Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/BackgroundMapDataSelectionDialogTest.cs
===================================================================
diff -u -rdadf9ac48b69ed4e26610fc6e7ccf8af0e2f5452 -rad5fba0bbb2b3a4a7d99bc29b218eec1f96c2def
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/BackgroundMapDataSelectionDialogTest.cs	(.../BackgroundMapDataSelectionDialogTest.cs)	(revision dadf9ac48b69ed4e26610fc6e7ccf8af0e2f5452)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/BackgroundMapDataSelectionDialogTest.cs	(.../BackgroundMapDataSelectionDialogTest.cs)	(revision ad5fba0bbb2b3a4a7d99bc29b218eec1f96c2def)
@@ -144,6 +144,23 @@
             }
         }
 
+        [Test]
+        public void Dispose_DisposedAlreadyCalled_DoesNotThrowException()
+        {
+            // Call
+            TestDelegate call = () =>
+            {
+                using (var dialogParent = new Form())
+                using (var dialog = new BackgroundMapDataSelectionDialog(dialogParent))
+                {
+                    dialog.Dispose();
+                }
+            };
+
+            // Assert
+            Assert.DoesNotThrow(call);
+        }
+
         private static Icon BitmapToIcon(Bitmap icon)
         {
             return Icon.FromHandle(icon.GetHicon());