Convert identity acceptance tests to go test form
diff --git a/acceptance/openstack/identity_test.go b/acceptance/openstack/identity_test.go
new file mode 100644
index 0000000..edb24ab
--- /dev/null
+++ b/acceptance/openstack/identity_test.go
@@ -0,0 +1,109 @@
+package openstack
+
+import (
+	"testing"
+	"fmt"
+	"os"
+	"github.com/rackspace/gophercloud/openstack/identity"
+	"github.com/rackspace/gophercloud/openstack/utils"
+	"text/tabwriter"
+)
+
+type extractor func(*identity.Token) string
+
+func TestAuthentication(t *testing.T) {
+	// Create an initialized set of authentication options based on available OS_*
+	// environment variables.
+	ao, err := utils.AuthOptions()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	// Attempt to authenticate with them.
+	r, err := identity.Authenticate(ao)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	// We're authenticated; now let's grab our authentication token.
+	tok, err := identity.GetToken(r)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	// Authentication tokens have a variety of fields which might be of some interest.
+	// Let's print a few of them out.
+	table := map[string]extractor{
+		"ID":      func(t *identity.Token) string { return tok.Id },
+		"Expires": func(t *identity.Token) string { return tok.Expires },
+	}
+
+	for attr, fn := range table {
+		fmt.Printf("Your token's %s is %s\n", attr, fn(tok))
+	}
+
+	// With each authentication, you receive a master directory of all the services
+	// your account can access.  This "service catalog", as OpenStack calls it,
+	// provides you the means to exploit other OpenStack services.
+	sc, err := identity.GetServiceCatalog(r)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	// Prepare our elastic tabstopped writer for our table.
+	w := new(tabwriter.Writer)
+	w.Init(os.Stdout, 2, 8, 2, ' ', 0)
+
+	// Different providers will provide different services.  Let's print them
+	// in summary.
+	ces, err := sc.CatalogEntries()
+	fmt.Println("Service Catalog Summary:")
+	fmt.Fprintln(w, "Name\tType\t")
+	for _, ce := range ces {
+		fmt.Fprintf(w, "%s\t%s\t\n", ce.Name, ce.Type)
+	}
+	w.Flush()
+
+	// Now let's print them in greater detail.
+	for _, ce := range ces {
+		fmt.Printf("Endpoints for %s/%s\n", ce.Name, ce.Type)
+		fmt.Fprintln(w, "Version\tRegion\tTenant\tPublic URL\tInternal URL\t")
+		for _, ep := range ce.Endpoints {
+			fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t\n", ep.VersionId, ep.Region, ep.TenantId, ep.PublicURL, ep.InternalURL)
+		}
+		w.Flush()
+	}
+}
+
+func TestExtensions(t *testing.T) {
+	// Create an initialized set of authentication options based on available OS_*
+	// environment variables.
+	ao, err := utils.AuthOptions()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	// Attempt to query extensions.
+	exts, err := identity.GetExtensions(ao)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	// Print out a summary of supported extensions
+	aliases, err := exts.Aliases()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	fmt.Println("Extension Aliases:")
+	for _, alias := range aliases {
+		fmt.Printf("  %s\n", alias)
+	}
+}
+