changeset 1364:94677e7b6d97

I have developed few testsuite for toybox commands - ls, ln, rm, mv, printf, dd, renice.
author Divya Kothari <divya.s.kothari@gmail.com>
date Thu, 26 Jun 2014 07:25:20 -0500
parents e65f9a9ba62d
children 2320af12ba95
files scripts/test/dd.test scripts/test/ln.test scripts/test/ls.test scripts/test/mv.test scripts/test/printf.test scripts/test/renice.test scripts/test/rm.test
diffstat 7 files changed, 485 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/test/dd.test	Thu Jun 26 07:25:20 2014 -0500
@@ -0,0 +1,83 @@
+#!/bin/bash
+
+# Copyright 2013 Robin Mittal <robinmittal.it@gmail.com>
+# Copyright 2013 Divya Kothari <divya.s.kothari@gmail.com>
+
+[ -f testing.sh ] && . testing.sh
+
+# 'dd' command, stderr prints redirecting to /dev/null
+opt="2>/dev/null"
+
+#testing "name" "command" "result" "infile" "stdin"
+
+testing "dd if=(file)" "dd if=input $opt" "I WANT\n" "I WANT\n" ""
+testing "dd of=(file)" "dd of=file $opt && cat file" "I WANT\n" "" "I WANT\n"
+testing "dd if=file of=file" "dd if=input of=foo $opt && cat foo && rm -f foo" \
+  "I WANT\n" "I WANT\n" ""
+testing "dd if=file | dd of=file" "dd if=input $opt | dd of=foo $opt &&
+   cat foo && rm -f foo" "I WANT\n" "I WANT\n" ""
+testing "dd (stdout)" "dd $opt" "I WANT\n" "" "I WANT\n"
+testing "dd sync,noerror" \
+  "dd if=input of=outFile seek=8860 bs=1M conv=sync,noerror $opt &&
+   stat -c \"%s\" outFile && rm -f outFile" "9291431936\n" "I WANT\n" ""
+testing "dd if=file of=(null)" \
+  "dd if=input of=/dev/null $opt && echo 'yes'" "yes\n" "I WANT\n" ""
+testing "dd with if of bs" \
+  "dd if=/dev/zero of=sda.txt bs=512 count=1 $opt &&
+   stat -c '%s' sda.txt && rm -f sda.txt" "512\n" "" ""
+testing "dd with if of ibs obs" \
+  "dd if=/dev/zero of=sda.txt ibs=512 obs=256 count=1 $opt &&
+   stat -c '%s' sda.txt && rm -f sda.txt" "512\n" "" ""
+testing "dd with if of ibs obs count" \
+  "dd if=/dev/zero of=sda.txt ibs=512 obs=256 count=3 $opt &&
+   stat -c '%s' sda.txt && rm -f sda.txt" "1536\n" "" ""
+
+ln -s input softlink
+testing "dd if=softlink" "dd if=softlink $opt" "I WANT\n" "I WANT\n" ""
+unlink softlink
+
+ln -s file softlink
+testing "dd if=file of=softlink" "dd if=input of=softlink $opt &&
+   [ -f file -a -L softlink ] && cat softlink" "I WANT\n" "I WANT\n" ""
+unlink softlink && rm -f file
+
+testing "dd if=file of=file (same file)" "dd if=input of=input $opt &&
+   [ -f input ] && cat input && echo 'yes'" "yes\n" "I WANT\n" ""
+
+testing "dd with ibs obs bs" "dd ibs=2 obs=5 bs=9 $opt" "I WANT\n" "" "I WANT\n"
+testing "dd with ibs obs bs if" "dd ibs=2 obs=5 bs=9 if=input $opt" \
+  "I WANT\n" "I WANT\n" ""
+
+testing "dd with ibs obs count" "dd ibs=1 obs=1 count=1 $opt" "I" "" "I WANT\n"
+testing "dd with ibs obs count if" "dd ibs=1 obs=1 count=3 if=input $opt" \
+  "I W" "I WANT\n" ""
+
+testing "dd with count" "dd count=1 $opt" "I WANT\n" "" "I WANT\n"
+testing "dd with count if" "dd count=1 if=input $opt" "I WANT\n" "I WANT\n" ""
+
+testing "dd with skip" "dd skip=0 $opt" "I WANT\n" "" "I WANT\n"
+testing "dd with skip if" "dd skip=0 if=input $opt" "I WANT\n" "I WANT\n" ""
+
+testing "dd with seek" "dd seek=0 $opt" "I WANT\n" "" "I WANT\n"
+testing "dd with seek if" "dd seek=0 if=input $opt" "I WANT\n" "I WANT\n" ""
+
+# These type of conv is not supported in toybox: 'ascii', 'ebcdic', 'ibm',
+# 'block', 'unblock', 'nocreat', 'notronc', 'lcase', 'ucase', 'excl', 'swab'
+
+# Testing only 'notrunc', 'noerror', 'fsync', 'sync'
+
+testing "dd conv=notrunc" "dd conv=notrunc $opt" "I WANT\n" "" "I WANT\n"
+testing "dd conv=notrunc with IF" "dd conv=notrunc if=input $opt" "I WANT\n" \
+  "I WANT\n" ""
+
+testing "dd conv=noerror" "dd conv=noerror $opt" "I WANT\n" "" "I WANT\n"
+testing "dd conv=noerror with IF" "dd conv=noerror if=input $opt" "I WANT\n" \
+  "I WANT\n" ""
+
+testing "dd conv=fsync" "dd conv=fsync $opt" "I WANT\n" "" "I WANT\n"
+testing "dd conv=fsync with IF" "dd conv=fsync if=input $opt" "I WANT\n" \
+  "I WANT\n" ""
+
+testing "dd conv=sync" "dd conv=sync $opt | head -n 1" "I WANT\n" "" "I WANT\n"
+testing "dd conv=sync with IF" "dd conv=sync if=input $opt | head -n 1" "I WANT\n" \
+  "I WANT\n" ""
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/test/ln.test	Thu Jun 26 07:25:20 2014 -0500
@@ -0,0 +1,70 @@
+#!/bin/bash
+
+# Copyright 2013 Robin Mittal <robinmittal.it@gmail.com>
+# Copyright 2013 Divya Kothari <divya.s.kothari@gmail.com>
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+#set -x
+
+echo file1 > file
+testing "ln create_hardlink" "ln file hlink && [ file -ef hlink ] &&
+          echo 'yes'" "yes\n" "" ""
+testing "ln create_softlink" "ln -s file slink && [ -L slink ] &&
+          readlink slink" "file\n" "" ""
+rm slink hlink
+
+echo hlink1 > hlink
+testing "ln force_create_hardlink" "ln -f file hlink &&
+          [ file -ef hlink ] && cat hlink 2>/dev/null" "file1\n" "" ""
+
+echo slink1 > slink
+testing "ln force_create_softlink" "ln -f -s file slink &&
+          [ -L slink ] && readlink slink" "file\n" "" ""
+rm slink hlink
+
+echo hlink1 > hlink
+set +e
+testing "ln preserves_hardlinks" "ln file hlink 2>/dev/null || echo 'yes'" \
+          "yes\n" "" ""
+
+echo slink1 > slink
+set +e
+testing "ln preserves_softlinks" "ln -s file slink 2>/dev/null || echo 'yes'" \
+          "yes\n" "" ""
+rm slink hlink
+
+mkdir dir
+testing "ln multilevel_symbolic_links" "ln -s dir slink &&
+          ln -s file slink && [ -L slink -a -L slink/file ] &&
+          readlink slink && readlink slink/file" "dir\nfile\n" "" ""
+rm slink
+
+testing "ln no_dereference" "ln -s dir slink &&
+          ln -n -s file slink 2>/dev/null || [ -L slink ] && readlink slink" \
+          "dir\n" "" ""
+rm -rf file dir slink
+
+touch file1 file2 && mkdir dir
+testing "ln create_multiple_hardlinks" "ln file* dir/ &&
+   [ file1 -ef dir/file1 -a file2 -ef dir/file2 ] && echo 'yes'" "yes\n" "" ""
+rm -rf file* dir
+
+touch file1 file2 && mkdir dir
+testing "ln create_multiple_softlinks" "ln -s file* dir/ &&
+          [ -L dir/file1 -a -L dir/file2 ] && readlink dir/file1 &&
+          readlink dir/file2" "file1\nfile2\n" "" ""
+rm -rf file* dir
+
+echo file1 > file
+testing "ln create_softlink_and_remove_sourcefile" "ln -s file slink &&
+          [ -L slink ] && rm file && cat slink 2>/dev/null || echo 'yes' " \
+          "yes\n" "" ""
+rm -f file slink
+
+echo file1 > file
+testing "ln create_hardlink_and_remove_sourcefile" "ln file hlink &&
+          [ file -ef hlink ] && rm file && [ -f hlink ] && echo 'yes'" \
+          "yes\n" "" ""
+rm -f file hlink
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/test/ls.test	Thu Jun 26 07:25:20 2014 -0500
@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# Copyright 2013 Robin Mittal <robinmittal.it@gmail.com>
+# Copyright 2013 Divya Kothari <divya.s.kothari@gmail.com>
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+#set -x
+
+# Creating test-file/dir for testing ls
+mkdir -p lstest/dir1 lstest/dir2 || exit 1
+echo "test file1" > lstest/file1.txt
+echo "test file2" > lstest/file2.txt
+echo "hidden file1" > lstest/.hfile1
+
+IN="cd lstest"
+OUT="cd .. "
+
+testing "ls no argument" "$IN && ls; $OUT" "dir1\ndir2\nfile1.txt\nfile2.txt\n" "" ""
+testing "ls with wild char" "$IN && ls file*; $OUT" "file1.txt\nfile2.txt\n" "" ""
+testing "ls with wild char - long listing" "$IN && ls -1 file*; $OUT" "file1.txt\nfile2.txt\n" "" ""
+testing "ls with -p" "$IN && ls -p; $OUT" "dir1/\ndir2/\nfile1.txt\nfile2.txt\n" "" ""
+testing "ls with -a" "$IN && ls -a; $OUT" \
+        ".\n..\ndir1\ndir2\nfile1.txt\nfile2.txt\n.hfile1\n" "" ""
+testing "ls with -A" "$IN && ls -A; $OUT" \
+        "dir1\ndir2\nfile1.txt\nfile2.txt\n.hfile1\n" "" ""
+testing "ls with -d" "$IN && ls -d; $OUT" ".\n" "" ""
+testing "ls with wild char and -d *" "$IN && ls -d *; $OUT" "dir1\ndir2\nfile1.txt\nfile2.txt\n" "" ""
+testing "ls with -k" "$IN && ls -k; $OUT" "dir1\ndir2\nfile1.txt\nfile2.txt\n" "" ""
+testing "ls with -m" "$IN && ls -m; $OUT" "dir1, dir2, file1.txt, file2.txt\n" "" ""
+testing "ls with -F" "$IN && ls -F; $OUT" "dir1/\ndir2/\nfile1.txt\nfile2.txt\n" "" ""
+testing "ls with -dk *" "$IN && ls -dk *; $OUT" "dir1\ndir2\nfile1.txt\nfile2.txt\n" "" ""
+
+ln -s file1.txt lstest/slink
+testing "ls softlink - long listing" "$IN && ls -l slink | awk '{ print \$NF }' ; $OUT" \
+          "file1.txt\n" "" ""
+rm -f lstest/slink
+
+rm -rf lstest/* && mkdir -p lstest/dir1 && touch lstest/file1.txt
+testing "ls nested recursively" "$IN && ls -R; $OUT" \
+          ".:\ndir1\nfile1.txt\n\n./dir1:\n" "" ""
+
+rm -rf lstest/* && touch lstest/file1.txt && INODE=`stat -c %i lstest/file1.txt`
+testing "ls with -i" "$IN && ls -i 2>/dev/null; $OUT" "$INODE file1.txt\n" "" ""
+unset INODE
+
+# Removing test dir for cleanup purpose
+rm -rf lstest
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/test/mv.test	Thu Jun 26 07:25:20 2014 -0500
@@ -0,0 +1,98 @@
+#!/bin/bash
+
+# Copyright 2013 Robin Mittal <robinmittal.it@gmail.com>
+# Copyright 2013 Divya Kothari <divya.s.kothari@gmail.com>
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+
+touch file
+testing "Move old_file to  new_file" "mv file file1 && [ ! -e file -a -f file1 ] &&
+   echo 'yes'" "yes\n" "" ""
+rm -f file*
+
+touch file
+mkdir dir
+testing "Move file to a dir" "mv file dir && [ ! -e file -a -f dir/file ] &&
+   echo 'yes'" "yes\n" "" ""
+rm -rf file* dir*
+
+mkdir dir
+testing "Move old_dir to new_dir" "mv dir dir1 && [ ! -e dir -a -d dir1 ] &&
+   echo 'yes'" "yes\n" "" ""
+rm -rf dir*
+
+mkdir dir1 dir2
+touch file1 file2 dir1/file3
+ln -s file1 link1
+testing "Move multiple files/dir to a dir" "mv file1 file2 link1 dir1 dir2 &&
+   [ ! -e file1 -a ! -e file2 -a ! -e link1 -a ! -e dir1 ] &&
+   [ -f dir2/file1 -a -f dir2/file2 -a -L dir2/link1 -a -d dir2/dir1 ] &&
+   [ -f dir2/dir1/file3 ] && readlink dir2/link1" "file1\n" "" ""
+rm -rf file* link* dir*
+
+touch file1
+testing "Move a empty file to new_file" "mv file1 file2 &&
+   [ ! -e file1 -a -f file2 ] && stat -c %s file2" "0\n" "" ""
+rm -rf file*
+
+mkdir dir1
+testing "Move enpty dir to new_dir" "mv dir1 dir2 &&
+   [ ! -d dir1 -a -d dir2 ] && echo 'yes'" "yes\n" "" ""
+rm -rf dir*
+
+dd if=/dev/zero of=file1 seek=10k count=1 >/dev/null 2>&1
+testing "Move file new_file (random file)" "mv file1 file2 &&
+   [ ! -e file1 -a -f file2 ] && stat -c %s file2" "5243392\n" "" ""
+rm -f file*
+
+touch file1
+ln -s file1 link1
+testing "Move link new_link (softlink)" "mv link1 link2 &&
+   [ ! -e link1 -a -L link2 ] && readlink link2" "file1\n" "" ""
+unlink tLink2 &>/dev/null
+rm -f file* link*
+
+touch file1
+ln file1 link1
+testing "Move link new_link (hardlink)" "mv link1 link2 &&
+   [ ! -e link1 -a -f link2 -a file1 -ef link2 ] && echo 'yes'" "yes\n" "" ""
+unlink link2 &>/dev/null
+rm -f file* link*
+
+touch file1
+chmod a-r file1
+testing "Move file new_file (unreadable)" "mv file1 file2 &&
+   [ ! -e file1 -a -f file2 ] && echo 'yes'" "yes\n" "" ""
+rm -f file*
+
+touch file1
+ln file1 link1
+mkdir dir1
+testing "Move file link dir (hardlink)" "mv file1 link1 dir1 &&
+   [ ! -e file1 -a ! -e link1 -a -f dir1/file1 -a -f dir1/link1 ] &&
+   [ dir1/file1 -ef dir1/link1 ] && echo 'yes'" "yes\n" "" ""
+rm -rf file* link* dir*
+
+mkdir -p dir1/dir2 dir3
+touch dir1/dir2/file1 dir1/dir2/file2
+testing "Move dir1/dir2 dir3/new_dir" "mv dir1/dir2 dir3/dir4 &&
+   [ ! -e dir1/dir2 -a -d dir3/dir4 -a -f dir3/dir4/file1 ] &&
+   [ -f dir3/dir4/file2 ] && echo 'yes'" "yes\n" "" ""
+rm -rf file* dir*
+
+mkdir dir1 dir2
+testing "Move dir new_dir (already exist)" "mv dir1 dir2 &&
+   [ ! -e dir1 -a -d dir2/dir1 ] && echo 'yes'" "yes\n" "" ""
+rm -rf dir*
+
+touch file1 file2
+testing "Move -f file new_file (exist)" "mv -f file1 file2 &&
+   [ ! -e file1 -a -e file2 ] && echo 'yes'" "yes\n" "" ""
+rm -f file*
+
+touch file1 file2
+testing "Move -n file new_file (exist)" "mv -n file1 file2 &&
+   [ -e file1 -a -e file2 ] && echo 'yes'" "yes\n" "" ""
+rm -f file*
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/test/printf.test	Thu Jun 26 07:25:20 2014 -0500
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# Copyright 2013 Robin Mittal <robinmittal.it@gmail.com>
+# Copyright 2013 Divya Kothari <divya.s.kothari@gmail.com>
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+#set -x
+
+testing "printf TEXT" "printf toyTestText" "toyTestText" "" ""
+testing "printf MULTILINE_TEXT" \
+  "printf 'Testing\nmultiline\ntext\nfrom\ntoybox\tcommand.\b'" \
+  "Testing\nmultiline\ntext\nfrom\ntoybox\tcommand.\b" "" ""
+testing "printf '%5d%4d' 1 21 321 4321 54321" \
+  "printf '%5d%4d' 1 21 321 4321 54321" "    1  21  321432154321   0" "" ""
+testing "printf '%c %c' 78 79" "printf '%c %c' 78 79" "7 7" "" ""
+testing "printf '%d %d' 78 79" "printf '%d %d' 78 79" "78 79" "" ""
+testing "printf '%f %f' 78 79" "printf '%f %f' 78 79" \
+  "78.000000 79.000000" "" ""
+testing "printf 'f f' 78 79" "printf 'f f' 78 79" "f f" "" ""
+testing "printf '%i %i' 78 79" "printf '%i %i' 78 79" "78 79" "" ""
+testing "printf '%o %o' 78 79" "printf '%o %o' 78 79" "116 117" "" ""
+testing "printf '%u %u' 78 79" "printf '%u %u' 78 79" "78 79" "" ""
+testing "printf '%u %u' -1 -2" "printf '%u %u' -1 -2" \
+  "18446744073709551615 18446744073709551614" "" ""
+testing "printf '%x %X' 78 79" "printf '%x %X' 78 79" "4e 4F" "" ""
+testing "printf '%g %G' 78 79" "printf '%g %G' 78 79" "78 79" "" ""
+testing "printf '%s %s' 78 79" "printf '%s %s' 78 79" "78 79" "" ""
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/test/renice.test	Thu Jun 26 07:25:20 2014 -0500
@@ -0,0 +1,110 @@
+#!/bin/bash
+
+# Copyright 2013 Robin Mittal <robinmittal.it@gmail.com>
+# Copyright 2013 Divya Kothari <divya.s.kothari@gmail.com>
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+
+fun_nice_val() 
+{
+  for each_proc in $@
+  do
+    echo `awk '{ print $18 }' /proc/${each_proc}/stat`
+  done
+}
+
+# creating processes as a test data
+yes >/dev/null &
+proc1=$!
+yes >/dev/null &
+proc2=$!
+yes >/dev/null &
+proc3=$!
+yes >/dev/null &
+proc4=$!
+yes >/dev/null &
+proc5=$!
+
+n_val1=`fun_nice_val $proc1`
+n_val2=`fun_nice_val $proc2`
+n_val3=`fun_nice_val $proc3`
+n_val4=`fun_nice_val $proc4`
+n_val5=`fun_nice_val $proc5`
+
+# Redirecting errors to /dev/null
+arg="2>/dev/null"
+
+for n_v in "-1" "1"
+do
+  for n_o in "" " -p"
+  do
+    nice_val1=$((`fun_nice_val $proc1` + $n_v))
+    nice_val2=$((`fun_nice_val $proc2` + $n_v))
+    nice_val3=$((`fun_nice_val $proc3` + $n_v))
+    nice_val4=$((`fun_nice_val $proc4` + $n_v))
+    nice_val5=$((`fun_nice_val $proc5` + $n_v))
+    testing "renice with -n=$n_v and with$n_o multiple_pids" \
+      "renice -n $n_v$n_o $proc1 $proc2 $proc3 $proc4 $proc5 &&
+       fun_nice_val $proc1 $proc2 $proc3 $proc4 $proc5" \
+      "$nice_val1\n$nice_val2\n$nice_val3\n$nice_val4\n$nice_val5\n" "" ""
+  
+    nice_val1=$((`fun_nice_val $proc1` + $n_v))
+    nice_val2=$((`fun_nice_val $proc2` + $n_v))
+    nice_val3=$((`fun_nice_val $proc3` + $n_v))
+    nice_val4=$((`fun_nice_val $proc4` + $n_v))
+    nice_val5=$((`fun_nice_val $proc5` + $n_v))
+    testing "renice with -n=$n_v and with$n_o multiple_pids (some invalid)" \
+      "renice -n $n_v$n_o $proc1 $proc2 88888 99999 $proc3 $proc4 $proc5 $arg ||
+       fun_nice_val $proc1 $proc2 $proc3 $proc4 $proc5" \
+      "$nice_val1\n$nice_val2\n$nice_val3\n$nice_val4\n$nice_val5\n" "" ""
+  done
+done
+
+# Starting Boundary Test Here .. 
+loop_cnt=2
+echo -n "TEST: Boundary value test for Id($proc1)..[old_nice_val/new_nice_val]:"
+cnt=0
+n_val=1
+while [ $cnt -gt -1 ]
+do
+  old_nice_val=`fun_nice_val $proc1`
+  new_nice_val=`renice -n $n_val $proc1 >/dev/null 2>&1 && fun_nice_val $proc1`
+  echo -n "[$old_nice_val/$new_nice_val],"
+  if [ $old_nice_val -eq 39 -a $old_nice_val -eq $new_nice_val ]
+  then
+    echo -n " [Equals 39,doing -1] "
+    n_val="-1"
+  elif [ $old_nice_val -eq 0 -a $old_nice_val -eq $new_nice_val ]
+  then
+    echo -n " [Equals 0,doing +1] "
+    n_val="1"
+  elif [ $new_nice_val -gt 39 -o $new_nice_val -lt 0 ]
+  then
+    echo " [Test Fail] "
+    echo "FAIL: renice with step 1 ($proc1) (boundary value)"
+    cnt="-1"
+  elif [ $new_nice_val -eq $n_val1 -a $new_nice_val -eq $(($old_nice_val+1)) ]
+  then
+    cnt=$(($cnt + 1))
+    if [ $cnt -eq $loop_cnt ]
+    then
+      echo " [Test Pass] "
+      echo "PASS: renice with step 1 ($proc1) (boundary value)"
+      cnt="-1"
+    fi
+  else
+    dif=`echo $(($new_nice_val-$old_nice_val))`
+    dif=`echo ${dif/-}`
+    if [ $dif -ne 1 ]
+    then
+      echo " [Test Fail] "
+      echo "FAIL: renice with step 1 ($proc1) (boundary value)"
+      cnt="-1"
+    fi
+  fi
+done
+# Boundary test End
+
+killall yes >/dev/null 2>&1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/test/rm.test	Thu Jun 26 07:25:20 2014 -0500
@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Copyright 2013 Robin Mittal <robinmittal.it@gmail.com>
+# Copyright 2013 Divya Kothari <divya.s.kothari@gmail.com>
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+
+echo "abcdefghijklmnopqrstuvwxyz" > file.txt
+testing "Remove text-file" "rm file.txt && [ ! -e file.txt ] && echo 'yes'" "yes\n" "" ""
+rm -f file*
+
+mkdir dir
+testing "Remove empty directory" "rm -r dir && [ ! -d dir ] && echo 'yes'" "yes\n" "" ""
+rm -rf dir
+
+echo "abcdefghijklmnopqrstuvwxyz" > file.txt && chmod 000 file.txt
+testing "Remove text file(mode 000)" "rm -f file.txt && [ ! -e file.txt ] && echo 'yes'" \
+  "yes\n" "" ""
+rm -f file*
+
+touch file1.txt file2.txt
+mkdir dir1 dir2
+testing "rm -r (multiple files and dirs)" \
+  "rm -r file1.txt file2.txt dir1 dir2 2>/dev/null &&
+   [ ! -e file1.txt -a ! -e file2.txt -a ! -d dir1 -a ! -d dir2 ] && echo 'yes'" \
+  "yes\n" "" ""
+rm -rf file* dir*
+
+touch file1.txt file2.txt
+mkdir dir1 dir2
+testing "rm -rf (present + missing files and dirs)" \
+  "rm -rf file1.txt file2.txt file3.txt dir1 dir2 dir3 2>/dev/null &&
+  [ ! -e file1.txt -a ! -e file2.txt -a ! -d dir1 -a ! -d dir2 ] && echo 'yes'" \
+  "yes\n" "" ""
+rm -rf file* dir*
+
+# testing with nested dirs.
+mkdir -p dir1/dir2/dir3 dir1/dir2/dir4
+touch dir1/file1.txt dir1/dir2/file2.txt dir1/dir2/dir3/file3.txt
+testing "rm -r nested_dir" "rm -r dir1/dir2/ 2>/dev/null &&
+  [ -d dir1 -a -f dir1/file1.txt -a ! -d dir1/dir2 ] && echo 'yes'" \
+  "yes\n" "" ""
+rm -rf dir*
+