# $FreeBSD$

HOME=/tmp
roothome=~root
if [ "$roothome" = "~root" ]; then
	echo "~root is not expanded!"
	exit 2
fi

testcase() {
	code="$1"
	expected="$2"
	oIFS="$IFS"
	eval "$code"
	IFS='|'
	result="$#|$*"
	IFS="$oIFS"
	if [ "x$result" = "x$expected" ]; then
		ok=x$ok
	else
		failures=x$failures
		echo "For $code, expected $expected actual $result"
	fi
}

testcase 'set -- ${$+~}'			'1|/tmp'
testcase 'set -- ${$+~/}'			'1|/tmp/'
testcase 'set -- ${$+~/foo}'			'1|/tmp/foo'
testcase 'set -- ${$+x~}'			'1|x~'
testcase 'set -- ${$+~root}'			"1|$roothome"
testcase 'set -- ${$+"~"}'			'1|~'
testcase 'set -- ${$+"~/"}'			'1|~/'
testcase 'set -- ${$+"~/foo"}'			'1|~/foo'
testcase 'set -- ${$+"x~"}'			'1|x~'
testcase 'set -- ${$+"~root"}'			"1|~root"
testcase 'set -- "${$+~}"'			'1|~'
testcase 'set -- "${$+~/}"'			'1|~/'
testcase 'set -- "${$+~/foo}"'			'1|~/foo'
testcase 'set -- "${$+x~}"'			'1|x~'
testcase 'set -- "${$+~root}"'			"1|~root"
testcase 'set -- ${HOME#~}'			'0|'
h=~
testcase 'set -- "$h"'				'1|/tmp'
f=~/foo
testcase 'set -- "$f"'				'1|/tmp/foo'
testcase 'set -- ${f#~}'			'1|/foo'
testcase 'set -- ${f#~/}'			'1|foo'

ooIFS=$IFS
IFS=m
testcase 'set -- ${$+~}'			'1|/tmp'
testcase 'set -- ${$+~/foo}'			'1|/tmp/foo'
testcase 'set -- ${$+$h}'			'2|/t|p'
testcase 'set -- ${HOME#~}'			'0|'
IFS=$ooIFS

t=\~
testcase 'set -- ${$+$t}'			'1|~'
r=$(cat <<EOF
${HOME#~}
EOF
)
testcase 'set -- $r'				'0|'
r=$(cat <<EOF
${HOME#'~'}
EOF
)
testcase 'set -- $r'				'1|/tmp'
r=$(cat <<EOF
${t#'~'}
EOF
)
testcase 'set -- $r'				'0|'
r=$(cat <<EOF
${roothome#~root}
EOF
)
testcase 'set -- $r'				'0|'
r=$(cat <<EOF
${f#~}
EOF
)
testcase 'set -- $r'				'1|/foo'
r=$(cat <<EOF
${f#~/}
EOF
)
testcase 'set -- $r'				'1|foo'

test "x$failures" = x