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diff --git a/test/ApiSpecs.js b/test/ApiSpecs.js
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+describe('api', function(){
+
+  it('ShouldReturnTypeOf', function(){
+    assertEquals("undefined", angular.Object.typeOf(undefined));
+    assertEquals("null", angular.Object.typeOf(null));
+    assertEquals("object", angular.Collection.typeOf({}));
+    assertEquals("array", angular.Array.typeOf([]));
+    assertEquals("string", angular.Object.typeOf(""));
+    assertEquals("date", angular.Object.typeOf(new Date()));
+    assertEquals("element", angular.Object.typeOf(document.body));
+    assertEquals($function, angular.Object.typeOf(function(){}));
+  });
+
+  it('ShouldReturnSize', function(){
+    assertEquals(0, angular.Collection.size({}));
+    assertEquals(1, angular.Collection.size({a:"b"}));
+    assertEquals(0, angular.Object.size({}));
+    assertEquals(1, angular.Array.size([0]));
+  });
+
+  it('should sum', function(){
+    assertEquals(3, angular.Array.sum([{a:"1"}, {a:"2"}], 'a'));
+  });
+
+  it('SumContainingNaN', function(){
+    assertEquals(1, angular.Array.sum([{a:1}, {a:Number.NaN}], 'a'));
+    assertEquals(1, angular.Array.sum([{a:1}, {a:Number.NaN}], function($){return $.a;}));
+  });
+
+  it('Index', function(){
+    assertEquals(angular.Array.indexOf(['a'], 'a'), 0);
+    assertEquals(angular.Array.indexOf(['a', 'b'], 'a'), 0);
+    assertEquals(angular.Array.indexOf(['b', 'a'], 'a'), 1);
+    assertEquals(angular.Array.indexOf(['b', 'b'],'x'), -1);
+  });
+
+  it('Remove', function(){
+    var items = ['a', 'b', 'c'];
+    assertEquals(angular.Array.remove(items, 'q'), 'q');
+    assertEquals(items.length, 3);
+
+    assertEquals(angular.Array.remove(items, 'b'), 'b');
+    assertEquals(items.length, 2);
+
+    assertEquals(angular.Array.remove(items, 'a'), 'a');
+    assertEquals(items.length, 1);
+
+    assertEquals(angular.Array.remove(items, 'c'), 'c');
+    assertEquals(items.length, 0);
+
+    assertEquals(angular.Array.remove(items, 'q'), 'q');
+    assertEquals(items.length, 0);
+  });
+
+  describe('filter', function(){
+
+    it('Filter', function() {
+      var items = ["MIsKO", {name:"shyam"}, ["adam"], 1234];
+      assertEquals(4, angular.Array.filter(items, "").length);
+      assertEquals(4, angular.Array.filter(items, undefined).length);
+
+      assertEquals(1, angular.Array.filter(items, 'iSk').length);
+      assertEquals("MIsKO", angular.Array.filter(items, 'isk')[0]);
+
+      assertEquals(1, angular.Array.filter(items, 'yam').length);
+      assertEquals(items[1], angular.Array.filter(items, 'yam')[0]);
+
+      assertEquals(1, angular.Array.filter(items, 'da').length);
+      assertEquals(items[2], angular.Array.filter(items, 'da')[0]);
+
+      assertEquals(1, angular.Array.filter(items, '34').length);
+      assertEquals(1234, angular.Array.filter(items, '34')[0]);
+
+      assertEquals(0, angular.Array.filter(items, "I don't exist").length);
+    });
+
+    it('ShouldNotFilterOnSystemData', function() {
+      assertEquals("", "".charAt(0)); // assumption
+      var items = [{$name:"misko"}];
+      assertEquals(0, angular.Array.filter(items, "misko").length);
+    });
+
+    it('FilterOnSpecificProperty', function(){
+      var items = [{ignore:"a", name:"a"}, {ignore:"a", name:"abc"}];
+      assertEquals(2, angular.Array.filter(items, {}).length);
+
+      assertEquals(2, angular.Array.filter(items, {name:'a'}).length);
+
+      assertEquals(1, angular.Array.filter(items, {name:'b'}).length);
+      assertEquals("abc", angular.Array.filter(items, {name:'b'})[0].name);
+    });
+
+    it('FilterOnFunction', function(){
+      var items = [{name:"a"}, {name:"abc", done:true}];
+      assertEquals(1, angular.Array.filter(items, function(i){return i.done;}).length);
+    });
+
+    it('FilterIsAndFunction', function(){
+      var items = [{first:"misko", last:"hevery"},
+                   {first:"adam", last:"abrons"}];
+
+      assertEquals(2, angular.Array.filter(items, {first:'', last:''}).length);
+      assertEquals(1, angular.Array.filter(items, {first:'', last:'hevery'}).length);
+      assertEquals(0, angular.Array.filter(items, {first:'adam', last:'hevery'}).length);
+      assertEquals(1, angular.Array.filter(items, {first:'misko', last:'hevery'}).length);
+      assertEquals(items[0], angular.Array.filter(items, {first:'misko', last:'hevery'})[0]);
+    });
+
+    it('FilterNot', function(){
+      var items = ["misko", "adam"];
+
+      assertEquals(1, angular.Array.filter(items, '!isk').length);
+      assertEquals(items[1], angular.Array.filter(items, '!isk')[0]);
+    });
+  });
+
+
+  it('Add', function(){
+    var add = angular.Array.add;
+    assertJsonEquals([{}, "a"], add(add([]),"a"));
+  });
+
+  it('Count', function(){
+    var array = [{name:'a'},{name:'b'},{name:''}];
+    var obj = {};
+
+    assertEquals(3, angular.Array.count(array));
+    assertEquals(2, angular.Array.count(array, 'name'));
+    assertEquals(1, angular.Array.count(array, 'name=="a"'));
+  });
+
+  describe('orderBy', function(){
+    var orderBy = angular.Array.orderBy;
+
+    it('ShouldSortArray', function(){
+      assertEquals([2,15], angular.Array.orderBy([15,2]));
+      assertEquals(["a","B", "c"], angular.Array.orderBy(["c","B", "a"]));
+      assertEquals([15,"2"], angular.Array.orderBy([15,"2"]));
+      assertEquals(["15","2"], angular.Array.orderBy(["15","2"]));
+      assertJsonEquals([{a:2},{a:15}], angular.Array.orderBy([{a:15},{a:2}], 'a'));
+      assertJsonEquals([{a:2},{a:15}], angular.Array.orderBy([{a:15},{a:2}], 'a', "F"));
+    });
+
+    it('ShouldSortArrayInReverse', function(){
+      assertJsonEquals([{a:15},{a:2}], angular.Array.orderBy([{a:15},{a:2}], 'a', true));
+      assertJsonEquals([{a:15},{a:2}], angular.Array.orderBy([{a:15},{a:2}], 'a', "T"));
+      assertJsonEquals([{a:15},{a:2}], angular.Array.orderBy([{a:15},{a:2}], 'a', "reverse"));
+    });
+
+    it('ShouldSortArrayByPredicate', function(){
+      assertJsonEquals([{a:2, b:1},{a:15, b:1}],
+          angular.Array.orderBy([{a:15, b:1},{a:2, b:1}], ['a', 'b']));
+      assertJsonEquals([{a:2, b:1},{a:15, b:1}],
+          angular.Array.orderBy([{a:15, b:1},{a:2, b:1}], ['b', 'a']));
+      assertJsonEquals([{a:15, b:1},{a:2, b:1}],
+          angular.Array.orderBy([{a:15, b:1},{a:2, b:1}], ['+b', '-a']));
+    });
+
+    it('should use function', function(){
+      expect(
+        orderBy(
+          [{a:15, b:1},{a:2, b:1}], 
+          function(value){ return value.a; }
+        )
+      ).toEqual([{a:2, b:1},{a:15, b:1}]);
+
+    });
+
+  });
+
+  it('QuoteString', function(){
+    assertEquals(angular.String.quote('a'), '"a"');
+    assertEquals(angular.String.quote('\\'), '"\\\\"');
+    assertEquals(angular.String.quote("'a'"), '"\'a\'"');
+    assertEquals(angular.String.quote('"a"'), '"\\"a\\""');
+    assertEquals(angular.String.quote('\n\f\r\t'), '"\\n\\f\\r\\t"');
+  });
+
+  it('QuoteStringBug', function(){
+    assertEquals('"7\\\\\\\"7"', angular.String.quote("7\\\"7"));
+  });
+
+  it('QuoteUnicode', function(){
+    assertEquals('"abc\\u00a0def"', angular.String.quoteUnicode('abc\u00A0def'));
+  });
+
+  it('DateToUTC', function(){
+    var date = new Date("Sep 10 2003 13:02:03 GMT");
+    assertEquals("date", angular.Object.typeOf(date));
+    assertEquals("2003-09-10T13:02:03Z", angular.Date.toString(date));
+  });
+
+  it('StringFromUTC', function(){
+    var date = angular.String.toDate("2003-09-10T13:02:03Z");
+    assertEquals("date", angular.Object.typeOf(date));
+    assertEquals("2003-09-10T13:02:03Z", angular.Date.toString(date));
+    assertEquals("str", angular.String.toDate("str"));
+  });
+
+  it('ObjectShouldHaveExtend', function(){
+    assertEquals({a:1, b:2}, angular.Object.extend({a:1}, {b:2}));
+  });
+
+});
+