diff --git a/testsuite b/testsuite
new file mode 100755
index 0000000000000000000000000000000000000000..e5dc3f8cd4c4beaa2dc2f94ef178b63a21974466
--- /dev/null
+++ b/testsuite
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# test suite for hddemux
+
+# this is just a stub.
+
+# hddemux with no arguments and no listening file descriptors should fail:
+if [ ./hddemux ]; then
+    false
+fi
+
+# should probably try to actually test it!
+
+true