ladybird/Userland/Shell/Tests/loop.sh

#!/bin/sh

source $(dirname "$0")/test-commons.inc
# go to a writable directory
cd /tmp
singlecommand_ok=yes
multicommand_ok=yes
inlineexec_ok=yes
implicit_ok=yes
infinite_ok=''
break_ok=yes
continue_ok=yes
break_in_infinite_ok=''

# Full form
 # Empty
for x in () { }

 # Empty block but nonempty list
for x in (1 2 3) { }

 # Single command in block
for cmd in ((test 1 = 1) (test 2 = 2)) {
    $cmd || unset singlecommand_ok
}

# with index
for index i val in (0 1 2) {
    if not test "$i" -eq "$val" {
        unset singlecommand_ok
    }
}

for index i val in (1 2 3) {
    if not test "$i" -ne "$val" {
        unset singlecommand_ok
    }
}

 # Multiple commands in block
for cmd in ((test 1 = 1) (test 2 = 2)) {
    test -z "$cmd"
    test -z "$cmd" && unset multicommand_ok

}

 # $(...) as iterable expression
test_file=sh-test-1
echo 1 > $test_file
echo 2 >> $test_file
echo 3 >> $test_file
echo 4 >> $test_file
lst=()
for line in $(cat $test_file) {
    lst=($lst $line)
}
test "$lst" = "1 2 3 4" || unset inlineexec_ok
rm $test_file

# Implicit var
for ((test 1 = 1) (test 2 = 2)) {
    $it || unset implicit_ok
}

# Infinite loop
loop {
    infinite_ok=yes
    break
    unset break_ok
}

# 'Continue'
for (1 2 3) {
    continue
    unset continue_ok
}

# 'break' in infinite external loop
for $(yes) {
    break_in_infinite_ok=yes
    break
}

if not test $singlecommand_ok { fail Single command inside for body }
if not test $multicommand_ok { fail Multiple commands inside for body }
if not test $inlineexec_ok { fail Inline Exec }
if not test $implicit_ok { fail implicit iter variable }
if not test $infinite_ok { fail infinite loop }
if not test $break_ok { fail break }
if not test $continue_ok { fail continue }
if not test $break_in_infinite_ok { fail break from external infinite loop }

if not test \
    "$singlecommand_ok $multicommand_ok $inlineexec_ok $implicit_ok $infinite_ok $break_ok $continue_ok $break_in_infinite_ok" \
    = "yes yes yes yes yes yes yes yes" {

    fail "Something failed :("
}
# return to original directory
cd -
echo PASS