Get user finds the correct user
Create updates the Id property of a user to match the autogenerated id.
Add fetch by email address
Add test for retrieval failure.
Add test for unique email during create
Add test for conflicting display name during creation
Refactoring to provide common mechanism for creating an email address.
Update delete and update interface definitions to indicate operation success/failure. Updated underlying base class code to allow this to be detected. Add delete success/failure tests.
Add test/code for updating non-existent user.
Add update tests/code.
Add test for active bit update
Add tests/code for update conflicts and
Tests to ensure created date is not updated