Tests: Allow a mock QUnit.test for perfect testIframe fidelity

Ref 1d2df77 Closes jquerygh-3647
hencca · Apr 25, 2017 · bb75721 · bb75721
1 parent bb79f72
commit bb75721
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Showing 2 changed files with 16 additions and 14 deletions.
diff --git a/test/data/testinit.js b/test/data/testinit.js
@@ -231,8 +231,11 @@ this.ajaxTest = function( title, expect, options ) {
 	} );
 };
 
-this.testIframe = function( title, fileName, func ) {
-	QUnit.test( title, function( assert ) {
+this.testIframe = function( title, fileName, func, wrapper ) {
+	if ( !wrapper ) {
+		wrapper = QUnit.test;
+	}
+	wrapper.call( QUnit, title, function( assert ) {
 		var done = assert.async(),
 			$iframe = supportjQuery( "<iframe/>" )
 				.css( { position: "absolute", width: "500px", left: "-600px" } )

diff --git a/test/unit/offset.js b/test/unit/offset.js
@@ -26,18 +26,17 @@ var supportsFixedPosition, supportsScroll, alwaysScrollable,
 		// Support: iOS <=7
 		// Hijack the iframe test infrastructure to detect viewport scrollability
 		// for pages with position:fixed document element
-		var done = assert.async(),
-			$iframe = supportjQuery( "<iframe/>" )
-				.css( { position: "absolute", width: "50px", left: "-60px" } )
-				.attr( "src", url( "./data/offset/boxes.html" ) );
-		window.iframeCallback = function( $, win, doc ) {
-			doc.documentElement.style.position = "fixed";
-			alwaysScrollable = win.pageXOffset !== 0;
-			window.iframeCallback = undefined;
-			$iframe.remove();
-			done();
-		};
-		$iframe.appendTo( document.body );
+		var done = assert.async();
+		testIframe(
+			null,
+			"offset/boxes.html",
+			function( assert, $, win, doc ) {
+				doc.documentElement.style.position = "fixed";
+				alwaysScrollable = win.pageXOffset !== 0;
+				done();
+			},
+			function( _, mockTest ) { mockTest( assert ); }
+		);
 	};
 
 QUnit.module( "offset", { setup: function( assert ) {