/app/public/js/vendor/backbone/test/collection.js
JavaScript | 1100 lines | 982 code | 111 blank | 7 comment | 10 complexity | 0e311b31d6f6892a06f323652f7b38dd MD5 | raw file
1$(document).ready(function() {
2
3 var a, b, c, d, e, col, otherCol;
4
5 module("Backbone.Collection", _.extend(new Environment, {
6
7 setup: function() {
8 Environment.prototype.setup.apply(this, arguments);
9
10 a = new Backbone.Model({id: 3, label: 'a'});
11 b = new Backbone.Model({id: 2, label: 'b'});
12 c = new Backbone.Model({id: 1, label: 'c'});
13 d = new Backbone.Model({id: 0, label: 'd'});
14 e = null;
15 col = new Backbone.Collection([a,b,c,d]);
16 otherCol = new Backbone.Collection();
17 }
18
19 }));
20
21 test("new and sort", 9, function() {
22 var counter = 0;
23 col.on('sort', function(){ counter++; });
24 equal(col.first(), a, "a should be first");
25 equal(col.last(), d, "d should be last");
26 col.comparator = function(a, b) {
27 return a.id > b.id ? -1 : 1;
28 };
29 col.sort();
30 equal(counter, 1);
31 equal(col.first(), a, "a should be first");
32 equal(col.last(), d, "d should be last");
33 col.comparator = function(model) { return model.id; };
34 col.sort();
35 equal(counter, 2);
36 equal(col.first(), d, "d should be first");
37 equal(col.last(), a, "a should be last");
38 equal(col.length, 4);
39 });
40
41 test("String comparator.", 1, function() {
42 var collection = new Backbone.Collection([
43 {id: 3},
44 {id: 1},
45 {id: 2}
46 ], {comparator: 'id'});
47 deepEqual(collection.pluck('id'), [1, 2, 3]);
48 });
49
50 test("new and parse", 3, function() {
51 var Collection = Backbone.Collection.extend({
52 parse : function(data) {
53 return _.filter(data, function(datum) {
54 return datum.a % 2 === 0;
55 });
56 }
57 });
58 var models = [{a: 1}, {a: 2}, {a: 3}, {a: 4}];
59 var collection = new Collection(models, {parse: true});
60 strictEqual(collection.length, 2);
61 strictEqual(collection.first().get('a'), 2);
62 strictEqual(collection.last().get('a'), 4);
63 });
64
65 test("get", 6, function() {
66 equal(col.get(0), d);
67 equal(col.get(d.clone()), d);
68 equal(col.get(2), b);
69 equal(col.get({id: 1}), c);
70 equal(col.get(c.clone()), c);
71 equal(col.get(col.first().cid), col.first());
72 });
73
74 test("get with non-default ids", 5, function() {
75 var col = new Backbone.Collection();
76 var MongoModel = Backbone.Model.extend({idAttribute: '_id'});
77 var model = new MongoModel({_id: 100});
78 col.add(model);
79 equal(col.get(100), model);
80 equal(col.get(model.cid), model);
81 equal(col.get(model), model);
82 equal(col.get(101), void 0);
83
84 var col2 = new Backbone.Collection();
85 col2.model = MongoModel;
86 col2.add(model.attributes);
87 equal(col2.get(model.clone()), col2.first());
88 });
89
90 test("update index when id changes", 3, function() {
91 var col = new Backbone.Collection();
92 col.add([
93 {id : 0, name : 'one'},
94 {id : 1, name : 'two'}
95 ]);
96 var one = col.get(0);
97 equal(one.get('name'), 'one');
98 one.set({id : 101});
99 equal(col.get(0), null);
100 equal(col.get(101).get('name'), 'one');
101 });
102
103 test("at", 1, function() {
104 equal(col.at(2), c);
105 });
106
107 test("pluck", 1, function() {
108 equal(col.pluck('label').join(' '), 'a b c d');
109 });
110
111 test("add", 10, function() {
112 var added, opts, secondAdded;
113 added = opts = secondAdded = null;
114 e = new Backbone.Model({id: 10, label : 'e'});
115 otherCol.add(e);
116 otherCol.on('add', function() {
117 secondAdded = true;
118 });
119 col.on('add', function(model, collection, options){
120 added = model.get('label');
121 opts = options;
122 });
123 col.add(e, {amazing: true});
124 equal(added, 'e');
125 equal(col.length, 5);
126 equal(col.last(), e);
127 equal(otherCol.length, 1);
128 equal(secondAdded, null);
129 ok(opts.amazing);
130
131 var f = new Backbone.Model({id: 20, label : 'f'});
132 var g = new Backbone.Model({id: 21, label : 'g'});
133 var h = new Backbone.Model({id: 22, label : 'h'});
134 var atCol = new Backbone.Collection([f, g, h]);
135 equal(atCol.length, 3);
136 atCol.add(e, {at: 1});
137 equal(atCol.length, 4);
138 equal(atCol.at(1), e);
139 equal(atCol.last(), h);
140 });
141
142 test("add multiple models", 6, function() {
143 var col = new Backbone.Collection([{at: 0}, {at: 1}, {at: 9}]);
144 col.add([{at: 2}, {at: 3}, {at: 4}, {at: 5}, {at: 6}, {at: 7}, {at: 8}], {at: 2});
145 for (var i = 0; i <= 5; i++) {
146 equal(col.at(i).get('at'), i);
147 }
148 });
149
150 test("add; at should have preference over comparator", 1, function() {
151 var Col = Backbone.Collection.extend({
152 comparator: function(a,b) {
153 return a.id > b.id ? -1 : 1;
154 }
155 });
156
157 var col = new Col([{id: 2}, {id: 3}]);
158 col.add(new Backbone.Model({id: 1}), {at: 1});
159
160 equal(col.pluck('id').join(' '), '3 1 2');
161 });
162
163 test("can't add model to collection twice", function() {
164 var col = new Backbone.Collection([{id: 1}, {id: 2}, {id: 1}, {id: 2}, {id: 3}]);
165 equal(col.pluck('id').join(' '), '1 2 3');
166 });
167
168 test("can't add different model with same id to collection twice", 1, function() {
169 var col = new Backbone.Collection;
170 col.unshift({id: 101});
171 col.add({id: 101});
172 equal(col.length, 1);
173 });
174
175 test("merge in duplicate models with {merge: true}", 3, function() {
176 var col = new Backbone.Collection;
177 col.add([{id: 1, name: 'Moe'}, {id: 2, name: 'Curly'}, {id: 3, name: 'Larry'}]);
178 col.add({id: 1, name: 'Moses'});
179 equal(col.first().get('name'), 'Moe');
180 col.add({id: 1, name: 'Moses'}, {merge: true});
181 equal(col.first().get('name'), 'Moses');
182 col.add({id: 1, name: 'Tim'}, {merge: true, silent: true});
183 equal(col.first().get('name'), 'Tim');
184 });
185
186 test("add model to multiple collections", 10, function() {
187 var counter = 0;
188 var e = new Backbone.Model({id: 10, label : 'e'});
189 e.on('add', function(model, collection) {
190 counter++;
191 equal(e, model);
192 if (counter > 1) {
193 equal(collection, colF);
194 } else {
195 equal(collection, colE);
196 }
197 });
198 var colE = new Backbone.Collection([]);
199 colE.on('add', function(model, collection) {
200 equal(e, model);
201 equal(colE, collection);
202 });
203 var colF = new Backbone.Collection([]);
204 colF.on('add', function(model, collection) {
205 equal(e, model);
206 equal(colF, collection);
207 });
208 colE.add(e);
209 equal(e.collection, colE);
210 colF.add(e);
211 equal(e.collection, colE);
212 });
213
214 test("add model with parse", 1, function() {
215 var Model = Backbone.Model.extend({
216 parse: function(obj) {
217 obj.value += 1;
218 return obj;
219 }
220 });
221
222 var Col = Backbone.Collection.extend({model: Model});
223 var col = new Col;
224 col.add({value: 1}, {parse: true});
225 equal(col.at(0).get('value'), 2);
226 });
227
228 test("add with parse and merge", function() {
229 var Model = Backbone.Model.extend({
230 parse: function (data) {
231 return data.model;
232 }
233 });
234 var collection = new Backbone.Collection();
235 collection.model = Model;
236 collection.add({id: 1});
237 collection.add({model: {id: 1, name: 'Alf'}}, {parse: true, merge: true});
238 equal(collection.first().get('name'), 'Alf');
239 });
240
241 test("add model to collection with sort()-style comparator", 3, function() {
242 var col = new Backbone.Collection;
243 col.comparator = function(a, b) {
244 return a.get('name') < b.get('name') ? -1 : 1;
245 };
246 var tom = new Backbone.Model({name: 'Tom'});
247 var rob = new Backbone.Model({name: 'Rob'});
248 var tim = new Backbone.Model({name: 'Tim'});
249 col.add(tom);
250 col.add(rob);
251 col.add(tim);
252 equal(col.indexOf(rob), 0);
253 equal(col.indexOf(tim), 1);
254 equal(col.indexOf(tom), 2);
255 });
256
257 test("comparator that depends on `this`", 2, function() {
258 var col = new Backbone.Collection;
259 col.negative = function(num) {
260 return -num;
261 };
262 col.comparator = function(a) {
263 return this.negative(a.id);
264 };
265 col.add([{id: 1}, {id: 2}, {id: 3}]);
266 deepEqual(col.pluck('id'), [3, 2, 1]);
267 col.comparator = function(a, b) {
268 return this.negative(b.id) - this.negative(a.id);
269 };
270 col.sort();
271 deepEqual(col.pluck('id'), [1, 2, 3]);
272 });
273
274 test("remove", 5, function() {
275 var removed = null;
276 var otherRemoved = null;
277 col.on('remove', function(model, col, options) {
278 removed = model.get('label');
279 equal(options.index, 3);
280 });
281 otherCol.on('remove', function(model, col, options) {
282 otherRemoved = true;
283 });
284 col.remove(d);
285 equal(removed, 'd');
286 equal(col.length, 3);
287 equal(col.first(), a);
288 equal(otherRemoved, null);
289 });
290
291 test("shift and pop", 2, function() {
292 var col = new Backbone.Collection([{a: 'a'}, {b: 'b'}, {c: 'c'}]);
293 equal(col.shift().get('a'), 'a');
294 equal(col.pop().get('c'), 'c');
295 });
296
297 test("slice", 2, function() {
298 var col = new Backbone.Collection([{a: 'a'}, {b: 'b'}, {c: 'c'}]);
299 var array = col.slice(1, 3);
300 equal(array.length, 2);
301 equal(array[0].get('b'), 'b');
302 });
303
304 test("events are unbound on remove", 3, function() {
305 var counter = 0;
306 var dj = new Backbone.Model();
307 var emcees = new Backbone.Collection([dj]);
308 emcees.on('change', function(){ counter++; });
309 dj.set({name : 'Kool'});
310 equal(counter, 1);
311 emcees.reset([]);
312 equal(dj.collection, undefined);
313 dj.set({name : 'Shadow'});
314 equal(counter, 1);
315 });
316
317 test("remove in multiple collections", 7, function() {
318 var modelData = {
319 id : 5,
320 title : 'Othello'
321 };
322 var passed = false;
323 var e = new Backbone.Model(modelData);
324 var f = new Backbone.Model(modelData);
325 f.on('remove', function() {
326 passed = true;
327 });
328 var colE = new Backbone.Collection([e]);
329 var colF = new Backbone.Collection([f]);
330 ok(e != f);
331 ok(colE.length === 1);
332 ok(colF.length === 1);
333 colE.remove(e);
334 equal(passed, false);
335 ok(colE.length === 0);
336 colF.remove(e);
337 ok(colF.length === 0);
338 equal(passed, true);
339 });
340
341 test("remove same model in multiple collection", 16, function() {
342 var counter = 0;
343 var e = new Backbone.Model({id: 5, title: 'Othello'});
344 e.on('remove', function(model, collection) {
345 counter++;
346 equal(e, model);
347 if (counter > 1) {
348 equal(collection, colE);
349 } else {
350 equal(collection, colF);
351 }
352 });
353 var colE = new Backbone.Collection([e]);
354 colE.on('remove', function(model, collection) {
355 equal(e, model);
356 equal(colE, collection);
357 });
358 var colF = new Backbone.Collection([e]);
359 colF.on('remove', function(model, collection) {
360 equal(e, model);
361 equal(colF, collection);
362 });
363 equal(colE, e.collection);
364 colF.remove(e);
365 ok(colF.length === 0);
366 ok(colE.length === 1);
367 equal(counter, 1);
368 equal(colE, e.collection);
369 colE.remove(e);
370 equal(null, e.collection);
371 ok(colE.length === 0);
372 equal(counter, 2);
373 });
374
375 test("model destroy removes from all collections", 3, function() {
376 var e = new Backbone.Model({id: 5, title: 'Othello'});
377 e.sync = function(method, model, options) { options.success(); };
378 var colE = new Backbone.Collection([e]);
379 var colF = new Backbone.Collection([e]);
380 e.destroy();
381 ok(colE.length === 0);
382 ok(colF.length === 0);
383 equal(undefined, e.collection);
384 });
385
386 test("Colllection: non-persisted model destroy removes from all collections", 3, function() {
387 var e = new Backbone.Model({title: 'Othello'});
388 e.sync = function(method, model, options) { throw "should not be called"; };
389 var colE = new Backbone.Collection([e]);
390 var colF = new Backbone.Collection([e]);
391 e.destroy();
392 ok(colE.length === 0);
393 ok(colF.length === 0);
394 equal(undefined, e.collection);
395 });
396
397 test("fetch", 4, function() {
398 var collection = new Backbone.Collection;
399 collection.url = '/test';
400 collection.fetch();
401 equal(this.syncArgs.method, 'read');
402 equal(this.syncArgs.model, collection);
403 equal(this.syncArgs.options.parse, true);
404
405 collection.fetch({parse: false});
406 equal(this.syncArgs.options.parse, false);
407 });
408
409 test("fetch with an error response triggers an error event", 1, function () {
410 var collection = new Backbone.Collection();
411 collection.on('error', function () {
412 ok(true);
413 });
414 collection.sync = function (method, model, options) { options.error(); };
415 collection.fetch();
416 });
417
418 test("ensure fetch only parses once", 1, function() {
419 var collection = new Backbone.Collection;
420 var counter = 0;
421 collection.parse = function(models) {
422 counter++;
423 return models;
424 };
425 collection.url = '/test';
426 collection.fetch();
427 this.syncArgs.options.success();
428 equal(counter, 1);
429 });
430
431 test("create", 4, function() {
432 var collection = new Backbone.Collection;
433 collection.url = '/test';
434 var model = collection.create({label: 'f'}, {wait: true});
435 equal(this.syncArgs.method, 'create');
436 equal(this.syncArgs.model, model);
437 equal(model.get('label'), 'f');
438 equal(model.collection, collection);
439 });
440
441 test("create with validate:true enforces validation", 2, function() {
442 var ValidatingModel = Backbone.Model.extend({
443 validate: function(attrs) {
444 return "fail";
445 }
446 });
447 var ValidatingCollection = Backbone.Collection.extend({
448 model: ValidatingModel
449 });
450 var col = new ValidatingCollection();
451 col.on('invalid', function (collection, attrs, options) {
452 equal(options.validationError, 'fail');
453 });
454 equal(col.create({"foo":"bar"}, {validate:true}), false);
455 });
456
457 test("a failing create returns model with errors", function() {
458 var ValidatingModel = Backbone.Model.extend({
459 validate: function(attrs) {
460 return "fail";
461 }
462 });
463 var ValidatingCollection = Backbone.Collection.extend({
464 model: ValidatingModel
465 });
466 var col = new ValidatingCollection();
467 var m = col.create({"foo":"bar"});
468 equal(m.validationError, 'fail');
469 equal(col.length, 1);
470 });
471
472 test("initialize", 1, function() {
473 var Collection = Backbone.Collection.extend({
474 initialize: function() {
475 this.one = 1;
476 }
477 });
478 var coll = new Collection;
479 equal(coll.one, 1);
480 });
481
482 test("toJSON", 1, function() {
483 equal(JSON.stringify(col), '[{"id":3,"label":"a"},{"id":2,"label":"b"},{"id":1,"label":"c"},{"id":0,"label":"d"}]');
484 });
485
486 test("where and findWhere", 8, function() {
487 var model = new Backbone.Model({a: 1});
488 var coll = new Backbone.Collection([
489 model,
490 {a: 1},
491 {a: 1, b: 2},
492 {a: 2, b: 2},
493 {a: 3}
494 ]);
495 equal(coll.where({a: 1}).length, 3);
496 equal(coll.where({a: 2}).length, 1);
497 equal(coll.where({a: 3}).length, 1);
498 equal(coll.where({b: 1}).length, 0);
499 equal(coll.where({b: 2}).length, 2);
500 equal(coll.where({a: 1, b: 2}).length, 1);
501 equal(coll.findWhere({a: 1}), model);
502 equal(coll.findWhere({a: 4}), void 0);
503 });
504
505 test("Underscore methods", 13, function() {
506 equal(col.map(function(model){ return model.get('label'); }).join(' '), 'a b c d');
507 equal(col.any(function(model){ return model.id === 100; }), false);
508 equal(col.any(function(model){ return model.id === 0; }), true);
509 equal(col.indexOf(b), 1);
510 equal(col.size(), 4);
511 equal(col.rest().length, 3);
512 ok(!_.include(col.rest(), a));
513 ok(_.include(col.rest(), d));
514 ok(!col.isEmpty());
515 ok(!_.include(col.without(d), d));
516 equal(col.max(function(model){ return model.id; }).id, 3);
517 equal(col.min(function(model){ return model.id; }).id, 0);
518 deepEqual(col.chain()
519 .filter(function(o){ return o.id % 2 === 0; })
520 .map(function(o){ return o.id * 2; })
521 .value(),
522 [4, 0]);
523 });
524
525 test("sortedIndex", function () {
526 var model = new Backbone.Model({key: 2});
527 var collection = new (Backbone.Collection.extend({
528 comparator: 'key'
529 }))([model, {key: 1}]);
530 equal(collection.sortedIndex(model), 1);
531 equal(collection.sortedIndex(model, 'key'), 1);
532 equal(collection.sortedIndex(model, function (model) {
533 return model.get('key');
534 }), 1);
535 });
536
537 test("reset", 12, function() {
538 var resetCount = 0;
539 var models = col.models;
540 col.on('reset', function() { resetCount += 1; });
541 col.reset([]);
542 equal(resetCount, 1);
543 equal(col.length, 0);
544 equal(col.last(), null);
545 col.reset(models);
546 equal(resetCount, 2);
547 equal(col.length, 4);
548 equal(col.last(), d);
549 col.reset(_.map(models, function(m){ return m.attributes; }));
550 equal(resetCount, 3);
551 equal(col.length, 4);
552 ok(col.last() !== d);
553 ok(_.isEqual(col.last().attributes, d.attributes));
554 col.reset();
555 equal(col.length, 0);
556 equal(resetCount, 4);
557 });
558
559 test ("reset with different values", function(){
560 var col = new Backbone.Collection({id: 1});
561 col.reset({id: 1, a: 1});
562 equal(col.get(1).get('a'), 1);
563 });
564
565 test("same references in reset", function() {
566 var model = new Backbone.Model({id: 1});
567 var collection = new Backbone.Collection({id: 1});
568 collection.reset(model);
569 equal(collection.get(1), model);
570 });
571
572 test("reset passes caller options", 3, function() {
573 var Model = Backbone.Model.extend({
574 initialize: function(attrs, options) {
575 this.model_parameter = options.model_parameter;
576 }
577 });
578 var col = new (Backbone.Collection.extend({ model: Model }))();
579 col.reset([{ astring: "green", anumber: 1 }, { astring: "blue", anumber: 2 }], { model_parameter: 'model parameter' });
580 equal(col.length, 2);
581 col.each(function(model) {
582 equal(model.model_parameter, 'model parameter');
583 });
584 });
585
586 test("trigger custom events on models", 1, function() {
587 var fired = null;
588 a.on("custom", function() { fired = true; });
589 a.trigger("custom");
590 equal(fired, true);
591 });
592
593 test("add does not alter arguments", 2, function(){
594 var attrs = {};
595 var models = [attrs];
596 new Backbone.Collection().add(models);
597 equal(models.length, 1);
598 ok(attrs === models[0]);
599 });
600
601 test("#714: access `model.collection` in a brand new model.", 2, function() {
602 var collection = new Backbone.Collection;
603 collection.url = '/test';
604 var Model = Backbone.Model.extend({
605 set: function(attrs) {
606 equal(attrs.prop, 'value');
607 equal(this.collection, collection);
608 return this;
609 }
610 });
611 collection.model = Model;
612 collection.create({prop: 'value'});
613 });
614
615 test("#574, remove its own reference to the .models array.", 2, function() {
616 var col = new Backbone.Collection([
617 {id: 1}, {id: 2}, {id: 3}, {id: 4}, {id: 5}, {id: 6}
618 ]);
619 equal(col.length, 6);
620 col.remove(col.models);
621 equal(col.length, 0);
622 });
623
624 test("#861, adding models to a collection which do not pass validation, with validate:true", function() {
625 var Model = Backbone.Model.extend({
626 validate: function(attrs) {
627 if (attrs.id == 3) return "id can't be 3";
628 }
629 });
630
631 var Collection = Backbone.Collection.extend({
632 model: Model
633 });
634
635 var collection = new Collection;
636 collection.on("error", function() { ok(true); });
637
638 collection.add([{id: 1}, {id: 2}, {id: 3}, {id: 4}, {id: 5}, {id: 6}], {validate:true});
639 deepEqual(collection.pluck('id'), [1, 2, 4, 5, 6]);
640 });
641
642 test("Invalid models are discarded with validate:true.", 5, function() {
643 var collection = new Backbone.Collection;
644 collection.on('test', function() { ok(true); });
645 collection.model = Backbone.Model.extend({
646 validate: function(attrs){ if (!attrs.valid) return 'invalid'; }
647 });
648 var model = new collection.model({id: 1, valid: true});
649 collection.add([model, {id: 2}], {validate:true});
650 model.trigger('test');
651 ok(collection.get(model.cid));
652 ok(collection.get(1));
653 ok(!collection.get(2));
654 equal(collection.length, 1);
655 });
656
657 test("multiple copies of the same model", 3, function() {
658 var col = new Backbone.Collection();
659 var model = new Backbone.Model();
660 col.add([model, model]);
661 equal(col.length, 1);
662 col.add([{id: 1}, {id: 1}]);
663 equal(col.length, 2);
664 equal(col.last().id, 1);
665 });
666
667 test("#964 - collection.get return inconsistent", 2, function() {
668 var c = new Backbone.Collection();
669 ok(c.get(null) === undefined);
670 ok(c.get() === undefined);
671 });
672
673 test("#1112 - passing options.model sets collection.model", 2, function() {
674 var Model = Backbone.Model.extend({});
675 var c = new Backbone.Collection([{id: 1}], {model: Model});
676 ok(c.model === Model);
677 ok(c.at(0) instanceof Model);
678 });
679
680 test("null and undefined are invalid ids.", 2, function() {
681 var model = new Backbone.Model({id: 1});
682 var collection = new Backbone.Collection([model]);
683 model.set({id: null});
684 ok(!collection.get('null'));
685 model.set({id: 1});
686 model.set({id: undefined});
687 ok(!collection.get('undefined'));
688 });
689
690 test("falsy comparator", 4, function(){
691 var Col = Backbone.Collection.extend({
692 comparator: function(model){ return model.id; }
693 });
694 var col = new Col();
695 var colFalse = new Col(null, {comparator: false});
696 var colNull = new Col(null, {comparator: null});
697 var colUndefined = new Col(null, {comparator: undefined});
698 ok(col.comparator);
699 ok(!colFalse.comparator);
700 ok(!colNull.comparator);
701 ok(colUndefined.comparator);
702 });
703
704 test("#1355 - `options` is passed to success callbacks", 2, function(){
705 var m = new Backbone.Model({x:1});
706 var col = new Backbone.Collection();
707 var opts = {
708 success: function(collection, resp, options){
709 ok(options);
710 }
711 };
712 col.sync = m.sync = function( method, collection, options ){
713 options.success(collection, [], options);
714 };
715 col.fetch(opts);
716 col.create(m, opts);
717 });
718
719 test("#1412 - Trigger 'request' and 'sync' events.", 4, function() {
720 var collection = new Backbone.Collection;
721 collection.url = '/test';
722 Backbone.ajax = function(settings){ settings.success(); };
723
724 collection.on('request', function(obj, xhr, options) {
725 ok(obj === collection, "collection has correct 'request' event after fetching");
726 });
727 collection.on('sync', function(obj, response, options) {
728 ok(obj === collection, "collection has correct 'sync' event after fetching");
729 });
730 collection.fetch();
731 collection.off();
732
733 collection.on('request', function(obj, xhr, options) {
734 ok(obj === collection.get(1), "collection has correct 'request' event after one of its models save");
735 });
736 collection.on('sync', function(obj, response, options) {
737 ok(obj === collection.get(1), "collection has correct 'sync' event after one of its models save");
738 });
739 collection.create({id: 1});
740 collection.off();
741 });
742
743 test("#1447 - create with wait adds model.", 1, function() {
744 var collection = new Backbone.Collection;
745 var model = new Backbone.Model;
746 model.sync = function(method, model, options){ options.success(); };
747 collection.on('add', function(){ ok(true); });
748 collection.create(model, {wait: true});
749 });
750
751 test("#1448 - add sorts collection after merge.", 1, function() {
752 var collection = new Backbone.Collection([
753 {id: 1, x: 1},
754 {id: 2, x: 2}
755 ]);
756 collection.comparator = function(model){ return model.get('x'); };
757 collection.add({id: 1, x: 3}, {merge: true});
758 deepEqual(collection.pluck('id'), [2, 1]);
759 });
760
761 test("#1655 - groupBy can be used with a string argument.", 3, function() {
762 var collection = new Backbone.Collection([{x: 1}, {x: 2}]);
763 var grouped = collection.groupBy('x');
764 strictEqual(_.keys(grouped).length, 2);
765 strictEqual(grouped[1][0].get('x'), 1);
766 strictEqual(grouped[2][0].get('x'), 2);
767 });
768
769 test("#1655 - sortBy can be used with a string argument.", 1, function() {
770 var collection = new Backbone.Collection([{x: 3}, {x: 1}, {x: 2}]);
771 var values = _.map(collection.sortBy('x'), function(model) {
772 return model.get('x');
773 });
774 deepEqual(values, [1, 2, 3]);
775 });
776
777 test("#1604 - Removal during iteration.", 0, function() {
778 var collection = new Backbone.Collection([{}, {}]);
779 collection.on('add', function() {
780 collection.at(0).destroy();
781 });
782 collection.add({}, {at: 0});
783 });
784
785 test("#1638 - `sort` during `add` triggers correctly.", function() {
786 var collection = new Backbone.Collection;
787 collection.comparator = function(model) { return model.get('x'); };
788 var added = [];
789 collection.on('add', function(model) {
790 model.set({x: 3});
791 collection.sort();
792 added.push(model.id);
793 });
794 collection.add([{id: 1, x: 1}, {id: 2, x: 2}]);
795 deepEqual(added, [1, 2]);
796 });
797
798 test("fetch parses models by default", 1, function() {
799 var model = {};
800 var Collection = Backbone.Collection.extend({
801 url: 'test',
802 model: Backbone.Model.extend({
803 parse: function(resp) {
804 strictEqual(resp, model);
805 }
806 })
807 });
808 new Collection().fetch();
809 this.ajaxSettings.success([model]);
810 });
811
812 test("`sort` shouldn't always fire on `add`", 1, function() {
813 var c = new Backbone.Collection([{id: 1}, {id: 2}, {id: 3}], {
814 comparator: 'id'
815 });
816 c.sort = function(){ ok(true); };
817 c.add([]);
818 c.add({id: 1});
819 c.add([{id: 2}, {id: 3}]);
820 c.add({id: 4});
821 });
822
823 test("#1407 parse option on constructor parses collection and models", 2, function() {
824 var model = {
825 namespace : [{id: 1}, {id:2}]
826 };
827 var Collection = Backbone.Collection.extend({
828 model: Backbone.Model.extend({
829 parse: function(model) {
830 model.name = 'test';
831 return model;
832 }
833 }),
834 parse: function(model) {
835 return model.namespace;
836 }
837 });
838 var c = new Collection(model, {parse:true});
839
840 equal(c.length, 2);
841 equal(c.at(0).get('name'), 'test');
842 });
843
844 test("#1407 parse option on reset parses collection and models", 2, function() {
845 var model = {
846 namespace : [{id: 1}, {id:2}]
847 };
848 var Collection = Backbone.Collection.extend({
849 model: Backbone.Model.extend({
850 parse: function(model) {
851 model.name = 'test';
852 return model;
853 }
854 }),
855 parse: function(model) {
856 return model.namespace;
857 }
858 });
859 var c = new Collection();
860 c.reset(model, {parse:true});
861
862 equal(c.length, 2);
863 equal(c.at(0).get('name'), 'test');
864 });
865
866
867 test("Reset includes previous models in triggered event.", 1, function() {
868 var model = new Backbone.Model();
869 var collection = new Backbone.Collection([model])
870 .on('reset', function(collection, options) {
871 deepEqual(options.previousModels, [model]);
872 });
873 collection.reset([]);
874 });
875
876 test("set", function() {
877 var m1 = new Backbone.Model();
878 var m2 = new Backbone.Model({id: 2});
879 var m3 = new Backbone.Model();
880 var c = new Backbone.Collection([m1, m2]);
881
882 // Test add/change/remove events
883 c.on('add', function(model) {
884 strictEqual(model, m3);
885 });
886 c.on('change', function(model) {
887 strictEqual(model, m2);
888 });
889 c.on('remove', function(model) {
890 strictEqual(model, m1);
891 });
892
893 // remove: false doesn't remove any models
894 c.set([], {remove: false});
895 strictEqual(c.length, 2);
896
897 // add: false doesn't add any models
898 c.set([m1, m2, m3], {add: false});
899 strictEqual(c.length, 2);
900
901 // merge: false doesn't change any models
902 c.set([m1, {id: 2, a: 1}], {merge: false});
903 strictEqual(m2.get('a'), void 0);
904
905 // add: false, remove: false only merges existing models
906 c.set([m1, {id: 2, a: 0}, m3, {id: 4}], {add: false, remove: false});
907 strictEqual(c.length, 2);
908 strictEqual(m2.get('a'), 0);
909
910 // default options add/remove/merge as appropriate
911 c.set([{id: 2, a: 1}, m3]);
912 strictEqual(c.length, 2);
913 strictEqual(m2.get('a'), 1);
914
915 // Test removing models not passing an argument
916 c.off('remove').on('remove', function(model) {
917 ok(model === m2 || model === m3);
918 });
919 c.set([]);
920 strictEqual(c.length, 0);
921 });
922
923 test("set with only cids", 3, function() {
924 var m1 = new Backbone.Model;
925 var m2 = new Backbone.Model;
926 var c = new Backbone.Collection;
927 c.set([m1, m2]);
928 equal(c.length, 2);
929 c.set([m1]);
930 equal(c.length, 1);
931 c.set([m1, m1, m1, m2, m2], {remove: false});
932 equal(c.length, 2);
933 });
934
935 test("set with only idAttribute", 3, function() {
936 var m1 = { _id: 1 };
937 var m2 = { _id: 2 };
938 var col = Backbone.Collection.extend({
939 model: Backbone.Model.extend({
940 idAttribute: '_id'
941 })
942 });
943 var c = new col;
944 c.set([m1, m2]);
945 equal(c.length, 2);
946 c.set([m1]);
947 equal(c.length, 1);
948 c.set([m1, m1, m1, m2, m2], {remove: false});
949 equal(c.length, 2);
950 });
951
952 test("set + merge with default values defined", function() {
953 var Model = Backbone.Model.extend({
954 defaults: {
955 key: 'value'
956 }
957 });
958 var m = new Model({id: 1});
959 var col = new Backbone.Collection([m], {model: Model});
960 equal(col.first().get('key'), 'value');
961
962 col.set({id: 1, key: 'other'});
963 equal(col.first().get('key'), 'other');
964
965 col.set({id: 1, other: 'value'});
966 equal(col.first().get('key'), 'value');
967 equal(col.length, 1);
968 });
969
970 test("`set` and model level `parse`", function() {
971 var Model = Backbone.Model.extend({
972 parse: function (res) { return res.model; }
973 });
974 var Collection = Backbone.Collection.extend({
975 model: Model,
976 parse: function (res) { return res.models; }
977 });
978 var model = new Model({id: 1});
979 var collection = new Collection(model);
980 collection.set({models: [
981 {model: {id: 1}},
982 {model: {id: 2}}
983 ]}, {parse: true});
984 equal(collection.first(), model);
985 });
986
987 test("`set` data is only parsed once", function() {
988 var collection = new Backbone.Collection();
989 collection.model = Backbone.Model.extend({
990 parse: function (data) {
991 equal(data.parsed, void 0);
992 data.parsed = true;
993 return data;
994 }
995 });
996 collection.set({}, {parse: true});
997 });
998
999 test("#1894 - Push should not trigger a sort", 0, function() {
1000 var Collection = Backbone.Collection.extend({
1001 comparator: 'id',
1002 sort: function() {
1003 ok(false);
1004 }
1005 });
1006 new Collection().push({id: 1});
1007 });
1008
1009 test("`set` with non-normal id", function() {
1010 var Collection = Backbone.Collection.extend({
1011 model: Backbone.Model.extend({idAttribute: '_id'})
1012 });
1013 var collection = new Collection({_id: 1});
1014 collection.set([{_id: 1, a: 1}], {add: false});
1015 equal(collection.first().get('a'), 1);
1016 });
1017
1018 test("#1894 - `sort` can optionally be turned off", 0, function() {
1019 var Collection = Backbone.Collection.extend({
1020 comparator: 'id',
1021 sort: function() { ok(true); }
1022 });
1023 new Collection().add({id: 1}, {sort: false});
1024 });
1025
1026 test("#1915 - `parse` data in the right order in `set`", function() {
1027 var collection = new (Backbone.Collection.extend({
1028 parse: function (data) {
1029 strictEqual(data.status, 'ok');
1030 return data.data;
1031 }
1032 }));
1033 var res = {status: 'ok', data:[{id: 1}]};
1034 collection.set(res, {parse: true});
1035 });
1036
1037 asyncTest("#1939 - `parse` is passed `options`", 1, function () {
1038 var collection = new (Backbone.Collection.extend({
1039 url: '/',
1040 parse: function (data, options) {
1041 strictEqual(options.xhr.someHeader, 'headerValue');
1042 return data;
1043 }
1044 }));
1045 var ajax = Backbone.ajax;
1046 Backbone.ajax = function (params) {
1047 _.defer(params.success);
1048 return {someHeader: 'headerValue'};
1049 };
1050 collection.fetch({
1051 success: function () { start(); }
1052 });
1053 Backbone.ajax = ajax;
1054 });
1055
1056 test("`add` only `sort`s when necessary", 2, function () {
1057 var collection = new (Backbone.Collection.extend({
1058 comparator: 'a'
1059 }))([{id: 1}, {id: 2}, {id: 3}]);
1060 collection.on('sort', function () { ok(true); });
1061 collection.add({id: 4}); // do sort, new model
1062 collection.add({id: 1, a: 1}, {merge: true}); // do sort, comparator change
1063 collection.add({id: 1, b: 1}, {merge: true}); // don't sort, no comparator change
1064 collection.add({id: 1, a: 1}, {merge: true}); // don't sort, no comparator change
1065 collection.add(collection.models); // don't sort, nothing new
1066 collection.add(collection.models, {merge: true}); // don't sort
1067 });
1068
1069 test("`add` only `sort`s when necessary with comparator function", 3, function () {
1070 var collection = new (Backbone.Collection.extend({
1071 comparator: function(a, b) {
1072 return a.get('a') > b.get('a') ? 1 : (a.get('a') < b.get('a') ? -1 : 0);
1073 }
1074 }))([{id: 1}, {id: 2}, {id: 3}]);
1075 collection.on('sort', function () { ok(true); });
1076 collection.add({id: 4}); // do sort, new model
1077 collection.add({id: 1, a: 1}, {merge: true}); // do sort, model change
1078 collection.add({id: 1, b: 1}, {merge: true}); // do sort, model change
1079 collection.add({id: 1, a: 1}, {merge: true}); // don't sort, no model change
1080 collection.add(collection.models); // don't sort, nothing new
1081 collection.add(collection.models, {merge: true}); // don't sort
1082 });
1083
1084 test("Attach options to collection.", 3, function() {
1085 var url = '/somewhere';
1086 var model = new Backbone.Model;
1087 var comparator = function(){};
1088
1089 var collection = new Backbone.Collection([], {
1090 url: url,
1091 model: model,
1092 comparator: comparator
1093 });
1094
1095 strictEqual(collection.url, url);
1096 ok(collection.model === model);
1097 ok(collection.comparator === comparator);
1098 });
1099
1100});