Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.TestUtil/Kernels/UpliftVan/UpliftVanKernelStub.cs
===================================================================
diff -u -r0b21aa321e05e40b31eb5ace3adc8bb9cebea68d -r6d3eb061666110382fd3379594f4da711cc9ad1e
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.TestUtil/Kernels/UpliftVan/UpliftVanKernelStub.cs	(.../UpliftVanKernelStub.cs)	(revision 0b21aa321e05e40b31eb5ace3adc8bb9cebea68d)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.TestUtil/Kernels/UpliftVan/UpliftVanKernelStub.cs	(.../UpliftVanKernelStub.cs)	(revision 6d3eb061666110382fd3379594f4da711cc9ad1e)
@@ -23,6 +23,7 @@
 using System.Collections.Generic;
 using Deltares.WTIStability;
 using Deltares.WTIStability.Data.Geo;
+using Deltares.WTIStability.Data.Standard;
 using Ringtoets.MacroStabilityInwards.KernelWrapper.Kernels.UpliftVan;
 
 namespace Ringtoets.MacroStabilityInwards.KernelWrapper.TestUtil.Kernels.UpliftVan
@@ -52,6 +53,11 @@
         /// </summary>
         public bool ThrowExceptionOnValidate { get; set; }
 
+        /// <summary>
+        /// Indicator whether a validation result must be returned when performing the validation.
+        /// </summary>
+        public bool ReturnValidationResults { get; set; }
+
         public SoilModel SoilModel { get; set; }
 
         public SoilProfile2D SoilProfile { get; set; }
@@ -98,15 +104,26 @@
             Calculated = true;
         }
 
-        public List<string> Validate()
+        public List<Tuple<ValidationResultType, string>> Validate()
         {
             if (ThrowExceptionOnValidate)
             {
                 throw new UpliftVanKernelWrapperException($"Message 1{Environment.NewLine}Message 2", new Exception());
             }
 
+            if (ReturnValidationResults)
+            {
+                return new List<Tuple<ValidationResultType, string>>
+                {
+                    new Tuple<ValidationResultType, string>(ValidationResultType.Warning, "Validation Warning"),
+                    new Tuple<ValidationResultType, string>(ValidationResultType.Error, "Validation Error"),
+                    new Tuple<ValidationResultType, string>(ValidationResultType.Info, "Validation Info"),
+                    new Tuple<ValidationResultType, string>(ValidationResultType.Debug, "Validation Debug")
+                };
+            }
+
             Validated = true;
-            return new List<string>();
+            return new List<Tuple<ValidationResultType, string>>();
         }
     }
 }
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