Index: Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLineMetaImporter.cs
===================================================================
diff -u -r1de82b61e03283a14d380a48cd718ec65a98432d -r1537ed6c8364e79f9b4c869c95e3d9398a55a572
--- Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLineMetaImporter.cs	(.../ReferenceLineMetaImporter.cs)	(revision 1de82b61e03283a14d380a48cd718ec65a98432d)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLineMetaImporter.cs	(.../ReferenceLineMetaImporter.cs)	(revision 1537ed6c8364e79f9b4c869c95e3d9398a55a572)
@@ -84,9 +84,7 @@
 
         private void ValidateAndConnectTo(string folderpath)
         {
-            ValidateDirectory(folderpath);
-
-            var files = Directory.GetFiles(folderpath, "*.shp");
+            var files = GetShapeFilesInFolder(folderpath);
             if (files.Length == 0)
             {
                 var message = new FileReaderErrorMessageBuilder(
@@ -103,7 +101,7 @@
             }
         }
 
-        private static void ValidateDirectory(string path)
+        private static string[] GetShapeFilesInFolder(string path)
         {
             if (String.IsNullOrWhiteSpace(path))
             {
@@ -113,7 +111,7 @@
 
             try
             {
-                Path.GetFullPath(path);
+                return Directory.GetFiles(path, "*.shp");
             }
             catch (ArgumentException e)
             {
Index: Ringtoets/Common/test/Ringtoets.Common.IO.Test/ReferenceLineMetaImporterTest.cs
===================================================================
diff -u -r1de82b61e03283a14d380a48cd718ec65a98432d -r1537ed6c8364e79f9b4c869c95e3d9398a55a572
--- Ringtoets/Common/test/Ringtoets.Common.IO.Test/ReferenceLineMetaImporterTest.cs	(.../ReferenceLineMetaImporterTest.cs)	(revision 1de82b61e03283a14d380a48cd718ec65a98432d)
+++ Ringtoets/Common/test/Ringtoets.Common.IO.Test/ReferenceLineMetaImporterTest.cs	(.../ReferenceLineMetaImporterTest.cs)	(revision 1537ed6c8364e79f9b4c869c95e3d9398a55a572)
@@ -74,19 +74,38 @@
         public void Constructor_FilePathTooLong_ThrowsCriticalFileReadException()
         {
             // Setup
-            string pathToEmptyFolder = Path.Combine(testDataPath, new string('A', 260));
+            string pathTooLong = Path.Combine(testDataPath, new string('A', 260));
 
             // Call
-            TestDelegate call = () => new ReferenceLineMetaImporter(pathToEmptyFolder);
+            TestDelegate call = () => new ReferenceLineMetaImporter(pathTooLong);
 
             // Assert
             var expectedExceptionMessage = string.Format("Fout bij het lezen van bestand '{0}': De folder locatie is ongeldig.",
-                                                         pathToEmptyFolder);
+                                                         pathTooLong);
             CriticalFileReadException exception = Assert.Throws<CriticalFileReadException>(call);
             Assert.AreEqual(expectedExceptionMessage, exception.Message);
         }
 
         [Test]
+        public void Constructor_FilePathDoesNotExist_ThrowsCriticalFileReadException()
+        {
+            // Setup
+            string pathToNonExistingFolder = Path.Combine(testDataPath, "I do not exist");
+
+            // Precondition
+            Assert.IsFalse(Directory.Exists(pathToNonExistingFolder));
+
+            // Call
+            TestDelegate call = () => new ReferenceLineMetaImporter(pathToNonExistingFolder);
+
+            // Assert
+            var expectedExceptionMessage = string.Format("Fout bij het lezen van bestand '{0}': De folder locatie is ongeldig.",
+                                                         pathToNonExistingFolder);
+            CriticalFileReadException exception = Assert.Throws<CriticalFileReadException>(call);
+            Assert.AreEqual(expectedExceptionMessage, exception.Message);
+        }
+
+        [Test]
         public void Constructor_EmptyFolder_ThrowsCriticalFileReadException()
         {
             // Setup