unikernel/duniverse/dune_/test/blackbox-tests/test-cases/github2990.t/dune

@@ -0,0 +1,15 @@
+(executable
+ (name print)
+ (modules print))
+
+(rule
+ (with-stdout-to print.ml
+  (echo "let () = print_endline \"MESSAGE\"")))
+
+(rule
+ (alias runtest)
+ (action
+  (progn
+   (with-stdout-to output.expected (echo "MESSAGE\n"))
+   (with-stdout-to output.actual (run ./print.exe))
+   (diff? output.expected output.actual))))

unikernel/duniverse/dune_/test/blackbox-tests/test-cases/github2990.t/dune-project

@@ -0,0 +1 @@
+(lang dune 2.5)

unikernel/duniverse/dune_/test/blackbox-tests/test-cases/github2990.t/run.t

@@ -0,0 +1,9 @@
+Test for problem in #2990
+
+  $ dune runtest
+
+Make sure that `output.actual` is not inferred as a target:
+
+  $ dune build output.actual
+  Error: Don't know how to build output.actual
+  [1]