Test update

tests/reftests/env.win32.test

@@ -1,4 +1,45 @@
 N0REP0
+### : root and switches with spaces :
+### <pkg:nv.1>
+opam-version: "2.0"
+flags: compiler
+### RT="$BASEDIR/root 2"
+### SW="switch w spaces"
+### OPAMNOENVNOTICE=0
+### opam init -na --bare --bypass-check --disable-sandbox --root "$RT" defaut ./REPO
+No configuration file found, using built-in defaults.
+
+<><> opam root file store <><><><><><><><><><><><><><><><><><><><><><><><><><><>
+
+You have specified a root directory for opam containing a space.
+
+Many parts of the OCaml ecosystem do not presently work correctly
+when installed to directories containing spaces. You have been warned!
+
+Where should opam store files?
+  1. Redirect files to a directory in C:\opamroot
+  2. Redirect files to an alternate directory
+> 3. Do not redirect anything and stick with ${BASEDIR}/root 2
+  4. Abort initialisation
+
+[1/2/3/4] 3
+
+<><> Fetching repository information ><><><><><><><><><><><><><><><><><><><><><>
+[defaut] Initialised
+### opam switch create "./$SW" nv --root "$RT"
+
+<><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
+Switch invariant: ["nv"]
+
+<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+-> installed nv.1
+Done.
+# Run eval $(opam env '--root=${BASEDIR}/root 2' '--switch=${BASEDIR}/switch w spaces') to update the current shell environment
+### opam env --root "$RT" --switch "./$SW" | grep "PREFIX" | ';' -> ':'
+OPAM_SWITCH_PREFIX='${BASEDIR}/switch w spaces\_opam': export OPAM_SWITCH_PREFIX:
+### opam var root --root "$RT"
+${BASEDIR}/root 2
+### OPAMNOENVNOTICE=1
 ### : setenv & build env rewriting :
 ### opam switch create rewriting --empty
 ### : Test for #4861