Index: DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/ConversionHelperTests.cs
===================================================================
diff -u -r1232 -r1554
--- DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/ConversionHelperTests.cs	(.../ConversionHelperTests.cs)	(revision 1232)
+++ DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/ConversionHelperTests.cs	(.../ConversionHelperTests.cs)	(revision 1554)
@@ -594,5 +594,33 @@
         {
             Assert.AreEqual(stabilityModelType, ConversionHelper.ConvertToStabilityModelType(outputStabilityModelType));
         }
+        [Test]
+        [TestCase(ConversionHelper.TimeStepUnitSecond, TimeStepUnit.Second)]
+        [TestCase(ConversionHelper.TimeStepUnitMinute, TimeStepUnit.Minute)]
+        [TestCase(ConversionHelper.TimeStepUnitHour, TimeStepUnit.Hour)]
+        [TestCase(ConversionHelper.TimeStepUnitDay, TimeStepUnit.Day)]
+        [TestCase(ConversionHelper.TimeStepUnitMonth, TimeStepUnit.Month)]
+        [TestCase(ConversionHelper.TimeStepUnitWeek, TimeStepUnit.Week)]
+        [TestCase(ConversionHelper.TimeStepUnitYear, TimeStepUnit.Year)]
+        [TestCase(ConversionHelper.TimeStepUnitNonequidistant, TimeStepUnit.Nonequidistant)]
+        public void CanConvertToTimeStepUnit(uint inputTimeStepUnit, TimeStepUnit timeStepUnit)
+        {
+            Assert.AreEqual(timeStepUnit, ConversionHelper.ConvertToTimeStepUnit(inputTimeStepUnit));
+        }
+
+        [Test]
+        [TestCase(TimeStepUnit.Second, ConversionHelper.TimeStepUnitSecond)]
+        [TestCase(TimeStepUnit.Minute, ConversionHelper.TimeStepUnitMinute)]
+        [TestCase(TimeStepUnit.Hour, ConversionHelper.TimeStepUnitHour)]
+        [TestCase(TimeStepUnit.Day, ConversionHelper.TimeStepUnitDay)]
+        [TestCase(TimeStepUnit.Month, ConversionHelper.TimeStepUnitMonth)]
+        [TestCase(TimeStepUnit.Week, ConversionHelper.TimeStepUnitWeek)]
+        [TestCase(TimeStepUnit.Year, ConversionHelper.TimeStepUnitYear)]
+        [TestCase(TimeStepUnit.Nonequidistant, ConversionHelper.TimeStepUnitNonequidistant)]
+        public void CanConvertToInputTimeStepUnit(TimeStepUnit timeStepUnit, uint inputTimeStepUnit)
+        {
+            Assert.AreEqual(inputTimeStepUnit, ConversionHelper.ConvertToInputTimeStepUnit(timeStepUnit));
+        }
+
     }
 }