unikernel/duniverse/dune_/test/blackbox-tests/test-cases/quoting/cat.t/run.t

@@ -0,0 +1,34 @@
+  $ cat > a
+  $ cat > b
+  $ cat > dune-project << EOF
+  > (lang dune 3.9)
+  > EOF
+
+It should be possible to expand %{deps} in a cat action since it allows multiple
+arguments.
+
+  $ cat > dune <<EOF
+  > (rule
+  >  (alias foo)
+  >  (deps a b)
+  >  (action
+  >   (cat %{deps})))
+  > EOF
+
+This isn't possible in 3.9.
+
+  $ dune build @foo
+  File "dune", line 5, characters 7-14:
+  5 |   (cat %{deps})))
+             ^^^^^^^
+  Error: Variable %{deps} expands to 2 values, however a single value is
+  expected here. Please quote this atom.
+  [1]
+
+But it is in 3.10:
+
+  $ cat > dune-project << EOF
+  > (lang dune 3.10)
+  > EOF
+
+  $ dune build @foo