diff --git a/test/jbuild b/test/jbuild
index e41ab086..9e357692 100644
--- a/test/jbuild
+++ b/test/jbuild
@@ -1,48 +1,10 @@
-(rule
- ((targets (stdout stderr))
-  (action  (with-stdout-to stdout
-            (with-stderr-to stderr
-             (progn
-              (system "echo toto")
-              (system "echo titi >&2")))))))
-
-(rule
- ((targets (both))
-  (action  (with-outputs-to both
-            (progn
-             (system "echo toto")
-             (system "echo titi >&2"))))))
-
-(rule
- ((targets (stdout.expected))
-  (action  (with-stdout-to ${@} (echo "toto\n")))))
-
-(rule
- ((targets (stderr.expected))
-  (action  (with-stdout-to ${@} (echo "titi\n")))))
-
-(rule
- ((targets (both.expected))
-  (action  (with-stdout-to ${@} (echo "toto\ntiti\n")))))
+(executables
+ ((names (run))
+  (libraries (unix))))
 
 (alias
  ((name runtest)
-  (deps (stdout stdout.expected))
-  (action (run diff -u stdout.expected stdout))))
-
-(alias
- ((name runtest)
-  (deps (stderr stderr.expected))
-  (action (run diff -u stderr.expected stderr))))
-
-(alias
- ((name runtest)
-  (deps (both both.expected))
-  (action (run diff -u both.expected both))))
-
-(alias
- ((name runtest)
-  (action (ignore-stdout (echo "\
-==========================
-If you see this, something is wrong
-")))))
+  (deps ((files_recursively_in workspaces/redirections)))
+  (action
+   (chdir workspaces/redirections
+    (run ${exe:run.exe} ${bin:jbuilder} runtest --root .)))))
diff --git a/test/jbuild-ignore b/test/jbuild-ignore
new file mode 100644
index 00000000..343194f0
--- /dev/null
+++ b/test/jbuild-ignore
@@ -0,0 +1 @@
+workspaces
diff --git a/test/run.ml b/test/run.ml
new file mode 100644
index 00000000..07c656fa
--- /dev/null
+++ b/test/run.ml
@@ -0,0 +1,14 @@
+let () =
+  let args = Array.sub Sys.argv 1 (Array.length Sys.argv - 1) in
+  let log = Unix.openfile "log" [O_WRONLY; O_CREAT; O_TRUNC] 0o666 in
+  let pid = Unix.create_process args.(0) args Unix.stdin log log in
+  Unix.close log;
+  match snd (Unix.waitpid [] pid) with
+  | WEXITED 0 -> ()
+  | st ->
+    Printf.eprintf "Command failed, log saved in %s/log\n%!"
+      (Sys.getcwd ());
+    exit (match st with
+      | WEXITED   n -> n
+      | WSIGNALED n -> 128 + n
+      | WSTOPPED  _ -> assert false)
diff --git a/test/workspaces/redirections/jbuild b/test/workspaces/redirections/jbuild
new file mode 100644
index 00000000..e41ab086
--- /dev/null
+++ b/test/workspaces/redirections/jbuild
@@ -0,0 +1,48 @@
+(rule
+ ((targets (stdout stderr))
+  (action  (with-stdout-to stdout
+            (with-stderr-to stderr
+             (progn
+              (system "echo toto")
+              (system "echo titi >&2")))))))
+
+(rule
+ ((targets (both))
+  (action  (with-outputs-to both
+            (progn
+             (system "echo toto")
+             (system "echo titi >&2"))))))
+
+(rule
+ ((targets (stdout.expected))
+  (action  (with-stdout-to ${@} (echo "toto\n")))))
+
+(rule
+ ((targets (stderr.expected))
+  (action  (with-stdout-to ${@} (echo "titi\n")))))
+
+(rule
+ ((targets (both.expected))
+  (action  (with-stdout-to ${@} (echo "toto\ntiti\n")))))
+
+(alias
+ ((name runtest)
+  (deps (stdout stdout.expected))
+  (action (run diff -u stdout.expected stdout))))
+
+(alias
+ ((name runtest)
+  (deps (stderr stderr.expected))
+  (action (run diff -u stderr.expected stderr))))
+
+(alias
+ ((name runtest)
+  (deps (both both.expected))
+  (action (run diff -u both.expected both))))
+
+(alias
+ ((name runtest)
+  (action (ignore-stdout (echo "\
+==========================
+If you see this, something is wrong
+")))))