pushNumber(2)); |
| 214 | is( compare(lst, [1]), 0, "lock waiting for release" ); |
| 215 | lock.acquire().addCallback(pushNumber(3)); |
| 216 | is( compare(lst, [1]), 0, "lock waiting for release" ); |
| 217 | lock.release(); |
| 218 | is( compare(lst, [1, 2]), 0, "lock passed on" ); |
| 219 | lock.release(); |
| 220 | is( compare(lst, [1, 2, 3]), 0, "lock passed on" ); |
| 221 | lock.release(); |
| 222 | try { |
| 223 | lock.release(); |
| 224 | ok( false, "over-release didn't raise" ); |
| 225 | } catch (e) { |
| 226 | ok( true, "over-release raised" ); |
| 227 | } |
| 228 | lock.acquire().addCallback(pushNumber(1)); |
| 229 | is( compare(lst, [1, 2, 3, 1]), 0, "lock acquired" ); |
| 230 | lock.release(); |
| 231 | is( compare(lst, [1, 2, 3, 1]), 0, "lock released" ); |
| 232 | |
| 233 | var d = new Deferred(); |
| 234 | lst = []; |
| 235 | d.addCallback(operator.add, 2); |
| 236 | d.addBoth(operator.add, 4); |
| 237 | d.addCallback(bind(lst.push, lst)); |
| 238 | d.callback(1); |
| 239 | is( lst[0], 7, "auto-partial addCallback addBoth" ); |
| 240 | d.addCallback(function () { throw new Error(); }); |
| 241 | ebTest = function(a, b) { |
| 242 | map(bind(lst.push, lst), arguments); |
| 243 | }; |
| 244 | d.addErrback(ebTest, "foo"); |
| 245 | is( lst[1], "foo", "auto-partial errback" ); |
| 246 | is( lst.length, 3, "auto-partial errback" ); |
| 247 | |
| 248 | /* |
| 249 | Test DeferredList |
| 250 | */ |
| 251 | |
| 252 | var callList = [new Deferred(), new Deferred(), new Deferred()]; |
| 253 | callList[0].addCallback(increment); |
| 254 | callList[1].addCallback(increment); |
| 255 | callList[2].addCallback(increment); |
| 256 | var defList = new DeferredList(callList); |
| 257 | ok(defList instanceof Deferred, "DeferredList looks like a Deferred"); |
| 258 | |
| 259 | callList[0].callback(3); |
| 260 | callList[1].callback(5); |
| 261 | callList[2].callback(4); |
| 262 | |
| 263 | defList.addCallback(function (lst) { |
| 264 | is( arrayEqual(lst, [[true, 4], [true, 6], [true, 5]]), 1, |
| 265 | "deferredlist result ok" ); |
| 266 | }); |
| 267 | |
| 268 | /* |
| 269 | Test fireOnOneCallback |
| 270 | */ |
| 271 | |
| 272 | var callList2 = [new Deferred(), new Deferred(), new Deferred()]; |
| 273 | callList2[0].addCallback(increment); |
| 274 | callList2[1].addCallback(increment); |
| 275 | callList2[2].addCallback(increment); |
| 276 | var defList2 = new DeferredList(callList2, true); |
| 277 | callList2[1].callback(5); |
| 278 | callList2[0].callback(3); |
| 279 | callList2[2].callback(4); |
| 280 | |
| 281 | defList2.addCallback(function (lst) { |
| 282 | is( arrayEqual(lst, [1, 6]), 1, "deferredlist fireOnOneCallback ok" ); |
| 283 | }); |
| 284 | |
| 285 | /* |
| 286 | Test fireOnOneErrback |
| 287 | */ |
| 288 | |
| 289 | var callList3 = [new Deferred(), new Deferred(), new Deferred()]; |
| 290 | callList3[0].addCallback(increment); |
| 291 | callList3[1].addCallback(throwStuff); |
| 292 | callList3[2].addCallback(increment); |
| 293 | var defList3 = new DeferredList(callList3, false, true); |
| 294 | defList3.callback = neverHappen; |
| 295 | callList3[0].callback(3); |
| 296 | callList3[1].callback("foo"); |
| 297 | callList3[2].callback(4); |
| 298 | |
| 299 | defList3.addErrback(function (err) { |
| 300 | is( err.message, "foo", "deferredlist fireOnOneErrback ok" ); |
| 301 | }); |
| 302 | |
| 303 | /* |
| 304 | Test consumeErrors |
| 305 | */ |
| 306 | |
| 307 | var callList4 = [new Deferred(), new Deferred(), new Deferred()]; |
| 308 | callList4[0].addCallback(increment); |
| 309 | callList4[1].addCallback(throwStuff); |
| 310 | callList4[2].addCallback(increment); |
| 311 | var defList4 = new DeferredList(callList4, false, false, true); |
| 312 | defList4.addErrback(neverHappen); |
| 313 | callList4[1].addCallback(function (arg) { |
| 314 | is(arg, null, "deferredlist consumeErrors ok" ); |
| 315 | }); |
| 316 | callList4[0].callback(3); |
| 317 | callList4[1].callback("foo"); |
| 318 | callList4[2].callback(4); |
| 319 | |
| 320 | /* |
| 321 | Test gatherResults |
| 322 | */ |
| 323 | |
| 324 | var callList5 = [new Deferred(), new Deferred(), new Deferred()]; |
| 325 | callList5[0].addCallback(increment); |
| 326 | callList5[1].addCallback(increment); |
| 327 | callList5[2].addCallback(increment); |
| 328 | var gatherRet = gatherResults(callList5); |
| 329 | callList5[0].callback(3); |
| 330 | callList5[1].callback(5); |
| 331 | callList5[2].callback(4); |
| 332 | |
| 333 | gatherRet.addCallback(function (lst) { |
| 334 | is( arrayEqual(lst, [4, 6, 5]), 1, |
| 335 | "gatherResults result ok" ); |
| 336 | }); |
| 337 | |
| 338 | /* |
| 339 | Test maybeDeferred |
| 340 | */ |
| 341 | |
| 342 | var maybeDef = maybeDeferred(increment, 4); |
| 343 | maybeDef.addCallback(testEqCallback(5, "maybeDeferred sync ok")); |
| 344 | |
| 345 | var maybeDef2 = deferredIncrement(8); |
| 346 | maybeDef2.addCallback(testEqCallback(9, "maybeDeferred async ok")); |
| 347 | |
| 348 | ok( true, "synchronous test suite finished!"); |
| 349 | |
| 350 | var t = (new Date().getTime()); |
| 351 | SimpleTest.waitForExplicitFinish(); |
| 352 | checkCallLater = function (originalTime) { |
| 353 | is(originalTime, t, "argument passed in OK"); |
| 354 | is(arguments.length, 1, "argument count right"); |
| 355 | }; |
| 356 | var lock = new DeferredLock(); |
| 357 | withLock = function (msg) { |
| 358 | var cb = partial.apply(null, extend(null, arguments, 1)); |
| 359 | var d = lock.acquire().addCallback(cb); |
| 360 | d.addErrback(ok, false, msg); |
| 361 | d.addCallback(function () { |
| 362 | ok(true, msg); |
| 363 | lock.release(); |
| 364 | }); |
| 365 | return d; |
| 366 | } |
| 367 | withLock("callLater", function () { |
| 368 | return callLater(0.05, checkCallLater, t); |
| 369 | }); |
| 370 | withLock("wait", function () { |
| 371 | return wait(0.05, t).addCallback(checkCallLater); |
| 372 | }); |
| 373 | withLock("loadJSONDoc", function () { |
| 374 | var d = loadJSONDoc("test_MochiKit-Async.json"); |
| 375 | d.addCallback(function (doc) { |
| 376 | is(doc.passed, true, "loadJSONDoc passed"); |
| 377 | }); |
| 378 | d.addErrback(function (doc) { |
| 379 | ok(false, "loadJSONDoc failed"); |
| 380 | }); |
| 381 | return d; |
| 382 | }); |
| 383 | lock.acquire().addCallback(function () { |
| 384 | ok(true, "async suite finished"); |
| 385 | SimpleTest.finish(); |
| 386 | }); |
| 387 | |
| 388 | |
| 389 | } catch (err) { |
| 390 | |
| 391 | var s = "test suite failure!\n"; |
| 392 | var o = {}; |
| 393 | var k = null; |
| 394 | for (k in err) { |
| 395 | // ensure unique keys?! |
| 396 | if (!o[k]) { |
| 397 | s += k + ": " + err[k] + "\n"; |
| 398 | o[k] = err[k]; |
| 399 | } |
| 400 | } |
| 401 | ok ( false, s ); |
| 402 | SimpleTest.finish(); |
| 403 | |
| 404 | } |
| 405 | </script> |
| 406 | </pre> |
| 407 | </body> |
| 408 | </html> |