unikernel/duniverse/dune_/test/blackbox-tests/test-cases/mdx-stanza/github7077.t

@@ -0,0 +1,39 @@
+When mdx is used to generate a program, the program will read the preludes at
+run time. This test makes sure that this is recorded as a dependency.
+
+  $ cat > dune << EOF
+  > (mdx (preludes prelude.ml))
+  > EOF
+
+  $ cat > dune-project << EOF
+  > (lang dune 3.6)
+  > (using mdx 0.3)
+  > EOF
+
+  $ cat > prelude.ml << EOF
+  > let foo () = 1
+  > EOF
+
+  $ cat > README.md << 'EOF'
+  > ```ocaml
+  > # foo ();;
+  > - : int = 1
+  > ```
+  > EOF
+
+  $ dune runtest
+
+  $ echo 'let foo () = 2' > prelude.ml
+
+  $ dune runtest --auto-promote
+  File "README.md", line 1, characters 0-0:
+  Error: Files _build/default/README.md and
+  _build/default/.mdx/README.md.corrected differ.
+  Promoting _build/default/.mdx/README.md.corrected to README.md.
+  [1]
+
+  $ cat README.md
+  ```ocaml
+  # foo ();;
+  - : int = 2
+  ```