diff --git a/testing/service_client_test.go b/testing/service_client_test.go
new file mode 100644
index 0000000..904b303
--- /dev/null
+++ b/testing/service_client_test.go
@@ -0,0 +1,15 @@
+package testing
+
+import (
+	"testing"
+
+	"github.com/gophercloud/gophercloud"
+	th "github.com/gophercloud/gophercloud/testhelper"
+)
+
+func TestServiceURL(t *testing.T) {
+	c := &gophercloud.ServiceClient{Endpoint: "http://123.45.67.8/"}
+	expected := "http://123.45.67.8/more/parts/here"
+	actual := c.ServiceURL("more", "parts", "here")
+	th.CheckEquals(t, expected, actual)
+}