rackspace create stack op and unit test
diff --git a/rackspace/orchestration/v1/stacks/fixtures.go b/rackspace/orchestration/v1/stacks/fixtures.go
new file mode 100644
index 0000000..c23f726
--- /dev/null
+++ b/rackspace/orchestration/v1/stacks/fixtures.go
@@ -0,0 +1,32 @@
+package stacks
+
+import (
+	"github.com/rackspace/gophercloud"
+	os "github.com/rackspace/gophercloud/openstack/orchestration/v1/stacks"
+)
+
+// CreateExpected represents the expected object from a Create request.
+var CreateExpected = &os.CreatedStack{
+	ID: "b663e18a-4767-4cdf-9db5-9c8cc13cc38a",
+	Links: []gophercloud.Link{
+		gophercloud.Link{
+			Href: "https://ord.orchestration.api.rackspacecloud.com/v1/864477/stacks/stackadopted/b663e18a-4767-4cdf-9db5-9c8cc13cc38a",
+			Rel:  "self",
+		},
+	},
+}
+
+// CreateOutput represents the response body from a Create request.
+const CreateOutput = `
+{
+  "stack": {
+    "id": "b663e18a-4767-4cdf-9db5-9c8cc13cc38a",
+    "links": [
+    {
+      "href": "https://ord.orchestration.api.rackspacecloud.com/v1/864477/stacks/stackadopted/b663e18a-4767-4cdf-9db5-9c8cc13cc38a",
+      "rel": "self"
+    }
+    ]
+  }
+}
+`