move unit tests into 'testing' directories
diff --git a/openstack/db/v1/instances/testing/doc.go b/openstack/db/v1/instances/testing/doc.go
new file mode 100644
index 0000000..7603f83
--- /dev/null
+++ b/openstack/db/v1/instances/testing/doc.go
@@ -0,0 +1 @@
+package testing
diff --git a/openstack/db/v1/instances/testing/fixtures.go b/openstack/db/v1/instances/testing/fixtures.go
new file mode 100644
index 0000000..e0a0d28
--- /dev/null
+++ b/openstack/db/v1/instances/testing/fixtures.go
@@ -0,0 +1,170 @@
+package testing
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/openstack/db/v1/datastores"
+	"github.com/gophercloud/gophercloud/openstack/db/v1/flavors"
+	"github.com/gophercloud/gophercloud/openstack/db/v1/instances"
+	"github.com/gophercloud/gophercloud/testhelper/fixture"
+)
+
+var (
+	timestamp  = "2015-11-12T14:22:42Z"
+	timeVal, _ = time.Parse(time.RFC3339, timestamp)
+)
+
+var instance = `
+{
+  "created": "` + timestamp + `",
+  "datastore": {
+    "type": "mysql",
+    "version": "5.6"
+  },
+  "flavor": {
+    "id": 1,
+    "links": [
+      {
+        "href": "https://my-openstack.com/v1.0/1234/flavors/1",
+        "rel": "self"
+      },
+      {
+        "href": "https://my-openstack.com/v1.0/1234/flavors/1",
+        "rel": "bookmark"
+      }
+    ]
+  },
+  "links": [
+    {
+      "href": "https://my-openstack.com/v1.0/1234/instances/1",
+      "rel": "self"
+    }
+  ],
+  "hostname": "e09ad9a3f73309469cf1f43d11e79549caf9acf2.my-openstack.com",
+  "id": "{instanceID}",
+  "name": "json_rack_instance",
+  "status": "BUILD",
+  "updated": "` + timestamp + `",
+  "volume": {
+    "size": 2
+  }
+}
+`
+
+var createReq = `
+{
+	"instance": {
+		"databases": [
+			{
+				"character_set": "utf8",
+				"collate": "utf8_general_ci",
+				"name": "sampledb"
+			},
+			{
+				"name": "nextround"
+			}
+		],
+		"flavorRef": "1",
+		"name": "json_rack_instance",
+		"users": [
+			{
+				"databases": [
+					{
+						"name": "sampledb"
+					}
+				],
+				"name": "demouser",
+				"password": "demopassword"
+			}
+		],
+		"volume": {
+			"size": 2
+		}
+	}
+}
+`
+
+var (
+	instanceID = "{instanceID}"
+	rootURL    = "/instances"
+	resURL     = rootURL + "/" + instanceID
+	uRootURL   = resURL + "/root"
+	aURL       = resURL + "/action"
+)
+
+var (
+	restartReq   = `{"restart": {}}`
+	resizeReq    = `{"resize": {"flavorRef": "2"}}`
+	resizeVolReq = `{"resize": {"volume": {"size": 4}}}`
+)
+
+var (
+	createResp        = fmt.Sprintf(`{"instance": %s}`, instance)
+	listInstancesResp = fmt.Sprintf(`{"instances":[%s]}`, instance)
+	getInstanceResp   = createResp
+	enableUserResp    = `{"user":{"name":"root","password":"secretsecret"}}`
+	isUserEnabledResp = `{"rootEnabled":true}`
+)
+
+var expectedInstance = instances.Instance{
+	Created: timeVal,
+	Updated: timeVal,
+	Flavor: flavors.Flavor{
+		ID: 1,
+		Links: []gophercloud.Link{
+			{Href: "https://my-openstack.com/v1.0/1234/flavors/1", Rel: "self"},
+			{Href: "https://my-openstack.com/v1.0/1234/flavors/1", Rel: "bookmark"},
+		},
+	},
+	Hostname: "e09ad9a3f73309469cf1f43d11e79549caf9acf2.my-openstack.com",
+	ID:       instanceID,
+	Links: []gophercloud.Link{
+		{Href: "https://my-openstack.com/v1.0/1234/instances/1", Rel: "self"},
+	},
+	Name:   "json_rack_instance",
+	Status: "BUILD",
+	Volume: instances.Volume{Size: 2},
+	Datastore: datastores.DatastorePartial{
+		Type:    "mysql",
+		Version: "5.6",
+	},
+}
+
+func HandleCreate(t *testing.T) {
+	fixture.SetupHandler(t, rootURL, "POST", createReq, createResp, 200)
+}
+
+func HandleList(t *testing.T) {
+	fixture.SetupHandler(t, rootURL, "GET", "", listInstancesResp, 200)
+}
+
+func HandleGet(t *testing.T) {
+	fixture.SetupHandler(t, resURL, "GET", "", getInstanceResp, 200)
+}
+
+func HandleDelete(t *testing.T) {
+	fixture.SetupHandler(t, resURL, "DELETE", "", "", 202)
+}
+
+func HandleEnableRoot(t *testing.T) {
+	fixture.SetupHandler(t, uRootURL, "POST", "", enableUserResp, 200)
+}
+
+func HandleIsRootEnabled(t *testing.T) {
+	fixture.SetupHandler(t, uRootURL, "GET", "", isUserEnabledResp, 200)
+}
+
+func HandleRestart(t *testing.T) {
+	fixture.SetupHandler(t, aURL, "POST", restartReq, "", 202)
+}
+
+func HandleResize(t *testing.T) {
+	fixture.SetupHandler(t, aURL, "POST", resizeReq, "", 202)
+}
+
+func HandleResizeVol(t *testing.T) {
+	fixture.SetupHandler(t, aURL, "POST", resizeVolReq, "", 202)
+}
diff --git a/openstack/db/v1/instances/testing/requests_test.go b/openstack/db/v1/instances/testing/requests_test.go
new file mode 100644
index 0000000..e3c81e3
--- /dev/null
+++ b/openstack/db/v1/instances/testing/requests_test.go
@@ -0,0 +1,134 @@
+package testing
+
+import (
+	"testing"
+
+	db "github.com/gophercloud/gophercloud/openstack/db/v1/databases"
+	"github.com/gophercloud/gophercloud/openstack/db/v1/instances"
+	"github.com/gophercloud/gophercloud/openstack/db/v1/users"
+	"github.com/gophercloud/gophercloud/pagination"
+	th "github.com/gophercloud/gophercloud/testhelper"
+	fake "github.com/gophercloud/gophercloud/testhelper/client"
+)
+
+func TestCreate(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleCreate(t)
+
+	opts := instances.CreateOpts{
+		Name:      "json_rack_instance",
+		FlavorRef: "1",
+		Databases: db.BatchCreateOpts{
+			{CharSet: "utf8", Collate: "utf8_general_ci", Name: "sampledb"},
+			{Name: "nextround"},
+		},
+		Users: users.BatchCreateOpts{
+			{
+				Name:     "demouser",
+				Password: "demopassword",
+				Databases: db.BatchCreateOpts{
+					{Name: "sampledb"},
+				},
+			},
+		},
+		Size: 2,
+	}
+
+	instance, err := instances.Create(fake.ServiceClient(), opts).Extract()
+
+	th.AssertNoErr(t, err)
+	th.AssertDeepEquals(t, &expectedInstance, instance)
+}
+
+func TestInstanceList(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleList(t)
+
+	pages := 0
+	err := instances.List(fake.ServiceClient()).EachPage(func(page pagination.Page) (bool, error) {
+		pages++
+
+		actual, err := instances.ExtractInstances(page)
+		if err != nil {
+			return false, err
+		}
+
+		th.CheckDeepEquals(t, []instances.Instance{expectedInstance}, actual)
+		return true, nil
+	})
+
+	th.AssertNoErr(t, err)
+	th.AssertEquals(t, 1, pages)
+}
+
+func TestGetInstance(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleGet(t)
+
+	instance, err := instances.Get(fake.ServiceClient(), instanceID).Extract()
+
+	th.AssertNoErr(t, err)
+	th.AssertDeepEquals(t, &expectedInstance, instance)
+}
+
+func TestDeleteInstance(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleDelete(t)
+
+	res := instances.Delete(fake.ServiceClient(), instanceID)
+	th.AssertNoErr(t, res.Err)
+}
+
+func TestEnableRootUser(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleEnableRoot(t)
+
+	expected := &users.User{Name: "root", Password: "secretsecret"}
+	user, err := instances.EnableRootUser(fake.ServiceClient(), instanceID).Extract()
+
+	th.AssertNoErr(t, err)
+	th.AssertDeepEquals(t, expected, user)
+}
+
+func TestIsRootEnabled(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleIsRootEnabled(t)
+
+	isEnabled, err := instances.IsRootEnabled(fake.ServiceClient(), instanceID).Extract()
+
+	th.AssertNoErr(t, err)
+	th.AssertEquals(t, true, isEnabled)
+}
+
+func TestRestart(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleRestart(t)
+
+	res := instances.Restart(fake.ServiceClient(), instanceID)
+	th.AssertNoErr(t, res.Err)
+}
+
+func TestResize(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleResize(t)
+
+	res := instances.Resize(fake.ServiceClient(), instanceID, "2")
+	th.AssertNoErr(t, res.Err)
+}
+
+func TestResizeVolume(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	HandleResizeVol(t)
+
+	res := instances.ResizeVolume(fake.ServiceClient(), instanceID, 4)
+	th.AssertNoErr(t, res.Err)
+}