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	# 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