Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/Views/MacroStabilityInwardsFailureMechanismResultViewTest.cs
===================================================================
diff -u -r2cd2b6b5b050b005019185c1c2a4dd28ae0e2ad2 -re25d4d9814eac847e4e004df35a91a938ee01912
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/Views/MacroStabilityInwardsFailureMechanismResultViewTest.cs	(.../MacroStabilityInwardsFailureMechanismResultViewTest.cs)	(revision 2cd2b6b5b050b005019185c1c2a4dd28ae0e2ad2)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Forms.Test/Views/MacroStabilityInwardsFailureMechanismResultViewTest.cs	(.../MacroStabilityInwardsFailureMechanismResultViewTest.cs)	(revision e25d4d9814eac847e4e004df35a91a938ee01912)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using System.Windows.Forms;
 using Core.Common.Base.Data;
@@ -239,37 +240,40 @@
 
         [Test]
         [SetCulture("nl-NL")]
-        [TestCase("1,01")]
-        [TestCase("-0,01")]
-        public void FailureMechanismResultView_EditValueAssessmentLayerThreeInvalid_ShowErrorToolTip(string newValue)
+        [TestCase(1.01)]
+        [TestCase(-0.01)]
+        [TestCase(5)]
+        [TestCase(-10)]
+        public void FailureMechanismResultView_EditValueAssessmentLayerThreeInvalid_ShowErrorToolTip(double newValue)
         {
             // Setup
             using (ShowFullyConfiguredFailureMechanismResultsView(new MacroStabilityInwardsFailureMechanism()))
             {
-                var dataGridView = (DataGridView)new ControlTester("dataGridView").TheObject;
+                var dataGridView = (DataGridView) new ControlTester("dataGridView").TheObject;
 
                 // Call
-                dataGridView.Rows[0].Cells[assessmentLayerThreeIndex].Value = newValue;
+                dataGridView.Rows[0].Cells[assessmentLayerThreeIndex].Value = newValue.ToString(CultureInfo.CurrentCulture);
 
                 // Assert
                 Assert.AreEqual("Kans moet in het bereik [0,0, 1,0] liggen.", dataGridView.Rows[0].ErrorText);
             }
         }
 
         [Test]
-        [TestCase("1")]
-        [TestCase("0,5")]
-        [TestCase("1e-6")]
-        [TestCase("NaN")]
-        public void FailureMechanismResultView_EditValueAssessmentLayerThreeValid_DoNotShowErrorToolTipAndEditValue(string newValue)
+        [SetCulture("nl-NL")]
+        [TestCase(1)]
+        [TestCase(0.5)]
+        [TestCase(1e-6)]
+        [TestCase(double.NaN)]
+        public void FailureMechanismResultView_EditValueAssessmentLayerThreeValid_DoNotShowErrorToolTipAndEditValue(double newValue)
         {
             // Setup
             using (MacroStabilityInwardsFailureMechanismResultView view = ShowFullyConfiguredFailureMechanismResultsView(new MacroStabilityInwardsFailureMechanism()))
             {
                 var dataGridView = (DataGridView) new ControlTester("dataGridView").TheObject;
 
                 // Call
-                dataGridView.Rows[0].Cells[assessmentLayerThreeIndex].Value = newValue;
+                dataGridView.Rows[0].Cells[assessmentLayerThreeIndex].Value = newValue.ToString(CultureInfo.CurrentCulture);
 
                 // Assert
                 Assert.IsEmpty(dataGridView.Rows[0].ErrorText);
@@ -281,7 +285,7 @@
                 const string propertyName = "AssessmentLayerThree";
                 object propertyValue = row.GetType().GetProperty(propertyName).GetValue(row, null);
 
-                Assert.AreEqual((RoundedDouble) double.Parse(newValue), propertyValue);
+                Assert.AreEqual(newValue, propertyValue);
             }
         }