beforeEach(function() {

	// don't show warnings about deprecated methods like `moment.lang`, etc.
	// at some point we'll require moment version above 2.8.
	// until then, it's too annoying to support two versions.
	// (not the best place for this)
	moment.suppressDeprecationWarnings = true;

	jasmine.addMatchers({

		// Moment and Duration

		toEqualMoment: function() {
			return {
				compare: function(actual, expected) {
					var actualStr = $.fullCalendar.moment.parseZone(actual).format();
					var expectedStr = $.fullCalendar.moment.parseZone(expected).format();
					var result = {
						pass: actualStr === expectedStr
					};
					if (!result.pass) {
						result.message = 'Moment ' + actualStr + ' does not equal ' + expectedStr;
					}
					return result;
				}
			};
		},
		toEqualNow: function() {
			return {
				compare: function(actual) {
					var actualMoment = $.fullCalendar.moment.parseZone(actual);
					var result = {
						pass: Math.abs(actualMoment - new Date()) < 1000 // within a second of current datetime
					};
					if (!result.pass) {
						result.message = 'Moment ' + actualMoment.format() + ' is not close enough to now';
					}
					return result;
				}
			};
		},
		toEqualDuration: function() {
			return {
				compare: function(actual, expected) {
					var actualStr = serializeDuration(moment.duration(actual));
					var expectedStr = serializeDuration(moment.duration(expected));
					var result = {
						pass: actualStr === expectedStr
					};
					if (!result.pass) {
						result.message = 'Duration ' + actualStr + ' does not equal ' + expectedStr;
					}
					return result;
				}
			};
		},


		// Geometry

		toBeBoundedBy: function() {
			return {
				compare: function(actual, expected) {
					var outer = getBounds(expected);
					var inner = getBounds(actual);
					var result = {
						pass: inner.left >= outer.left &&
							inner.right <= outer.right &&
							inner.top >= outer.top &&
							inner.bottom <= outer.bottom
					};
					if (!result.pass) {
						result.message = 'Element does not bound other element';
					}
					return result;
				}
			};
		}

	});

	function serializeDuration(duration) {
		return Math.floor(duration.asDays()) + '.' +
			pad(duration.hours(), 2) + ':' +
			pad(duration.minutes(), 2) + ':' +
			pad(duration.seconds(), 2) + '.' +
			pad(duration.milliseconds(), 3);
	}

	function pad(n, width) {
		n = n + '';
		return n.length >= width ? n : new Array(width - n.length + 1).join('0') + n;
	}

	function getBounds(node) {
		var el = $(node);
		var offset = el.offset();

		return {
			top: offset.top,
			left: offset.left,
			right: offset.left + el.outerWidth(),
			bottom: offset.top + el.outerHeight()
		};
	}

});