diff --git a/test/test.h b/test/test.h
new file mode 100644
index 0000000..8ae4d3f
--- /dev/null
+++ b/test/test.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright The Transfer List Library Contributors
+ *
+ * SPDX-License-Identifier: MIT OR GPL-2.0-or-later
+ */
+
+#if !defined(TEST_H)
+#define TEST_H
+
+#define TL_MAX_SIZE 0x10000
+#define TL_SIZE 0x1000
+
+enum {
+	TAG_GENERIC_START = 0,
+	TAG_GENERIC_END = 0x7fffff,
+	TAG_NON_STANDARD_START = 0xfff000,
+	TAG_NON_STANDARD_END = 0xffffff,
+	TAG_OUT_OF_BOUND = (1 << 24),
+};
+
+const unsigned int test_tag = 1;
+int test_data = 0xdeadbeef;
+
+#endif /* TEST_H */