diff --git a/tests/unit_tests.py b/tests/unit_tests.py
new file mode 100755
index 0000000..8f4c1a7
--- /dev/null
+++ b/tests/unit_tests.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Time-stamp: <2013-05-09 17:38:22 vk>
+
+## ~/src/vktag % PYTHONPATH="~/src/vktag:" tests/unit_tests.py --verbose
+
+import unittest
+import os
+import vktag
+import tempfile
+import os.path
+from shutil import rmtree
+
+class TestFoo(unittest.TestCase):
+
+    tempdir = None
+    testfile_without_tags = 'file_without_tags.txt'
+    testfile_with_multiple_dots_and_no_tags = 'file.without.tags.txt'
+    testfile_with_tag_foo = 'filename -- foo.txt'
+    testfile_with_tag_bar = 'filename -- bar.txt'
+
+    def setUp(self):
+
+        ## create temporary directory:
+        self.tempdir = tempfile.mkdtemp()
+        os.chdir(self.tempdir)
+        print "\ntemporary directory: " + self.tempdir
+
+        ## create set of test files:
+        self.create_tmp_file(self.testfile_without_tags)
+        self.create_tmp_file(self.testfile_with_multiple_dots_and_no_tags)
+        self.create_tmp_file(self.testfile_with_tag_foo)
+        self.create_tmp_file(self.testfile_with_tag_bar)
+
+        ## double-check set-up:
+        self.assertTrue(self.file_exists(self.testfile_without_tags))
+
+
+    def create_tmp_file(self, name):
+        
+        open(os.path.join(self.tempdir, name), 'w')
+
+
+    def file_exists(self, name):
+        
+        return os.path.isfile(os.path.join(self.tempdir, name))
+
+
+    def test_all(self):
+
+        print "testing: foo bar\n"
+        self.assertEqual(3 * 4, 12)
+
+
+    def tearDown(self):
+        
+        rmtree(self.tempdir)
+        
+
+if __name__ == '__main__':
+    unittest.main()