debug-log: added new debug log api and command

state/api/client_test.go

 // Copyright 2013 Canonical Ltd.
 // Licensed under the AGPLv3, see LICENCE file for details.
 
 package api_test
 
 import (
         "fmt"
+        "net"
         "net/http"
 
         gc "launchpad.net/gocheck"
 
         "launchpad.net/juju-core/charm"
         jujutesting "launchpad.net/juju-core/juju/testing"
         "launchpad.net/juju-core/state/api"
         "launchpad.net/juju-core/state/api/params"
         "launchpad.net/juju-core/testing"
         jc "launchpad.net/juju-core/testing/checkers"
@@ skipping 40 matching lines @@
         c.Assert(savedURL.Revision, gc.Equals, 42)
 
         // Upload a charm directory again, revision should be bumped.
         savedURL, err = client.AddLocalCharm(curl, charmDir)
         c.Assert(err, gc.IsNil)
         c.Assert(savedURL.String(), gc.Equals, curl.WithRevision(43).String())
 
         // Finally, try the NotImplementedError by mocking the server
         // address to a handler that returns 405 Method Not Allowed for
         // POST.
+        lis, err := net.Listen("tcp", ":0")
+        c.Assert(err, gc.IsNil)
+        port := lis.Addr().(*net.TCPAddr).Port
+        url := fmt.Sprintf("localhost:%d", port)
         http.HandleFunc("/charms", func(w http.ResponseWriter, r *http.Request) {
                 if r.Method == "POST" {
                         http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
                 }
         })
         go func() {
-                err = http.ListenAndServe(":8900", nil)
+                err = http.Serve(lis, nil)
                 c.Assert(err, gc.IsNil)
         }()
 
-        api.SetServerRoot(client, "http://localhost:8900")
+        api.SetServerHostPort(client, url)
         _, err = client.AddLocalCharm(curl, charmArchive)
         c.Assert(err, jc.Satisfies, params.IsCodeNotImplemented)
 }