Index: Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Read/FailureMechanismEntityTest.cs
===================================================================
diff -u -r209bfd7b71ef53a57e1a52337f1333d38122282f -r36ed0869d04cd54d2aee0abbd0ec88100334e097
--- Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Read/FailureMechanismEntityTest.cs	(.../FailureMechanismEntityTest.cs)	(revision 209bfd7b71ef53a57e1a52337f1333d38122282f)
+++ Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Read/FailureMechanismEntityTest.cs	(.../FailureMechanismEntityTest.cs)	(revision 36ed0869d04cd54d2aee0abbd0ec88100334e097)
@@ -90,6 +90,27 @@
         }
 
         [Test]
+        public void ReadAsPipingFailureMechanism_WithSurfaceLines_ReturnsNewPipingFailureMechanismWithSurfaceLinesSet()
+        {
+            // Setup
+            var entity = new FailureMechanismEntity
+            {
+                SurfaceLineEntities =
+                {
+                    new SurfaceLineEntity(),
+                    new SurfaceLineEntity()
+                }
+            };
+            var collector = new ReadConversionCollector();
+
+            // Call
+            var failureMechanism = entity.ReadAsPipingFailureMechanism(collector);
+
+            // Assert
+            Assert.AreEqual(2, failureMechanism.SurfaceLines.Count);
+        }
+
+        [Test]
         public void ReadAsPipingFailureMechanism_WithSectionsSet_ReturnsNewPipingFailureMechanismWithFailureMechanismSectionsSet()
         {
             // Setup