Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs
===================================================================
diff -u -r9ca2ce99f8b1d93fb1edde4e505b5acc5094a256 -r1b1fb73a7519560cd8d2f53e7a7471be26d34ba7
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs	(.../RingtoetsPipingSurfaceLineTest.cs)	(revision 9ca2ce99f8b1d93fb1edde4e505b5acc5094a256)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs	(.../RingtoetsPipingSurfaceLineTest.cs)	(revision 1b1fb73a7519560cd8d2f53e7a7471be26d34ba7)
@@ -1143,10 +1143,7 @@
             TestHelper.AssertAreEqualButNotSame(expectedSurfaceLine.ReferenceLineIntersectionWorldPoint,
                                      actualSurfaceLine.ReferenceLineIntersectionWorldPoint);
             CollectionAssert.AreEqual(expectedSurfaceLine.Points, actualSurfaceLine.Points);
-            for (var i = 0; i < expectedSurfaceLine.Points.Length; i++)
-            {
-                Assert.AreNotSame(expectedSurfaceLine.Points[i], actualSurfaceLine.Points[i]);
-            }
+            TestHelper.AssertCollectionAreNotSame(expectedSurfaceLine.Points, actualSurfaceLine.Points);
             TestHelper.AssertAreEqualButNotSame(expectedSurfaceLine.BottomDitchDikeSide, actualSurfaceLine.BottomDitchDikeSide);
             TestHelper.AssertAreEqualButNotSame(expectedSurfaceLine.BottomDitchPolderSide, actualSurfaceLine.BottomDitchPolderSide);
             TestHelper.AssertAreEqualButNotSame(expectedSurfaceLine.DikeToeAtPolder, actualSurfaceLine.DikeToeAtPolder);