unikernel/duniverse/dune_/test/blackbox-tests/test-cases/pkg/withenv.t

@@ -0,0 +1,29 @@
+Setting environment variables in actions
+
+  $ . ./helpers.sh
+
+  $ make_lockdir
+  $ cat >dune.lock/test.pkg <<'EOF'
+  > (version 0.0.1)
+  > (build
+  >  (withenv
+  >   ((= FOO myfoo)
+  >    (= XYZ 000)
+  >    (+= XYZ 111)
+  >    (= BAR xxx)
+  >    (+= BAR yyy)
+  >    (:= BAR "")
+  >    (+= BAR "")
+  >    (:= BAZ baz)
+  >    (=: QUX qux))
+  >   (system "echo XYZ=$XYZ; echo FOO=$FOO; echo BAR=$BAR; echo BAZ=$BAZ; echo QUX=$QUX")))
+  > EOF
+  $ build_pkg test
+  XYZ=111:000
+  FOO=myfoo
+  BAR=yyy:xxx
+  BAZ=baz
+  QUX=qux
+
+Note that the value so of BAZ and QUX above should be "baz:" and ":qux" respectively.
+See https://github.com/ocaml/dune/issues/10440