Offset: Round offset value for the sake of floating errors

mgol · mgol · commit 62ae2d0fb7ac · 2015-03-23T18:14:37.000+01:00
IE10+ may return not exactly the offset.top value set in an offset callback if parent has fractional top offset itself. Checking for being close to the desired result fixes the test error. Fixes gh-2147
diff --git a/test/unit/dimensions.js b/test/unit/dimensions.js
@@ -453,15 +453,18 @@ testIframe( "dimensions/documentLarge", "window vs. large document", function( j
 });
 
 test( "allow modification of coordinates argument (gh-1848)", 1, function() {
-	var element = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
+	var offsetTop,
+		element = jQuery( "<div/>" ).appendTo( "#qunit-fixture" );
 
 	element.offset(function( index, coords ) {
 		coords.top = 100;
 
 		return coords;
 	});
 
-	equal( element.offset().top, 100, "coordinates are modified" );
+	offsetTop = element.offset().top;
+	ok( Math.abs(offsetTop - 100) < 0.02,
+		"coordinates are modified (got offset.top: " +  offsetTop + ")");
 });
 
 })();
