Index: Ringtoets/Piping/test/Ringtoets.Piping.Service.Test/PipingCalculationActivityTest.cs
===================================================================
diff -u -r14de3deecd2cff7f6abe41ed6dc5dc016c4c81e0 -ra8354e83db04899a5e94b92c8803d31131a8b480
--- Ringtoets/Piping/test/Ringtoets.Piping.Service.Test/PipingCalculationActivityTest.cs	(.../PipingCalculationActivityTest.cs)	(revision 14de3deecd2cff7f6abe41ed6dc5dc016c4c81e0)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Service.Test/PipingCalculationActivityTest.cs	(.../PipingCalculationActivityTest.cs)	(revision a8354e83db04899a5e94b92c8803d31131a8b480)
@@ -69,11 +69,14 @@
             TestHelper.AssertLogMessages(call, messages =>
             {
                 var msgs = messages.ToArray();
-                Assert.AreEqual(4, msgs.Length);
-                StringAssert.StartsWith(String.Format("Validatie van '{0}' gestart om: ", invalidPipingCalculation.Name), msgs[0]);
+                Assert.AreEqual(7, msgs.Length);
+                StringAssert.StartsWith(String.Format("Validatie van '{0}' gestart om: ", invalidPipingCalculation.Name), msgs.First());
                 StringAssert.StartsWith("Validatie mislukt: ", msgs[1]);
                 StringAssert.StartsWith("Validatie mislukt: ", msgs[2]);
-                StringAssert.StartsWith(String.Format("Validatie van '{0}' beëindigd om: ", invalidPipingCalculation.Name), msgs[3]);
+                StringAssert.StartsWith("Validatie mislukt: ", msgs[3]);
+                StringAssert.StartsWith("Validatie mislukt: ", msgs[4]);
+                StringAssert.StartsWith("Validatie mislukt: ", msgs[5]);
+                StringAssert.StartsWith(String.Format("Validatie van '{0}' beëindigd om: ", invalidPipingCalculation.Name), msgs.Last());
             });
             Assert.AreEqual(ActivityState.Failed, activity.State);
             Assert.AreEqual(originalOutput, invalidPipingCalculation.Output);