Differential D4581 Diff 9612 externals/javelin/src/core/__tests__/util.js

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externals/javelin/src/core/tests/util.js

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				/**
				* @requires javelin-util
				*/

				describe('JX.isArray', function() {

				it('should correctly identify an array', function() {
				expect(JX.isArray([1, 2, 3])).toBe(true);

				expect(JX.isArray([])).toBe(true);
				});

				it('should return false on anything that is not an array', function() {
				expect(JX.isArray(1)).toBe(false);
				expect(JX.isArray('a string')).toBe(false);
				expect(JX.isArray(true)).toBe(false);
				expect(JX.isArray(/regex/)).toBe(false);

				expect(JX.isArray(new String('a super string'))).toBe(false);
				expect(JX.isArray(new Number(42))).toBe(false);
				expect(JX.isArray(new Boolean(false))).toBe(false);

				expect(JX.isArray({})).toBe(false);
				expect(JX.isArray({'0': 1, '1': 2, length: 2})).toBe(false);
				expect(JX.isArray((function(){
				return arguments;
				})('I', 'want', 'to', 'trick', 'you'))).toBe(false);
				});

				it('should identify an array from another context as an array', function() {
				var iframe = document.createElement('iframe');
				var name = iframe.name = 'javelin-iframe-test';
				iframe.style.display = 'none';

				document.body.insertBefore(iframe, document.body.firstChild);
				var doc = iframe.contentWindow.document;
				doc.write(
				'<script>parent.MaybeArray = Array;</script>'
				);

				var array = MaybeArray(1, 2, 3);
				var array2 = new MaybeArray(1);
				array2[0] = 5;

				expect(JX.isArray(array)).toBe(true);
				expect(JX.isArray(array2)).toBe(true);
				});

				});

				describe('JX.bind', function() {

				it('should bind a function to a context', function() {
				var object = {a: 5, b: 3};
				JX.bind(object, function() {
				object.b = 1;
				})();
				expect(object).toEqual({a: 5, b: 1});
				});

				it('should bind a function without context', function() {
				var called;
				JX.bind(null, function() {
				called = true;
				})();
				expect(called).toBe(true);
				});

				it('should bind with arguments', function() {
				var list = [];
				JX.bind(null, function() {
				list.push.apply(list, JX.$A(arguments));
				}, 'a', 2, 'c', 4)();
				expect(list).toEqual(['a', 2, 'c', 4]);
				});

				it('should allow to pass additional arguments', function() {
				var list = [];
				JX.bind(null, function() {
				list.push.apply(list, JX.$A(arguments));
				}, 'a', 2)('c', 4);
				expect(list).toEqual(['a', 2, 'c', 4]);
				});

				});