MyMongodb/node_modules/jquery/test/unit/offset.js

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(function() {

if ( !jQuery.fn.offset ) {
	return;
}

var supportsScroll, supportsFixedPosition,
	forceScroll = jQuery("<div/>").css({ width: 2000, height: 2000 }),
	checkSupport = function() {
		// Only run once
		checkSupport = false;

		var checkFixed = jQuery("<div/>").css({ position: "fixed", top: "20px" }).appendTo("#qunit-fixture");

		// Must append to body because #qunit-fixture is hidden and elements inside it don't have a scrollTop
		forceScroll.appendTo("body");
		window.scrollTo( 200, 200 );
		supportsScroll = document.documentElement.scrollTop || document.body.scrollTop;
		forceScroll.detach();

		// Safari subtracts parent border width here (which is 5px)
		supportsFixedPosition = checkFixed[0].offsetTop === 20 || checkFixed[0].offsetTop === 15;
		checkFixed.remove();
	};

module("offset", { setup: function(){
	if ( typeof checkSupport === "function" ) {
		checkSupport();
	}

	// Force a scroll value on the main window to ensure incorrect results
	// if offset is using the scroll offset of the parent window
	forceScroll.appendTo("body");
	window.scrollTo( 1, 1 );
	forceScroll.detach();
}, teardown: moduleTeardown });

/*
	Closure-compiler will roll static methods off of the jQuery object and so they will
	not be passed with the jQuery object across the windows. To differentiate this, the
	testIframe callbacks use the "$" symbol to refer to the jQuery object passed from
	the iframe window and the "jQuery" symbol is used to access any static methods.
*/

test("empty set", function() {
	expect(2);
	strictEqual( jQuery().offset(), undefined, "offset() returns undefined for empty set (#11962)" );
	strictEqual( jQuery().position(), undefined, "position() returns undefined for empty set (#11962)" );
});

test("object without getBoundingClientRect", function() {
	expect(2);

	// Simulates a browser without gBCR on elements, we just want to return 0,0
	var result = jQuery({ ownerDocument: document }).offset();
	equal( result.top, 0, "Check top" );
	equal( result.left, 0, "Check left" );
});

test("disconnected node", function() {