Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Forms.Test/PresentationObjects/GrassCoverErosionInwardsCalculationGroupContextTest.cs
===================================================================
diff -u -r1135c8dff2d97eb3b8f17ada1f96bc068ac06bc2 -r1cb6a367a7045fcde284b83e695e7ce5a7ea68ab
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Forms.Test/PresentationObjects/GrassCoverErosionInwardsCalculationGroupContextTest.cs	(.../GrassCoverErosionInwardsCalculationGroupContextTest.cs)	(revision 1135c8dff2d97eb3b8f17ada1f96bc068ac06bc2)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Forms.Test/PresentationObjects/GrassCoverErosionInwardsCalculationGroupContextTest.cs	(.../GrassCoverErosionInwardsCalculationGroupContextTest.cs)	(revision 1cb6a367a7045fcde284b83e695e7ce5a7ea68ab)
@@ -19,6 +19,8 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
+using System.Collections.Generic;
+using Core.Common.TestUtil;
 using NUnit.Framework;
 using Rhino.Mocks;
 using Ringtoets.Common.Data.AssessmentSection;
@@ -61,242 +63,61 @@
             mockRepository.VerifyAll();
         }
 
-        [Test]
-        public void Equals_ToNull_ReturnFalse()
+        [TestFixture]
+        private class GrassCoverErosionInwardsCalculationGroupContextEqualsTest
+            : EqualsGuidelinesTestFixture<GrassCoverErosionInwardsCalculationGroupContext,
+                DerivedGrassCoverErosionInwardsCalculationGroupContext>
         {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
+            private static readonly MockRepository mocks = new MockRepository();
 
-            var calculationGroup = new CalculationGroup();
-            var parent = new CalculationGroup();
-            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
-            var context = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                              parent,
-                                                                              failureMechanism,
-                                                                              assessmentSection);
+            private static readonly IAssessmentSection assessmentSection = mocks.Stub<IAssessmentSection>();
+            private static readonly GrassCoverErosionInwardsFailureMechanism failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
+            private static readonly CalculationGroup parent = new CalculationGroup();
+            private static readonly CalculationGroup calculationGroup = new CalculationGroup();
 
-            // Call
-            bool isEqual = context.Equals(null);
+            [SetUp]
+            public void SetUp()
+            {
+                mocks.ReplayAll();
+            }
 
-            // Assert
-            Assert.IsFalse(isEqual);
+            [TearDown]
+            public void TearDown()
+            {
+                mocks.VerifyAll();
+            }
 
-            mocks.VerifyAll();
-        }
+            protected override GrassCoverErosionInwardsCalculationGroupContext CreateObject()
+            {
+                return new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
+                                                                           parent,
+                                                                           failureMechanism,
+                                                                           assessmentSection);
+            }
 
-        [Test]
-        public void Equals_ToItself_ReturnTrue()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
+            protected override DerivedGrassCoverErosionInwardsCalculationGroupContext CreateDerivedObject()
+            {
+                return new DerivedGrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
+                                                                                  parent,
+                                                                                  failureMechanism,
+                                                                                  assessmentSection);
+            }
 
-            var calculationGroup = new CalculationGroup();
-            var parent = new CalculationGroup();
-            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
-            var context = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                              parent,
-                                                                              failureMechanism,
-                                                                              assessmentSection);
-
-            // Call
-            bool isEqual = context.Equals(context);
-
-            // Assert
-            Assert.IsTrue(isEqual);
-
-            mocks.VerifyAll();
+            private static IEnumerable<TestCaseData> GetUnequalTestCases()
+            {
+                yield return new TestCaseData(new GrassCoverErosionInwardsCalculationGroupContext(new CalculationGroup(),
+                                                                                                  parent,
+                                                                                                  failureMechanism,
+                                                                                                  assessmentSection))
+                    .SetName("Wrapped Calculation Group");
+                yield return new TestCaseData(new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
+                                                                                                  new CalculationGroup(),
+                                                                                                  failureMechanism,
+                                                                                                  assessmentSection))
+                    .SetName("Parent");
+            }
         }
 
-        [Test]
-        public void Equals_ToOtherWithDifferentType_ReturnFalse()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
-            var calculationGroup = new CalculationGroup();
-            var parent = new CalculationGroup();
-            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
-            var context = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                              parent,
-                                                                              failureMechanism,
-                                                                              assessmentSection);
-
-            // Call
-            bool isEqual = context.Equals(new object());
-
-            // Assert
-            Assert.IsFalse(isEqual);
-
-            mocks.VerifyAll();
-        }
-
-        [Test]
-        public void Equals_ToDerivedObject_ReturnsFalse()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
-            var calculationGroup = new CalculationGroup();
-            var parent = new CalculationGroup();
-            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
-            var context = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                              parent,
-                                                                              failureMechanism,
-                                                                              assessmentSection);
-            var derivedContext = new DerivedGrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                                            parent,
-                                                                                            failureMechanism,
-                                                                                            assessmentSection);
-
-            // Call
-            bool isEqual = context.Equals(derivedContext);
-
-            // Assert
-            Assert.IsFalse(isEqual);
-            mocks.VerifyAll();
-        }
-
-        [Test]
-        public void Equals_ToOtherWithDifferentWrappedData_ReturnFalse()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
-            var calculationGroup1 = new CalculationGroup();
-            var calculationGroup2 = new CalculationGroup();
-            var parent = new CalculationGroup();
-            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
-            var context1 = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup1,
-                                                                               parent,
-                                                                               failureMechanism,
-                                                                               assessmentSection);
-            var context2 = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup2,
-                                                                               parent,
-                                                                               failureMechanism,
-                                                                               assessmentSection);
-
-            // Precondition
-            Assert.IsFalse(calculationGroup1.Equals(calculationGroup2));
-
-            // Call
-            bool isEqual1 = context1.Equals(context2);
-            bool isEqual2 = context2.Equals(context1);
-
-            // Assert
-            Assert.IsFalse(isEqual1);
-            Assert.IsFalse(isEqual2);
-
-            mocks.VerifyAll();
-        }
-
-        [Test]
-        public void Equals_ToOtherWithDifferentParent_ReturnFalse()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
-            var calculationGroup = new CalculationGroup();
-            var parent1 = new CalculationGroup();
-            var parent2 = new CalculationGroup();
-            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
-            var context1 = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                               parent1,
-                                                                               failureMechanism,
-                                                                               assessmentSection);
-            var context2 = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                               parent2,
-                                                                               failureMechanism,
-                                                                               assessmentSection);
-
-            // Precondition
-            Assert.IsFalse(parent1.Equals(parent2));
-
-            // Call
-            bool isEqual1 = context1.Equals(context2);
-            bool isEqual2 = context2.Equals(context1);
-
-            // Assert
-            Assert.IsFalse(isEqual1);
-            Assert.IsFalse(isEqual2);
-
-            mocks.VerifyAll();
-        }
-
-        [Test]
-        public void Equals_ToOtherWithSameWrappedDataAndParent_ReturnTrue()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
-            var calculationGroup = new CalculationGroup();
-            var parent = new CalculationGroup();
-            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
-            var context1 = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                               parent,
-                                                                               failureMechanism,
-                                                                               assessmentSection);
-            var context2 = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                               parent,
-                                                                               failureMechanism,
-                                                                               assessmentSection);
-
-            // Call
-            bool isEqual1 = context1.Equals(context2);
-            bool isEqual2 = context2.Equals(context1);
-
-            // Assert
-            Assert.IsTrue(isEqual1);
-            Assert.IsTrue(isEqual2);
-
-            mocks.VerifyAll();
-        }
-
-        [Test]
-        public void GetHashCode_EqualObjects_ReturnSameHashCode()
-        {
-            // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
-            var calculationGroup = new CalculationGroup();
-            var parent = new CalculationGroup();
-            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
-            var context1 = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                               parent,
-                                                                               failureMechanism,
-                                                                               assessmentSection);
-            var context2 = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
-                                                                               parent,
-                                                                               failureMechanism,
-                                                                               assessmentSection);
-            // Precondition
-            Assert.AreEqual(context1, context2);
-
-            // Call
-            int hashCode1 = context1.GetHashCode();
-            int hashCode2 = context2.GetHashCode();
-
-            // Assert
-            Assert.AreEqual(hashCode1, hashCode2);
-
-            mocks.VerifyAll();
-        }
-
         private class DerivedGrassCoverErosionInwardsCalculationGroupContext : GrassCoverErosionInwardsCalculationGroupContext
         {
             public DerivedGrassCoverErosionInwardsCalculationGroupContext(CalculationGroup calculationGroup,