jira: Use username for user lists

Since we don't support user list manipulation by using
lists of email addresses yet, present user names instead
of email addresses (note: username _may_ also be an email
address in Jira) when rendering lists of users.

For assignee and fields that are single users, we do
support assigning by email address since we search Jira
for the username.

jirate/jira_fields.py

@@ -55,7 +55,9 @@ def user(field, fields):
 
 
 def user_list(field, fields):
-    return _list_of_key(field, 'emailAddress')
+    # Until we take email addresses as input, we should use
+    # user names only when presenting lists of users
+    return _list_of_key(field, 'name')
 
 
 def array(field, fields):

jirate/tests/__init__.py

@@ -356,8 +356,8 @@
                                                   {'name': 'Option2', 'value': 'option_two'}],
                           'customfield_1234570': [{'name': 'Version1', 'value': 'version_one'},
                                                   {'name': 'Version2', 'value': 'version_two'}],
-                          'customfield_1234571': [{'key': 'user1', 'displayName': 'One', 'emailAddress': '[email protected]'},
-                                                  {'key': 'user2', 'displayName': 'Two', 'emailAddress': '[email protected]'}],
+                          'customfield_1234571': [{'key': 'user1', 'name': 'user-one', 'displayName': 'One', 'emailAddress': '[email protected]'},
+                                                  {'key': 'user2', 'name': '[email protected]', 'displayName': 'Two', 'emailAddress': '[email protected]'}],
                           'customfield_1234572': ['one', 'two', 'three'],
                           'customfield_1234573': [{'name': 'group1'}, {'name': 'group2'}],
                           'customfield_1234574': ['one', 2.0],

jirate/tests/test_render.py

@@ -81,8 +81,9 @@ def test_render_code_override():
     # Array of Versions (names),
     pytest.param('customfield_1234570', 'Array of Versions', 'Version1, Version2'),
 
-    # Array of Users (email addresses),
-    pytest.param('customfield_1234571', 'Array of Users', '[email protected], [email protected]'),
+    # Array of Users (user names),
+    # TODO: Support setting arrays of users by email address
+    pytest.param('customfield_1234571', 'Array of Users', 'user-one, [email protected]'),
 
     # Array of strings
     pytest.param('customfield_1234572', 'Array of Strings', 'one, two, three'),