added sample tests

material_management/tests.py

@@ -0,0 +1,10 @@
+import unittest
+
+import sys
+sys.path.append('/Users/rushabh/Workbench/www/wnframework/cgi-bin/')
+sys.path.append('/Users/rushabh/Workbench/www/erpnext/')
+
+from material_management.doctype.delivery_note.tests import *
+
+if __name__ == '__main__':
+	unittest.main()