diff --git a/tempest/test.py b/tempest/test.py
index d4123a4..f04aff7 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -24,6 +24,7 @@
 import uuid
 
 import fixtures
+import six
 import testscenarios
 import testtools
 
@@ -62,6 +63,23 @@
     return decorator
 
 
+def idempotent_id(id):
+    """Stub for metadata decorator"""
+    if not isinstance(id, six.string_types):
+        raise TypeError('Test idempotent_id must be string not %s'
+                        '' % type(id).__name__)
+    uuid.UUID(id)
+
+    def decorator(f):
+        f = testtools.testcase.attr('id-%s' % id)(f)
+        if f.__doc__:
+            f.__doc__ = 'Test idempotent id: %s\n%s' % (id, f.__doc__)
+        else:
+            f.__doc__ = 'Test idempotent id: %s' % id
+        return f
+    return decorator
+
+
 def get_service_list():
     service_list = {
         'compute': CONF.service_available.nova,