unikernel/duniverse/dune_/test/blackbox-tests/test-cases/env/env-affects-expander-affects-env.t

@@ -0,0 +1,27 @@
+Current directory (and also current env) can affect an expander,
+and expander is in turn used to expand things in env.
+
+Given that we only have a few string_with_vars in env, a reasonable
+example is hard to come up with, but here is a contrived one.
+
+  $ echo '(lang dune 2.0)' > dune-project
+  $ cat > dune <<EOF
+  > (env
+  >  (_
+  >   (ocamlc_flags "%{inline_tests}")))
+  > EOF
+
+  $ dune printenv --root . . --field ocamlc_flags
+  (ocamlc_flags (enabled))
+
+
+  $ echo '(lang dune 2.0)' > dune-project
+  $ cat > dune <<EOF
+  > (env
+  >  (_
+  >   (ocamlc_flags "%{inline_tests}")
+  >   (inline_tests ignored)))
+  > EOF
+
+  $ dune printenv --root . . --field ocamlc_flags
+  (ocamlc_flags (ignored))