unikernel/duniverse/dune_/test/blackbox-tests/test-cases/github10721.t

@@ -0,0 +1,19 @@
+  $ cat > dune-project << EOF
+  > (lang dune 3.0)
+  > EOF
+
+  $ cat > dune-workspace << EOF
+  > (lang dune 3.0)
+  > (context
+  >  (opam
+  >   (switch /absolute/path/to/opam/switchname)))
+  > EOF
+
+  $ dune build
+  File "dune-workspace", line 4, characters 10-43:
+  4 |   (switch /absolute/path/to/opam/switchname)))
+                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  Error: The name generated from this switch can not be used as a context name.
+  Please use (name) to disambiguate.
+  Hint: (name switchname) would be a valid context name
+  [1]