fullcalendar/tests/util/Promise.js

describe('Promise', function() {
	var Promise = $.fullCalendar.Promise;

	describe('when result given at instantiation', function() {

		it('executes the then function immediately', function() {
			var p = Promise.resolve(7);
			var executedThen = false;

			p.then(function(val) {
				executedThen = true;
				expect(val).toBe(7);
			});

			expect(executedThen).toBe(true);
		});

		it('forwards on the result of the then function', function() {
			var p = Promise.resolve(7);
			var executedSecondThen = false;

			p.then(function(val) {
				expect(val).toBe(7);
				return 8;
			}).then(function(val) {
				expect(val).toBe(8);
				executedSecondThen = true;
			});

			expect(executedSecondThen).toBe(true);
		});
	});
});