Rackspace Auto Scale: Add webhooks List()
diff --git a/rackspace/autoscale/v1/webhooks/fixtures.go b/rackspace/autoscale/v1/webhooks/fixtures.go
new file mode 100644
index 0000000..18f6b63
--- /dev/null
+++ b/rackspace/autoscale/v1/webhooks/fixtures.go
@@ -0,0 +1,106 @@
+// +build fixtures
+
+package webhooks
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/rackspace/gophercloud"
+	th "github.com/rackspace/gophercloud/testhelper"
+	"github.com/rackspace/gophercloud/testhelper/client"
+)
+
+// WebhookListBody contains the canned body of a webhooks.List response.
+const WebhookListBody = `
+{
+  "webhooks": [
+    {
+      "id": "2bd1822c-58c5-49fd-8b3d-ed44781a58d1",
+      "name": "first hook",
+      "links": [
+        {
+          "href": "https://dfw.autoscale.api.rackspacecloud.com/v1.0/123456/groups/60b15dad-5ea1-43fa-9a12-a1d737b4da07/policies/2b48d247-0282-4b9d-8775-5c4b67e8e649/webhooks/2bd1822c-58c5-49fd-8b3d-ed44781a58d1/",
+          "rel": "self"
+        },
+        {
+          "href": "https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/714c1c17c5e6ea5ef1e710d5ccc62e492575bab5216184d4c27dc0164db1bc06/",
+          "rel": "capability"
+        }
+      ],
+      "metadata": {}
+    },
+    {
+      "id": "76711c36-dfbe-4f5e-bea6-cded99690515",
+      "name": "second hook",
+      "links": [
+        {
+          "href": "https://dfw.autoscale.api.rackspacecloud.com/v1.0/123456/groups/60b15dad-5ea1-43fa-9a12-a1d737b4da07/policies/2b48d247-0282-4b9d-8775-5c4b67e8e649/webhooks/76711c36-dfbe-4f5e-bea6-cded99690515/",
+          "rel": "self"
+        },
+        {
+          "href": "https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/982e24858723f9e8bc2afea42a73a3c357c8f518857735400a7f7d8b3f14ccdb/",
+          "rel": "capability"
+        }
+      ],
+      "metadata": {
+        "notes": "a note about this webhook"
+      }
+    }
+  ],
+  "webhooks_links": []
+}
+`
+
+var (
+	// FirstWebhook is a Webhook corresponding to the first result in WebhookListBody.
+	FirstWebhook = Webhook{
+		ID:   "2bd1822c-58c5-49fd-8b3d-ed44781a58d1",
+		Name: "first hook",
+		Links: []gophercloud.Link{
+			{
+				Href: "https://dfw.autoscale.api.rackspacecloud.com/v1.0/123456/groups/60b15dad-5ea1-43fa-9a12-a1d737b4da07/policies/2b48d247-0282-4b9d-8775-5c4b67e8e649/webhooks/2bd1822c-58c5-49fd-8b3d-ed44781a58d1/",
+				Rel:  "self",
+			},
+			{
+				Href: "https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/714c1c17c5e6ea5ef1e710d5ccc62e492575bab5216184d4c27dc0164db1bc06/",
+				Rel:  "capability",
+			},
+		},
+		Metadata: map[string]string{},
+	}
+
+	// SecondWebhook is a Webhook corresponding to the second result in WebhookListBody.
+	SecondWebhook = Webhook{
+		ID:   "76711c36-dfbe-4f5e-bea6-cded99690515",
+		Name: "second hook",
+		Links: []gophercloud.Link{
+			{
+				Href: "https://dfw.autoscale.api.rackspacecloud.com/v1.0/123456/groups/60b15dad-5ea1-43fa-9a12-a1d737b4da07/policies/2b48d247-0282-4b9d-8775-5c4b67e8e649/webhooks/76711c36-dfbe-4f5e-bea6-cded99690515/",
+				Rel:  "self",
+			},
+			{
+				Href: "https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/982e24858723f9e8bc2afea42a73a3c357c8f518857735400a7f7d8b3f14ccdb/",
+				Rel:  "capability",
+			},
+		},
+		Metadata: map[string]string{
+			"notes": "a note about this webhook",
+		},
+	}
+)
+
+// HandleWebhookListSuccessfully sets up the test server to respond to a webhooks List request.
+func HandleWebhookListSuccessfully(t *testing.T) {
+	path := "/groups/10eb3219-1b12-4b34-b1e4-e10ee4f24c65/policies/2b48d247-0282-4b9d-8775-5c4b67e8e649/webhooks"
+
+	th.Mux.HandleFunc(path, func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "GET")
+		th.TestHeader(t, r, "X-Auth-Token", client.TokenID)
+
+		w.Header().Add("Content-Type", "application/json")
+
+		fmt.Fprintf(w, WebhookListBody)
+	})
+}