Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Data.Test/StabilityPointStructuresInputTest.cs
===================================================================
diff -u -r8d42f78b73ab49db2934de47d82664ea0a1f2458 -r61d40fcfe715efa13eeeaec3f89b59d0e01b10b4
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Data.Test/StabilityPointStructuresInputTest.cs	(.../StabilityPointStructuresInputTest.cs)	(revision 8d42f78b73ab49db2934de47d82664ea0a1f2458)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Data.Test/StabilityPointStructuresInputTest.cs	(.../StabilityPointStructuresInputTest.cs)	(revision 61d40fcfe715efa13eeeaec3f89b59d0e01b10b4)
@@ -992,6 +992,35 @@
                 call, "De waarde voor afstand onderkant wand en teen dijk moet groter of gelijk zijn aan 0.");
         }
 
+        [Test]
+        public void LevellingCount_ValidValue_ExpectedValues()
+        {
+            // Setup
+            var input = new StabilityPointStructuresInput();
+            int levellingCount = new Random(21).Next(0, int.MaxValue);
+
+            // Call
+            input.LevellingCount = levellingCount;
+
+            // Assert
+            Assert.AreEqual(levellingCount, input.LevellingCount);
+        }
+
+        [Test]
+        public void LevellingCount_InvalidValue_ThrowsArgumentOutOfRangException()
+        {
+            // Setup 
+            var input = new StabilityPointStructuresInput();
+
+            // Call
+            TestDelegate call = () => input.LevellingCount = -1;
+
+            // Assert
+            TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentOutOfRangeException>(
+                call, "De waarde voor aantal nivelleringen per jaar moet groter of gelijk zijn aan 0.");
+        }
+
+
         #endregion
 
         #region Helpers