Index: Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Forms.Test/PresentationObjects/WaveImpactAsphaltCoverCalculationContextTest.cs
===================================================================
diff -u -rdecccf5efb0ae872940d8d51b6de9978d13ecb37 -r1135c8dff2d97eb3b8f17ada1f96bc068ac06bc2
--- Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Forms.Test/PresentationObjects/WaveImpactAsphaltCoverCalculationContextTest.cs	(.../WaveImpactAsphaltCoverCalculationContextTest.cs)	(revision decccf5efb0ae872940d8d51b6de9978d13ecb37)
+++ Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Forms.Test/PresentationObjects/WaveImpactAsphaltCoverCalculationContextTest.cs	(.../WaveImpactAsphaltCoverCalculationContextTest.cs)	(revision 1135c8dff2d97eb3b8f17ada1f96bc068ac06bc2)
@@ -145,6 +145,29 @@
         }
 
         [Test]
+        public void Equals_ToDerivedObject_ReturnsFalse()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            var calculation = new WaveImpactAsphaltCoverWaveConditionsCalculation();
+            var failureMechanism = new WaveImpactAsphaltCoverFailureMechanism();
+            var parent = new CalculationGroup();
+
+            var context = new WaveImpactAsphaltCoverWaveConditionsCalculationContext(calculation, parent, failureMechanism, assessmentSection);
+            var derivedContext = new DerivedWaveImpactAsphaltCoverWaveConditionsCalculationContext(calculation, parent, failureMechanism, assessmentSection);
+
+            // Call
+            bool isEqual = context.Equals(derivedContext);
+
+            // Assert
+            Assert.IsFalse(isEqual);
+            mocks.VerifyAll();
+        }
+
+        [Test]
         public void Equals_ToOtherWithDifferentWrappedData_ReturnFalse()
         {
             // Setup
@@ -253,5 +276,14 @@
 
             mocks.VerifyAll();
         }
+
+        private class DerivedWaveImpactAsphaltCoverWaveConditionsCalculationContext : WaveImpactAsphaltCoverWaveConditionsCalculationContext
+        {
+            public DerivedWaveImpactAsphaltCoverWaveConditionsCalculationContext(WaveImpactAsphaltCoverWaveConditionsCalculation calculation,
+                                                                                 CalculationGroup parent,
+                                                                                 WaveImpactAsphaltCoverFailureMechanism failureMechanism,
+                                                                                 IAssessmentSection assessmentSection)
+                : base(calculation, parent, failureMechanism, assessmentSection) {}
+        }
     }
 }
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