diff --git a/test/mbox.h b/test/mbox.h
new file mode 100644
index 0000000..0eef28c
--- /dev/null
+++ b/test/mbox.h
@@ -0,0 +1,49 @@
+/*
+ * MBox Daemon Test File
+ *
+ * Copyright 2017 IBM
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef TEST_MBOX_H
+#define TEST_MBOX_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "../common.h"
+#include "../mbox.h"
+
+#include "tmpf.h"
+
+struct mbox_context *mbox_create_test_context(int n_windows, size_t len);
+
+int mbox_set_mtd_data(struct mbox_context *context, const void *data,
+		size_t len);
+
+void mbox_dump(struct mbox_context *context);
+
+int mbox_cmp(struct mbox_context *context, const uint8_t *expected, size_t len);
+
+int mbox_command_write(struct mbox_context *context, const uint8_t *command,
+		size_t len);
+
+int mbox_command_dispatch(struct mbox_context *context, const uint8_t *command,
+	size_t len);
+
+/* Helpers */
+void dump_buf(const uint8_t *buf, size_t len);
+
+#endif /* TEST_MBOX_H */