#!/bin/bash

# Copyright 2013 Divya Kothari <divya.s.kothari@gmail.com>
# Copyright 2013 Robin Mittal <robinmittal.it@gmail.com>

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

umask 022

PERM="---""--x""-w-""-wx""r--""r-x""rw-""rwx"

num2perm()
{
  for i in 0 1 2
  do
    num=${1:$i:1}
    printf "%s" ${PERM:$(($num*3)):3}
  done
  echo
}

# Creating test files to test chmod command
mkdir dir
touch file

# We don't need to test all 512 permissions
for u in 0 1 2 3 4 5 6 7
do
  for g in 0 3 6
  do
    for o in 0 7
    do
      if [ "$type" == file ]
      then
        type=dir
        rm -rf "./$type" && mkdir $type
        DASH=d
      else
        type=file
        rm -f "./$type" && touch $type
        DASH=-
      fi
      DASHES=$(num2perm $u$g$o)
      testing "$u$g$o $type" "chmod $u$g$o $type && 
        ls -ld $type | cut -d' ' -f 1 | cut -d. -f 1" "$DASH$DASHES\n" "" ""
    done
  done
done

rm -rf dir file && mkdir dir && touch file
testing "750 dir 640 file" \
  "chmod 750 dir 640 file 2>/dev/null ||
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-x---\n-rwxr-x---\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "666 dir file" \
  "chmod 666 dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drw-rw-rw-\n-rw-rw-rw-\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "765 *" "chmod 765 * &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxrw-r-x\n-rwxrw-r-x\n" "" ""

##### u,g,o,a=r,w,x
rm -rf dir file && mkdir dir && touch file
testing "u=r dir file" "chmod u=r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "dr--r-xr-x\n-r--r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "u=w dir file" "chmod u=w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d-w-r-xr-x\n--w-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "u=x dir file" "chmod u=x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d--xr-xr-x\n---xr--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "u+r dir file" "chmod u+r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "u+w dir file" "chmod u+w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "u+x dir file" "chmod u+x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rwxr--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "u-r dir file" "chmod u-r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d-wxr-xr-x\n--w-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "u-w dir file" "chmod u-w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "dr-xr-xr-x\n-r--r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "u-x dir file" "chmod u-x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drw-r-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g=r dir file" "chmod g=r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr--r-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g=w dir file" "chmod g=w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwx-w-r-x\n-rw--w-r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g=x dir file" "chmod g=x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwx--xr-x\n-rw---xr--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g+r dir file" "chmod g+r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g+w dir file" "chmod g+w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxrwxr-x\n-rw-rw-r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g+x dir file" "chmod g+x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r-xr--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g-r dir file" "chmod g-r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwx--xr-x\n-rw----r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g-w dir file" "chmod g-w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "g-x dir file" "chmod g-x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr--r-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o=r dir file" "chmod o=r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr--\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o=w dir file" "chmod o=w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-x-w-\n-rw-r---w-\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o=x dir file" "chmod o=x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-x--x\n-rw-r----x\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o+r dir file" "chmod o+r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o+w dir file" "chmod o+w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xrwx\n-rw-r--rw-\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o+x dir file" "chmod o+x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r-x\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o-r dir file" "chmod o-r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-x--x\n-rw-r-----\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o-w dir file" "chmod o-w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "o-x dir file" "chmod o-x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr--\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a=r dir file" "chmod a=r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "dr--r--r--\n-r--r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a=w dir file" "chmod a=w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d-w--w--w-\n--w--w--w-\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a=x dir file" "chmod a=x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d--x--x--x\n---x--x--x\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a+r dir file" "chmod a+r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a+w dir file" "chmod a+w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxrwxrwx\n-rw-rw-rw-\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a+x dir file" "chmod a+x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rwxr-xr-x\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a-r dir file" "chmod a-r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d-wx--x--x\n--w-------\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a-w dir file" "chmod a-w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "dr-xr-xr-x\n-r--r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "a-x dir file" "chmod a-x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drw-r--r--\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "=r dir file" "chmod =r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "dr--r--r--\n-r--r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "=w dir file" "chmod =w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d-w-------\n--w-------\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "=x dir file" "chmod =x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d--x--x--x\n---x--x--x\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "+r dir file" "chmod +r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "+w dir file" "chmod +w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rw-r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "+x dir file" "chmod +x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drwxr-xr-x\n-rwxr-xr-x\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "-r dir file" "chmod -r dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "d-wx--x--x\n--w-------\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "-w dir file" "chmod -w dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "dr-xr-xr-x\n-r--r--r--\n" "" ""

rm -rf dir file && mkdir dir && touch file
testing "-x dir file" "chmod -x dir file &&
   ls -ld dir file | cut -d' ' -f 1 | cut -d. -f 1" "drw-r--r--\n-rw-r--r--\n" "" ""

# Removing test files for cleanup purpose
rm -rf dir file