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

@@ -0,0 +1,19 @@
+  $ cat > dune-project <<EOF
+  > (lang dune 2.9)
+  > EOF
+
+  $ cat > dune <<EOF
+  > (rule
+  >   (targets a b)
+  >   (action (bash "echo content > a; chmod -r a; ln -s foo b")))
+  > EOF
+
+  $ dune build b
+  File "dune", lines 1-3, characters 0-84:
+  1 | (rule
+  2 |   (targets a b)
+  3 |   (action (bash "echo content > a; chmod -r a; ln -s foo b")))
+  Error: Error trying to read targets after a rule was run:
+  - a: Permission denied
+  - b: Broken symbolic link
+  [1]