Remove test image after check

cburgmer · cburgmer · commit b4f1e83a4327 · 2015-03-23T21:47:03.000+01:00
diff --git a/src/mediaQueryHelper.js b/src/mediaQueryHelper.js
@@ -13,7 +13,6 @@ var mediaQueryHelper = (function (cssMediaQuery) {
 
         img.src = url;
 
-        document.querySelector('body').appendChild(img);
         return img;
     };
 
@@ -34,7 +33,10 @@ var mediaQueryHelper = (function (cssMediaQuery) {
         var img = svgImgBlueByEmMediaQuery(),
             defer = ayepromise.defer();
 
+        document.querySelector('body').appendChild(img);
+
         img.onload = function () {
+            document.querySelector('body').removeChild(img);
             try {
                 defer.resolve(!firstPixelHasColor(img, 0, 0, 255));
             } catch (e) {
diff --git a/test/specs/MediaQueryHelperSpec.js b/test/specs/MediaQueryHelperSpec.js
@@ -30,6 +30,14 @@ describe("Media Query Helper", function () {
                 done();
             });
         });
+
+        it("should remove test image from DOM", function (done) {
+            mediaQueryHelper.needsEmWorkaround().then(function () {
+                expect($("img").length).toBe(0);
+
+                done();
+            });
+        });
     });
 
     describe("workAroundWebKitEmSizeIssue", function () {
