busybox/testsuite/testing.sh

# Simple test harness infrastructurei for BusyBox
#
# Copyright 2005 by Rob Landley
#
# License is GPLv2, see LICENSE in the busybox tarball for full license text.

# This file defines two functions, "testing" and "optionflag"

# The following environment variables may be set to enable optional behavior
# in "testing":
#    VERBOSE - Print the diff -u of each failed test case.
#    DEBUG - Enable command tracing.
#    SKIP - do not perform this test (this is set by "optionflag")
#
# The "testing" function takes five arguments:
#	$1) Description to display when running command
#	$2) Command line arguments to command
#	$3) Expected result (on stdout)
#	$4) Data written to file "input"
#	$5) Data written to stdin
#
# The exit value of testing is the exit value of the command it ran.
#
# The environment variable "FAILCOUNT" contains a cumulative total of the
# number of failed tests.

# The "optional" function is used to skip certain tests, ala:
#   optionflag CONFIG_FEATURE_THINGY
#
# The "optional" function checks the environment variable "OPTIONFLAGS",
# which is either empty (in which case it always clears SKIP) or
# else contains a colon-separated list of features (in which case the function
# clears SKIP if the flag was found, or sets it to 1 if the flag was not found).

export FAILCOUNT=0
export SKIP=

# Helper functions

optional()
{
  option=`echo "$OPTIONFLAGS" | egrep "(^|:)$1(:|\$)"`
  # Not set?
  if [ -z "$1" ] || [ -z "$OPTIONFLAGS" ] || [ ${#option} -ne 0 ]
  then
    SKIP=""
    return
  fi
  SKIP=1
}

# The testing function

testing ()
{
  NAME="$1"
  [ -z "$1" ] && NAME=$2

  if [ $# -ne 5 ]
  then
    echo "Test $NAME has the wrong number of arguments ($# $*)" >&2
    exit
  fi

  [ -n "$DEBUG" ] && set -x

  if [ -n "$SKIP" ]
  then
    echo "SKIPPED: $NAME"
    return 0
  fi

  echo -ne "$3" > expected
  echo -ne "$4" > input
  [ -z "$VERBOSE" ] || echo "echo '$5' | $2"
  echo -ne "$5" | eval "$2" > actual
  RETVAL=$?

  cmp expected actual > /dev/null
  if [ $? -ne 0 ]
  then
    FAILCOUNT=$[$FAILCOUNT+1]
    echo "FAIL: $NAME"
    [ -n "$VERBOSE" ] && diff -u expected actual
  else
    echo "PASS: $NAME"
  fi
  rm -f input expected actual

  [ -n "$DEBUG" ] && set +x

  return $RETVAL
}

# Recursively grab an executable and all the libraries needed to run it.
# Source paths beginning with / will be copied into destpath, otherwise
# the file is assumed to already be there and only its library dependencies
# are copied.

function mkchroot
{
  [ $# -lt 2 ] && return

  echo -n .

  dest=$1
  shift
  for i in "$@"
  do
    [ "${i:0:1}" == "/" ] || i=$(which $i)
    [ -f "$dest/$i" ] && continue
    if [ -e "$i" ]
    then
      d=`echo "$i" | grep -o '.*/'` &&
      mkdir -p "$dest/$d" &&
      cat "$i" > "$dest/$i" &&
      chmod +x "$dest/$i"
    else
      echo "Not found: $i"
    fi
    mkchroot "$dest" $(ldd "$i" | egrep -o '/.* ')
  done
}

# Set up a chroot environment and run commands within it.
# Needed commands listed on command line
# Script fed to stdin.

function dochroot
{
  mkdir tmpdir4chroot
  mount -t ramfs tmpdir4chroot tmpdir4chroot
  mkdir -p tmpdir4chroot/{etc,sys,proc,tmp,dev}
  cp -L testing.sh tmpdir4chroot

  # Copy utilities from command line arguments

  echo -n "Setup chroot"
  mkchroot tmpdir4chroot $*
  echo

  mknod tmpdir4chroot/dev/tty c 5 0
  mknod tmpdir4chroot/dev/null c 1 3
  mknod tmpdir4chroot/dev/zero c 1 5

  # Copy script from stdin

  cat > tmpdir4chroot/test.sh
  chmod +x tmpdir4chroot/test.sh
  chroot tmpdir4chroot /test.sh
  umount -l tmpdir4chroot
  rmdir tmpdir4chroot
}

1	niro	532	# Simple test harness infrastructurei for BusyBox
2			#
3			# Copyright 2005 by Rob Landley
4			#
5			# License is GPLv2, see LICENSE in the busybox tarball for full license text.
6
7			# This file defines two functions, "testing" and "optionflag"
8
9			# The following environment variables may be set to enable optional behavior
10			# in "testing":
11			# VERBOSE - Print the diff -u of each failed test case.
12			# DEBUG - Enable command tracing.
13			# SKIP - do not perform this test (this is set by "optionflag")
14			#
15			# The "testing" function takes five arguments:
16			# $1) Description to display when running command
17			# $2) Command line arguments to command
18			# $3) Expected result (on stdout)
19			# $4) Data written to file "input"
20			# $5) Data written to stdin
21			#
22			# The exit value of testing is the exit value of the command it ran.
23			#
24			# The environment variable "FAILCOUNT" contains a cumulative total of the
25			# number of failed tests.
26
27			# The "optional" function is used to skip certain tests, ala:
28			# optionflag CONFIG_FEATURE_THINGY
29			#
30			# The "optional" function checks the environment variable "OPTIONFLAGS",
31			# which is either empty (in which case it always clears SKIP) or
32			# else contains a colon-separated list of features (in which case the function
33			# clears SKIP if the flag was found, or sets it to 1 if the flag was not found).
34
35			export FAILCOUNT=0
36			export SKIP=
37
38			# Helper functions
39
40			optional()
41			{
42			option=`echo "$OPTIONFLAGS" \| egrep "(^\|:)$1(:\|\$)"`
43			# Not set?
44			if [ -z "$1" ] \|\| [ -z "$OPTIONFLAGS" ] \|\| [ ${#option} -ne 0 ]
45			then
46			SKIP=""
47			return
48			fi
49			SKIP=1
50			}
51
52			# The testing function
53
54			testing ()
55			{
56			NAME="$1"
57			[ -z "$1" ] && NAME=$2
58
59			if [ $# -ne 5 ]
60			then
61			echo "Test $NAME has the wrong number of arguments ($# $*)" >&2
62			exit
63			fi
64
65			[ -n "$DEBUG" ] && set -x
66
67			if [ -n "$SKIP" ]
68			then
69			echo "SKIPPED: $NAME"
70			return 0
71			fi
72
73			echo -ne "$3" > expected
74			echo -ne "$4" > input
75			[ -z "$VERBOSE" ] \|\| echo "echo '$5' \| $2"
76			echo -ne "$5" \| eval "$2" > actual
77			RETVAL=$?
78
79			cmp expected actual > /dev/null
80			if [ $? -ne 0 ]
81			then
82			FAILCOUNT=$[$FAILCOUNT+1]
83			echo "FAIL: $NAME"
84			[ -n "$VERBOSE" ] && diff -u expected actual
85			else
86			echo "PASS: $NAME"
87			fi
88			rm -f input expected actual
89
90			[ -n "$DEBUG" ] && set +x
91
92			return $RETVAL
93			}
94
95			# Recursively grab an executable and all the libraries needed to run it.
96			# Source paths beginning with / will be copied into destpath, otherwise
97			# the file is assumed to already be there and only its library dependencies
98			# are copied.
99
100			function mkchroot
101			{
102			[ $# -lt 2 ] && return
103
104			echo -n .
105
106			dest=$1
107			shift
108			for i in "$@"
109			do
110			[ "${i:0:1}" == "/" ] \|\| i=$(which $i)
111			[ -f "$dest/$i" ] && continue
112			if [ -e "$i" ]
113			then
114			d=`echo "$i" \| grep -o '.*/'` &&
115			mkdir -p "$dest/$d" &&
116			cat "$i" > "$dest/$i" &&
117			chmod +x "$dest/$i"
118			else
119			echo "Not found: $i"
120			fi
121			mkchroot "$dest" $(ldd "$i" \| egrep -o '/.* ')
122			done
123			}
124
125			# Set up a chroot environment and run commands within it.
126			# Needed commands listed on command line
127			# Script fed to stdin.
128
129			function dochroot
130			{
131			mkdir tmpdir4chroot
132			mount -t ramfs tmpdir4chroot tmpdir4chroot
133			mkdir -p tmpdir4chroot/{etc,sys,proc,tmp,dev}
134			cp -L testing.sh tmpdir4chroot
135
136			# Copy utilities from command line arguments
137
138			echo -n "Setup chroot"
139			mkchroot tmpdir4chroot $*
140			echo
141
142			mknod tmpdir4chroot/dev/tty c 5 0
143			mknod tmpdir4chroot/dev/null c 1 3
144			mknod tmpdir4chroot/dev/zero c 1 5
145
146			# Copy script from stdin
147
148			cat > tmpdir4chroot/test.sh
149			chmod +x tmpdir4chroot/test.sh
150			chroot tmpdir4chroot /test.sh
151			umount -l tmpdir4chroot
152			rmdir tmpdir4chroot
153			}
154