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test/model.js   B

Complexity

Conditions 1
Paths 4

Size

Total Lines 1418

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 1
c 1
b 0
f 0
nc 4
nop 0
dl 0
loc 1418
rs 8.2857

How to fix   Long Method   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

1
(function() {
2
3
  var ProxyModel = Backbone.Model.extend();
4
  var Klass = Backbone.Collection.extend({
5
    url: function() { return '/collection'; }
6
  });
7
  var doc, collection;
8
9
  QUnit.module('Backbone.Model', {
10
11
    beforeEach: function(assert) {
12
      doc = new ProxyModel({
13
        id: '1-the-tempest',
14
        title: 'The Tempest',
15
        author: 'Bill Shakespeare',
16
        length: 123
17
      });
18
      collection = new Klass();
19
      collection.add(doc);
20
    }
21
22
  });
23
24
  QUnit.test('initialize', function(assert) {
25
    assert.expect(3);
26
    var Model = Backbone.Model.extend({
27
      initialize: function() {
28
        this.one = 1;
29
        assert.equal(this.collection, collection);
30
      }
31
    });
32
    var model = new Model({}, {collection: collection});
33
    assert.equal(model.one, 1);
34
    assert.equal(model.collection, collection);
35
  });
36
37
  QUnit.test('Object.prototype properties are overridden by attributes', function(assert) {
38
    assert.expect(1);
39
    var model = new Backbone.Model({hasOwnProperty: true});
40
    assert.equal(model.get('hasOwnProperty'), true);
41
  });
42
43
  QUnit.test('initialize with attributes and options', function(assert) {
44
    assert.expect(1);
45
    var Model = Backbone.Model.extend({
46
      initialize: function(attributes, options) {
47
        this.one = options.one;
48
      }
49
    });
50
    var model = new Model({}, {one: 1});
51
    assert.equal(model.one, 1);
52
  });
53
54
  QUnit.test('initialize with parsed attributes', function(assert) {
55
    assert.expect(1);
56
    var Model = Backbone.Model.extend({
57
      parse: function(attrs) {
58
        attrs.value += 1;
59
        return attrs;
60
      }
61
    });
62
    var model = new Model({value: 1}, {parse: true});
63
    assert.equal(model.get('value'), 2);
64
  });
65
66
  QUnit.test('parse can return null', function(assert) {
67
    assert.expect(1);
68
    var Model = Backbone.Model.extend({
69
      parse: function(attrs) {
70
        attrs.value += 1;
71
        return null;
72
      }
73
    });
74
    var model = new Model({value: 1}, {parse: true});
75
    assert.equal(JSON.stringify(model.toJSON()), '{}');
76
  });
77
78
  QUnit.test('url', function(assert) {
79
    assert.expect(3);
80
    doc.urlRoot = null;
81
    assert.equal(doc.url(), '/collection/1-the-tempest');
82
    doc.collection.url = '/collection/';
83
    assert.equal(doc.url(), '/collection/1-the-tempest');
84
    doc.collection = null;
85
    assert.raises(function() { doc.url(); });
86
    doc.collection = collection;
87
  });
88
89
  QUnit.test('url when using urlRoot, and uri encoding', function(assert) {
90
    assert.expect(2);
91
    var Model = Backbone.Model.extend({
92
      urlRoot: '/collection'
93
    });
94
    var model = new Model();
95
    assert.equal(model.url(), '/collection');
96
    model.set({id: '+1+'});
97
    assert.equal(model.url(), '/collection/%2B1%2B');
98
  });
99
100
  QUnit.test('url when using urlRoot as a function to determine urlRoot at runtime', function(assert) {
101
    assert.expect(2);
102
    var Model = Backbone.Model.extend({
103
      urlRoot: function() {
104
        return '/nested/' + this.get('parentId') + '/collection';
105
      }
106
    });
107
108
    var model = new Model({parentId: 1});
109
    assert.equal(model.url(), '/nested/1/collection');
110
    model.set({id: 2});
111
    assert.equal(model.url(), '/nested/1/collection/2');
112
  });
113
114
  QUnit.test('underscore methods', function(assert) {
115
    assert.expect(5);
116
    var model = new Backbone.Model({foo: 'a', bar: 'b', baz: 'c'});
117
    var model2 = model.clone();
118
    assert.deepEqual(model.keys(), ['foo', 'bar', 'baz']);
119
    assert.deepEqual(model.values(), ['a', 'b', 'c']);
120
    assert.deepEqual(model.invert(), {a: 'foo', b: 'bar', c: 'baz'});
121
    assert.deepEqual(model.pick('foo', 'baz'), {foo: 'a', baz: 'c'});
122
    assert.deepEqual(model.omit('foo', 'bar'), {baz: 'c'});
123
  });
124
125
  QUnit.test('chain', function(assert) {
126
    var model = new Backbone.Model({a: 0, b: 1, c: 2});
127
    assert.deepEqual(model.chain().pick('a', 'b', 'c').values().compact().value(), [1, 2]);
128
  });
129
130
  QUnit.test('clone', function(assert) {
131
    assert.expect(10);
132
    var a = new Backbone.Model({foo: 1, bar: 2, baz: 3});
133
    var b = a.clone();
134
    assert.equal(a.get('foo'), 1);
135
    assert.equal(a.get('bar'), 2);
136
    assert.equal(a.get('baz'), 3);
137
    assert.equal(b.get('foo'), a.get('foo'), 'Foo should be the same on the clone.');
138
    assert.equal(b.get('bar'), a.get('bar'), 'Bar should be the same on the clone.');
139
    assert.equal(b.get('baz'), a.get('baz'), 'Baz should be the same on the clone.');
140
    a.set({foo: 100});
141
    assert.equal(a.get('foo'), 100);
142
    assert.equal(b.get('foo'), 1, 'Changing a parent attribute does not change the clone.');
143
144
    var foo = new Backbone.Model({p: 1});
145
    var bar = new Backbone.Model({p: 2});
146
    bar.set(foo.clone().attributes, {unset: true});
147
    assert.equal(foo.get('p'), 1);
148
    assert.equal(bar.get('p'), undefined);
149
  });
150
151
  QUnit.test('isNew', function(assert) {
152
    assert.expect(6);
153
    var a = new Backbone.Model({foo: 1, bar: 2, baz: 3});
154
    assert.ok(a.isNew(), 'it should be new');
155
    a = new Backbone.Model({foo: 1, bar: 2, baz: 3, id: -5});
156
    assert.ok(!a.isNew(), 'any defined ID is legal, negative or positive');
157
    a = new Backbone.Model({foo: 1, bar: 2, baz: 3, id: 0});
158
    assert.ok(!a.isNew(), 'any defined ID is legal, including zero');
159
    assert.ok(new Backbone.Model().isNew(), 'is true when there is no id');
160
    assert.ok(!new Backbone.Model({id: 2}).isNew(), 'is false for a positive integer');
161
    assert.ok(!new Backbone.Model({id: -5}).isNew(), 'is false for a negative integer');
162
  });
163
164
  QUnit.test('get', function(assert) {
165
    assert.expect(2);
166
    assert.equal(doc.get('title'), 'The Tempest');
167
    assert.equal(doc.get('author'), 'Bill Shakespeare');
168
  });
169
170
  QUnit.test('escape', function(assert) {
171
    assert.expect(5);
172
    assert.equal(doc.escape('title'), 'The Tempest');
173
    doc.set({audience: 'Bill & Bob'});
174
    assert.equal(doc.escape('audience'), 'Bill & Bob');
175
    doc.set({audience: 'Tim > Joan'});
176
    assert.equal(doc.escape('audience'), 'Tim > Joan');
177
    doc.set({audience: 10101});
178
    assert.equal(doc.escape('audience'), '10101');
179
    doc.unset('audience');
180
    assert.equal(doc.escape('audience'), '');
181
  });
182
183
  QUnit.test('has', function(assert) {
184
    assert.expect(10);
185
    var model = new Backbone.Model();
186
187
    assert.strictEqual(model.has('name'), false);
188
189
    model.set({
190
      '0': 0,
191
      '1': 1,
192
      'true': true,
193
      'false': false,
194
      'empty': '',
195
      'name': 'name',
196
      'null': null,
197
      'undefined': undefined
198
    });
199
200
    assert.strictEqual(model.has('0'), true);
201
    assert.strictEqual(model.has('1'), true);
202
    assert.strictEqual(model.has('true'), true);
203
    assert.strictEqual(model.has('false'), true);
204
    assert.strictEqual(model.has('empty'), true);
205
    assert.strictEqual(model.has('name'), true);
206
207
    model.unset('name');
208
209
    assert.strictEqual(model.has('name'), false);
210
    assert.strictEqual(model.has('null'), false);
211
    assert.strictEqual(model.has('undefined'), false);
212
  });
213
214
  QUnit.test('matches', function(assert) {
215
    assert.expect(4);
216
    var model = new Backbone.Model();
217
218
    assert.strictEqual(model.matches({name: 'Jonas', cool: true}), false);
219
220
    model.set({name: 'Jonas', cool: true});
221
222
    assert.strictEqual(model.matches({name: 'Jonas'}), true);
223
    assert.strictEqual(model.matches({name: 'Jonas', cool: true}), true);
224
    assert.strictEqual(model.matches({name: 'Jonas', cool: false}), false);
225
  });
226
227
  QUnit.test('matches with predicate', function(assert) {
228
    var model = new Backbone.Model({a: 0});
229
230
    assert.strictEqual(model.matches(function(attr) {
231
      return attr.a > 1 && attr.b != null;
232
    }), false);
233
234
    model.set({a: 3, b: true});
235
236
    assert.strictEqual(model.matches(function(attr) {
237
      return attr.a > 1 && attr.b != null;
238
    }), true);
239
  });
240
241
  QUnit.test('set and unset', function(assert) {
242
    assert.expect(8);
243
    var a = new Backbone.Model({id: 'id', foo: 1, bar: 2, baz: 3});
244
    var changeCount = 0;
245
    a.on('change:foo', function() { changeCount += 1; });
246
    a.set({foo: 2});
247
    assert.equal(a.get('foo'), 2, 'Foo should have changed.');
248
    assert.equal(changeCount, 1, 'Change count should have incremented.');
249
    // set with value that is not new shouldn't fire change event
250
    a.set({foo: 2});
251
    assert.equal(a.get('foo'), 2, 'Foo should NOT have changed, still 2');
252
    assert.equal(changeCount, 1, 'Change count should NOT have incremented.');
253
254
    a.validate = function(attrs) {
255
      assert.equal(attrs.foo, void 0, 'validate:true passed while unsetting');
256
    };
257
    a.unset('foo', {validate: true});
258
    assert.equal(a.get('foo'), void 0, 'Foo should have changed');
259
    delete a.validate;
260
    assert.equal(changeCount, 2, 'Change count should have incremented for unset.');
261
262
    a.unset('id');
263
    assert.equal(a.id, undefined, 'Unsetting the id should remove the id property.');
264
  });
265
266
  QUnit.test('#2030 - set with failed validate, followed by another set triggers change', function(assert) {
267
    var attr = 0, main = 0, error = 0;
268
    var Model = Backbone.Model.extend({
269
      validate: function(attrs) {
270
        if (attrs.x > 1) {
271
          error++;
272
          return 'this is an error';
273
        }
274
      }
275
    });
276
    var model = new Model({x: 0});
277
    model.on('change:x', function() { attr++; });
278
    model.on('change', function() { main++; });
279
    model.set({x: 2}, {validate: true});
280
    model.set({x: 1}, {validate: true});
281
    assert.deepEqual([attr, main, error], [1, 1, 1]);
282
  });
283
284
  QUnit.test('set triggers changes in the correct order', function(assert) {
285
    var value = null;
286
    var model = new Backbone.Model;
287
    model.on('last', function(){ value = 'last'; });
288
    model.on('first', function(){ value = 'first'; });
289
    model.trigger('first');
290
    model.trigger('last');
291
    assert.equal(value, 'last');
292
  });
293
294
  QUnit.test('set falsy values in the correct order', function(assert) {
295
    assert.expect(2);
296
    var model = new Backbone.Model({result: 'result'});
297
    model.on('change', function() {
298
      assert.equal(model.changed.result, void 0);
299
      assert.equal(model.previous('result'), false);
300
    });
301
    model.set({result: void 0}, {silent: true});
302
    model.set({result: null}, {silent: true});
303
    model.set({result: false}, {silent: true});
304
    model.set({result: void 0});
305
  });
306
307
  QUnit.test('nested set triggers with the correct options', function(assert) {
308
    var model = new Backbone.Model();
309
    var o1 = {};
310
    var o2 = {};
311
    var o3 = {};
312
    model.on('change', function(__, options) {
313
      switch (model.get('a')) {
314
        case 1:
315
          assert.equal(options, o1);
316
          return model.set('a', 2, o2);
317
        case 2:
318
          assert.equal(options, o2);
319
          return model.set('a', 3, o3);
320
        case 3:
321
          assert.equal(options, o3);
322
      }
323
    });
324
    model.set('a', 1, o1);
325
  });
326
327
  QUnit.test('multiple unsets', function(assert) {
328
    assert.expect(1);
329
    var i = 0;
330
    var counter = function(){ i++; };
331
    var model = new Backbone.Model({a: 1});
332
    model.on('change:a', counter);
333
    model.set({a: 2});
334
    model.unset('a');
335
    model.unset('a');
336
    assert.equal(i, 2, 'Unset does not fire an event for missing attributes.');
337
  });
338
339
  QUnit.test('unset and changedAttributes', function(assert) {
340
    assert.expect(1);
341
    var model = new Backbone.Model({a: 1});
342
    model.on('change', function() {
343
      assert.ok('a' in model.changedAttributes(), 'changedAttributes should contain unset properties');
344
    });
345
    model.unset('a');
346
  });
347
348
  QUnit.test('using a non-default id attribute.', function(assert) {
349
    assert.expect(5);
350
    var MongoModel = Backbone.Model.extend({idAttribute: '_id'});
351
    var model = new MongoModel({id: 'eye-dee', _id: 25, title: 'Model'});
352
    assert.equal(model.get('id'), 'eye-dee');
353
    assert.equal(model.id, 25);
354
    assert.equal(model.isNew(), false);
355
    model.unset('_id');
356
    assert.equal(model.id, undefined);
357
    assert.equal(model.isNew(), true);
358
  });
359
360
  QUnit.test('setting an alternative cid prefix', function(assert) {
361
    assert.expect(4);
362
    var Model = Backbone.Model.extend({
363
      cidPrefix: 'm'
364
    });
365
    var model = new Model();
366
367
    assert.equal(model.cid.charAt(0), 'm');
368
369
    model = new Backbone.Model();
370
    assert.equal(model.cid.charAt(0), 'c');
371
372
    var Collection = Backbone.Collection.extend({
373
      model: Model
374
    });
375
    var col = new Collection([{id: 'c5'}, {id: 'c6'}, {id: 'c7'}]);
376
377
    assert.equal(col.get('c6').cid.charAt(0), 'm');
378
    col.set([{id: 'c6', value: 'test'}], {
379
      merge: true,
380
      add: true,
381
      remove: false
382
    });
383
    assert.ok(col.get('c6').has('value'));
384
  });
385
386
  QUnit.test('set an empty string', function(assert) {
387
    assert.expect(1);
388
    var model = new Backbone.Model({name: 'Model'});
389
    model.set({name: ''});
390
    assert.equal(model.get('name'), '');
391
  });
392
393
  QUnit.test('setting an object', function(assert) {
394
    assert.expect(1);
395
    var model = new Backbone.Model({
396
      custom: {foo: 1}
397
    });
398
    model.on('change', function() {
399
      assert.ok(1);
400
    });
401
    model.set({
402
      custom: {foo: 1} // no change should be fired
403
    });
404
    model.set({
405
      custom: {foo: 2} // change event should be fired
406
    });
407
  });
408
409
  QUnit.test('clear', function(assert) {
410
    assert.expect(3);
411
    var changed;
412
    var model = new Backbone.Model({id: 1, name: 'Model'});
413
    model.on('change:name', function(){ changed = true; });
414
    model.on('change', function() {
415
      var changedAttrs = model.changedAttributes();
416
      assert.ok('name' in changedAttrs);
417
    });
418
    model.clear();
419
    assert.equal(changed, true);
420
    assert.equal(model.get('name'), undefined);
421
  });
422
423
  QUnit.test('defaults', function(assert) {
424
    assert.expect(9);
425
    var Defaulted = Backbone.Model.extend({
426
      defaults: {
427
        one: 1,
428
        two: 2
429
      }
430
    });
431
    var model = new Defaulted({two: undefined});
432
    assert.equal(model.get('one'), 1);
433
    assert.equal(model.get('two'), 2);
434
    model = new Defaulted({two: 3});
435
    assert.equal(model.get('one'), 1);
436
    assert.equal(model.get('two'), 3);
437
    Defaulted = Backbone.Model.extend({
438
      defaults: function() {
439
        return {
440
          one: 3,
441
          two: 4
442
        };
443
      }
444
    });
445
    model = new Defaulted({two: undefined});
446
    assert.equal(model.get('one'), 3);
447
    assert.equal(model.get('two'), 4);
448
    Defaulted = Backbone.Model.extend({
449
      defaults: {hasOwnProperty: true}
450
    });
451
    model = new Defaulted();
452
    assert.equal(model.get('hasOwnProperty'), true);
453
    model = new Defaulted({hasOwnProperty: undefined});
454
    assert.equal(model.get('hasOwnProperty'), true);
455
    model = new Defaulted({hasOwnProperty: false});
456
    assert.equal(model.get('hasOwnProperty'), false);
457
  });
458
459
  QUnit.test('change, hasChanged, changedAttributes, previous, previousAttributes', function(assert) {
460
    assert.expect(9);
461
    var model = new Backbone.Model({name: 'Tim', age: 10});
462
    assert.deepEqual(model.changedAttributes(), false);
463
    model.on('change', function() {
464
      assert.ok(model.hasChanged('name'), 'name changed');
465
      assert.ok(!model.hasChanged('age'), 'age did not');
466
      assert.ok(_.isEqual(model.changedAttributes(), {name: 'Rob'}), 'changedAttributes returns the changed attrs');
467
      assert.equal(model.previous('name'), 'Tim');
468
      assert.ok(_.isEqual(model.previousAttributes(), {name: 'Tim', age: 10}), 'previousAttributes is correct');
469
    });
470
    assert.equal(model.hasChanged(), false);
471
    assert.equal(model.hasChanged(undefined), false);
472
    model.set({name: 'Rob'});
473
    assert.equal(model.get('name'), 'Rob');
474
  });
475
476
  QUnit.test('changedAttributes', function(assert) {
477
    assert.expect(3);
478
    var model = new Backbone.Model({a: 'a', b: 'b'});
479
    assert.deepEqual(model.changedAttributes(), false);
480
    assert.equal(model.changedAttributes({a: 'a'}), false);
481
    assert.equal(model.changedAttributes({a: 'b'}).a, 'b');
482
  });
483
484
  QUnit.test('change with options', function(assert) {
485
    assert.expect(2);
486
    var value;
487
    var model = new Backbone.Model({name: 'Rob'});
488
    model.on('change', function(m, options) {
489
      value = options.prefix + m.get('name');
490
    });
491
    model.set({name: 'Bob'}, {prefix: 'Mr. '});
492
    assert.equal(value, 'Mr. Bob');
493
    model.set({name: 'Sue'}, {prefix: 'Ms. '});
494
    assert.equal(value, 'Ms. Sue');
495
  });
496
497
  QUnit.test('change after initialize', function(assert) {
498
    assert.expect(1);
499
    var changed = 0;
500
    var attrs = {id: 1, label: 'c'};
501
    var obj = new Backbone.Model(attrs);
502
    obj.on('change', function() { changed += 1; });
503
    obj.set(attrs);
504
    assert.equal(changed, 0);
505
  });
506
507
  QUnit.test('save within change event', function(assert) {
508
    assert.expect(1);
509
    var env = this;
510
    var model = new Backbone.Model({firstName: 'Taylor', lastName: 'Swift'});
511
    model.url = '/test';
512
    model.on('change', function() {
513
      model.save();
514
      assert.ok(_.isEqual(env.syncArgs.model, model));
515
    });
516
    model.set({lastName: 'Hicks'});
517
  });
518
519
  QUnit.test('validate after save', function(assert) {
520
    assert.expect(2);
521
    var lastError, model = new Backbone.Model();
522
    model.validate = function(attrs) {
523
      if (attrs.admin) return "Can't change admin status.";
524
    };
525
    model.sync = function(method, m, options) {
526
      options.success.call(this, {admin: true});
527
    };
528
    model.on('invalid', function(m, error) {
529
      lastError = error;
530
    });
531
    model.save(null);
532
533
    assert.equal(lastError, "Can't change admin status.");
534
    assert.equal(model.validationError, "Can't change admin status.");
535
  });
536
537
  QUnit.test('save', function(assert) {
538
    assert.expect(2);
539
    doc.save({title: 'Henry V'});
540
    assert.equal(this.syncArgs.method, 'update');
541
    assert.ok(_.isEqual(this.syncArgs.model, doc));
542
  });
543
544
  QUnit.test('save, fetch, destroy triggers error event when an error occurs', function(assert) {
545
    assert.expect(3);
546
    var model = new Backbone.Model();
547
    model.on('error', function() {
548
      assert.ok(true);
549
    });
550
    model.sync = function(method, m, options) {
551
      options.error();
552
    };
553
    model.save({data: 2, id: 1});
554
    model.fetch();
555
    model.destroy();
556
  });
557
558
  QUnit.test('#3283 - save, fetch, destroy calls success with context', function(assert) {
559
    assert.expect(3);
560
    var model = new Backbone.Model();
561
    var obj = {};
562
    var options = {
563
      context: obj,
564
      success: function() {
565
        assert.equal(this, obj);
566
      }
567
    };
568
    model.sync = function(method, m, opts) {
569
      opts.success.call(opts.context);
570
    };
571
    model.save({data: 2, id: 1}, options);
572
    model.fetch(options);
573
    model.destroy(options);
574
  });
575
576
  QUnit.test('#3283 - save, fetch, destroy calls error with context', function(assert) {
577
    assert.expect(3);
578
    var model = new Backbone.Model();
579
    var obj = {};
580
    var options = {
581
      context: obj,
582
      error: function() {
583
        assert.equal(this, obj);
584
      }
585
    };
586
    model.sync = function(method, m, opts) {
587
      opts.error.call(opts.context);
588
    };
589
    model.save({data: 2, id: 1}, options);
590
    model.fetch(options);
591
    model.destroy(options);
592
  });
593
594
  QUnit.test('#3470 - save and fetch with parse false', function(assert) {
595
    assert.expect(2);
596
    var i = 0;
597
    var model = new Backbone.Model();
598
    model.parse = function() {
599
      assert.ok(false);
600
    };
601
    model.sync = function(method, m, options) {
602
      options.success({i: ++i});
603
    };
604
    model.fetch({parse: false});
605
    assert.equal(model.get('i'), i);
606
    model.save(null, {parse: false});
607
    assert.equal(model.get('i'), i);
608
  });
609
610
  QUnit.test('save with PATCH', function(assert) {
611
    doc.clear().set({id: 1, a: 1, b: 2, c: 3, d: 4});
612
    doc.save();
613
    assert.equal(this.syncArgs.method, 'update');
614
    assert.equal(this.syncArgs.options.attrs, undefined);
615
616
    doc.save({b: 2, d: 4}, {patch: true});
617
    assert.equal(this.syncArgs.method, 'patch');
618
    assert.equal(_.size(this.syncArgs.options.attrs), 2);
619
    assert.equal(this.syncArgs.options.attrs.d, 4);
620
    assert.equal(this.syncArgs.options.attrs.a, undefined);
621
    assert.equal(this.ajaxSettings.data, '{"b":2,"d":4}');
622
  });
623
624
  QUnit.test('save with PATCH and different attrs', function(assert) {
625
    doc.clear().save({b: 2, d: 4}, {patch: true, attrs: {B: 1, D: 3}});
626
    assert.equal(this.syncArgs.options.attrs.D, 3);
627
    assert.equal(this.syncArgs.options.attrs.d, undefined);
628
    assert.equal(this.ajaxSettings.data, '{"B":1,"D":3}');
629
    assert.deepEqual(doc.attributes, {b: 2, d: 4});
630
  });
631
632
  QUnit.test('save in positional style', function(assert) {
633
    assert.expect(1);
634
    var model = new Backbone.Model();
635
    model.sync = function(method, m, options) {
636
      options.success();
637
    };
638
    model.save('title', 'Twelfth Night');
639
    assert.equal(model.get('title'), 'Twelfth Night');
640
  });
641
642
  QUnit.test('save with non-object success response', function(assert) {
643
    assert.expect(2);
644
    var model = new Backbone.Model();
645
    model.sync = function(method, m, options) {
646
      options.success('', options);
647
      options.success(null, options);
648
    };
649
    model.save({testing: 'empty'}, {
650
      success: function(m) {
651
        assert.deepEqual(m.attributes, {testing: 'empty'});
652
      }
653
    });
654
  });
655
656
  QUnit.test('save with wait and supplied id', function(assert) {
657
    var Model = Backbone.Model.extend({
658
      urlRoot: '/collection'
659
    });
660
    var model = new Model();
661
    model.save({id: 42}, {wait: true});
662
    assert.equal(this.ajaxSettings.url, '/collection/42');
663
  });
664
665
  QUnit.test('save will pass extra options to success callback', function(assert) {
666
    assert.expect(1);
667
    var SpecialSyncModel = Backbone.Model.extend({
668
      sync: function(method, m, options) {
669
        _.extend(options, {specialSync: true});
670
        return Backbone.Model.prototype.sync.call(this, method, m, options);
671
      },
672
      urlRoot: '/test'
673
    });
674
675
    var model = new SpecialSyncModel();
676
677
    var onSuccess = function(m, response, options) {
678
      assert.ok(options.specialSync, 'Options were passed correctly to callback');
679
    };
680
681
    model.save(null, {success: onSuccess});
682
    this.ajaxSettings.success();
683
  });
684
685
  QUnit.test('fetch', function(assert) {
686
    assert.expect(2);
687
    doc.fetch();
688
    assert.equal(this.syncArgs.method, 'read');
689
    assert.ok(_.isEqual(this.syncArgs.model, doc));
690
  });
691
692
  QUnit.test('fetch will pass extra options to success callback', function(assert) {
693
    assert.expect(1);
694
    var SpecialSyncModel = Backbone.Model.extend({
695
      sync: function(method, m, options) {
696
        _.extend(options, {specialSync: true});
697
        return Backbone.Model.prototype.sync.call(this, method, m, options);
698
      },
699
      urlRoot: '/test'
700
    });
701
702
    var model = new SpecialSyncModel();
703
704
    var onSuccess = function(m, response, options) {
705
      assert.ok(options.specialSync, 'Options were passed correctly to callback');
706
    };
707
708
    model.fetch({success: onSuccess});
709
    this.ajaxSettings.success();
710
  });
711
712
  QUnit.test('destroy', function(assert) {
713
    assert.expect(3);
714
    doc.destroy();
715
    assert.equal(this.syncArgs.method, 'delete');
716
    assert.ok(_.isEqual(this.syncArgs.model, doc));
717
718
    var newModel = new Backbone.Model;
719
    assert.equal(newModel.destroy(), false);
720
  });
721
722
  QUnit.test('destroy will pass extra options to success callback', function(assert) {
723
    assert.expect(1);
724
    var SpecialSyncModel = Backbone.Model.extend({
725
      sync: function(method, m, options) {
726
        _.extend(options, {specialSync: true});
727
        return Backbone.Model.prototype.sync.call(this, method, m, options);
728
      },
729
      urlRoot: '/test'
730
    });
731
732
    var model = new SpecialSyncModel({id: 'id'});
733
734
    var onSuccess = function(m, response, options) {
735
      assert.ok(options.specialSync, 'Options were passed correctly to callback');
736
    };
737
738
    model.destroy({success: onSuccess});
739
    this.ajaxSettings.success();
740
  });
741
742
  QUnit.test('non-persisted destroy', function(assert) {
743
    assert.expect(1);
744
    var a = new Backbone.Model({foo: 1, bar: 2, baz: 3});
745
    a.sync = function() { throw 'should not be called'; };
746
    a.destroy();
747
    assert.ok(true, 'non-persisted model should not call sync');
748
  });
749
750
  QUnit.test('validate', function(assert) {
751
    var lastError;
752
    var model = new Backbone.Model();
753
    model.validate = function(attrs) {
754
      if (attrs.admin !== this.get('admin')) return "Can't change admin status.";
755
    };
756
    model.on('invalid', function(m, error) {
757
      lastError = error;
758
    });
759
    var result = model.set({a: 100});
760
    assert.equal(result, model);
761
    assert.equal(model.get('a'), 100);
762
    assert.equal(lastError, undefined);
763
    result = model.set({admin: true});
764
    assert.equal(model.get('admin'), true);
765
    result = model.set({a: 200, admin: false}, {validate: true});
766
    assert.equal(lastError, "Can't change admin status.");
767
    assert.equal(result, false);
768
    assert.equal(model.get('a'), 100);
769
  });
770
771
  QUnit.test('validate on unset and clear', function(assert) {
772
    assert.expect(6);
773
    var error;
774
    var model = new Backbone.Model({name: 'One'});
775
    model.validate = function(attrs) {
776
      if (!attrs.name) {
777
        error = true;
778
        return 'No thanks.';
779
      }
780
    };
781
    model.set({name: 'Two'});
782
    assert.equal(model.get('name'), 'Two');
783
    assert.equal(error, undefined);
784
    model.unset('name', {validate: true});
785
    assert.equal(error, true);
786
    assert.equal(model.get('name'), 'Two');
787
    model.clear({validate: true});
788
    assert.equal(model.get('name'), 'Two');
789
    delete model.validate;
790
    model.clear();
791
    assert.equal(model.get('name'), undefined);
792
  });
793
794
  QUnit.test('validate with error callback', function(assert) {
795
    assert.expect(8);
796
    var lastError, boundError;
797
    var model = new Backbone.Model();
798
    model.validate = function(attrs) {
799
      if (attrs.admin) return "Can't change admin status.";
800
    };
801
    model.on('invalid', function(m, error) {
802
      boundError = true;
803
    });
804
    var result = model.set({a: 100}, {validate: true});
805
    assert.equal(result, model);
806
    assert.equal(model.get('a'), 100);
807
    assert.equal(model.validationError, null);
808
    assert.equal(boundError, undefined);
809
    result = model.set({a: 200, admin: true}, {validate: true});
810
    assert.equal(result, false);
811
    assert.equal(model.get('a'), 100);
812
    assert.equal(model.validationError, "Can't change admin status.");
813
    assert.equal(boundError, true);
814
  });
815
816
  QUnit.test('defaults always extend attrs (#459)', function(assert) {
817
    assert.expect(2);
818
    var Defaulted = Backbone.Model.extend({
819
      defaults: {one: 1},
820
      initialize: function(attrs, opts) {
821
        assert.equal(this.attributes.one, 1);
822
      }
823
    });
824
    var providedattrs = new Defaulted({});
825
    var emptyattrs = new Defaulted();
826
  });
827
828
  QUnit.test('Inherit class properties', function(assert) {
829
    assert.expect(6);
830
    var Parent = Backbone.Model.extend({
831
      instancePropSame: function() {},
832
      instancePropDiff: function() {}
833
    }, {
834
      classProp: function() {}
835
    });
836
    var Child = Parent.extend({
837
      instancePropDiff: function() {}
838
    });
839
840
    var adult = new Parent;
841
    var kid   = new Child;
842
843
    assert.equal(Child.classProp, Parent.classProp);
844
    assert.notEqual(Child.classProp, undefined);
845
846
    assert.equal(kid.instancePropSame, adult.instancePropSame);
847
    assert.notEqual(kid.instancePropSame, undefined);
848
849
    assert.notEqual(Child.prototype.instancePropDiff, Parent.prototype.instancePropDiff);
850
    assert.notEqual(Child.prototype.instancePropDiff, undefined);
851
  });
852
853
  QUnit.test("Nested change events don't clobber previous attributes", function(assert) {
854
    assert.expect(4);
855
    new Backbone.Model()
856
    .on('change:state', function(m, newState) {
857
      assert.equal(m.previous('state'), undefined);
858
      assert.equal(newState, 'hello');
859
      // Fire a nested change event.
860
      m.set({other: 'whatever'});
861
    })
862
    .on('change:state', function(m, newState) {
863
      assert.equal(m.previous('state'), undefined);
864
      assert.equal(newState, 'hello');
865
    })
866
    .set({state: 'hello'});
867
  });
868
869
  QUnit.test('hasChanged/set should use same comparison', function(assert) {
870
    assert.expect(2);
871
    var changed = 0, model = new Backbone.Model({a: null});
872
    model.on('change', function() {
873
      assert.ok(this.hasChanged('a'));
874
    })
875
    .on('change:a', function() {
876
      changed++;
877
    })
878
    .set({a: undefined});
879
    assert.equal(changed, 1);
880
  });
881
882
  QUnit.test('#582, #425, change:attribute callbacks should fire after all changes have occurred', function(assert) {
883
    assert.expect(9);
884
    var model = new Backbone.Model;
885
886
    var assertion = function() {
887
      assert.equal(model.get('a'), 'a');
888
      assert.equal(model.get('b'), 'b');
889
      assert.equal(model.get('c'), 'c');
890
    };
891
892
    model.on('change:a', assertion);
893
    model.on('change:b', assertion);
894
    model.on('change:c', assertion);
895
896
    model.set({a: 'a', b: 'b', c: 'c'});
897
  });
898
899
  QUnit.test('#871, set with attributes property', function(assert) {
900
    assert.expect(1);
901
    var model = new Backbone.Model();
902
    model.set({attributes: true});
903
    assert.ok(model.has('attributes'));
904
  });
905
906
  QUnit.test('set value regardless of equality/change', function(assert) {
907
    assert.expect(1);
908
    var model = new Backbone.Model({x: []});
909
    var a = [];
910
    model.set({x: a});
911
    assert.ok(model.get('x') === a);
912
  });
913
914
  QUnit.test('set same value does not trigger change', function(assert) {
915
    assert.expect(0);
916
    var model = new Backbone.Model({x: 1});
917
    model.on('change change:x', function() { assert.ok(false); });
918
    model.set({x: 1});
919
    model.set({x: 1});
920
  });
921
922
  QUnit.test('unset does not fire a change for undefined attributes', function(assert) {
923
    assert.expect(0);
924
    var model = new Backbone.Model({x: undefined});
925
    model.on('change:x', function(){ assert.ok(false); });
926
    model.unset('x');
927
  });
928
929
  QUnit.test('set: undefined values', function(assert) {
930
    assert.expect(1);
931
    var model = new Backbone.Model({x: undefined});
932
    assert.ok('x' in model.attributes);
933
  });
934
935
  QUnit.test('hasChanged works outside of change events, and true within', function(assert) {
936
    assert.expect(6);
937
    var model = new Backbone.Model({x: 1});
938
    model.on('change:x', function() {
939
      assert.ok(model.hasChanged('x'));
940
      assert.equal(model.get('x'), 1);
941
    });
942
    model.set({x: 2}, {silent: true});
943
    assert.ok(model.hasChanged());
944
    assert.equal(model.hasChanged('x'), true);
945
    model.set({x: 1});
946
    assert.ok(model.hasChanged());
947
    assert.equal(model.hasChanged('x'), true);
948
  });
949
950
  QUnit.test('hasChanged gets cleared on the following set', function(assert) {
951
    assert.expect(4);
952
    var model = new Backbone.Model;
953
    model.set({x: 1});
954
    assert.ok(model.hasChanged());
955
    model.set({x: 1});
956
    assert.ok(!model.hasChanged());
957
    model.set({x: 2});
958
    assert.ok(model.hasChanged());
959
    model.set({});
960
    assert.ok(!model.hasChanged());
961
  });
962
963
  QUnit.test('save with `wait` succeeds without `validate`', function(assert) {
964
    assert.expect(1);
965
    var model = new Backbone.Model();
966
    model.url = '/test';
967
    model.save({x: 1}, {wait: true});
968
    assert.ok(this.syncArgs.model === model);
969
  });
970
971
  QUnit.test("save without `wait` doesn't set invalid attributes", function(assert) {
972
    var model = new Backbone.Model();
973
    model.validate = function() { return 1; };
974
    model.save({a: 1});
975
    assert.equal(model.get('a'), void 0);
976
  });
977
978
  QUnit.test("save doesn't validate twice", function(assert) {
979
    var model = new Backbone.Model();
980
    var times = 0;
981
    model.sync = function() {};
982
    model.validate = function() { ++times; };
983
    model.save({});
984
    assert.equal(times, 1);
985
  });
986
987
  QUnit.test('`hasChanged` for falsey keys', function(assert) {
988
    assert.expect(2);
989
    var model = new Backbone.Model();
990
    model.set({x: true}, {silent: true});
991
    assert.ok(!model.hasChanged(0));
992
    assert.ok(!model.hasChanged(''));
993
  });
994
995
  QUnit.test('`previous` for falsey keys', function(assert) {
996
    assert.expect(2);
997
    var model = new Backbone.Model({'0': true, '': true});
998
    model.set({'0': false, '': false}, {silent: true});
999
    assert.equal(model.previous(0), true);
1000
    assert.equal(model.previous(''), true);
1001
  });
1002
1003
  QUnit.test('`save` with `wait` sends correct attributes', function(assert) {
1004
    assert.expect(5);
1005
    var changed = 0;
1006
    var model = new Backbone.Model({x: 1, y: 2});
1007
    model.url = '/test';
1008
    model.on('change:x', function() { changed++; });
1009
    model.save({x: 3}, {wait: true});
1010
    assert.deepEqual(JSON.parse(this.ajaxSettings.data), {x: 3, y: 2});
1011
    assert.equal(model.get('x'), 1);
1012
    assert.equal(changed, 0);
1013
    this.syncArgs.options.success({});
1014
    assert.equal(model.get('x'), 3);
1015
    assert.equal(changed, 1);
1016
  });
1017
1018
  QUnit.test("a failed `save` with `wait` doesn't leave attributes behind", function(assert) {
1019
    assert.expect(1);
1020
    var model = new Backbone.Model;
1021
    model.url = '/test';
1022
    model.save({x: 1}, {wait: true});
1023
    assert.equal(model.get('x'), void 0);
1024
  });
1025
1026
  QUnit.test('#1030 - `save` with `wait` results in correct attributes if success is called during sync', function(assert) {
1027
    assert.expect(2);
1028
    var model = new Backbone.Model({x: 1, y: 2});
1029
    model.sync = function(method, m, options) {
1030
      options.success();
1031
    };
1032
    model.on('change:x', function() { assert.ok(true); });
1033
    model.save({x: 3}, {wait: true});
1034
    assert.equal(model.get('x'), 3);
1035
  });
1036
1037
  QUnit.test('save with wait validates attributes', function(assert) {
1038
    var model = new Backbone.Model();
1039
    model.url = '/test';
1040
    model.validate = function() { assert.ok(true); };
1041
    model.save({x: 1}, {wait: true});
1042
  });
1043
1044
  QUnit.test('save turns on parse flag', function(assert) {
1045
    var Model = Backbone.Model.extend({
1046
      sync: function(method, m, options) { assert.ok(options.parse); }
1047
    });
1048
    new Model().save();
1049
  });
1050
1051
  QUnit.test("nested `set` during `'change:attr'`", function(assert) {
1052
    assert.expect(2);
1053
    var events = [];
1054
    var model = new Backbone.Model();
1055
    model.on('all', function(event) { events.push(event); });
1056
    model.on('change', function() {
1057
      model.set({z: true}, {silent: true});
1058
    });
1059
    model.on('change:x', function() {
1060
      model.set({y: true});
1061
    });
1062
    model.set({x: true});
1063
    assert.deepEqual(events, ['change:y', 'change:x', 'change']);
1064
    events = [];
1065
    model.set({z: true});
1066
    assert.deepEqual(events, []);
1067
  });
1068
1069
  QUnit.test('nested `change` only fires once', function(assert) {
1070
    assert.expect(1);
1071
    var model = new Backbone.Model();
1072
    model.on('change', function() {
1073
      assert.ok(true);
1074
      model.set({x: true});
1075
    });
1076
    model.set({x: true});
1077
  });
1078
1079
  QUnit.test("nested `set` during `'change'`", function(assert) {
1080
    assert.expect(6);
1081
    var count = 0;
1082
    var model = new Backbone.Model();
1083
    model.on('change', function() {
1084
      switch (count++) {
1085
        case 0:
1086
          assert.deepEqual(this.changedAttributes(), {x: true});
1087
          assert.equal(model.previous('x'), undefined);
1088
          model.set({y: true});
1089
          break;
1090
        case 1:
1091
          assert.deepEqual(this.changedAttributes(), {x: true, y: true});
1092
          assert.equal(model.previous('x'), undefined);
1093
          model.set({z: true});
1094
          break;
1095
        case 2:
1096
          assert.deepEqual(this.changedAttributes(), {x: true, y: true, z: true});
1097
          assert.equal(model.previous('y'), undefined);
1098
          break;
1099
        default:
1100
          assert.ok(false);
1101
      }
1102
    });
1103
    model.set({x: true});
1104
  });
1105
1106
  QUnit.test('nested `change` with silent', function(assert) {
1107
    assert.expect(3);
1108
    var count = 0;
1109
    var model = new Backbone.Model();
1110
    model.on('change:y', function() { assert.ok(false); });
1111
    model.on('change', function() {
1112
      switch (count++) {
1113
        case 0:
1114
          assert.deepEqual(this.changedAttributes(), {x: true});
1115
          model.set({y: true}, {silent: true});
1116
          model.set({z: true});
1117
          break;
1118
        case 1:
1119
          assert.deepEqual(this.changedAttributes(), {x: true, y: true, z: true});
1120
          break;
1121
        case 2:
1122
          assert.deepEqual(this.changedAttributes(), {z: false});
1123
          break;
1124
        default:
1125
          assert.ok(false);
1126
      }
1127
    });
1128
    model.set({x: true});
1129
    model.set({z: false});
1130
  });
1131
1132
  QUnit.test('nested `change:attr` with silent', function(assert) {
1133
    assert.expect(0);
1134
    var model = new Backbone.Model();
1135
    model.on('change:y', function(){ assert.ok(false); });
1136
    model.on('change', function() {
1137
      model.set({y: true}, {silent: true});
1138
      model.set({z: true});
1139
    });
1140
    model.set({x: true});
1141
  });
1142
1143
  QUnit.test('multiple nested changes with silent', function(assert) {
1144
    assert.expect(1);
1145
    var model = new Backbone.Model();
1146
    model.on('change:x', function() {
1147
      model.set({y: 1}, {silent: true});
1148
      model.set({y: 2});
1149
    });
1150
    model.on('change:y', function(m, val) {
1151
      assert.equal(val, 2);
1152
    });
1153
    model.set({x: true});
1154
  });
1155
1156
  QUnit.test('multiple nested changes with silent', function(assert) {
1157
    assert.expect(1);
1158
    var changes = [];
1159
    var model = new Backbone.Model();
1160
    model.on('change:b', function(m, val) { changes.push(val); });
1161
    model.on('change', function() {
1162
      model.set({b: 1});
1163
    });
1164
    model.set({b: 0});
1165
    assert.deepEqual(changes, [0, 1]);
1166
  });
1167
1168
  QUnit.test('basic silent change semantics', function(assert) {
1169
    assert.expect(1);
1170
    var model = new Backbone.Model;
1171
    model.set({x: 1});
1172
    model.on('change', function(){ assert.ok(true); });
1173
    model.set({x: 2}, {silent: true});
1174
    model.set({x: 1});
1175
  });
1176
1177
  QUnit.test('nested set multiple times', function(assert) {
1178
    assert.expect(1);
1179
    var model = new Backbone.Model();
1180
    model.on('change:b', function() {
1181
      assert.ok(true);
1182
    });
1183
    model.on('change:a', function() {
1184
      model.set({b: true});
1185
      model.set({b: true});
1186
    });
1187
    model.set({a: true});
1188
  });
1189
1190
  QUnit.test('#1122 - clear does not alter options.', function(assert) {
1191
    assert.expect(1);
1192
    var model = new Backbone.Model();
1193
    var options = {};
1194
    model.clear(options);
1195
    assert.ok(!options.unset);
1196
  });
1197
1198
  QUnit.test('#1122 - unset does not alter options.', function(assert) {
1199
    assert.expect(1);
1200
    var model = new Backbone.Model();
1201
    var options = {};
1202
    model.unset('x', options);
1203
    assert.ok(!options.unset);
1204
  });
1205
1206
  QUnit.test('#1355 - `options` is passed to success callbacks', function(assert) {
1207
    assert.expect(3);
1208
    var model = new Backbone.Model();
1209
    var opts = {
1210
      success: function( m, resp, options ) {
1211
        assert.ok(options);
1212
      }
1213
    };
1214
    model.sync = function(method, m, options) {
1215
      options.success();
1216
    };
1217
    model.save({id: 1}, opts);
1218
    model.fetch(opts);
1219
    model.destroy(opts);
1220
  });
1221
1222
  QUnit.test("#1412 - Trigger 'sync' event.", function(assert) {
1223
    assert.expect(3);
1224
    var model = new Backbone.Model({id: 1});
1225
    model.sync = function(method, m, options) { options.success(); };
1226
    model.on('sync', function(){ assert.ok(true); });
1227
    model.fetch();
1228
    model.save();
1229
    model.destroy();
1230
  });
1231
1232
  QUnit.test('#1365 - Destroy: New models execute success callback.', function(assert) {
1233
    var done = assert.async();
1234
    assert.expect(2);
1235
    new Backbone.Model()
1236
    .on('sync', function() { assert.ok(false); })
1237
    .on('destroy', function(){ assert.ok(true); })
1238
    .destroy({success: function(){
1239
      assert.ok(true);
1240
      done();
1241
    }});
1242
  });
1243
1244
  QUnit.test('#1433 - Save: An invalid model cannot be persisted.', function(assert) {
1245
    assert.expect(1);
1246
    var model = new Backbone.Model;
1247
    model.validate = function(){ return 'invalid'; };
1248
    model.sync = function(){ assert.ok(false); };
1249
    assert.strictEqual(model.save(), false);
1250
  });
1251
1252
  QUnit.test("#1377 - Save without attrs triggers 'error'.", function(assert) {
1253
    assert.expect(1);
1254
    var Model = Backbone.Model.extend({
1255
      url: '/test/',
1256
      sync: function(method, m, options){ options.success(); },
1257
      validate: function(){ return 'invalid'; }
1258
    });
1259
    var model = new Model({id: 1});
1260
    model.on('invalid', function(){ assert.ok(true); });
1261
    model.save();
1262
  });
1263
1264
  QUnit.test('#1545 - `undefined` can be passed to a model constructor without coersion', function(assert) {
1265
    var Model = Backbone.Model.extend({
1266
      defaults: {one: 1},
1267
      initialize: function(attrs, opts) {
1268
        assert.equal(attrs, undefined);
1269
      }
1270
    });
1271
    var emptyattrs = new Model();
1272
    var undefinedattrs = new Model(undefined);
1273
  });
1274
1275
  QUnit.test('#1478 - Model `save` does not trigger change on unchanged attributes', function(assert) {
1276
    var done = assert.async();
1277
    assert.expect(0);
1278
    var Model = Backbone.Model.extend({
1279
      sync: function(method, m, options) {
1280
        setTimeout(function(){
1281
          options.success();
1282
          done();
1283
        }, 0);
1284
      }
1285
    });
1286
    new Model({x: true})
1287
    .on('change:x', function(){ assert.ok(false); })
1288
    .save(null, {wait: true});
1289
  });
1290
1291
  QUnit.test('#1664 - Changing from one value, silently to another, back to original triggers a change.', function(assert) {
1292
    assert.expect(1);
1293
    var model = new Backbone.Model({x: 1});
1294
    model.on('change:x', function() { assert.ok(true); });
1295
    model.set({x: 2}, {silent: true});
1296
    model.set({x: 3}, {silent: true});
1297
    model.set({x: 1});
1298
  });
1299
1300
  QUnit.test('#1664 - multiple silent changes nested inside a change event', function(assert) {
1301
    assert.expect(2);
1302
    var changes = [];
1303
    var model = new Backbone.Model();
1304
    model.on('change', function() {
1305
      model.set({a: 'c'}, {silent: true});
1306
      model.set({b: 2}, {silent: true});
1307
      model.unset('c', {silent: true});
1308
    });
1309
    model.on('change:a change:b change:c', function(m, val) { changes.push(val); });
1310
    model.set({a: 'a', b: 1, c: 'item'});
1311
    assert.deepEqual(changes, ['a', 1, 'item']);
1312
    assert.deepEqual(model.attributes, {a: 'c', b: 2});
1313
  });
1314
1315
  QUnit.test('#1791 - `attributes` is available for `parse`', function(assert) {
1316
    var Model = Backbone.Model.extend({
1317
      parse: function() { this.has('a'); } // shouldn't throw an error
1318
    });
1319
    var model = new Model(null, {parse: true});
1320
    assert.expect(0);
1321
  });
1322
1323
  QUnit.test('silent changes in last `change` event back to original triggers change', function(assert) {
1324
    assert.expect(2);
1325
    var changes = [];
1326
    var model = new Backbone.Model();
1327
    model.on('change:a change:b change:c', function(m, val) { changes.push(val); });
1328
    model.on('change', function() {
1329
      model.set({a: 'c'}, {silent: true});
1330
    });
1331
    model.set({a: 'a'});
1332
    assert.deepEqual(changes, ['a']);
1333
    model.set({a: 'a'});
1334
    assert.deepEqual(changes, ['a', 'a']);
1335
  });
1336
1337
  QUnit.test('#1943 change calculations should use _.isEqual', function(assert) {
1338
    var model = new Backbone.Model({a: {key: 'value'}});
1339
    model.set('a', {key: 'value'}, {silent: true});
1340
    assert.equal(model.changedAttributes(), false);
1341
  });
1342
1343
  QUnit.test('#1964 - final `change` event is always fired, regardless of interim changes', function(assert) {
1344
    assert.expect(1);
1345
    var model = new Backbone.Model();
1346
    model.on('change:property', function() {
1347
      model.set('property', 'bar');
1348
    });
1349
    model.on('change', function() {
1350
      assert.ok(true);
1351
    });
1352
    model.set('property', 'foo');
1353
  });
1354
1355
  QUnit.test('isValid', function(assert) {
1356
    var model = new Backbone.Model({valid: true});
1357
    model.validate = function(attrs) {
1358
      if (!attrs.valid) return 'invalid';
1359
    };
1360
    assert.equal(model.isValid(), true);
1361
    assert.equal(model.set({valid: false}, {validate: true}), false);
1362
    assert.equal(model.isValid(), true);
1363
    model.set({valid: false});
1364
    assert.equal(model.isValid(), false);
1365
    assert.ok(!model.set('valid', false, {validate: true}));
1366
  });
1367
1368
  QUnit.test('#1179 - isValid returns true in the absence of validate.', function(assert) {
1369
    assert.expect(1);
1370
    var model = new Backbone.Model();
1371
    model.validate = null;
1372
    assert.ok(model.isValid());
1373
  });
1374
1375
  QUnit.test('#1961 - Creating a model with {validate:true} will call validate and use the error callback', function(assert) {
1376
    var Model = Backbone.Model.extend({
1377
      validate: function(attrs) {
1378
        if (attrs.id === 1) return "This shouldn't happen";
1379
      }
1380
    });
1381
    var model = new Model({id: 1}, {validate: true});
1382
    assert.equal(model.validationError, "This shouldn't happen");
1383
  });
1384
1385
  QUnit.test('toJSON receives attrs during save(..., {wait: true})', function(assert) {
1386
    assert.expect(1);
1387
    var Model = Backbone.Model.extend({
1388
      url: '/test',
1389
      toJSON: function() {
1390
        assert.strictEqual(this.attributes.x, 1);
1391
        return _.clone(this.attributes);
1392
      }
1393
    });
1394
    var model = new Model;
1395
    model.save({x: 1}, {wait: true});
1396
  });
1397
1398
  QUnit.test('#2034 - nested set with silent only triggers one change', function(assert) {
1399
    assert.expect(1);
1400
    var model = new Backbone.Model();
1401
    model.on('change', function() {
1402
      model.set({b: true}, {silent: true});
1403
      assert.ok(true);
1404
    });
1405
    model.set({a: true});
1406
  });
1407
1408
  QUnit.test('#3778 - id will only be updated if it is set', function(assert) {
1409
    assert.expect(2);
1410
    var model = new Backbone.Model({id: 1});
1411
    model.id = 2;
1412
    model.set({foo: 'bar'});
1413
    assert.equal(model.id, 2);
1414
    model.set({id: 3});
1415
    assert.equal(model.id, 3);
1416
  });
1417
1418
})();
1419