#!/bin/bash

[ -f testing.sh ] && . testing.sh

#testing "name" "command" "result" "infile" "stdin"

testcmd "-- isn't parsed" "-- == -- && echo yes" "yes\n" "" ""

# Number and position of args is important
testcmd 'no args is false' '; echo $?'  '1\n' '' ''
testcmd 'empty string is false' '""; echo $?' '1\n' '' ''
testcmd '1 arg is true if not empty string' '== ; echo $?' '0\n' '' ''
testcmd "1 arg isn't an operand" '-t 2>&1; echo $?' '0\n' '' ''
testcmd '2 args' '-e == ; echo $?' '1\n' '' ''
testcmd '3 args' '-e == -e ; echo $?' '0\n' '' ''

# parse as operator before parsing as parentheses around one argument
testcmd '' '\( == \) ; echo $?' '1\n' '' ''
testcmd '' '\( == \( ; echo $?' '0\n' '' ''
testcmd '' '\( "" \) ; echo $?' '1\n' '' ''
testcmd '' '\( x \) ; echo $?' '0\n' '' ''

# TODO: Should also have device and socket files, but requires root

mkdir d
touch f
ln -s /dev/null L
echo nonempty > s
mkfifo p

type_test()
{
  for i in d f L s p n
  do
    "$C" $* $i && echo -n $i
  done
}

testing "-b" "type_test -b" "" "" ""
testing "-c" "type_test -c" "L" "" ""
testing "-d" "type_test -d" "d" "" ""
testing "-e" "type_test -e" "dfLsp" "" ""
testing "-f" "type_test -f" "fs" "" ""
testing "-h" "type_test -h" "L" "" ""
testing "-L" "type_test -L" "L" "" ""
testing "-p" "type_test -p" "p" "" ""
testing "-S" "type_test -S" "" "" ""
testing "-s" "type_test -s" "ds" "" ""
testing "! -e" 'type_test ! -e' "n" "" ""

rm f L s p
rmdir d

# Alas can't expand to a redirect, so just test one success/fail
testcmd "-t" '-t 0 < /dev/null; echo $?' '1\n' '' ''
testcmd "-t2" '-t 0 < /dev/ptmx; echo $?' '0\n' '' ''

# test -rwx each bit position and failure
touch walrus
MASK=111
for i in x w r k g u; do
  [ $i == k ] && MASK=1000
  XX=no
  [ $(id -u) -eq 0 ] && [ $i == r -o $i == w ] && XX=yes  # Root always has access
  # test everything off produces "off"
  chmod 000 walrus
  testcmd "-$i 0" "-$i walrus && echo yes || echo no" "$XX\n" "" ""
  chmod $((7777-$MASK)) walrus
  testcmd "-$i inverted" "-$i walrus && echo yes || echo no" "$XX\n" "" ""
  MASK=$(($MASK<<1))
done
unset MASK
# Test setuid setgid sticky enabled
for i in uu+s gg+s k+t; do
  chmod 000 walrus
  chmod ${i:1}+s walrus
  testcmd "-${i:0:1}" "-${i:0:1} walrus && echo yes" "yes\n" "" ""
done
# test each ugo+rwx bit position individually
XX=no
# Note: chmod 007 means everybody EXCEPT owner/group can access it. (Unix!)
[ $(id -u) -eq 0 ] && XX=yes  # Root always has access
for i in 1 10 100; do for j in x w r; do
  chmod $i walrus

  [ $i == 100 ] && XX=yes
  testcmd "-$j $i" "-$j walrus && echo yes || echo no" "$XX\n" "" ""
  i=$((i<<1))
done; done
rm -f walrus

# Not zero length, zero length, equals, not equals
testcmd "-n" "-n '' || echo yes" "yes\n" "" ""
testcmd "-n2" "-n a && echo yes" "yes\n" "" ""
testcmd "-z" "-z '' && echo yes" "yes\n" "" ""
testcmd "-z2" "-z a || echo yes" "yes\n" "" ""
testcmd "" "a = b || echo yes" "yes\n" "" ""
testcmd "" "'' = '' && echo yes" "yes\n" "" ""
testcmd "a != b" "a != b && echo yes" "yes\n" "" ""
testcmd "a != b" "a != a || echo yes" "yes\n" "" ""

arith_test()
{
  $C -1 $1 1 && echo -n l
  $C 0 $1 0 && echo -n e
  $C -3 $1 -5 && echo -n g
}

testing "-eq" "arith_test -eq" "e" "" ""
testing "-ne" "arith_test -ne" "lg" "" ""
testing "-gt" "arith_test -gt" "g" "" ""
testing "-ge" "arith_test -ge" "eg" "" ""
testing "-lt" "arith_test -lt" "l" "" ""
testing "-le" "arith_test -le" "le" "" ""

testing "positional" "test -a == -a && echo yes" "yes\n" "" ""
testing "! stacks" 'test \! \! \! \! 2 -eq 2 && echo yes' "yes\n" "" ""

# bash builtin "test" has these, but /usr/bin/test does not.
testing "<1" 'test abc \< def && echo yes' "yes\n" "" ""
testing "<2" 'test def \< abc || echo yes' "yes\n" "" ""
testing ">1" 'test abc \> def || echo yes' "yes\n" "" ""
testing ">2" 'test def \> abc && echo yes' "yes\n" "" ""
# bash only has this for [[ ]] but extra tests to _exclude_ silly...
toyonly testcmd "=~" 'abc =~ a.c && echo yes' "yes\n" "" ""
toyonly testcmd "=~ fail" 'abc =~ d.c; echo $?' '1\n' "" ""
toyonly testcmd "=~ zero length match" 'abc =~ "1*" && echo yes' 'yes\n' '' ''

# test ! = -o a
# test ! \( = -o a \)
# test \( ! = \) -o a
# test \( \)


# -e == -a
# -e == -a -o -d != -o
# \( "x" \) -a \) == \)
# \( ! ! ! -e \) \)

#  // () -a (() -a () -o ()) -o ()
#  // x -a ( x -o x ) -a x
#  // x -o ( x -a x ) -a x -o x

# trailing ! and (
# test \( ! ! ! -e \) \)
# test \( \( "" \) -a "" \) -a ""
# test !
# test \( \) == \) \) -a x

# test \( "" \) -a \) == \)
# test \( "x" \) -a \) == \)
# test -e == -a
# test \( "" \)
