unikernel/duniverse/dune_/test/blackbox-tests/test-cases/melange/preprocess.t

@@ -0,0 +1,26 @@
+Test (preprocess) field on melange.emit stanza
+
+  $ cat > dune-project <<EOF
+  > (lang dune 3.8)
+  > (using melange 0.1)
+  > EOF
+
+  $ cat > dune <<EOF
+  > (melange.emit
+  >  (target output)
+  >  (modules main)
+  >  (alias mel)
+  >  (emit_stdlib false)
+  >  (preprocess
+  >   (action
+  >    (run cat %{input-file}))))
+  > EOF
+
+  $ cat > main.ml <<EOF
+  > let () =
+  >   print_endline "hello"
+  > EOF
+
+  $ dune build @mel
+  $ node _build/default/output/main.js
+  hello