jquery-mobile/tests/unit/navigation/navigation_core.js

/*
 * mobile navigation unit tests
 */
var perspective = "ui-mobile-viewport-perspective",
		transitioning = "ui-mobile-viewport-transitioning",
    animationCompleteFn = $.fn.animationComplete,

		removeClasses = function(){
			$("body").removeClass([perspective, transitioning].join(" "));
		};

module('jquery.mobile.navigation.js', {
	teardown: function(){
		// unmock animation complete
		$.fn.animationComplete = animationCompleteFn;

		removeClasses();
	}});

test( "changePage applys perspective class to mobile viewport for flip", function(){
	//stub to prevent class removal
	$.fn.animationComplete = function(){};

	$("#foo > a").click();

	ok($("body").hasClass(perspective), "has perspective class");
});


test( "changePage applys does not apply perspective class to mobile viewport for transitions other than flip", function(){
	//stub to prevent class removal
	$.fn.animationComplete = function(){};

	$("#bar > a").click();

	ok(!$("body").hasClass(perspective), "doesn't have perspective class");
});

test( "changePage applys transition class to mobile viewport for default transition", function(){
	//stub to prevent class removal
	$.fn.animationComplete = function(){};

	$("#baz > a").click();

	ok($("body").hasClass(transitioning), "has transitioning class");
});