Moving to centralized ServiceClient refs
diff --git a/openstack/networking/v2/extensions/requests_test.go b/openstack/networking/v2/extensions/requests_test.go
index 5741280..ac78747 100755
--- a/openstack/networking/v2/extensions/requests_test.go
+++ b/openstack/networking/v2/extensions/requests_test.go
@@ -5,29 +5,17 @@
 	"net/http"
 	"testing"
 
-	"github.com/rackspace/gophercloud"
 	"github.com/rackspace/gophercloud/pagination"
 	th "github.com/rackspace/gophercloud/testhelper"
 )
 
-const TokenID = "123"
-
-func ServiceClient() *gophercloud.ServiceClient {
-	return &gophercloud.ServiceClient{
-		Provider: &gophercloud.ProviderClient{
-			TokenID: TokenID,
-		},
-		Endpoint: th.Endpoint(),
-	}
-}
-
 func TestList(t *testing.T) {
 	th.SetupHTTP()
 	defer th.TeardownHTTP()
 
 	th.Mux.HandleFunc("/v2.0/extensions", func(w http.ResponseWriter, r *http.Request) {
 		th.TestMethod(t, r, "GET")
-		th.TestHeader(t, r, "X-Auth-Token", TokenID)
+		th.TestHeader(t, r, "X-Auth-Token", th.TokenID)
 
 		w.Header().Add("Content-Type", "application/json")
 
@@ -49,7 +37,7 @@
 
 	count := 0
 
-	List(ServiceClient()).EachPage(func(page pagination.Page) (bool, error) {
+	List(th.ServiceClient()).EachPage(func(page pagination.Page) (bool, error) {
 		count++
 		actual, err := ExtractExtensions(page)
 		if err != nil {
@@ -83,7 +71,7 @@
 
 	th.Mux.HandleFunc("/v2.0/extensions/agent", func(w http.ResponseWriter, r *http.Request) {
 		th.TestMethod(t, r, "GET")
-		th.TestHeader(t, r, "X-Auth-Token", TokenID)
+		th.TestHeader(t, r, "X-Auth-Token", th.TokenID)
 
 		w.Header().Add("Content-Type", "application/json")
 		w.WriteHeader(http.StatusOK)
@@ -101,7 +89,7 @@
 }
 		`)
 
-		ext, err := Get(ServiceClient(), "agent").Extract()
+		ext, err := Get(th.ServiceClient(), "agent").Extract()
 		th.AssertNoErr(t, err)
 
 		th.AssertEquals(t, ext.Updated, "2013-02-03T10:00:00-00:00")