all: use MgoSuite rather than ZkSuite

cmd/juju/status_test.go

 package main
 
 import (
         "bytes"
         "encoding/json"
         "fmt"
         "net/url"
 
         . "launchpad.net/gocheck"
         "launchpad.net/goyaml"
@@ skipping 230 matching lines @@
                                                         "agent-version": "0.0.0",
                                                         "machine":       1,
                                                         "status":        "pending",
                                                 },
                                         },
                                 },
                         },
                 },
         },
 
-        // TODO(dfc) test failing components by destructively mutating zk under the hood
+        // TODO(dfc) test failing components by destructively mutating the state under the hood
 }
 
 func (s *StatusSuite) testStatus(format string, marshal func(v interface{}) ([]byte, error), unmarshal func(data []byte, v interface{}) error, c *C) {
         for _, t := range statusTests {
                 c.Logf("testing %s: %s", format, t.title)
                 t.prepare(s.State, s.Conn, c)
                 ctx := &cmd.Context{c.MkDir(), &bytes.Buffer{}, &bytes.Buffer{}, &bytes.Buffer{}}
                 code := cmd.Main(&StatusCommand{}, ctx, []string{"--format", format})
                 c.Check(code, Equals, 0)
                 c.Assert(ctx.Stderr.(*bytes.Buffer).String(), Equals, "")
@@ skipping 17 matching lines @@
         }
 }
 
 func (s *StatusSuite) TestYamlStatus(c *C) {
         s.testStatus("yaml", goyaml.Marshal, goyaml.Unmarshal, c)
 }
 
 func (s *StatusSuite) TestJsonStatus(c *C) {
         s.testStatus("json", json.Marshal, json.Unmarshal, c)
 }