unit tests; consistency with the other OpenStack services
diff --git a/openstack/blockstorage/v1/volumes/requests_test.go b/openstack/blockstorage/v1/volumes/requests_test.go
index bea59b2..2ae8dd3 100644
--- a/openstack/blockstorage/v1/volumes/requests_test.go
+++ b/openstack/blockstorage/v1/volumes/requests_test.go
@@ -1 +1,160 @@
 package volumes
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/rackspace/gophercloud"
+	"github.com/rackspace/gophercloud/pagination"
+	th "github.com/rackspace/gophercloud/testhelper"
+)
+
+const TokenID = "123"
+
+func ServiceClient() *gophercloud.ServiceClient {
+	return &gophercloud.ServiceClient{
+		Provider: &gophercloud.ProviderClient{
+			TokenID: TokenID,
+		},
+		Endpoint: th.Endpoint(),
+	}
+}
+
+func TestList(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	th.Mux.HandleFunc("/volumes", func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "GET")
+		th.TestHeader(t, r, "X-Auth-Token", TokenID)
+
+		w.Header().Add("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+
+		fmt.Fprintf(w, `
+		{
+			"volumes": [
+				{
+					"id": "289da7f8-6440-407c-9fb4-7db01ec49164",
+					"display_name": "vol-001"
+				},
+				{
+					"id": "96c3bda7-c82a-4f50-be73-ca7621794835",
+					"display_name": "vol-002"
+				}
+			]
+		}
+		`)
+	})
+
+	client := ServiceClient()
+	count := 0
+
+	List(client, &ListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
+		count++
+		actual, err := ExtractVolumes(page)
+		if err != nil {
+			t.Errorf("Failed to extract volumes: %v", err)
+			return false, err
+		}
+
+		expected := []Volume{
+			Volume{
+				ID:   "289da7f8-6440-407c-9fb4-7db01ec49164",
+				Name: "vol-001",
+			},
+			Volume{
+				ID:   "96c3bda7-c82a-4f50-be73-ca7621794835",
+				Name: "vol-002",
+			},
+		}
+
+		th.CheckDeepEquals(t, expected, actual)
+
+		return true, nil
+	})
+
+	if count != 1 {
+		t.Errorf("Expected 1 page, got %d", count)
+	}
+}
+
+func TestGet(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	th.Mux.HandleFunc("/volumes/d32019d3-bc6e-4319-9c1d-6722fc136a22", func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "GET")
+		th.TestHeader(t, r, "X-Auth-Token", TokenID)
+
+		w.Header().Add("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		fmt.Fprintf(w, `
+{
+    "volume": {
+        "display_name": "vol-001",
+        "id": "d32019d3-bc6e-4319-9c1d-6722fc136a22"
+    }
+}
+			`)
+	})
+
+	v, err := Get(ServiceClient(), "d32019d3-bc6e-4319-9c1d-6722fc136a22").Extract()
+	th.AssertNoErr(t, err)
+
+	th.AssertEquals(t, v.Name, "vol-001")
+	th.AssertEquals(t, v.ID, "d32019d3-bc6e-4319-9c1d-6722fc136a22")
+}
+
+func TestCreate(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	th.Mux.HandleFunc("/volumes", func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "POST")
+		th.TestHeader(t, r, "X-Auth-Token", TokenID)
+		th.TestHeader(t, r, "Content-Type", "application/json")
+		th.TestHeader(t, r, "Accept", "application/json")
+		th.TestJSONRequest(t, r, `
+{
+    "volume": {
+        "display_name": "vol-001"
+    }
+}
+			`)
+
+		w.Header().Add("Content-Type", "application/json")
+		w.WriteHeader(http.StatusCreated)
+
+		fmt.Fprintf(w, `
+{
+    "volume": {
+        "display_name": "vol-001",
+        "id": "d32019d3-bc6e-4319-9c1d-6722fc136a22"
+    }
+}
+		`)
+	})
+
+	options := &CreateOpts{Name: "vol-001"}
+	n, err := Create(ServiceClient(), options).Extract()
+	th.AssertNoErr(t, err)
+
+	th.AssertEquals(t, n.Name, "vol-001")
+	th.AssertEquals(t, n.ID, "d32019d3-bc6e-4319-9c1d-6722fc136a22")
+}
+
+func TestDelete(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	th.Mux.HandleFunc("/volumes/d32019d3-bc6e-4319-9c1d-6722fc136a22", func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "DELETE")
+		th.TestHeader(t, r, "X-Auth-Token", TokenID)
+		w.WriteHeader(http.StatusNoContent)
+	})
+
+	res := Delete(ServiceClient(), "d32019d3-bc6e-4319-9c1d-6722fc136a22")
+	th.AssertNoErr(t, res.Err)
+}