Refactor OS fixtures
diff --git a/openstack/db/v1/users/fixtures.go b/openstack/db/v1/users/fixtures.go
index 25b75f1..516b335 100644
--- a/openstack/db/v1/users/fixtures.go
+++ b/openstack/db/v1/users/fixtures.go
@@ -1,6 +1,11 @@
 package users
 
-import "fmt"
+import (
+	"fmt"
+	"testing"
+
+	"github.com/rackspace/gophercloud/testhelper/fixture"
+)
 
 const user1 = `
 {"databases": [{"name": "databaseA"}],"name": "dbuser3"%s}
@@ -11,11 +16,22 @@
 `
 
 var (
-	pUser1 = fmt.Sprintf(user1, `,"password":"secretsecret"`)
-	pUser2 = fmt.Sprintf(user2, `,"password":"secretsecret"`)
+	instanceID = "{instanceID}"
+	_rootURL   = "/instances/" + instanceID + "/users"
+	pUser1     = fmt.Sprintf(user1, `,"password":"secretsecret"`)
+	pUser2     = fmt.Sprintf(user2, `,"password":"secretsecret"`)
+	createReq  = fmt.Sprintf(`{"users":[%s, %s]}`, pUser1, pUser2)
+	listResp   = fmt.Sprintf(`{"users":[%s, %s]}`, fmt.Sprintf(user1, ""), fmt.Sprintf(user2, ""))
 )
 
-var (
-	createReq = fmt.Sprintf(`{"users":[%s, %s]}`, pUser1, pUser2)
-	listResp  = fmt.Sprintf(`{"users":[%s, %s]}`, fmt.Sprintf(user1, ""), fmt.Sprintf(user2, ""))
-)
+func HandleCreate(t *testing.T) {
+	fixture.SetupHandler(t, _rootURL, "POST", createReq, "", 202)
+}
+
+func HandleList(t *testing.T) {
+	fixture.SetupHandler(t, _rootURL, "GET", "", listResp, 200)
+}
+
+func HandleDelete(t *testing.T) {
+	fixture.SetupHandler(t, _rootURL+"/{userName}", "DELETE", "", "", 202)
+}