Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Service/ClosingStructuresCalculationActivity.cs
===================================================================
diff -u -r73597729ce18d3ee00d8036bca8341e9c12f2953 -rf80835301ae973b5439593e81fb640b7ab044340
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Service/ClosingStructuresCalculationActivity.cs	(.../ClosingStructuresCalculationActivity.cs)	(revision 73597729ce18d3ee00d8036bca8341e9c12f2953)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Service/ClosingStructuresCalculationActivity.cs	(.../ClosingStructuresCalculationActivity.cs)	(revision f80835301ae973b5439593e81fb640b7ab044340)
@@ -80,6 +80,11 @@
             calculationService = new ClosingStructuresCalculationService();
         }
 
+        protected override bool Validate()
+        {
+            return calculationService.Validate(calculation, assessmentSection);
+        }
+
         protected override void PerformCalculation()
         {
             ClosingStructuresDataSynchronizationService.ClearCalculationOutput(calculation);
Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Service/ClosingStructuresCalculationService.cs
===================================================================
diff -u -rc4633eaee0402f974fc155295c5a9461bb322d4e -rf80835301ae973b5439593e81fb640b7ab044340
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Service/ClosingStructuresCalculationService.cs	(.../ClosingStructuresCalculationService.cs)	(revision c4633eaee0402f974fc155295c5a9461bb322d4e)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Service/ClosingStructuresCalculationService.cs	(.../ClosingStructuresCalculationService.cs)	(revision f80835301ae973b5439593e81fb640b7ab044340)
@@ -123,6 +123,15 @@
             canceled = true;
         }
 
+        public bool Validate(ClosingStructuresCalculation calculation, IAssessmentSection assessmentSection)
+        {
+            CalculationServiceHelper.LogValidationBeginTime(calculation.Name);
+            //TODO: Validate all the input parameters here, see WTI-926
+            CalculationServiceHelper.LogValidationEndTime(calculation.Name);
+
+            return true;
+        }
+
         private static StructuresClosureVerticalWallCalculationInput CreateClosureVerticalWallCalculationInput(ClosingStructuresCalculation calculation,
                                                                                                                FailureMechanismSection failureMechanismSection,
                                                                                                                GeneralClosingStructuresInput generalInput)
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Integration.Test/ClosingStructuresCalculationActivityIntegrationTest.cs
===================================================================
diff -u -r73597729ce18d3ee00d8036bca8341e9c12f2953 -rf80835301ae973b5439593e81fb640b7ab044340
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Integration.Test/ClosingStructuresCalculationActivityIntegrationTest.cs	(.../ClosingStructuresCalculationActivityIntegrationTest.cs)	(revision 73597729ce18d3ee00d8036bca8341e9c12f2953)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Integration.Test/ClosingStructuresCalculationActivityIntegrationTest.cs	(.../ClosingStructuresCalculationActivityIntegrationTest.cs)	(revision f80835301ae973b5439593e81fb640b7ab044340)
@@ -34,6 +34,7 @@
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.Common.IO.FileImporters;
+using Ringtoets.HydraRing.Calculation.TestUtil.Calculator;
 using Ringtoets.HydraRing.Data;
 using Ringtoets.Integration.Data;
 
@@ -45,7 +46,7 @@
         private readonly string testDataPath = TestHelper.GetTestDataPath(TestDataPath.Ringtoets.Integration.Service, "HydraRingCalculation");
 
         [Test]
-        public void Run_InValidHeightStructuresCalculationAndRan_PerformHeightStructuresValidationAndCalculationAndLogStartAndEndAndError()
+        public void Run_ValidClosingStructuresCalculation_PerformClosingStructuresValidationAndCalculationAndLogStartAndEnd()
         {
             // Setup
             var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike);
@@ -68,6 +69,55 @@
             {
                 InputParameters =
                 {
+                    HydraulicBoundaryLocation = assessmentSection.HydraulicBoundaryDatabase.Locations.First(hl => hl.Id == 1300001),
+                }
+            };
+
+            var activity = new ClosingStructuresCalculationActivity(calculation, testDataPath, failureMechanism, assessmentSection);
+            using (new HydraRingCalculatorFactoryConfig())
+            {
+                // Call
+                Action call = () => activity.Run();
+
+                // Assert
+                TestHelper.AssertLogMessages(call, messages =>
+                {
+                    var msgs = messages.ToArray();
+                    Assert.AreEqual(5, msgs.Length);
+                    StringAssert.StartsWith(string.Format("Validatie van '{0}' gestart om: ", calculation.Name), msgs[0]);
+                    StringAssert.StartsWith(string.Format("Validatie van '{0}' beëindigd om: ", calculation.Name), msgs[1]);
+                    StringAssert.StartsWith(string.Format("Berekening van '{0}' gestart om: ", calculation.Name), msgs[2]);
+                    StringAssert.StartsWith(string.Format("Berekening van '{0}' beëindigd om: ", calculation.Name), msgs[4]);
+                    StringAssert.StartsWith("Kunstwerken sluiten berekeningsverslag. Klik op details voor meer informatie.", msgs[3]);
+                });
+                Assert.AreEqual(ActivityState.Executed, activity.State);
+            }
+        }
+
+        [Test]
+        public void Run_InValidClosingStructuresCalculationAndRan_PerformClosingStructuresValidationAndCalculationAndLogStartAndEndAndError()
+        {
+            // Setup
+            var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike);
+
+            string validFilePath = Path.Combine(testDataPath, "HRD dutch coast south.sqlite");
+
+            using (var importer = new HydraulicBoundaryDatabaseImporter())
+            {
+                importer.Import(assessmentSection, validFilePath);
+            }
+
+            var failureMechanism = new ClosingStructuresFailureMechanism();
+            failureMechanism.AddSection(new FailureMechanismSection("test section", new[]
+            {
+                new Point2D(0, 0),
+                new Point2D(1, 1)
+            }));
+
+            var calculation = new TestClosingStructuresCalculation()
+            {
+                InputParameters =
+                {
                     HydraulicBoundaryLocation = new HydraulicBoundaryLocation(1, "test", 1, 1),
                 }
             };
@@ -81,21 +131,19 @@
             TestHelper.AssertLogMessages(call, messages =>
             {
                 var msgs = messages.ToArray();
-                Assert.AreEqual(4, msgs.Length);
-                // TODO: Skeleton for validation
-//                Assert.AreEqual(6, msgs.Length);
-//                StringAssert.StartsWith(string.Format("Validatie van '{0}' gestart om: ", calculation.Name), msgs[0]);
-//                StringAssert.StartsWith(string.Format("Validatie van '{0}' beëindigd om: ", calculation.Name), msgs[1]);
-                StringAssert.StartsWith(string.Format("Berekening van '{0}' gestart om: ", calculation.Name), msgs[0]);
-                StringAssert.StartsWith(string.Format("De berekening voor kunstwerk sluiten '{0}' is niet gelukt.", calculation.Name), msgs[1]);
-                StringAssert.StartsWith("Kunstwerken sluiten berekeningsverslag. Klik op details voor meer informatie.", msgs[2]);
-                StringAssert.StartsWith(string.Format("Berekening van '{0}' beëindigd om: ", calculation.Name), msgs[3]);
+                Assert.AreEqual(6, msgs.Length);
+                StringAssert.StartsWith(string.Format("Validatie van '{0}' gestart om: ", calculation.Name), msgs[0]);
+                StringAssert.StartsWith(string.Format("Validatie van '{0}' beëindigd om: ", calculation.Name), msgs[1]);
+                StringAssert.StartsWith(string.Format("Berekening van '{0}' gestart om: ", calculation.Name), msgs[2]);
+                StringAssert.StartsWith(string.Format("De berekening voor kunstwerk sluiten '{0}' is niet gelukt.", calculation.Name), msgs[3]);
+                StringAssert.StartsWith("Kunstwerken sluiten berekeningsverslag. Klik op details voor meer informatie.", msgs[4]);
+                StringAssert.StartsWith(string.Format("Berekening van '{0}' beëindigd om: ", calculation.Name), msgs[5]);
             });
             Assert.AreEqual(ActivityState.Failed, activity.State);
         }
 
         [Test]
-        public void Finish_ValidHeightStructuresCalculationAndRan_SetsOutputAndNotifyObserversOfHeightStructuresCalculation()
+        public void Finish_ValidClosingStructuresCalculationAndRan_SetsOutputAndNotifyObserversOfClosingStructuresCalculation()
         {
             // Setup
             var mocks = new MockRepository();
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Integration.Test/Ringtoets.ClosingStructures.Integration.Test.csproj
===================================================================
diff -u -r73597729ce18d3ee00d8036bca8341e9c12f2953 -rf80835301ae973b5439593e81fb640b7ab044340
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Integration.Test/Ringtoets.ClosingStructures.Integration.Test.csproj	(.../Ringtoets.ClosingStructures.Integration.Test.csproj)	(revision 73597729ce18d3ee00d8036bca8341e9c12f2953)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Integration.Test/Ringtoets.ClosingStructures.Integration.Test.csproj	(.../Ringtoets.ClosingStructures.Integration.Test.csproj)	(revision f80835301ae973b5439593e81fb640b7ab044340)
@@ -90,6 +90,10 @@
       <Project>{70f8cc9c-5bc8-4fb2-b201-eae7fa8088c2}</Project>
       <Name>Ringtoets.HydraRing.Data</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\HydraRing\test\Ringtoets.HydraRing.Calculation.TestUtil\Ringtoets.HydraRing.Calculation.TestUtil.csproj">
+      <Project>{74CBA865-9338-447F-BAD9-28312446AE84}</Project>
+      <Name>Ringtoets.HydraRing.Calculation.TestUtil</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\Integration\src\Ringtoets.Integration.Data\Ringtoets.Integration.Data.csproj">
       <Project>{11F1F874-45AF-43E4-8AE5-15A5C9593E28}</Project>
       <Name>Ringtoets.Integration.Data</Name>