unikernel/duniverse/dune_/test/blackbox-tests/test-cases/deps-conf-vars/dynamic.t

@@ -0,0 +1,18 @@
+The following should fail saying that %{read:...} isn't allowed in this
+position, because it was indeed not supported by older versions of Dune. Due to
+improvements in the core of Dune, this is now supported. Because the error used
+to be discovered dynamically as we were trying to evaluate the dependencies,
+the new code simply doesn't detect it. We should add a proper version check for
+this feature.
+
+  $ echo "(lang dune 1.6)" > dune-project
+  $ cat >dune <<EOF
+  > (rule (with-stdout-to foo (echo bar)))
+  > (alias
+  >  (name default)
+  >  (deps %{read:foo}))
+  > EOF
+  $ dune build
+  Error: No rule found for bar
+  -> required by alias default in dune:2
+  [1]