Index: Ringtoets/Common/test/Ringtoets.Common.IO.Test/HydraRing/DesignTablesSettingsProviderTest.cs
===================================================================
diff -u -rba15b57903cc8a77a35dcf0efa392b5aa7a5e70e -r16f6bd5805e77d549cded91fc48fff35ffbdec00
--- Ringtoets/Common/test/Ringtoets.Common.IO.Test/HydraRing/DesignTablesSettingsProviderTest.cs	(.../DesignTablesSettingsProviderTest.cs)	(revision ba15b57903cc8a77a35dcf0efa392b5aa7a5e70e)
+++ Ringtoets/Common/test/Ringtoets.Common.IO.Test/HydraRing/DesignTablesSettingsProviderTest.cs	(.../DesignTablesSettingsProviderTest.cs)	(revision 16f6bd5805e77d549cded91fc48fff35ffbdec00)
@@ -19,7 +19,9 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
+using System;
 using System.IO;
+using Core.Common.IO.Exceptions;
 using Core.Common.TestUtil;
 using NUnit.Framework;
 using Ringtoets.Common.IO.HydraRing;
@@ -36,6 +38,31 @@
             Path.Combine("HydraRingSettingsDatabaseReader", "7_67.config.sqlite"));
 
         [Test]
+        [TestCase("")]
+        [TestCase("  ")]
+        [TestCase("!")]
+        [TestCase("nonExisting")]
+        public void Constructor_InvalidPath_ThrowCriticalFileReadException(string databasePath)
+        {
+            // Call
+            TestDelegate test = () => new DesignTablesSettingsProvider(databasePath);
+
+            // Assert
+            Assert.Throws<CriticalFileReadException>(test);
+        }
+
+        [Test]
+        public void Constructor_ValidPath_ReturnsNewInstance()
+        {
+            // Call
+            using (var provider = new DesignTablesSettingsProvider(completeDatabaseDataPath))
+            {
+                // Assert
+                Assert.IsInstanceOf<IDisposable>(provider);
+            }
+        }
+
+        [Test]
         [TestCase(HydraRingFailureMechanismType.QVariant, 700137, 0.98, 2.98)]
         [TestCase(HydraRingFailureMechanismType.WaveHeight, 700138, -2.0, 0)]
         [TestCase(HydraRingFailureMechanismType.DikesOvertopping, 700132, 2.0, 5.0)]