unikernel/duniverse/dune_/test/blackbox-tests/test-cases/rule-target.t

@@ -0,0 +1,28 @@
+Rules with targets outside the build directory are dot allowed.
+
+  $ echo '(lang dune 1.10)' > dune-project
+  $ cat > dune <<EOF
+  > (rule (with-stdout-to /abs/path (system "echo toto")))
+  > EOF
+
+  $ dune build @all
+  File "dune", line 1, characters 22-31:
+  1 | (rule (with-stdout-to /abs/path (system "echo toto")))
+                            ^^^^^^^^^
+  Error: Target /abs/path is outside the build directory. This is not allowed.
+  [1]
+
+Rules with targets whose names clash with Dune's internal directories
+are not allowed.
+
+  $ cat > dune <<EOF
+  > (rule (with-stdout-to .dune (system "echo toto")))
+  > EOF
+
+  $ dune build @all
+  File "dune", line 1, characters 0-50:
+  1 | (rule (with-stdout-to .dune (system "echo toto")))
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  Error: This rule defines a target ".dune" whose name conflicts with an
+  internal directory used by Dune. Please use a different name.
+  [1]