diff --git a/test/dune b/test/dune
new file mode 100644
index 0000000..e2dce67
--- /dev/null
+++ b/test/dune
@@ -0,0 +1,13 @@
+(executable
+ (name sleep)
+ (modules sleep)
+ (modes native)
+ (link_flags :standard -cclib "-z solo5-abi=hvt")
+ (enabled_if (= %{context_name} "solo5"))
+ (libraries miou-solo5)
+ (foreign_stubs (language c) (names manifest)))
+
+(rule
+ (targets manifest.c)
+ (deps manifest.json)
+ (action (run solo5-elftool gen-manifest manifest.json manifest.c)))
diff --git a/test/manifest.json b/test/manifest.json
new file mode 100644
index 0000000..836f1a5
--- /dev/null
+++ b/test/manifest.json
@@ -0,0 +1,5 @@
+{
+  "type": "solo5.manifest",
+  "version": 1,
+  "devices": []
+}
diff --git a/test/sleep.ml b/test/sleep.ml
new file mode 100644
index 0000000..f50eabd
--- /dev/null
+++ b/test/sleep.ml
@@ -0,0 +1,23 @@
+let _1s = 1_000_000_000
+
+let sleep_and ns fn =
+  Miou_solo5.sleep ns;
+  fn ()
+
+let rec repeat_until n fn =
+  if n > 0 then begin
+    fn ();
+    repeat_until (n - 1) fn
+  end
+
+let () = Miou_solo5.run @@ fun () ->
+  let prm0 = Miou.async @@ fun () ->
+    repeat_until 3 @@ fun () ->
+    sleep_and _1s @@ fun () ->
+    print_endline "Hello" in
+  let prm1 = Miou.async @@ fun () ->
+    repeat_until 3 @@ fun () ->
+    sleep_and _1s @@ fun () ->
+    print_endline "World" in
+  let res = Miou.await_all [ prm0; prm1 ] in
+  List.iter (function Ok () -> () | Error exn -> raise exn) res