diff --git a/test/system.h b/test/system.h
new file mode 100644
index 0000000..a489e51
--- /dev/null
+++ b/test/system.h
@@ -0,0 +1,28 @@
+/*
+ * 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_SYSTEM_H
+#define TEST_SYSTEM_H
+
+#include <stdint.h>
+
+void system_set_reserved_size(uint32_t size);
+void system_set_mtd_sizes(uint32_t size, uint32_t erasesize);
+
+#endif /* TEST_SYSTEM_H */