unikernel/duniverse/dune_/test/blackbox-tests/test-cases/package-rule.t/run.t

@@ -0,0 +1,21 @@
+When --only-packages is passed, it runs, as long as the version is new enough
+
+  $ dune build --only-packages a @runtest
+  File "dune", lines 10-12, characters 0-61:
+  10 | (rule
+  11 |   (package a)
+  12 |   (action (copy test_temp.ml test_b.ml)))
+  Error: 'package' in short-form 'rule' is only available since version 3.8 of
+  the dune language. Please update your dune-project file to have (lang dune
+  3.8).
+  [1]
+
+The version is too old, bump it to 3.8 where this was fixed:
+
+  $ cat > dune-project-3.8 <<EOF
+  > (lang dune 3.8)
+  > EOF
+  $ mv dune-project-3.8 dune-project
+  $ dune build --only-packages a @runtest
+  A
+  A