unikernel/duniverse/dune_/test/blackbox-tests/test-cases/target-outside-dir.t

@@ -0,0 +1,37 @@
+Generate rules in sub directories. There's two ways targets are specified:
+
+* Inferred from the action
+* Specified by the user
+
+The restriction on generating targets should be the same on both.
+
+  $ cat >dune-project <<EOF
+  > (lang dune 3.2)
+  > EOF
+
+  $ cat >dune <<EOF
+  > (rule
+  >  (with-stdout-to foo/bar.ml (echo "let foo = 42;;")))
+  > EOF
+
+  $ dune build foo/bar.ml
+  File "dune", line 2, characters 17-27:
+  2 |  (with-stdout-to foo/bar.ml (echo "let foo = 42;;")))
+                       ^^^^^^^^^^
+  Error: This action has targets in a different directory than the current one,
+  this is not allowed by dune at the moment:
+  - foo/bar.ml
+  [1]
+
+  $ cat >dune <<EOF
+  > (rule
+  >  (targets foo/bar.ml)
+  >  (action (with-stdout-to foo/bar.ml (echo "let foo = 42;;"))))
+  > EOF
+
+  $ dune build foo/bar.ml
+  File "dune", line 2, characters 10-20:
+  2 |  (targets foo/bar.ml)
+                ^^^^^^^^^^
+  Error: "foo/bar.ml" does not denote a file in the current directory.
+  [1]