Added sniffer

.gitignore

@@ -1,2 +1,3 @@
 *.pyc
 .ropeproject
+openstack_neat.egg-info

NOTICE

@@ -12,6 +12,10 @@ module distributions developed by Tarek Ziadé, released under the
 Python Software Foundation License, and available from
 https://bitbucket.org/tarek/distribute
 
+This software uses sniffer, a Python auto-testing tool developed by
+Jeff Hui, released under the MIT License, and available from
+https://github.com/jeffh/sniffer
+
 This software uses pyqcy, a QuickCheck-like testing framework for
 Python developed by Karol Kuczmarski, released under the FreeBSD
 License, and available from https://github.com/Xion/pyqcy

scent.py

@@ -0,0 +1,28 @@
+from sniffer.api import *
+from subprocess import call
+import os
+
+
+# This gets invoked on every file that gets changed in the directory. Return
+# True to invoke any runnable functions, False otherwise.
+#
+# This fires runnables only if files ending with .py extension and not prefixed
+# with a period.
+@file_validator
+def py_files(filename):
+    return filename.endswith('.py') and \
+        not filename.endswith('flymake.py') and \
+        not os.path.basename(filename).startswith('.')
+
+
+# This gets invoked for verification. This is ideal for running tests of some sort.
+# For anything you want to get constantly reloaded, do an import in the function.
+#
+# sys.argv[0] and any arguments passed via -x prefix will be sent to this function as
+# it's arguments. The function should return logically True if the validation passed
+# and logicially False if it fails.
+#
+# This example simply runs nose.
+@runnable
+def execute_tests(*args):
+    return not call(['python2', 'setup.py', '-q', 'test'])