4 files changed, 69 insertions, 2 deletions
diff --git a/src/mailman/interfaces/domain.py b/src/mailman/interfaces/domain.py
index 33d835325..d5cbf8e2b 100644
--- a/src/mailman/interfaces/domain.py
+++ b/src/mailman/interfaces/domain.py
@@ -89,7 +89,7 @@ class IDomain(Interface):
         'The human readable description of the domain name.')
 
     owners = Attribute("""\
-        The relationship with the user database representing domain owners""")
+        The relationship with the user database representing domain owners.""")
 
     mailing_lists = Attribute(
         """All mailing lists for this domain.
diff --git a/src/mailman/rest/tests/test_domains.py b/src/mailman/rest/tests/test_domains.py
index 716ded580..9d03859ef 100644
--- a/src/mailman/rest/tests/test_domains.py
+++ b/src/mailman/rest/tests/test_domains.py
@@ -27,6 +27,7 @@ import unittest
 
 from mailman.app.lifecycle import create_list
 from mailman.database.transaction import transaction
+from mailman.interfaces.domain import IDomainManager
 from mailman.interfaces.listmanager import IListManager
 from mailman.testing.helpers import call_api
 from mailman.testing.layers import RESTLayer
@@ -54,6 +55,21 @@ class TestDomains(unittest.TestCase):
             'http://localhost:9001/3.0/domains', data, method="POST")
         self.assertEqual(response.status, 201)
 
+    def test_domain_create_with_single_owner(self):
+        # Creating domain with single owner should not raise InvalidEmailError.
+        content, response = call_api(
+            'http://localhost:9001/3.0/domains', dict(
+                mail_host='example.net',
+                owner='anne@example.com',
+                ),
+            method='POST')
+        self.assertEqual(response.status, 201)
+        # The domain has the expected owner.
+        domain = getUtility(IDomainManager).get('example.net')
+        self.assertEqual(
+            [list(owner.addresses)[0].email for owner in domain.owners],
+            ['anne@example.com'])
+
     def test_bogus_endpoint_extension(self):
         # /domains/<domain>/lists/<anything> is not a valid endpoint.
         with self.assertRaises(HTTPError) as cm:
@@ -102,6 +118,7 @@ class TestDomains(unittest.TestCase):
         self.assertEqual(cm.exception.code, 404)
 
 
+
 
 class TestDomainOwners(unittest.TestCase):
     layer = RESTLayer
diff --git a/src/mailman/rest/tests/test_validator.py b/src/mailman/rest/tests/test_validator.py
new file mode 100644
index 000000000..c670fc77c
--- /dev/null
+++ b/src/mailman/rest/tests/test_validator.py
@@ -0,0 +1,48 @@
+# Copyright (C) 2015 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Test REST validators."""
+
+__all__ = [
+    'TestValidators',
+    ]
+
+
+import unittest
+
+from mailman.rest.validator import list_of_strings_validator
+from mailman.testing.layers import RESTLayer
+
+
+
+class TestValidators(unittest.TestCase):
+    layer = RESTLayer
+
+    def test_list_of_strings_validator_single(self):
+        # This validator should turn a single key into a list of keys.
+        self.assertEqual(list_of_strings_validator('ant'), ['ant'])
+
+    def test_list_of_strings_validator_multiple(self):
+        # This validator should turn a single key into a list of keys.
+        self.assertEqual(
+            list_of_strings_validator(['ant', 'bee', 'cat']),
+            ['ant', 'bee', 'cat'])
+
+    def test_list_of_strings_validator_invalid(self):
+        # Strings are required.
+        self.assertRaises(ValueError, list_of_strings_validator, 7)
+        self.assertRaises(ValueError, list_of_strings_validator, ['ant', 7])
diff --git a/src/mailman/rest/validator.py b/src/mailman/rest/validator.py
index d09886e36..720d7adc1 100644
--- a/src/mailman/rest/validator.py
+++ b/src/mailman/rest/validator.py
@@ -68,7 +68,9 @@ def language_validator(code):
 
 
 def list_of_strings_validator(values):
-    """Turn a list of things into a list of unicodes."""
+    """Turn a list of things, or a single thing, into a list of unicodes."""
+    if not isinstance(values, (list, tuple)):
+        values = [values]
     for value in values:
         if not isinstance(value, str):
             raise ValueError('Expected str, got {!r}'.format(value))