source: branches/3.2/mindi-busybox/testsuite/testing.sh @ 3232

Last change on this file since 3232 was 3232, checked in by bruno, 6 years ago
  • Update mindi-busybox to 1.21.1
  • Property svn:executable set to *
File size: 3.9 KB
Line 
1# Simple test harness infrastructure 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 "optional"
8# and a couple more...
9
10# The following environment variables may be set to enable optional behavior
11# in "testing":
12#    VERBOSE - Print the diff -u of each failed test case.
13#    DEBUG - Enable command tracing.
14#    SKIP - do not perform this test (this is set by "optional")
15#
16# The "testing" function takes five arguments:
17#   $1) Test description
18#   $2) Command(s) to run. May have pipes, redirects, etc
19#   $3) Expected result on stdout
20#   $4) Data to be written to file "input"
21#   $5) Data to be written to stdin
22#
23# The exit value of testing is the exit value of $2 it ran.
24#
25# The environment variable "FAILCOUNT" contains a cumulative total of the
26# number of failed tests.
27
28# The "optional" function is used to skip certain tests, ala:
29#   optional FEATURE_THINGY
30#
31# The "optional" function checks the environment variable "OPTIONFLAGS",
32# which is either empty (in which case it always clears SKIP) or
33# else contains a colon-separated list of features (in which case the function
34# clears SKIP if the flag was found, or sets it to 1 if the flag was not found).
35
36export FAILCOUNT=0
37export SKIP=
38
39# Helper for helpers. Oh my...
40
41test x"$ECHO" != x"" || {
42    ECHO="echo"
43    test x"`echo -ne`" = x"" || {
44        # Compile and use a replacement 'echo' which understands -e -n
45        ECHO="$PWD/echo-ne"
46        test -x "$ECHO" || {
47            gcc -Os -o "$ECHO" ../scripts/echo.c || exit 1
48        }
49    }
50    export ECHO
51}
52
53# Helper functions
54
55optional()
56{
57    SKIP=
58    while test "$1"; do
59        if test x"${OPTIONFLAGS/*:$1:*/y}" != x"y"; then
60            SKIP=1
61            return
62        fi
63        shift
64    done
65}
66
67# The testing function
68
69testing()
70{
71  NAME="$1"
72  [ -n "$1" ] || NAME="$2"
73
74  if [ $# -ne 5 ]
75  then
76    echo "Test $NAME has wrong number of arguments: $# (must be 5)" >&2
77    exit 1
78  fi
79
80  [ -z "$DEBUG" ] || set -x
81
82  if [ -n "$SKIP" ]
83  then
84    echo "SKIPPED: $NAME"
85    return 0
86  fi
87
88  $ECHO -ne "$3" > expected
89  $ECHO -ne "$4" > input
90  [ -z "$VERBOSE" ] || echo ======================
91  [ -z "$VERBOSE" ] || echo "echo -ne '$4' >input"
92  [ -z "$VERBOSE" ] || echo "echo -ne '$5' | $2"
93  $ECHO -ne "$5" | eval "$2" > actual
94  RETVAL=$?
95
96  if cmp expected actual >/dev/null 2>/dev/null
97  then
98    echo "PASS: $NAME"
99  else
100    FAILCOUNT=$(($FAILCOUNT + 1))
101    echo "FAIL: $NAME"
102    [ -z "$VERBOSE" ] || diff -u expected actual
103  fi
104  rm -f input expected actual
105
106  [ -z "$DEBUG" ] || set +x
107
108  return $RETVAL
109}
110
111# Recursively grab an executable and all the libraries needed to run it.
112# Source paths beginning with / will be copied into destpath, otherwise
113# the file is assumed to already be there and only its library dependencies
114# are copied.
115
116mkchroot()
117{
118  [ $# -lt 2 ] && return
119
120  $ECHO -n .
121
122  dest=$1
123  shift
124  for i in "$@"
125  do
126    #bashism: [ "${i:0:1}" == "/" ] || i=$(which $i)
127    i=$(which $i) # no-op for /bin/prog
128    [ -f "$dest/$i" ] && continue
129    if [ -e "$i" ]
130    then
131      d=`echo "$i" | grep -o '.*/'` &&
132      mkdir -p "$dest/$d" &&
133      cat "$i" > "$dest/$i" &&
134      chmod +x "$dest/$i"
135    else
136      echo "Not found: $i"
137    fi
138    mkchroot "$dest" $(ldd "$i" | egrep -o '/.* ')
139  done
140}
141
142# Set up a chroot environment and run commands within it.
143# Needed commands listed on command line
144# Script fed to stdin.
145
146dochroot()
147{
148  mkdir tmpdir4chroot
149  mount -t ramfs tmpdir4chroot tmpdir4chroot
150  mkdir -p tmpdir4chroot/{etc,sys,proc,tmp,dev}
151  cp -L testing.sh tmpdir4chroot
152
153  # Copy utilities from command line arguments
154
155  $ECHO -n "Setup chroot"
156  mkchroot tmpdir4chroot $*
157  echo
158
159  mknod tmpdir4chroot/dev/tty c 5 0
160  mknod tmpdir4chroot/dev/null c 1 3
161  mknod tmpdir4chroot/dev/zero c 1 5
162
163  # Copy script from stdin
164
165  cat > tmpdir4chroot/test.sh
166  chmod +x tmpdir4chroot/test.sh
167  chroot tmpdir4chroot /test.sh
168  umount -l tmpdir4chroot
169  rmdir tmpdir4chroot
170}
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