unikernel/duniverse/dune_/test/blackbox-tests/test-cases/watching/sandbox-mkdir.t

@@ -0,0 +1,38 @@
+Test that Dune mkdirs the right set of directories in the sandbox.
+
+  $ . ./helpers.sh
+
+----------------------------------------------------------------------------------
+* Compile a simple rule
+
+  $ echo "(lang dune 2.0)" > dune-project
+
+  $ mkdir test
+  $ cat >test/dune <<EOF
+  > (rule
+  >  (target target)
+  >  (mode promote)
+  >  (deps (sandbox always))
+  >  (action (chdir subdir (system "echo hello > ../target; pwd"))))
+  > EOF
+
+  $ start_dune
+
+  $ build test/target
+  Success
+  $ cat test/target
+  hello
+
+Now force a rebuild. This succeeds (in the past it could fail due to [mkdir]
+memoization).
+
+  $ rm _build/default/test/target test/target
+  $ build test
+  Success
+
+  $ with_timeout dune shutdown
+  $ cat .#dune-output | sed -e 's#.sandbox/[^/]*/default/test/subdir#.sandbox/<hash>/default/test/subdir#'
+  $TESTCASE_ROOT/_build/.sandbox/<hash>/default/test/subdir
+  Success, waiting for filesystem changes...
+  $TESTCASE_ROOT/_build/.sandbox/<hash>/default/test/subdir
+  Success, waiting for filesystem changes...