diff --git a/buffet/commands/unittest_utils.h b/buffet/commands/unittest_utils.h
new file mode 100644
index 0000000..e14e4d1
--- /dev/null
+++ b/buffet/commands/unittest_utils.h
@@ -0,0 +1,31 @@
+// 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.
+
+#ifndef BUFFET_COMMANDS_UNITTEST_UTILS_H_
+#define BUFFET_COMMANDS_UNITTEST_UTILS_H_
+
+#include <memory>
+#include <string>
+
+#include <base/values.h>
+
+namespace buffet {
+namespace unittests {
+
+// Helper method to create base::Value from a string as a smart pointer.
+// For ease of definition in C++ code, double-quotes in the source definition
+// are replaced with apostrophes.
+  std::unique_ptr<base::Value> CreateValue(const char* json);
+
+// Helper method to create a JSON dictionary object from a string.
+std::unique_ptr<base::DictionaryValue> CreateDictionaryValue(const char* json);
+
+// Converts a JSON value to a string. It also converts double-quotes to
+// apostrophes for easy comparisons in C++ source code.
+std::string ValueToString(const base::Value* value);
+
+}  // namespace unittests
+}  // namespace buffet
+
+#endif  // BUFFET_COMMANDS_UNITTEST_UTILS_H_