Index: Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Service.Test/MessageProviders/GrassCoverErosionOutwardsDesignWaterLevelCalculationMessageProviderTest.cs
===================================================================
diff -u -r8aea6e032ff8aeb4a4f1b85210fd0e2fbbce3a4a -rc7d39e2c22a5df98a9f398cab98040a51faba283
--- Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Service.Test/MessageProviders/GrassCoverErosionOutwardsDesignWaterLevelCalculationMessageProviderTest.cs	(.../GrassCoverErosionOutwardsDesignWaterLevelCalculationMessageProviderTest.cs)	(revision 8aea6e032ff8aeb4a4f1b85210fd0e2fbbce3a4a)
+++ Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Service.Test/MessageProviders/GrassCoverErosionOutwardsDesignWaterLevelCalculationMessageProviderTest.cs	(.../GrassCoverErosionOutwardsDesignWaterLevelCalculationMessageProviderTest.cs)	(revision c7d39e2c22a5df98a9f398cab98040a51faba283)
@@ -22,7 +22,6 @@
 using NUnit.Framework;
 using Ringtoets.Common.Service.MessageProviders;
 using Ringtoets.GrassCoverErosionOutwards.Service.MessageProviders;
-using Ringtoets.GrassCoverErosionOutwards.Service.Properties;
 
 namespace Ringtoets.GrassCoverErosionOutwards.Service.Test.MessageProviders
 {
@@ -52,7 +51,7 @@
             var calculationName = provider.GetCalculationName(name);
 
             // Assert
-            var expectedName = string.Format(Resources.GrassCoverErosionOutwardsPlugin_Name_DesignWaterLevel_for_location_0_, name);
+            var expectedName = string.Format("Waterstand bij doorsnede-eis voor locatie '{0}'", name);
             Assert.AreEqual(expectedName, calculationName);
         }
 
@@ -69,7 +68,7 @@
             var activityName = provider.GetActivityName(name);
 
             // Assert
-            var expectedName = string.Format(Resources.GrassCoverErosionOutwardsPlugin_Name_Calculate_DesignWaterLevel_for_location_0_, name);
+            var expectedName = string.Format("Waterstand bij doorsnede-eis berekenen voor locatie '{0}'", name);
             Assert.AreEqual(expectedName, activityName);
         }
 
@@ -81,12 +80,14 @@
         {
             // Setup
             var provider = new GrassCoverErosionOutwardsDesignWaterLevelCalculationMessageProvider();
+            var failureMessage = "It failed!";
 
             // Call
-            var message = provider.GetCalculationFailedMessage(name);
+            var message = provider.GetCalculationFailedMessage(name, failureMessage);
 
             // Assert
-            var expectedMessage = string.Format(Resources.GrassCoverErosionOutwardsPlugin_Calculate_Error_in_DesignWaterLevel_0_calculation, name);
+            var expectedMessage = string.Format("Er is een fout opgetreden tijdens de Waterstand bij doorsnede-eis berekening '{0}'. Bekijk het foutrapport door op details te klikken.\r\n{1}",
+                                                name, failureMessage);
             Assert.AreEqual(expectedMessage, message);
         }
 
@@ -103,8 +104,25 @@
             var message = provider.GetCalculatedNotConvergedMessage(name);
 
             // Assert
-            var expectedMessage = string.Format(Resources.GrassCoverErosionOutwardsPlugin_DesignWaterLevel_calculation_for_location_0_not_converged, name);
+            var expectedMessage = string.Format("Waterstand bij doorsnede-eis berekening voor locatie '{0}' is niet geconvergeerd.", name);
             Assert.AreEqual(expectedMessage, message);
         }
+
+        [Test]
+        [TestCase(null)]
+        [TestCase("")]
+        [TestCase("value")]
+        public void GetCalculationFailedUnexplainedMessage_ValidNames_ExpectedValues(string name)
+        {
+            // Setup
+            var provider = new GrassCoverErosionOutwardsDesignWaterLevelCalculationMessageProvider();
+
+            // Call
+            var message = provider.GetCalculationFailedUnexplainedMessage(name);
+
+            // Assert
+            var expectedMessage = string.Format("Er is een fout opgetreden tijdens de Waterstand bij doorsnede-eis berekening '{0}'. Er is geen foutrapport beschikbaar", name);
+            Assert.AreEqual(expectedMessage, message);
+        }
     }
 }
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