mirror of
https://github.com/jashkenas/backbone.git
synced 2026-01-20 04:18:11 -05:00
771 lines
23 KiB
JavaScript
771 lines
23 KiB
JavaScript
$(document).ready(function() {
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// Variable to catch the last request.
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var lastRequest = null;
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// Variable to catch ajax params.
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var ajaxParams = null;
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var sync = Backbone.sync;
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var ajax = $.ajax;
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var urlRoot = null;
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var proxy = Backbone.Model.extend();
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var klass = Backbone.Collection.extend({
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url : function() { return '/collection'; }
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});
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var doc, collection;
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module("Backbone.Model", {
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setup: function() {
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doc = new proxy({
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id : '1-the-tempest',
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title : "The Tempest",
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author : "Bill Shakespeare",
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length : 123
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});
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collection = new klass();
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collection.add(doc);
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Backbone.sync = function(method, model, options) {
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lastRequest = {
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method: method,
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model: model,
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options: options
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};
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sync.apply(this, arguments);
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};
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$.ajax = function(params) { ajaxParams = params; };
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urlRoot = Backbone.Model.prototype.urlRoot;
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Backbone.Model.prototype.urlRoot = '/';
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},
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teardown: function() {
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Backbone.sync = sync;
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$.ajax = ajax;
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Backbone.Model.prototype.urlRoot = urlRoot;
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}
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});
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test("Model: initialize", function() {
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var Model = Backbone.Model.extend({
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initialize: function() {
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this.one = 1;
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equal(this.collection, collection);
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}
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});
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var model = new Model({}, {collection: collection});
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equal(model.one, 1);
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equal(model.collection, collection);
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});
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test("Model: initialize with attributes and options", function() {
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var Model = Backbone.Model.extend({
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initialize: function(attributes, options) {
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this.one = options.one;
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}
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});
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var model = new Model({}, {one: 1});
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equal(model.one, 1);
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});
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test("Model: initialize with parsed attributes", function() {
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var Model = Backbone.Model.extend({
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parse: function(obj) {
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obj.value += 1;
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return obj;
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}
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});
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var model = new Model({value: 1}, {parse: true});
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equal(model.get('value'), 2);
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});
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test("Model: url", function() {
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doc.urlRoot = null;
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equal(doc.url(), '/collection/1-the-tempest');
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doc.collection.url = '/collection/';
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equal(doc.url(), '/collection/1-the-tempest');
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doc.collection = null;
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raises(function() { doc.url(); });
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doc.collection = collection;
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});
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test("Model: url when using urlRoot, and uri encoding", function() {
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var Model = Backbone.Model.extend({
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urlRoot: '/collection'
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});
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var model = new Model();
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equal(model.url(), '/collection');
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model.set({id: '+1+'});
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equal(model.url(), '/collection/%2B1%2B');
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});
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test("Model: url when using urlRoot as a function to determine urlRoot at runtime", function() {
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var Model = Backbone.Model.extend({
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urlRoot: function() {
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return '/nested/' + this.get('parent_id') + '/collection';
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}
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});
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var model = new Model({parent_id: 1});
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equal(model.url(), '/nested/1/collection');
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model.set({id: 2});
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equal(model.url(), '/nested/1/collection/2');
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});
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test("Model: clone", function() {
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var a = new Backbone.Model({ 'foo': 1, 'bar': 2, 'baz': 3});
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var b = a.clone();
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equal(a.get('foo'), 1);
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equal(a.get('bar'), 2);
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equal(a.get('baz'), 3);
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equal(b.get('foo'), a.get('foo'), "Foo should be the same on the clone.");
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equal(b.get('bar'), a.get('bar'), "Bar should be the same on the clone.");
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equal(b.get('baz'), a.get('baz'), "Baz should be the same on the clone.");
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a.set({foo : 100});
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equal(a.get('foo'), 100);
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equal(b.get('foo'), 1, "Changing a parent attribute does not change the clone.");
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});
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test("Model: isNew", function() {
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var a = new Backbone.Model({ 'foo': 1, 'bar': 2, 'baz': 3});
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ok(a.isNew(), "it should be new");
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a = new Backbone.Model({ 'foo': 1, 'bar': 2, 'baz': 3, 'id': -5 });
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ok(!a.isNew(), "any defined ID is legal, negative or positive");
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a = new Backbone.Model({ 'foo': 1, 'bar': 2, 'baz': 3, 'id': 0 });
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ok(!a.isNew(), "any defined ID is legal, including zero");
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ok( new Backbone.Model({ }).isNew(), "is true when there is no id");
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ok(!new Backbone.Model({ 'id': 2 }).isNew(), "is false for a positive integer");
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ok(!new Backbone.Model({ 'id': -5 }).isNew(), "is false for a negative integer");
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});
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test("Model: get", function() {
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equal(doc.get('title'), 'The Tempest');
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equal(doc.get('author'), 'Bill Shakespeare');
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});
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test("Model: escape", function() {
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equal(doc.escape('title'), 'The Tempest');
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doc.set({audience: 'Bill & Bob'});
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equal(doc.escape('audience'), 'Bill & Bob');
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doc.set({audience: 'Tim > Joan'});
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equal(doc.escape('audience'), 'Tim > Joan');
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doc.set({audience: 10101});
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equal(doc.escape('audience'), '10101');
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doc.unset('audience');
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equal(doc.escape('audience'), '');
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});
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test("Model: has", function() {
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var a = new Backbone.Model();
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equal(a.has("name"), false);
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_([true, "Truth!", 1, false, '', 0]).each(function(value) {
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a.set({'name': value});
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equal(a.has("name"), true);
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});
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a.unset('name');
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equal(a.has('name'), false);
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_([null, undefined]).each(function(value) {
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a.set({'name': value});
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equal(a.has("name"), false);
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});
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});
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test("Model: set and unset", function() {
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expect(8);
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var a = new Backbone.Model({id: 'id', foo: 1, bar: 2, baz: 3});
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var changeCount = 0;
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a.on("change:foo", function() { changeCount += 1; });
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a.set({'foo': 2});
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ok(a.get('foo') == 2, "Foo should have changed.");
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ok(changeCount == 1, "Change count should have incremented.");
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a.set({'foo': 2}); // set with value that is not new shouldn't fire change event
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ok(a.get('foo') == 2, "Foo should NOT have changed, still 2");
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ok(changeCount == 1, "Change count should NOT have incremented.");
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a.validate = function(attrs) {
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equal(attrs.foo, void 0, "don't ignore values when unsetting");
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};
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a.unset('foo');
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equal(a.get('foo'), void 0, "Foo should have changed");
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delete a.validate;
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ok(changeCount == 2, "Change count should have incremented for unset.");
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a.unset('id');
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equal(a.id, undefined, "Unsetting the id should remove the id property.");
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});
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test("Model: multiple unsets", function() {
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var i = 0;
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var counter = function(){ i++; };
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var model = new Backbone.Model({a: 1});
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model.on("change:a", counter);
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model.set({a: 2});
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model.unset('a');
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model.unset('a');
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equal(i, 2, 'Unset does not fire an event for missing attributes.');
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});
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test("Model: unset and changedAttributes", function() {
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var model = new Backbone.Model({a: 1});
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model.unset('a', {silent: true});
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var changedAttributes = model.changedAttributes();
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ok('a' in changedAttributes, 'changedAttributes should contain unset properties');
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changedAttributes = model.changedAttributes();
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ok('a' in changedAttributes, 'changedAttributes should contain unset properties when running changedAttributes again after an unset.');
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});
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test("Model: using a non-default id attribute.", function() {
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var MongoModel = Backbone.Model.extend({idAttribute : '_id'});
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var model = new MongoModel({id: 'eye-dee', _id: 25, title: 'Model'});
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equal(model.get('id'), 'eye-dee');
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equal(model.id, 25);
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equal(model.isNew(), false);
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model.unset('_id');
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equal(model.id, undefined);
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equal(model.isNew(), true);
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});
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test("Model: set an empty string", function() {
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var model = new Backbone.Model({name : "Model"});
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model.set({name : ''});
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equal(model.get('name'), '');
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});
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test("Model: clear", function() {
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var changed;
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var model = new Backbone.Model({id: 1, name : "Model"});
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model.on("change:name", function(){ changed = true; });
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model.on("change", function() {
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var changedAttrs = model.changedAttributes();
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ok('name' in changedAttrs);
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});
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model.clear();
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equal(changed, true);
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equal(model.get('name'), undefined);
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});
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test("Model: defaults", function() {
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var Defaulted = Backbone.Model.extend({
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defaults: {
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"one": 1,
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"two": 2
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}
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});
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var model = new Defaulted({two: null});
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equal(model.get('one'), 1);
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equal(model.get('two'), null);
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Defaulted = Backbone.Model.extend({
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defaults: function() {
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return {
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"one": 3,
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"two": 4
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};
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}
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});
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var model = new Defaulted({two: null});
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equal(model.get('one'), 3);
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equal(model.get('two'), null);
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});
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test("Model: change, hasChanged, changedAttributes, previous, previousAttributes", function() {
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var model = new Backbone.Model({name : "Tim", age : 10});
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equal(model.changedAttributes(), false);
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model.on('change', function() {
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ok(model.hasChanged('name'), 'name changed');
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ok(!model.hasChanged('age'), 'age did not');
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ok(_.isEqual(model.changedAttributes(), {name : 'Rob'}), 'changedAttributes returns the changed attrs');
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equal(model.previous('name'), 'Tim');
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ok(_.isEqual(model.previousAttributes(), {name : "Tim", age : 10}), 'previousAttributes is correct');
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});
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model.set({name : 'Rob'}, {silent : true});
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equal(model.hasChanged(), true);
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equal(model.hasChanged('name'), true);
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model.change();
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equal(model.get('name'), 'Rob');
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});
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test("Model: changedAttributes", function() {
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var model = new Backbone.Model({a: 'a', b: 'b'});
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equal(model.changedAttributes(), false);
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equal(model.changedAttributes({a: 'a'}), false);
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equal(model.changedAttributes({a: 'b'}).a, 'b');
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});
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test("Model: change with options", function() {
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var value;
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var model = new Backbone.Model({name: 'Rob'});
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model.on('change', function(model, options) {
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value = options.prefix + model.get('name');
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});
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model.set({name: 'Bob'}, {silent: true});
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model.change({prefix: 'Mr. '});
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equal(value, 'Mr. Bob');
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model.set({name: 'Sue'}, {prefix: 'Ms. '});
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equal(value, 'Ms. Sue');
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});
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test("Model: change after initialize", function () {
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var changed = 0;
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var attrs = {id: 1, label: 'c'};
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var obj = new Backbone.Model(attrs);
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obj.on('change', function() { changed += 1; });
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obj.set(attrs);
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equal(changed, 0);
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});
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test("Model: save within change event", function () {
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var model = new Backbone.Model({firstName : "Taylor", lastName: "Swift"});
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model.on('change', function () {
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model.save();
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ok(_.isEqual(lastRequest.model, model));
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});
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model.set({lastName: 'Hicks'});
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});
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test("Model: validate after save", function() {
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var lastError, model = new Backbone.Model();
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model.validate = function(attrs) {
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if (attrs.admin) return "Can't change admin status.";
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};
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model.sync = function(method, model, options) {
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options.success.call(this, {admin: true});
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};
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model.save(null, {error: function(model, error) {
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lastError = error;
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}});
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equal(lastError, "Can't change admin status.");
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});
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test("Model: isValid", function() {
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var model = new Backbone.Model({valid: true});
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model.validate = function(attrs) {
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if (!attrs.valid) return "invalid";
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};
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equal(model.isValid(), true);
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equal(model.set({valid: false}), false);
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equal(model.isValid(), true);
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ok(model.set('valid', false, {silent: true}));
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equal(model.isValid(), false);
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});
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test("Model: save", function() {
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doc.save({title : "Henry V"});
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equal(lastRequest.method, 'update');
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ok(_.isEqual(lastRequest.model, doc));
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});
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test("Model: save in positional style", function() {
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var model = new Backbone.Model();
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model.sync = function(method, model, options) {
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options.success();
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};
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model.save('title', 'Twelfth Night');
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equal(model.get('title'), 'Twelfth Night');
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});
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test("Model: fetch", function() {
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doc.fetch();
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equal(lastRequest.method, 'read');
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ok(_.isEqual(lastRequest.model, doc));
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});
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test("Model: destroy", function() {
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doc.destroy();
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equal(lastRequest.method, 'delete');
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ok(_.isEqual(lastRequest.model, doc));
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});
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test("Model: non-persisted destroy", function() {
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var a = new Backbone.Model({ 'foo': 1, 'bar': 2, 'baz': 3});
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a.sync = function() { throw "should not be called"; };
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a.destroy();
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ok(true, "non-persisted model should not call sync");
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});
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test("Model: validate", function() {
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var lastError;
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var model = new Backbone.Model();
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model.validate = function(attrs) {
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if (attrs.admin != this.get('admin')) return "Can't change admin status.";
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};
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model.on('error', function(model, error) {
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lastError = error;
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});
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var result = model.set({a: 100});
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equal(result, model);
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equal(model.get('a'), 100);
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equal(lastError, undefined);
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result = model.set({admin: true}, {silent: true});
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equal(model.get('admin'), true);
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result = model.set({a: 200, admin: false});
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equal(lastError, "Can't change admin status.");
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equal(result, false);
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equal(model.get('a'), 100);
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});
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test("Model: validate on unset and clear", function() {
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var error;
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var model = new Backbone.Model({name: "One"});
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model.validate = function(attrs) {
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if (!attrs.name) {
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error = true;
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return "No thanks.";
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}
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};
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model.set({name: "Two"});
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equal(model.get('name'), 'Two');
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equal(error, undefined);
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model.unset('name');
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equal(error, true);
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equal(model.get('name'), 'Two');
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model.clear();
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equal(model.get('name'), 'Two');
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delete model.validate;
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model.clear();
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equal(model.get('name'), undefined);
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});
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test("Model: validate with error callback", function() {
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var lastError, boundError;
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var model = new Backbone.Model();
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model.validate = function(attrs) {
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if (attrs.admin) return "Can't change admin status.";
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};
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var callback = function(model, error) {
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lastError = error;
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};
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model.on('error', function(model, error) {
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boundError = true;
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});
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var result = model.set({a: 100}, {error: callback});
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equal(result, model);
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equal(model.get('a'), 100);
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equal(lastError, undefined);
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equal(boundError, undefined);
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result = model.set({a: 200, admin: true}, {error: callback});
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equal(result, false);
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equal(model.get('a'), 100);
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equal(lastError, "Can't change admin status.");
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equal(boundError, undefined);
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});
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test("Model: defaults always extend attrs (#459)", function() {
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var Defaulted = Backbone.Model.extend({
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defaults: {one: 1},
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initialize : function(attrs, opts) {
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equal(this.attributes.one, 1);
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}
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});
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var providedattrs = new Defaulted({});
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var emptyattrs = new Defaulted();
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});
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test("Model: Inherit class properties", function() {
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var Parent = Backbone.Model.extend({
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instancePropSame: function() {},
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instancePropDiff: function() {}
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}, {
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classProp: function() {}
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});
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var Child = Parent.extend({
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instancePropDiff: function() {}
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});
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var adult = new Parent;
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var kid = new Child;
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equal(Child.classProp, Parent.classProp);
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notEqual(Child.classProp, undefined);
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equal(kid.instancePropSame, adult.instancePropSame);
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notEqual(kid.instancePropSame, undefined);
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notEqual(Child.prototype.instancePropDiff, Parent.prototype.instancePropDiff);
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notEqual(Child.prototype.instancePropDiff, undefined);
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});
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test("Model: Nested change events don't clobber previous attributes", function() {
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var A = Backbone.Model.extend({
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initialize: function() {
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this.on("change:state", function(a, newState) {
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equal(a.previous('state'), undefined);
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equal(newState, 'hello');
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// Fire a nested change event.
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this.set({ other: "whatever" });
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});
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}
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});
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var B = Backbone.Model.extend({
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initialize: function() {
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this.get("a").on("change:state", function(a, newState) {
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equal(a.previous('state'), undefined);
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equal(newState, 'hello');
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});
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}
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});
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var a = new A();
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var b = new B({a: a});
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a.set({state: 'hello'});
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});
|
|
|
|
test("hasChanged/set should use same comparison", function() {
|
|
expect(2);
|
|
var changed = 0, model = new Backbone.Model({a: null});
|
|
model.on('change', function() {
|
|
ok(this.hasChanged('a'));
|
|
})
|
|
.on('change:a', function() {
|
|
changed++;
|
|
})
|
|
.set({a: undefined});
|
|
equal(changed, 1);
|
|
});
|
|
|
|
test("#582, #425, change:attribute callbacks should fire after all changes have occurred", 9, function() {
|
|
var model = new Backbone.Model;
|
|
|
|
var assertion = function() {
|
|
equal(model.get('a'), 'a');
|
|
equal(model.get('b'), 'b');
|
|
equal(model.get('c'), 'c');
|
|
};
|
|
|
|
model.on('change:a', assertion);
|
|
model.on('change:b', assertion);
|
|
model.on('change:c', assertion);
|
|
|
|
model.set({a: 'a', b: 'b', c: 'c'});
|
|
});
|
|
|
|
test("#871, set with attributes property", function() {
|
|
var model = new Backbone.Model();
|
|
model.set({attributes: true});
|
|
ok(model.has('attributes'));
|
|
});
|
|
|
|
test("set value regardless of equality/change", function() {
|
|
var model = new Backbone.Model({x: []});
|
|
var a = [];
|
|
model.set({x: a});
|
|
ok(model.get('x') === a);
|
|
});
|
|
|
|
test("unset fires change for undefined attributes", 1, function() {
|
|
var model = new Backbone.Model({x: undefined});
|
|
model.on('change:x', function(){ ok(true); });
|
|
model.unset('x');
|
|
});
|
|
|
|
test("set: undefined values", function() {
|
|
var model = new Backbone.Model({x: undefined});
|
|
ok('x' in model.attributes);
|
|
});
|
|
|
|
test("change fires change:attr", 1, function() {
|
|
var model = new Backbone.Model({x: 1});
|
|
model.set({x: 2}, {silent: true});
|
|
model.on('change:x', function(){ ok(true); });
|
|
model.change();
|
|
});
|
|
|
|
test("hasChanged is false after original values are set", function() {
|
|
var model = new Backbone.Model({x: 1});
|
|
model.on('change:x', function(){ ok(false); });
|
|
model.set({x: 2}, {silent: true});
|
|
ok(model.hasChanged());
|
|
model.set({x: 1}, {silent: true});
|
|
ok(!model.hasChanged());
|
|
});
|
|
|
|
test("save with `wait` succeeds without `validate`", function() {
|
|
var model = new Backbone.Model();
|
|
model.save({x: 1}, {wait: true});
|
|
ok(lastRequest.model === model);
|
|
});
|
|
|
|
test("`hasChanged` for falsey keys", function() {
|
|
var model = new Backbone.Model();
|
|
model.set({x: true}, {silent: true});
|
|
ok(!model.hasChanged(0));
|
|
ok(!model.hasChanged(''));
|
|
});
|
|
|
|
test("`previous` for falsey keys", function() {
|
|
var model = new Backbone.Model({0: true, '': true});
|
|
model.set({0: false, '': false}, {silent: true});
|
|
equal(model.previous(0), true);
|
|
equal(model.previous(''), true);
|
|
});
|
|
|
|
test("`save` with `wait` sends correct attributes", function() {
|
|
var changed = 0;
|
|
var model = new Backbone.Model({x: 1, y: 2});
|
|
model.on('change:x', function() { changed++; });
|
|
model.save({x: 3}, {wait: true});
|
|
deepEqual(JSON.parse(ajaxParams.data), {x: 3, y: 2});
|
|
equal(model.get('x'), 1);
|
|
equal(changed, 0);
|
|
lastRequest.options.success({});
|
|
equal(model.get('x'), 3);
|
|
equal(changed, 1);
|
|
});
|
|
|
|
test("save with wait validates attributes", 1, function() {
|
|
var model = new Backbone.Model();
|
|
model.validate = function() { ok(true); };
|
|
model.save({x: 1}, {wait: true});
|
|
});
|
|
|
|
test("nested `set` during `'change:attr'`", function() {
|
|
var events = [];
|
|
var model = new Backbone.Model();
|
|
model.on('all', function(event) { events.push(event); });
|
|
model.on('change', function() {
|
|
model.set({z: true}, {silent:true});
|
|
});
|
|
model.on('change:x', function() {
|
|
model.set({y: true});
|
|
});
|
|
model.set({x: true});
|
|
deepEqual(events, ['change:y', 'change:x', 'change']);
|
|
events = [];
|
|
model.change();
|
|
deepEqual(events, ['change:z', 'change']);
|
|
});
|
|
|
|
test("nested `change` only fires once", 1, function() {
|
|
var model = new Backbone.Model();
|
|
model.on('change', function() {
|
|
ok(true);
|
|
model.change();
|
|
});
|
|
model.set({x: true});
|
|
});
|
|
|
|
test("no `'change'` event if no changes", function() {
|
|
var model = new Backbone.Model();
|
|
model.on('change', function() { ok(false); });
|
|
model.change();
|
|
});
|
|
|
|
test("nested `set` during `'change'`", 6, function() {
|
|
var count = 0;
|
|
var model = new Backbone.Model();
|
|
model.on('change', function() {
|
|
switch(count++) {
|
|
case 0:
|
|
deepEqual(this.changedAttributes(), {x: true});
|
|
equal(model.previous('x'), undefined);
|
|
model.set({y: true});
|
|
break;
|
|
case 1:
|
|
deepEqual(this.changedAttributes(), {y: true});
|
|
equal(model.previous('x'), true);
|
|
model.set({z: true});
|
|
break;
|
|
case 2:
|
|
deepEqual(this.changedAttributes(), {z: true});
|
|
equal(model.previous('y'), true);
|
|
break;
|
|
default:
|
|
ok(false);
|
|
}
|
|
});
|
|
model.set({x: true});
|
|
});
|
|
|
|
test("nested `'change'` with silent", 3, function() {
|
|
var count = 0;
|
|
var model = new Backbone.Model();
|
|
model.on('change:y', function() { ok(true); });
|
|
model.on('change', function() {
|
|
switch(count++) {
|
|
case 0:
|
|
deepEqual(this.changedAttributes(), {x: true});
|
|
model.set({y: true}, {silent: true});
|
|
break;
|
|
case 1:
|
|
deepEqual(this.changedAttributes(), {y: true, z: true});
|
|
break;
|
|
default:
|
|
ok(false);
|
|
}
|
|
});
|
|
model.set({x: true});
|
|
model.set({z: true});
|
|
});
|
|
|
|
test("nested `'change:attr'` with silent", 1, function() {
|
|
var model = new Backbone.Model();
|
|
model.on('change:y', function(){ ok(true); });
|
|
model.on('change', function() {
|
|
model.set({y: true}, {silent: true});
|
|
model.set({z: true});
|
|
});
|
|
model.set({x: true});
|
|
});
|
|
|
|
test("multiple nested changes with silent", 1, function() {
|
|
var model = new Backbone.Model();
|
|
model.on('change:x', function() {
|
|
model.set({y: 1}, {silent: true});
|
|
model.set({y: 2});
|
|
});
|
|
model.on('change:y', function(model, val) {
|
|
equal(val, 2);
|
|
});
|
|
model.set({x: true});
|
|
model.change();
|
|
});
|
|
|
|
test("multiple nested changes with silent", function() {
|
|
var changes = [];
|
|
var model = new Backbone.Model();
|
|
model.on('change:b', function(model, val) { changes.push(val); });
|
|
model.on('change', function() {
|
|
model.set({b: 1});
|
|
model.set({b: 2}, {silent: true});
|
|
});
|
|
model.set({b: 0});
|
|
deepEqual(changes, [0, 1, 1]);
|
|
model.change();
|
|
deepEqual(changes, [0, 1, 1, 2, 1]);
|
|
});
|
|
|
|
test("nested set multiple times", 1, function() {
|
|
var model = new Backbone.Model();
|
|
model.on('change:b', function() {
|
|
ok(true);
|
|
});
|
|
model.on('change:a', function() {
|
|
model.set({b: true});
|
|
model.set({b: true});
|
|
});
|
|
model.set({a: true});
|
|
});
|
|
|
|
test("Backbone.wrapError triggers `'error'`", 12, function() {
|
|
var resp = {};
|
|
var options = {};
|
|
var model = new Backbone.Model();
|
|
model.on('error', error);
|
|
var callback = Backbone.wrapError(null, model, options);
|
|
callback(model, resp);
|
|
callback(resp);
|
|
callback = Backbone.wrapError(error, model, options);
|
|
callback(model, resp);
|
|
callback(resp);
|
|
function error(_model, _resp, _options) {
|
|
ok(model === _model);
|
|
ok(resp === _resp);
|
|
ok(options === _options);
|
|
}
|
|
});
|
|
|
|
});
|