unikernel/duniverse/dune_/test/blackbox-tests/test-cases/symlink-targets.t

@@ -0,0 +1,38 @@
+Test demonstrating the handling of actions that produce symlinks.
+
+  $ echo "(lang dune 2.8)" > dune-project
+  $ cat >dune <<EOF
+  > (rule (targets b) (deps a) (action (bash "ln -s a b")))
+  > EOF
+  $ echo a > a
+  $ dune build ./b --display=short
+          bash b
+  $ readlink _build/default/b
+  a
+  $ cat _build/default/b
+  a
+
+  $ dune build ./b --display=short
+
+  $ echo a-v2 > a
+  $ dune build ./b --display=short
+          bash b
+  $ cat _build/default/b
+  a-v2
+
+Demonstrate the current behaviour where promoting the target turns the symlink
+into a regular file.
+
+# CR-someday amokhov: We should probably fix this.
+
+  $ cat >dune <<EOF
+  > (rule (mode promote) (targets b) (deps a) (action (bash "ln -s a b")))
+  > EOF
+
+  $ dune build ./b
+  $ cat b
+  a-v2
+  $ dune_cmd stat kind _build/default/b
+  symbolic link
+  $ dune_cmd stat kind b
+  regular file