Index: Riskeer/Piping/src/Riskeer.Piping.Forms/PropertyClasses/PipingFailurePathProperties.cs
===================================================================
diff -u -r84b171a2ba832419227191dc6f007aeb9697952b -r30dfe7ea013fd0f0ba20a55f31e3801b05de8159
--- Riskeer/Piping/src/Riskeer.Piping.Forms/PropertyClasses/PipingFailurePathProperties.cs	(.../PipingFailurePathProperties.cs)	(revision 84b171a2ba832419227191dc6f007aeb9697952b)
+++ Riskeer/Piping/src/Riskeer.Piping.Forms/PropertyClasses/PipingFailurePathProperties.cs	(.../PipingFailurePathProperties.cs)	(revision 30dfe7ea013fd0f0ba20a55f31e3801b05de8159)
@@ -31,7 +31,7 @@
 namespace Riskeer.Piping.Forms.PropertyClasses
 {
     /// <summary>
-    /// Calculation related ViewModel of <see cref="PipingFailureMechanism"/> for properties panel.
+    /// Failure path related ViewModel of <see cref="PipingFailureMechanism"/> for properties panel.
     /// </summary>
     public class PipingFailurePathProperties : PipingFailureMechanismProperties
     {
Index: Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/PipingCalculationsPropertiesTest.cs
===================================================================
diff -u -r84b171a2ba832419227191dc6f007aeb9697952b -r30dfe7ea013fd0f0ba20a55f31e3801b05de8159
--- Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/PipingCalculationsPropertiesTest.cs	(.../PipingCalculationsPropertiesTest.cs)	(revision 84b171a2ba832419227191dc6f007aeb9697952b)
+++ Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/PipingCalculationsPropertiesTest.cs	(.../PipingCalculationsPropertiesTest.cs)	(revision 30dfe7ea013fd0f0ba20a55f31e3801b05de8159)
@@ -62,40 +62,6 @@
         private const int sellMeijerReductionFactorPropertyIndex = 18;
 
         [Test]
-        public void Constructor_DataNull_ThrowArgumentNullException()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            var handler = mocks.Stub<IFailureMechanismPropertyChangeHandler<PipingFailureMechanism>>();
-            mocks.ReplayAll();
-
-            // Call
-            void Call() => new PipingCalculationsProperties(null, assessmentSection, handler);
-
-            // Assert
-            var exception = Assert.Throws<ArgumentNullException>(Call);
-            Assert.AreEqual("data", exception.ParamName);
-            mocks.VerifyAll();
-        }
-
-        [Test]
-        public void Constructor_AssessmentSectionNull_ThrowsArgumentNullException()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var handler = mocks.Stub<IFailureMechanismPropertyChangeHandler<PipingFailureMechanism>>();
-            mocks.ReplayAll();
-
-            // Call
-            void Call() => new PipingCalculationsProperties(new PipingFailureMechanism(), null, handler);
-
-            // Assert
-            var exception = Assert.Throws<ArgumentNullException>(Call);
-            Assert.AreEqual("assessmentSection", exception.ParamName);
-        }
-
-        [Test]
         public void Constructor_ChangeHandlerNull_ThrowArgumentNullException()
         {
             // Setup
Index: Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/PipingFailurePathPropertiesTest.cs
===================================================================
diff -u -r84b171a2ba832419227191dc6f007aeb9697952b -r30dfe7ea013fd0f0ba20a55f31e3801b05de8159
--- Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/PipingFailurePathPropertiesTest.cs	(.../PipingFailurePathPropertiesTest.cs)	(revision 84b171a2ba832419227191dc6f007aeb9697952b)
+++ Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/PipingFailurePathPropertiesTest.cs	(.../PipingFailurePathPropertiesTest.cs)	(revision 30dfe7ea013fd0f0ba20a55f31e3801b05de8159)
@@ -48,38 +48,6 @@
         private const int nPropertyIndex = 8;
 
         [Test]
-        public void Constructor_DataNull_ThrowArgumentNullException()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
-            // Call
-            void Call() => new PipingFailurePathProperties(null, assessmentSection);
-
-            // Assert
-            var exception = Assert.Throws<ArgumentNullException>(Call);
-            Assert.AreEqual("data", exception.ParamName);
-            mocks.VerifyAll();
-        }
-
-        [Test]
-        public void Constructor_AssessmentSectionNull_ThrowsArgumentNullException()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            mocks.ReplayAll();
-
-            // Call
-            void Call() => new PipingFailurePathProperties(new PipingFailureMechanism(), null);
-
-            // Assert
-            var exception = Assert.Throws<ArgumentNullException>(Call);
-            Assert.AreEqual("assessmentSection", exception.ParamName);
-        }
-
-        [Test]
         [TestCase(true)]
         [TestCase(false)]
         public void Constructor_ExpectedValues(bool isRelevant)