diff --git a/test/spec/ol/render/vector.test.js b/test/spec/ol/render/vector.test.js
index 826d3ae054..973075d840 100644
--- a/test/spec/ol/render/vector.test.js
+++ b/test/spec/ol/render/vector.test.js
@@ -63,7 +63,7 @@ describe('ol.renderer.vector', function() {
             style.getZIndex(), ol.render.ReplayType.IMAGE);
         var setImageStyleSpy = sinon.spy(imageReplay, 'setImageStyle');
         var drawPointGeometrySpy = sinon.stub(imageReplay,
-            'drawPointGeometry', goog.nullFunction);
+            'drawPointGeometry', ol.nullFunction);
         ol.renderer.vector.renderFeature(replayGroup, feature,
             style, squaredTolerance, listener, listenerThis);
         expect(setImageStyleSpy.called).to.be(false);
@@ -77,7 +77,7 @@ describe('ol.renderer.vector', function() {
             style.getZIndex(), ol.render.ReplayType.IMAGE);
         var setImageStyleSpy = sinon.spy(imageReplay, 'setImageStyle');
         var drawMultiPointGeometrySpy = sinon.stub(imageReplay,
-            'drawMultiPointGeometry', goog.nullFunction);
+            'drawMultiPointGeometry', ol.nullFunction);
         ol.renderer.vector.renderFeature(replayGroup, feature,
             style, squaredTolerance, listener, listenerThis);
         expect(setImageStyleSpy.called).to.be(false);
@@ -92,7 +92,7 @@ describe('ol.renderer.vector', function() {
         var setFillStrokeStyleSpy = sinon.spy(lineStringReplay,
             'setFillStrokeStyle');
         var drawLineStringGeometrySpy = sinon.stub(lineStringReplay,
-            'drawLineStringGeometry', goog.nullFunction);
+            'drawLineStringGeometry', ol.nullFunction);
         ol.renderer.vector.renderFeature(replayGroup, feature,
             style, squaredTolerance, listener, listenerThis);
         expect(setFillStrokeStyleSpy.called).to.be(true);
@@ -108,7 +108,7 @@ describe('ol.renderer.vector', function() {
         var setFillStrokeStyleSpy = sinon.spy(lineStringReplay,
             'setFillStrokeStyle');
         var drawMultiLineStringGeometrySpy = sinon.stub(lineStringReplay,
-            'drawMultiLineStringGeometry', goog.nullFunction);
+            'drawMultiLineStringGeometry', ol.nullFunction);
         ol.renderer.vector.renderFeature(replayGroup, feature,
             style, squaredTolerance, listener, listenerThis);
         expect(setFillStrokeStyleSpy.called).to.be(true);
@@ -125,7 +125,7 @@ describe('ol.renderer.vector', function() {
         var setFillStrokeStyleSpy = sinon.spy(polygonReplay,
             'setFillStrokeStyle');
         var drawPolygonGeometrySpy = sinon.stub(polygonReplay,
-            'drawPolygonGeometry', goog.nullFunction);
+            'drawPolygonGeometry', ol.nullFunction);
         ol.renderer.vector.renderFeature(replayGroup, feature,
             style, squaredTolerance, listener, listenerThis);
         expect(setFillStrokeStyleSpy.called).to.be(true);
@@ -142,7 +142,7 @@ describe('ol.renderer.vector', function() {
         var setFillStrokeStyleSpy = sinon.spy(polygonReplay,
             'setFillStrokeStyle');
         var drawMultiPolygonGeometrySpy = sinon.stub(polygonReplay,
-            'drawMultiPolygonGeometry', goog.nullFunction);
+            'drawMultiPolygonGeometry', ol.nullFunction);
         ol.renderer.vector.renderFeature(replayGroup, feature,
             style, squaredTolerance, listener, listenerThis);
         expect(setFillStrokeStyleSpy.called).to.be(true);
diff --git a/test/spec/ol/style/iconstyle.test.js b/test/spec/ol/style/iconstyle.test.js
index 2fa88d5981..ff99a50fb0 100644
--- a/test/spec/ol/style/iconstyle.test.js
+++ b/test/spec/ol/style/iconstyle.test.js
@@ -181,14 +181,14 @@ describe('ol.style.IconImageCache', function() {
       src = '0';
       iconImage = new ol.style.IconImage_(src, null);
       goog.events.listen(iconImage, goog.events.EventType.CHANGE,
-          goog.nullFunction, false);
+          ol.nullFunction, false);
       cache.set(src, null, iconImage);
       expect(cache.cacheSize_).to.eql(4);
 
       src = '4';
       iconImage = new ol.style.IconImage_(src, null);
       goog.events.listen(iconImage, goog.events.EventType.CHANGE,
-          goog.nullFunction, false);
+          ol.nullFunction, false);
       cache.set(src, null, iconImage);
       expect(cache.cacheSize_).to.eql(5);