diff --git a/tests/test-requires b/tests/test-requires
new file mode 100755
--- /dev/null
+++ b/tests/test-requires
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+mkdir t
+cd t
+hg init
+echo a > a
+hg add a
+hg commit -m test -d "1000000 0"
+rm .hg/requires
+hg tip
+echo indoor-pool > .hg/requires
+hg tip
+
+true