[test][utils] Add random id generator

beat/core/test/utils.py

@@ -30,6 +30,8 @@
 
 import os
 import shutil
+import string
+import random
 
 import nose
 
@@ -161,3 +163,13 @@ def cleanup():
         shutil.copymode(tmp_prefix, tmp_prefix + '.new')
         shutil.rmtree(tmp_prefix)
         shutil.move(tmp_prefix + '.new', tmp_prefix)
+
+
+#----------------------------------------------------------
+
+
+def id_generator(size=6, chars=string.ascii_uppercase + string.digits):
+    """ Simple id generator based on
+    https://stackoverflow.com/a/2257449/5843716
+    """
+    return ''.join(random.choice(chars) for _ in range(size))