[WIP] Add Rackspace Auto Scale support

rackspace/autoscale/v1/groups/fixtures.go

@@ -0,0 +1,234 @@
+// +build fixtures
+
+package groups
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	th "github.com/rackspace/gophercloud/testhelper"
+	"github.com/rackspace/gophercloud/testhelper/client"
+)
+
+// GroupListBody contains the canned body of a groups.List response.
+const GroupListBody = `
+{
+  "groups_links": [],
+  "groups": [
+    {
+      "state": {
+        "status": "ACTIVE",
+        "desiredCapacity": 2,
+        "paused": false,
+        "active": [
+          {
+            "id": "449cead0-48b2-44fe-9107-dea7cdb6d925",
+            "links": [
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/449cead0-48b2-44fe-9107-dea7cdb6d925",
+                "rel": "self"
+              },
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/123456/servers/449cead0-48b2-44fe-9107-dea7cdb6d925",
+                "rel": "bookmark"
+              }
+            ]
+          },
+          {
+            "id": "d8c2696f-1936-45c7-892d-f5f741ef0f60",
+            "links": [
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/d8c2696f-1936-45c7-892d-f5f741ef0f60",
+                "rel": "self"
+              },
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/123456/servers/d8c2696f-1936-45c7-892d-f5f741ef0f60",
+                "rel": "bookmark"
+              }
+            ]
+          }
+        ],
+        "pendingCapacity": 0,
+        "activeCapacity": 2,
+        "name": "first-group"
+      },
+      "id": "10eb3219-1b12-4b34-b1e4-e10ee4f24c65",
+      "links": [
+        {
+          "href": "https://dfw.autoscale.api.rackspacecloud.com/v1.0/123456/groups/10eb3219-1b12-4b34-b1e4-e10ee4f24c65/",
+          "rel": "self"
+        }
+      ]
+    },
+    {
+      "state": {
+        "status": "ACTIVE",
+        "desiredCapacity": 3,
+        "paused": false,
+        "active": [
+          {
+            "id": "6cca7222-8ab5-4361-ac2c-d35eb0b78ab4",
+            "links": [
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/6cca7222-8ab5-4361-ac2c-d35eb0b78ab4",
+                "rel": "self"
+              },
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/123456/servers/6cca7222-8ab5-4361-ac2c-d35eb0b78ab4",
+                "rel": "bookmark"
+              }
+            ]
+          },
+          {
+            "id": "44764e46-9ab2-48ce-8512-f7691e0cd9d2",
+            "links": [
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/44764e46-9ab2-48ce-8512-f7691e0cd9d2",
+                "rel": "self"
+              },
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/123456/servers/44764e46-9ab2-48ce-8512-f7691e0cd9d2",
+                "rel": "bookmark"
+              }
+            ]
+          },
+          {
+            "id": "11a31131-9233-4dac-bcab-15ef06f6b939",
+            "links": [
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/11a31131-9233-4dac-bcab-15ef06f6b939",
+                "rel": "self"
+              },
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/123456/servers/11a31131-9233-4dac-bcab-15ef06f6b939",
+                "rel": "bookmark"
+              }
+            ]
+          }
+        ],
+        "pendingCapacity": 0,
+        "activeCapacity": 3,
+        "name": "second-group"
+      },
+      "id": "e21c7d72-2faa-475a-a35c-8c51d9c66e01",
+      "links": [
+        {
+          "href": "https://dfw.autoscale.api.rackspacecloud.com/v1.0/123456/groups/e21c7d72-2faa-475a-a35c-8c51d9c66e01/",
+          "rel": "self"
+        }
+      ]
+    },
+    {
+      "state": {
+        "status": "ACTIVE",
+        "desiredCapacity": 2,
+        "paused": false,
+        "active": [
+          {
+            "id": "f4ff054b-b78c-4123-98f4-7f0e343c64cd",
+            "links": [
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/f4ff054b-b78c-4123-98f4-7f0e343c64cd",
+                "rel": "self"
+              },
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/123456/servers/f4ff054b-b78c-4123-98f4-7f0e343c64cd",
+                "rel": "bookmark"
+              }
+            ]
+          },
+          {
+            "id": "c89cfdbf-e3fa-419b-844c-70c3e8016268",
+            "links": [
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/c89cfdbf-e3fa-419b-844c-70c3e8016268",
+                "rel": "self"
+              },
+              {
+                "href": "https://dfw.servers.api.rackspacecloud.com/123456/servers/c89cfdbf-e3fa-419b-844c-70c3e8016268",
+                "rel": "bookmark"
+              }
+            ]
+          }
+        ],
+        "pendingCapacity": 0,
+        "activeCapacity": 2,
+        "name": "third-group"
+      },
+      "id": "e34fa1e9-d0f4-47c1-9a01-e531204e1f25",
+      "links": [
+        {
+          "href": "https://dfw.autoscale.api.rackspacecloud.com/v1.0/123456/groups/e34fa1e9-d0f4-47c1-9a01-e531204e1f25/",
+          "rel": "self"
+        }
+      ]
+    }
+  ]
+}
+`
+
+var (
+	// FirstGroup is a Group struct corresponding to the first result in GroupListBody.
+	FirstGroup = Group{
+		ID: "10eb3219-1b12-4b34-b1e4-e10ee4f24c65",
+		State: State{
+			Name:            "first-group",
+			Status:          ACTIVE,
+			DesiredCapacity: 2,
+			PendingCapacity: 0,
+			ActiveCapacity:  2,
+			Paused:          false,
+			Active: []map[string]interface{}{
+				{
+					"id": "449cead0-48b2-44fe-9107-dea7cdb6d925",
+					"links": []map[string]string{
+						{
+							"href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/449cead0-48b2-44fe-9107-dea7cdb6d925",
+							"rel":  "self",
+						},
+						{
+							"href": "https://dfw.servers.api.rackspacecloud.com/123456/servers/449cead0-48b2-44fe-9107-dea7cdb6d925",
+							"rel":  "bookmark",
+						},
+					},
+				},
+				{
+					"id": "d8c2696f-1936-45c7-892d-f5f741ef0f60",
+					"links": []map[string]string{
+						{
+							"href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/d8c2696f-1936-45c7-892d-f5f741ef0f60",
+							"rel":  "self",
+						},
+						{
+							"href": "https://dfw.servers.api.rackspacecloud.com/v2/123456/servers/d8c2696f-1936-45c7-892d-f5f741ef0f60",
+							"rel":  "bookmark",
+						},
+					},
+				},
+			},
+		},
+	}
+)
+
+// HandleGroupListSuccessfully sets up the test server to respond to a group List request.
+func HandleGroupListSuccessfully(t *testing.T) {
+	th.Mux.HandleFunc("/groups", 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")
+
+		r.ParseForm()
+		marker := r.Form.Get("marker")
+
+		switch marker {
+		case "":
+			fmt.Fprintf(w, GroupListBody)
+		case "e34fa1e9-d0f4-47c1-9a01-e531204e1f25":
+			fmt.Fprintf(w, `{ "servers": [] }`)
+		default:
+			t.Fatalf("/groups invoked with unexpected marker=[%s]", marker)
+		}
+	})
+}

rackspace/autoscale/v1/groups/requests.go

@@ -0,0 +1,54 @@
+package groups
+
+import (
+	"github.com/rackspace/gophercloud"
+	"github.com/rackspace/gophercloud/pagination"
+)
+
+// ListOptsBuilder allows extensions to add additional parameters to the
+// List request.
+type ListOptsBuilder interface {
+	ToGroupListQuery() (string, error)
+}
+
+// ListOpts allows the filtering and sorting of paginated collections through
+// the API.
+type ListOpts struct {
+	// UUID of the group at which you want to set a marker.
+	Marker string `q:"marker"`
+
+	// Integer value for the limit of values to return.
+	Limit int `q:"limit"`
+}
+
+// ToGroupListQuery formats a ListOpts into a query string.
+func (opts ListOpts) ToGroupListQuery() (string, error) {
+	q, err := gophercloud.BuildQueryString(opts)
+
+	if err != nil {
+		return "", err
+	}
+
+	return q.String(), nil
+}
+
+// List returns all scaling groups.
+func List(client *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
+	url := groupsURL(client)
+
+	if opts != nil {
+		query, err := opts.ToGroupListQuery()
+
+		if err != nil {
+			return pagination.Pager{Err: err}
+		}
+
+		url += query
+	}
+
+	createPageFn := func(r pagination.PageResult) pagination.Page {
+		return GroupPage{pagination.LinkedPageBase{PageResult: r}}
+	}
+
+	return pagination.NewPager(client, url, createPageFn)
+}

rackspace/autoscale/v1/groups/requests_test.go

@@ -0,0 +1,40 @@
+package groups
+
+import (
+	"testing"
+
+	"github.com/rackspace/gophercloud/pagination"
+	th "github.com/rackspace/gophercloud/testhelper"
+	"github.com/rackspace/gophercloud/testhelper/client"
+)
+
+func TestList(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleGroupListSuccessfully(t)
+
+	pages := 0
+	err := List(client.ServiceClient(), ListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
+		pages++
+
+		groups, err := ExtractGroups(page)
+
+		if err != nil {
+			return false, err
+		}
+
+		if len(groups) != 3 {
+			t.Fatalf("Expected 3 groups, got %d", len(groups))
+		}
+
+		th.CheckDeepEquals(t, FirstGroup, groups[0])
+
+		return true, nil
+	})
+
+	th.AssertNoErr(t, err)
+
+	if pages != 1 {
+		t.Errorf("Expected 1 page, saw %d", pages)
+	}
+}