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/test/collection.js

https://github.com/olleolleolle/backbone
JavaScript | 119 lines | 103 code | 16 blank | 0 comment | 0 complexity | 3dbc13da1455f503d35ca6d6d76c8041 MD5 | raw file
  1. $(document).ready(function() {
  2. module("Backbone.Collection");
  3. window.lastRequest = null;
  4. Backbone.sync = function() {
  5. lastRequest = _.toArray(arguments);
  6. };
  7. var a = new Backbone.Model({id: 4, label: 'a'});
  8. var b = new Backbone.Model({id: 3, label: 'b'});
  9. var c = new Backbone.Model({id: 2, label: 'c'});
  10. var d = new Backbone.Model({id: 1, label: 'd'});
  11. var e = null;
  12. var col = window.col = new Backbone.Collection([a,b,c,d]);
  13. test("Collection: new and sort", function() {
  14. equals(col.first(), a, "a should be first");
  15. equals(col.last(), d, "d should be last");
  16. col.comparator = function(model) { return model.id; };
  17. col.sort();
  18. equals(col.first(), d, "d should be first");
  19. equals(col.last(), a, "a should be last");
  20. equals(col.length, 4);
  21. });
  22. test("Collection: get, getByCid", function() {
  23. equals(col.get(1), d);
  24. equals(col.get(3), b);
  25. equals(col.getByCid(col.first().cid), col.first());
  26. });
  27. test("Collection: at", function() {
  28. equals(col.at(2), b);
  29. });
  30. test("Collection: pluck", function() {
  31. equals(col.pluck('label').join(' '), 'd c b a');
  32. });
  33. test("Collection: add", function() {
  34. var added = null;
  35. col.bind('add', function(model){ added = model.get('label'); });
  36. e = new Backbone.Model({id: 0, label : 'e'});
  37. col.add(e);
  38. equals(added, 'e');
  39. equals(col.length, 5);
  40. equals(col.first(), e);
  41. });
  42. test("Collection: remove", function() {
  43. var removed = null;
  44. col.bind('remove', function(model){ removed = model.get('label'); });
  45. col.remove(e);
  46. equals(removed, 'e');
  47. equals(col.length, 4);
  48. equals(col.first(), d);
  49. });
  50. test("Collection: fetch", function() {
  51. col.fetch();
  52. equals(lastRequest[0], 'read');
  53. equals(lastRequest[1], col);
  54. });
  55. test("Collection: create", function() {
  56. var model = col.create({label: 'f'});
  57. equals(lastRequest[0], 'create');
  58. equals(lastRequest[1], model);
  59. equals(model.get('label'), 'f');
  60. equals(model.collection, col);
  61. });
  62. test("collection: initialize", function() {
  63. var Collection = Backbone.Collection.extend({
  64. initialize: function() {
  65. this.one = 1;
  66. }
  67. });
  68. var coll = new Collection;
  69. equals(coll.one, 1);
  70. });
  71. test("Collection: Underscore methods", function() {
  72. equals(col.map(function(model){ return model.get('label'); }).join(' '), 'd c b a');
  73. equals(col.any(function(model){ return model.id === 100; }), false);
  74. equals(col.any(function(model){ return model.id === 1; }), true);
  75. equals(col.indexOf(b), 2);
  76. equals(col.size(), 4);
  77. equals(col.rest().length, 3);
  78. ok(!_.include(col.rest()), a);
  79. ok(!_.include(col.rest()), d);
  80. ok(!col.isEmpty());
  81. ok(!_.include(col.without(d)), d);
  82. equals(col.max(function(model){ return model.id; }).id, 4);
  83. equals(col.min(function(model){ return model.id; }).id, 1);
  84. });
  85. test("Collection: refresh", function() {
  86. var refreshed = 0;
  87. var models = col.models;
  88. col.bind('refresh', function() { refreshed += 1; });
  89. col.refresh([]);
  90. equals(refreshed, 1);
  91. equals(col.length, 0);
  92. equals(col.last(), null);
  93. col.refresh(models);
  94. equals(refreshed, 2);
  95. equals(col.length, 4);
  96. equals(col.last(), a);
  97. col.refresh(_.map(models, function(m){ return m.attributes; }));
  98. equals(refreshed, 3);
  99. equals(col.length, 4);
  100. ok(col.last() !== a);
  101. ok(_.isEqual(col.last().attributes, a.attributes));
  102. });
  103. });