diff --git a/buffet/commands/command_definition_unittest.cc b/buffet/commands/command_definition_unittest.cc
new file mode 100644
index 0000000..76212af
--- /dev/null
+++ b/buffet/commands/command_definition_unittest.cc
@@ -0,0 +1,14 @@
+// Copyright 2014 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <gtest/gtest.h>
+
+#include "buffet/commands/command_definition.h"
+
+TEST(CommandDefinition, Test) {
+  auto params = std::make_shared<buffet::ObjectSchema>();
+  buffet::CommandDefinition def("powerd", params);
+  EXPECT_EQ("powerd", def.GetCategory());
+  EXPECT_EQ(params, def.GetParameters());
+}