unikernel/duniverse/dune_/test/blackbox-tests/test-cases/utop/github3188.t

@@ -0,0 +1,15 @@
+This test makes sure that the utop subcommand does not load optional libraries.
+
+  $ mkdir testutop
+  $ cat <<EOF > testutop/dune
+  > (library
+  >  (name testutop)
+  >  (optional)
+  >  (libraries does_not_exist))
+  > EOF
+  $ echo 'let run () = print_endline "this will never run"' > testutop/testutop.ml
+  $ echo "(lang dune 2.0)" > dune-project
+  $ echo 'let () = print_endline "No Error"' > init_test.ml
+
+  $ dune utop testutop -- init_test.ml
+  No Error