Add Instance result struct
diff --git a/rackspace/db/v1/instances/delegate_test.go b/rackspace/db/v1/instances/delegate_test.go
index 8470c0c..d995365 100644
--- a/rackspace/db/v1/instances/delegate_test.go
+++ b/rackspace/db/v1/instances/delegate_test.go
@@ -3,6 +3,7 @@
 import (
 	"testing"
 
+	"github.com/rackspace/gophercloud"
 	th "github.com/rackspace/gophercloud/testhelper"
 	fake "github.com/rackspace/gophercloud/testhelper/client"
 )
@@ -33,5 +34,29 @@
 		RestorePoint: "1234567890",
 	}
 
-	_ = Create(fake.ServiceClient(), opts)
+	instance, err := Create(fake.ServiceClient(), opts).Extract()
+
+	expected := &Instance{
+		Created:   "2014-02-13T21:47:13",
+		Updated:   "2014-02-13T21:47:13",
+		Datastore: Datastore{Type: "mysql", Version: "5.6"},
+		Flavor: Flavor{
+			ID: "1",
+			Links: []gophercloud.Link{
+				gophercloud.Link{Href: "https://ord.databases.api.rackspacecloud.com/v1.0/1234/flavors/1", Rel: "self"},
+				gophercloud.Link{Href: "https://ord.databases.api.rackspacecloud.com/v1.0/1234/flavors/1", Rel: "bookmark"},
+			},
+		},
+		Hostname: "e09ad9a3f73309469cf1f43d11e79549caf9acf2.rackspaceclouddb.com",
+		ID:       "d4603f69-ec7e-4e9b-803f-600b9205576f",
+		Links: []gophercloud.Link{
+			gophercloud.Link{Href: "https://ord.databases.api.rackspacecloud.com/v1.0/1234/flavors/1", Rel: "self"},
+		},
+		Name:   "json_rack_instance",
+		Status: "BUILD",
+		Volume: Volume{Size: 2},
+	}
+
+	th.AssertNoErr(t, err)
+	th.AssertDeepEquals(t, expected, instance)
 }