Begining to build in directory recursion for book scanning

tests/test_library.py

@@ -0,0 +1,18 @@
+import unittest
+from library import Catalogue
+
+
+class Testing(unittest.TestCase):
+
+    def test_libray_catalogue(self):
+        self.assertIsNotNone(Catalogue())
+
+    def test_library_catalogue_scan_folder(self):
+        self.assertIsInstance(Catalogue().scan_folder(), object)
+
+    def test_library_catalogue_compare_shelf_current(self):
+        self.assertIsInstance(Catalogue().compare_shelf_current(), Catalogue)
+
+
+if __name__ == '__main__':
+    unittest.main()