$* <<EOI >>EOO          # file-dir
cmd &file &dir/
EOI
cmd &file &dir/
EOO

$* <<EOI >>EOO          # quote-file-dir
cmd &"f ile" &"d ir/"
EOI
cmd &"f ile" &"d ir/"
EOO

$* <<EOI >>EOO          # dup-file
cmd &file &file
EOI
cmd &file &file
EOO

$* <<EOI 2>>EOE != 0    # file-fail1
cmd & >file
EOI
testscript:1:7: error: missing cleanup path
EOE

$* <<EOI 2>>EOE != 0    # file-fail2
cmd &
EOI
testscript:1:6: error: missing cleanup path
EOE

$* <<EOI 2>>EOE != 0    # file-fail3
cmd &""
EOI
testscript:1:6: error: empty cleanup path
EOE