Index: DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/XmlAdapter.cs
===================================================================
diff -u -r4540 -r5397
--- DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/XmlAdapter.cs	(.../XmlAdapter.cs)	(revision 4540)
+++ DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/XmlAdapter.cs	(.../XmlAdapter.cs)	(revision 5397)
@@ -19,6 +19,7 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
+using System.Linq;
 using System.Text.RegularExpressions;
 
 namespace Deltares.DamEngine.TestHelpers;
@@ -43,4 +44,21 @@
         result = Regex.Replace(input, searchString, replacement, RegexOptions.IgnorePatternWhitespace);
         return result;
     }
+
+    public static string SelectLocations(string input, string[] locationNames)
+    {
+        string result = input;
+        const string searchString = @"<Location .*?</Location>";
+        MatchCollection locationBlocks = Regex.Matches(result, searchString, RegexOptions.Singleline);
+        for (int i = locationBlocks.Count - 1; i > -1; i--)
+        {
+            bool isMatch = locationNames.Any(locationName => Regex.IsMatch(locationBlocks[i].Value, "Name=" + "\"" + locationName + "\""));
+            if (!isMatch)
+            {
+                result = result.Remove(locationBlocks[i].Index, locationBlocks[i].Length);
+            }
+        }
+        return result;
+    }
+
 }
\ No newline at end of file