Index: Ringtoets/Integration/test/Ringtoets.Integration.Service.Test/MessageProviders/DesignWaterLevelCalculationMessageProviderTest.cs
===================================================================
diff -u -rc399d2d0b6ce75c643c256bf605b748fc1dea88b -rc7d39e2c22a5df98a9f398cab98040a51faba283
--- Ringtoets/Integration/test/Ringtoets.Integration.Service.Test/MessageProviders/DesignWaterLevelCalculationMessageProviderTest.cs	(.../DesignWaterLevelCalculationMessageProviderTest.cs)	(revision c399d2d0b6ce75c643c256bf605b748fc1dea88b)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Service.Test/MessageProviders/DesignWaterLevelCalculationMessageProviderTest.cs	(.../DesignWaterLevelCalculationMessageProviderTest.cs)	(revision c7d39e2c22a5df98a9f398cab98040a51faba283)
@@ -52,7 +52,7 @@
             var calculationName = provider.GetCalculationName(name);
 
             // Assert
-            var expectedName = string.Format(Resources.DesignWaterLevelCalculationService_Name_Calculate_assessment_level_for_location_0_, name);
+            var expectedName = string.Format("Toetspeil berekenen voor locatie '{0}'", name);
             Assert.AreEqual(expectedName, calculationName);
         }
 
@@ -69,7 +69,7 @@
             var activityName = provider.GetActivityName(name);
 
             // Assert
-            var expectedName = string.Format(Resources.DesignWaterLevelCalculationService_Name_Calculate_assessment_level_for_location_0_, name);
+            var expectedName = string.Format("Toetspeil berekenen voor locatie '{0}'", name);
             Assert.AreEqual(expectedName, activityName);
         }
 
@@ -81,12 +81,14 @@
         {
             // Setup
             var provider = new DesignWaterLevelCalculationMessageProvider();
+            var failureMessage = "It failed!";
 
             // Call
-            var message = provider.GetCalculationFailedMessage(name);
+            var message = provider.GetCalculationFailedMessage(name, failureMessage);
 
             // Assert
-            var expectedMessage = string.Format(Resources.DesignWaterLevelCalculationService_Calculate_Error_in_design_water_level_0_calculation, name);
+            var expectedMessage = string.Format("Er is een fout opgetreden tijdens de toetspeil berekening '{0}'. Bekijk het foutrapport door op details te klikken.\r\n{1}",
+                                                name, failureMessage);
             Assert.AreEqual(expectedMessage, message);
         }
 
@@ -103,8 +105,25 @@
             var message = provider.GetCalculatedNotConvergedMessage(name);
 
             // Assert
-            var expectedMessage = string.Format(Resources.DesignWaterLevelCalculationActivity_DesignWaterLevel_calculation_for_location_0_not_converged, name);
+            var expectedMessage = string.Format("Toetspeil berekening voor locatie {0} is niet geconvergeerd.", name);
             Assert.AreEqual(expectedMessage, message);
         }
+
+        [Test]
+        [TestCase(null)]
+        [TestCase("")]
+        [TestCase("value")]
+        public void GetCalculationFailedUnexplainedMessage_VariousParameters_ReturnsExpectedValue(string name)
+        {
+            // Setup
+            var provider = new DesignWaterLevelCalculationMessageProvider();
+
+            // Call
+            var message = provider.GetCalculationFailedUnexplainedMessage(name);
+
+            // Assert
+            var expectedMessage = string.Format("Er is een fout opgetreden tijdens de toetspeil berekening '{0}'. Er is geen foutrapport beschikbaar.", name);
+            Assert.AreEqual(expectedMessage, message);
+        }
     }
 }
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