diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000000000000000000000000000000..7063009c96fd1eaf88463243724f6d73bc951d20
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "TestFiles"]
+	path = TestFiles
+	url = https://mmpe@gitlab.windenergy.dtu.dk/toolbox/TestFiles.git
diff --git a/TestFiles b/TestFiles
new file mode 160000
index 0000000000000000000000000000000000000000..2935f60df7616606d4a7951b12d967d513b2b37b
--- /dev/null
+++ b/TestFiles
@@ -0,0 +1 @@
+Subproject commit 2935f60df7616606d4a7951b12d967d513b2b37b
diff --git a/wetb/utils/test_files.py b/wetb/utils/test_files.py
index 3769622597cf0906815fc76e079159b7f4f9e667..6e230c3fe903baf6e51a12f3e53971a42ea4d6f1 100644
--- a/wetb/utils/test_files.py
+++ b/wetb/utils/test_files.py
@@ -5,39 +5,36 @@ Created on 20. jul. 2017
 '''
 import os
 import wetb
-import urllib.request
-from fileinput import filename
 import inspect
 wetb_rep_path = os.path.join(os.path.dirname(wetb.__file__), "../")                                   
-default_TestFile_rep_path=os.path.join(os.path.dirname(wetb.__file__) + "/../../TestFiles/")
 
-def get_test_file(filename):
+
+def _absolute_filename(filename):
     if not os.path.isabs(filename):
-        index = [os.path.realpath(s[1]) for s in inspect.stack()].index(__file__) + 1
-        tfp = os.path.dirname(inspect.stack()[index][1]) + "/test_files/"
+        index = [os.path.realpath(s[1]) for s in inspect.stack()].index(__file__) + 2
+        caller_module_path = os.path.dirname(inspect.stack()[index][1])
+        tfp = caller_module_path + "/test_files/"
         filename = tfp + filename
-    
+    return filename
+
+def get_test_file(filename):
+    filename = _absolute_filename(filename) 
     if os.path.exists(filename):
         return filename
     else:
-        filename2 = os.path.realpath(os.path.join(wetb_rep_path, 'downloaded_test_files', os.path.relpath(filename, wetb_rep_path)))
-        if not os.path.isfile(filename2):
-            #url = 'https://gitlab.windenergy.dtu.dk/toolbox/TestFiles/%s'%os.path.relpath(filename, wetb_rep_path)
-            url = 'http://tools.windenergy.dtu.dk/TestFiles/%s.txt'%os.path.relpath(filename, wetb_rep_path).replace("\\","/")
-            print ("download %s\nfrom %s"%(filename, url))
-            if not os.path.exists(os.path.dirname(filename2)):
-                os.makedirs(os.path.dirname(filename2))
-            urllib.request.urlretrieve(url, filename2)
-        return filename2
+        return os.path.join(wetb_rep_path, 'TestFiles', os.path.relpath(filename, wetb_rep_path))
+        
 
 
 
-def move2test_files(filename,TestFile_rep_path=default_TestFile_rep_path):
-    wetb_rep_path = os.path.join(os.path.dirname(wetb.__file__), "../")
-    folder = os.path.dirname(TestFile_rep_path + os.path.relpath(filename, wetb_rep_path))
+def move2test_files(filename):
+    filename = _absolute_filename(filename)
+    assert os.path.isfile(filename), filename
+    dst_filename = os.path.join(wetb_rep_path, 'TestFiles', os.path.relpath(filename, wetb_rep_path))
+    folder = os.path.dirname(dst_filename)
     if not os.path.exists(folder):
         os.makedirs(folder)
-    os.rename(filename, os.path.join(folder, os.path.basename(filename)+'.txt'))
+    os.rename(filename, dst_filename)
     
     
     
diff --git a/wetb/utils/tests/test_test_files.py b/wetb/utils/tests/test_test_files.py
index 76a2f09c8ddccb7a46d50268beb16c8a6cf36ba7..bba8267602f8796a0d132f7f84cf821fddafa7e4 100644
--- a/wetb/utils/tests/test_test_files.py
+++ b/wetb/utils/tests/test_test_files.py
@@ -13,28 +13,23 @@ import wetb
 tfp = os.path.join(os.path.dirname(__file__) + "/test_files/")
 class Test_test_files(unittest.TestCase):
     def test_move2test_files(self):
-        dst = test_files.default_TestFile_rep_path+ "wetb/utils/tests/test_files/tmp_test_file.txt"
+        dst = os.path.dirname(wetb.__file__) + "/../TestFiles/wetb/utils/tests/test_files/tmp_test_file.txt"
         src = tfp+'tmp_test_file.txt'
-        if os.path.isdir(test_files.default_TestFile_rep_path):
-            if os.path.isfile(dst):
-                os.remove(dst)
-            if not os.path.isfile(src):
-                with open(src,'w') as fid:
-                    fid.write("This is a test file")
-            move2test_files(src)
-            self.assertTrue(os.path.isfile(dst))
+        if os.path.isfile(dst):
+            os.remove(dst)
+        if not os.path.isfile(src):
+            with open(src,'w') as fid:
+                fid.write("This is a test file")
+        move2test_files(src)
+        self.assertTrue(os.path.isfile(dst))
 
     def test_test_files(self):
-        fn = os.path.realpath(os.path.dirname(wetb.__file__) + '/../downloaded_test_files/wetb/utils/tests/test_files/test_file.txt')
-        if os.path.isfile(fn):
-            os.remove(fn)
         fn1 = get_test_file(tfp+'test_file.txt')
         self.assertTrue(fn1)
-        os.remove(fn1)
         fn2 = get_test_file('test_file.txt')
-        self.assertEqual(fn2, fn)
-        self.assertTrue(os.path.isfile(fn2))
+        self.assertEqual(fn1, fn2)
         
+         
 
 if __name__ == "__main__":
     #import sys;sys.argv = ['', 'Test.testName']