Index: Ringtoets/Common/test/Ringtoets.Common.Forms.TestUtil.Test/MapDataTestHelperTest.cs
===================================================================
diff -u -rf2582640849a5a4afce5674db823c37e1edaea19 -r35fa216f8255ce431cd920b991297fa80592b64a
--- Ringtoets/Common/test/Ringtoets.Common.Forms.TestUtil.Test/MapDataTestHelperTest.cs	(.../MapDataTestHelperTest.cs)	(revision f2582640849a5a4afce5674db823c37e1edaea19)
+++ Ringtoets/Common/test/Ringtoets.Common.Forms.TestUtil.Test/MapDataTestHelperTest.cs	(.../MapDataTestHelperTest.cs)	(revision 35fa216f8255ce431cd920b991297fa80592b64a)
@@ -1116,34 +1116,10 @@
             TestDelegate test = () => MapDataTestHelper.AssertImageBasedMapData(new BackgroundData(new TestBackgroundDataConfiguration()), imageBasedMapData);
 
             // Assert
-            Assert.Throws<AssertionException>(test);
+            Assert.Throws<AssertionException>(test, "Unsupported background configuration.");
         }
 
         [Test]
-        public void AssertImageBasedMapData_BackgroundDataNull_ThrowAssertionException()
-        {
-            // Setup
-            var imageBasedMapData = new SimpleImageBasedMapData();
-
-            // Call
-            TestDelegate test = () => MapDataTestHelper.AssertImageBasedMapData(null, imageBasedMapData);
-
-            // Assert
-            Assert.Throws<AssertionException>(test);
-        }
-
-        [Test]
-        public void AssertImageBasedMapData_DataNull_ThrowAssertionException()
-        {
-            // Call
-            TestDelegate test = () => MapDataTestHelper.AssertImageBasedMapData(BackgroundDataConverter.ConvertTo(WmtsMapData.CreateUnconnectedMapData()),
-                                                                                null);
-
-            // Assert
-            Assert.Throws<AssertionException>(test);
-        }
-
-        [Test]
         [TestCaseSource(nameof(NotEqualToDefaultPdokMapData))]
         public void AssertImageBasedMapData_WmtsMapDataNotEqual_ThrowAssertionException(WmtsMapData wmtsMapData)
         {