Add a testbase package with no juju-core deps.

state/initialize_test.go

 // Copyright 2013 Canonical Ltd.
 // Licensed under the AGPLv3, see LICENCE file for details.
 
 package state_test
 
 import (
         gc "launchpad.net/gocheck"
 
         "launchpad.net/juju-core/constraints"
         "launchpad.net/juju-core/environs/config"
         "launchpad.net/juju-core/errors"
         "launchpad.net/juju-core/state"
         "launchpad.net/juju-core/testing"
         jc "launchpad.net/juju-core/testing/checkers"
+        "launchpad.net/juju-core/testing/testbase"
 )
 
 type InitializeSuite struct {
         testing.MgoSuite
-        testing.LoggingSuite
+        testbase.LoggingSuite
         State *state.State
 }
 
 var _ = gc.Suite(&InitializeSuite{})
 
 func (s *InitializeSuite) SetUpSuite(c *gc.C) {
         s.LoggingSuite.SetUpSuite(c)
         s.MgoSuite.SetUpSuite(c)
 }
 
@@ skipping 102 matching lines @@
         st := state.TestingInitialize(c, good)
         st.Close()
         err = s.State.SetEnvironConfig(bad)
         c.Assert(err, gc.ErrorMatches, "agent-version must always be set in state")
 
         // EnvironConfig remains inviolate.
         cfg, err := s.State.EnvironConfig()
         c.Assert(err, gc.IsNil)
         c.Assert(cfg.AllAttrs(), gc.DeepEquals, good.AllAttrs())
 }