More fleshing out of the users REST API.

* Add a 'uid factory' which allows us to return predictable unique ids for
  various testing purposes, e.g. user ids.  This should work even in the case
  of cross-subprocess uid generation.
* REST access to individual users, or the set of all users.
* User objects now have a created_on attribute.
* Users can be created through the web, but must have an email address.
* Add a [devmode] 'testing' variable for communicating to qrunner subprocesses
  that we're running in testing mode.  This allows us to coordinate factories
  and such in the qrunner processes.
* layers.is_testing() for more consistent API.
* Give AddressError a .address attribute for better diagnostics.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/mailman/utilities/datetime.py b/src/mailman/utilities/datetime.py
index 9dcd21f1e..1ee727da4 100644
--- a/src/mailman/utilities/datetime.py
+++ b/src/mailman/utilities/datetime.py
@@ -36,7 +36,7 @@ __all__ = [
 
 import datetime
 
-from mailman.testing.layers import MockAndMonkeyLayer
+from mailman.testing import layers
 
 
 
@@ -51,12 +51,12 @@ class DateFactory:
         # We can't automatically fast-forward because some tests require us to
         # stay on the same day for a while, e.g. autorespond.txt.
         return (self.predictable_now
-                if MockAndMonkeyLayer.testing_mode
+                if layers.is_testing()
                 else datetime.datetime.now(tz))
 
     def today(self):
         return (self.predictable_today
-                if MockAndMonkeyLayer.testing_mode
+                if layers.is_testing()
                 else datetime.date.today())
 
     @classmethod
@@ -74,4 +74,4 @@ factory = DateFactory()
 factory.reset()
 today = factory.today
 now = factory.now
-MockAndMonkeyLayer.register_reset(factory.reset)
+layers.MockAndMonkeyLayer.register_reset(factory.reset)