Add test for #4992

tests/nix-shell.sh

@@ -99,3 +99,5 @@ nix_develop -f shell.nix shellDrv -c echo foo |& grep -q foo
 source <(nix print-dev-env -f shell.nix shellDrv)
 [[ -n $stdenv ]]
 [[ ${arr1[2]} = "3 4" ]]
+[[ ${arr2[1]} = $'\n' ]]
+[[ ${arr2[2]} = $'x\ny' ]]

tests/shell.nix

@@ -21,6 +21,7 @@ let pkgs = rec {
       export PATH=$PATH:$pkg/bin
     done
     declare -a arr1=(1 2 "3 4" 5)
+    declare -a arr2=(x $'\n' $'x\ny')
   '';
 
   stdenv = mkDerivation {