Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Forms.Test/PresentationObjects/HeightStructuresContextTest.cs
===================================================================
diff -u -re775448bfb8290e43d62340a53a08723bbc035c6 -rce31448a066c084f755439f3e7d453bfb042b291
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Forms.Test/PresentationObjects/HeightStructuresContextTest.cs	(.../HeightStructuresContextTest.cs)	(revision e775448bfb8290e43d62340a53a08723bbc035c6)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Forms.Test/PresentationObjects/HeightStructuresContextTest.cs	(.../HeightStructuresContextTest.cs)	(revision ce31448a066c084f755439f3e7d453bfb042b291)
@@ -72,7 +72,8 @@
             TestDelegate call = () => new SimpleHeightStructuresContext<ObservableObject>(observableObject, null, assessmentSectionMock);
 
             // Assert
-            TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentNullException>(call, "Het hoogte kunstwerk toetsspoor mag niet 'null' zijn.");
+            const string expectedMessage = "Het hoogte kunstwerk toetsspoor mag niet 'null' zijn.";
+            TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentNullException>(call, expectedMessage);
             mockRepository.VerifyAll();
         }
 
@@ -87,7 +88,8 @@
             TestDelegate call = () => new SimpleHeightStructuresContext<ObservableObject>(observableObject, failureMechanism, null);
 
             // Assert
-            TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentNullException>(call, "Het traject mag niet 'null' zijn.");
+            const string expectedMessage = "Het traject mag niet 'null' zijn.";
+            TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentNullException>(call, expectedMessage);
         }
 
         [Test]