Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/FailureMechanism/FailureMechanismSectionTest.cs
===================================================================
diff -u -rdec46d5efaad5332ffb2a96e67ec11209ddc5515 -rce31448a066c084f755439f3e7d453bfb042b291
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/FailureMechanism/FailureMechanismSectionTest.cs	(.../FailureMechanismSectionTest.cs)	(revision dec46d5efaad5332ffb2a96e67ec11209ddc5515)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/FailureMechanism/FailureMechanismSectionTest.cs	(.../FailureMechanismSectionTest.cs)	(revision ce31448a066c084f755439f3e7d453bfb042b291)
@@ -86,7 +86,8 @@
             TestDelegate call = () => new FailureMechanismSection("name", geometryPoints);
 
             // Assert
-            TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentException>(call, "One or multiple elements are null.");
+            const string expectedMessage = "One or multiple elements are null.";
+            TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentException>(call, expectedMessage);
         }
 
         [Test]
@@ -96,7 +97,7 @@
             TestDelegate call = () => new FailureMechanismSection("", Enumerable.Empty<Point2D>());
 
             // Assert
-            string expectedMessage = "Vak moet minstens uit 1 punt bestaan.";
+            const string expectedMessage = "Vak moet minstens uit 1 punt bestaan.";
             TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentException>(call, expectedMessage);
         }