Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Data.Test/HydraulicBoundaryDatabaseTest.cs
===================================================================
diff -u -r33c64ea2cd6b287bf5954e63a548d89dadb7f153 -r2310b1df9f3fcfa1e01ee6eec2206a4dd0f38f5c
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Data.Test/HydraulicBoundaryDatabaseTest.cs	(.../HydraulicBoundaryDatabaseTest.cs)	(revision 33c64ea2cd6b287bf5954e63a548d89dadb7f153)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Data.Test/HydraulicBoundaryDatabaseTest.cs	(.../HydraulicBoundaryDatabaseTest.cs)	(revision 2310b1df9f3fcfa1e01ee6eec2206a4dd0f38f5c)
@@ -35,8 +35,26 @@
             // Assert
             Assert.IsNullOrEmpty(null, hydraulicBoundaryDatabase.FilePath);
             Assert.IsNullOrEmpty(null, hydraulicBoundaryDatabase.Version);
-            Assert.IsInstanceOf<IEnumerable<HydraulicBoundaryLocation>>(hydraulicBoundaryDatabase.Locations);
+            Assert.IsInstanceOf<ICollection<HydraulicBoundaryLocation>>(hydraulicBoundaryDatabase.Locations);
             CollectionAssert.IsEmpty(hydraulicBoundaryDatabase.Locations);
         }
+
+        [Test]
+        public void ClearLocations_Always_EmtpyLocationCollection()
+        {
+            // Setup
+            HydraulicBoundaryDatabase hydraulicBoundaryDatabase = new HydraulicBoundaryDatabase();
+            var location = hydraulicBoundaryDatabase.Locations;
+            location.Add(new HydraulicBoundaryLocation(1, "test", 1.0, 2.0));
+
+            // Precondition
+            CollectionAssert.IsNotEmpty(location);
+
+            // Call
+            hydraulicBoundaryDatabase.ClearLocations();
+
+            // Assert
+            CollectionAssert.IsEmpty(location);
+        }
     }
 }
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