Offset: Round offset value for the sake of floating errors

mgol · mgol · commit cd63e9c622b8 · 2015-03-23T18:30:05.000+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. (cherry-picked from 62ae2d0) Fixes gh-2147
diff --git a/test/unit/dimensions.js b/test/unit/dimensions.js
@@ -468,15 +468,18 @@ 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 + ")");
 });
 
 })();
