Started working on add/remove user support

state/user_test.go

 // Copyright 2013 Canonical Ltd.
 // Licensed under the AGPLv3, see LICENCE file for details.
 
 package state_test
 
 import (
         jc "github.com/juju/testing/checkers"
         gc "launchpad.net/gocheck"
 
         "launchpad.net/juju-core/state"
@@ skipping 140 matching lines @@
         c.Assert(lastHash, gc.Equals, afterHash)
 }
 
 func (s *UserSuite) TestName(c *gc.C) {
         u, err := s.State.AddUser("someuser", "")
         c.Assert(err, gc.IsNil)
 
         c.Assert(u.Name(), gc.Equals, "someuser")
         c.Assert(u.Tag(), gc.Equals, "user-someuser")
 }
+
+func (s *UserSuite) TestDeactivate(c *gc.C) {
+        u, err := s.State.AddUser("someuser", "")
+        c.Assert(err, gc.IsNil)
+        c.Assert(u.IsDeactivated(), gc.Equals, false)
+
+        err = u.Deactivate()
+        c.Assert(err, gc.IsNil)
+        c.Assert(u.IsDeactivated(), gc.Equals, true)
+        c.Assert(u.PasswordValid(""), gc.Equals, false)
+
+}
+
+func (s *UserSuite) TestCantDeactivateAdminUser(c *gc.C) {
+        u, err := s.State.User(state.AdminUser)
+        c.Assert(err, gc.IsNil)
+        err = u.Deactivate()
+        c.Assert(err, gc.ErrorMatches, "Can't deactivate admin user")
+}