http: make TestServer public

http/testing.go

@@ -0,0 +1,25 @@
+package http
+
+import (
+	"net"
+	"net/http"
+	"testing"
+
+	"github.com/hashicorp/vault/vault"
+)
+
+func TestServer(t *testing.T, core *vault.Core) (net.Listener, string) {
+	ln, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+	addr := "http://" + ln.Addr().String()
+
+	server := &http.Server{
+		Addr:    ln.Addr().String(),
+		Handler: Handler(core),
+	}
+	go server.Serve(ln)
+
+	return ln, addr
+}