[bug-diffutils] [PATCH 01/19] tests: add the first script; hook up gnulib-tests

[Jim Meyering]

From: Jim Meyering <address@hidden>

* configure.ac (AC_CONFIG_FILES): Add tests/Makefile and
gnulib-tests/Makefile.
* tests/help-version: New file, from coreutils.
* tests/test-lib.sh: Likewise.
* tests/Makefile.am: New file, from gzip.
* Makefile.am (SUBDIRS): Add tests and gnulib-tests.
* tests/t-local.sh: New, empty(for now) file.
---
 .gitignore         |    2 +
 Makefile.am        |    2 +-
 configure.ac       |   13 ++-
 tests/Makefile.am  |   54 +++++++
 tests/help-version |  211 +++++++++++++++++++++++++++
 tests/test-lib.sh  |  408 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 686 insertions(+), 4 deletions(-)
 create mode 100644 tests/Makefile.am
 create mode 100755 tests/help-version
 create mode 100644 tests/t-local.sh
 create mode 100644 tests/test-lib.sh

diff --git a/.gitignore b/.gitignore
index e0f99dd..78b4daa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,6 +41,7 @@ Makefile
 Makefile.in
 autom4te.cache
 build-aux
+gnulib-tests/*.log
 man/*.1
 po/*.gmo
 po/*.po
@@ -49,3 +50,4 @@ src/diff
 src/diff3
 src/paths.h
 src/sdiff
+tests/*.log
diff --git a/Makefile.am b/Makefile.am
index ec51c32..be74dae 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -17,7 +17,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

 EXTRA_DIST = bootstrap exgettext ChangeLog-2008
-SUBDIRS = lib ms src doc man po
+SUBDIRS = lib src tests doc man po ms gnulib-tests

 ACLOCAL_AMFLAGS = -I m4

diff --git a/configure.ac b/configure.ac
index 05000e2..697bb27 100644
--- a/configure.ac
+++ b/configure.ac
@@ -67,7 +67,14 @@ AM_GNU_GETTEXT([external], [need-ngettext])
 AM_GNU_GETTEXT_VERSION([0.17])
 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"

-AC_CONFIG_FILES([Makefile doc/Makefile \
-                lib/Makefile man/Makefile \
-                ms/Makefile po/Makefile.in src/Makefile])
+AC_CONFIG_FILES([
+  Makefile doc/Makefile
+  lib/Makefile
+  src/Makefile
+  tests/Makefile
+  gnulib-tests/Makefile
+  man/Makefile
+  po/Makefile.in
+  ms/Makefile
+])
 AC_OUTPUT
diff --git a/tests/Makefile.am b/tests/Makefile.am
new file mode 100644
index 0000000..daec940
--- /dev/null
+++ b/tests/Makefile.am
@@ -0,0 +1,54 @@
+TESTS = \
+  help-version
+
+EXTRA_DIST = \
+  $(TESTS) test-lib.sh t-local.sh
+
+# Note that the first lines are statements.  They ensure that environment
+# variables that can perturb tests are unset or set to expected values.
+# The rest are envvar settings that propagate build-related Makefile
+# variables to test scripts.
+TESTS_ENVIRONMENT =                            \
+  tmp__=$$TMPDIR; test -d "$$tmp__" || tmp__=.;        \
+  TMPDIR=$$tmp__; export TMPDIR;               \
+  exec 9>&2;                                   \
+  shell_or_perl_() {                           \
+    if grep '^\#!/usr/bin/perl' "$$1" > /dev/null; then                        
\
+      if $(PERL) -e 'use warnings' > /dev/null 2>&1; then              \
+       grep '^\#!/usr/bin/perl -T' "$$1" > /dev/null && T_=T || T_=;   \
+        $(PERL) -w$$T_ -I$(srcdir) -MCoreutils                         \
+             -M"CuTmpdir qw($$f)" -- "$$1";    \
+      else                                     \
+       echo 1>&2 "$$tst: configure did not find a usable version of Perl," \
+         "so skipping this test";              \
+       (exit 77);                              \
+      fi;                                      \
+    else                                       \
+      $(SHELL) "$$1";                          \
+    fi;                                                \
+  };                                           \
+  export                                       \
+  abs_top_builddir='$(abs_top_builddir)'       \
+  abs_top_srcdir='$(abs_top_srcdir)'           \
+  abs_srcdir='$(abs_srcdir)'                   \
+  built_programs="`$(built_programs)`"         \
+  srcdir='$(srcdir)'                           \
+  top_srcdir='$(top_srcdir)'                   \
+  CC='$(CC)'                                   \
+  MAKE=$(MAKE)                                 \
+  PACKAGE_BUGREPORT='$(PACKAGE_BUGREPORT)'     \
+  PACKAGE_VERSION=$(PACKAGE_VERSION)           \
+  CONFIG_HEADER='$(abs_top_builddir)/lib/config.h' \
+  ENABLE_DEVICE_MAPPER=$(ENABLE_DEVICE_MAPPER) \
+  PERL='$(PERL)'                               \
+  PREFERABLY_POSIX_SHELL='$(PREFERABLY_POSIX_SHELL)' \
+  REPLACE_GETCWD=$(REPLACE_GETCWD)             \
+  PATH='$(abs_top_builddir)/src$(PATH_SEPARATOR)'"$$PATH" \
+  ; shell_or_perl_
+
+built_programs =                                                       \
+  echo 'spy:;@echo $$(PROGRAMS)'                                       \
+    | MAKEFLAGS= $(MAKE) -s -C $(builddir)/../src -f Makefile -f - spy \
+    | fmt -1 | sort -u
+
+VERBOSE = yes
diff --git a/tests/help-version b/tests/help-version
new file mode 100755
index 0000000..2ab0865
--- /dev/null
+++ b/tests/help-version
@@ -0,0 +1,211 @@
+#! /bin/sh
+# Make sure all these programs work properly
+# when invoked with --help or --version.
+
+# Copyright (C) 2000-2009 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+test "$VERBOSE" = yes && set -x
+
+# Ensure that $SHELL is set to *some* value and exported.
+# This is required for dircolors, which would fail e.g., when
+# invoked via debuild (which removes SHELL from the environment).
+test "x$SHELL" = x && SHELL=/bin/sh
+export SHELL
+
+. $srcdir/test-lib.sh
+
+expected_failure_status_chroot=125
+expected_failure_status_env=125
+expected_failure_status_nice=125
+expected_failure_status_nohup=125
+expected_failure_status_stdbuf=125
+expected_failure_status_su=125
+expected_failure_status_timeout=125
+expected_failure_status_printenv=2
+expected_failure_status_tty=3
+expected_failure_status_sort=2
+expected_failure_status_expr=3
+expected_failure_status_lbracket=2
+expected_failure_status_dir=2
+expected_failure_status_ls=2
+expected_failure_status_vdir=2
+
+expected_failure_status_cmp=2
+expected_failure_status_sdiff=2
+expected_failure_status_diff3=2
+expected_failure_status_diff=2
+
+test "$built_programs" \
+  || { echo "$this_test: no programs built!?!" 1>&2; Exit 1; }
+
+for lang in C fr da; do
+  for i in $built_programs; do
+
+    # Skip `test'; it doesn't accept --help or --version.
+    test $i = test && continue;
+
+    # false fails even when invoked with --help or --version.
+    if test $i = false; then
+      env LC_MESSAGES=$lang $i --help >/dev/null && fail=1
+      env LC_MESSAGES=$lang $i --version >/dev/null && fail=1
+      continue
+    fi
+
+    # The just-built install executable is always named `ginstall'.
+    test $i = install && i=ginstall
+
+    # Make sure they exit successfully, under normal conditions.
+    env $i --help    > h-$i     || fail=1
+    env $i --version >/dev/null || fail=1
+
+    # Make sure they mention the bug-reporting address in --help output.
+    grep "$PACKAGE_BUGREPORT" h-$i > /dev/null || fail=1
+    rm -f h-$i
+
+    # Make sure they fail upon `disk full' error.
+    if test -w /dev/full && test -c /dev/full; then
+      env $i --help    >/dev/full 2>/dev/null && fail=1
+      env $i --version >/dev/full 2>/dev/null && fail=1
+      status=$?
+      test $i = [ && prog=lbracket || prog=$i
+      eval "expected=\$expected_failure_status_$prog"
+      test x$expected = x && expected=1
+      if test $status = $expected; then
+        : # ok
+      else
+        fail=1
+        echo "*** $i: bad exit status \`$status' (expected $expected)," 1>&2
+        echo "  with --help or --version output redirected to /dev/full" 1>&2
+      fi
+    fi
+  done
+done
+
+tmp=tmp-$$
+tmp_in=in-$$
+tmp_in2=in2-$$
+tmp_dir=dir-$$
+tmp_out=out-$$
+mkdir $tmp || fail=1
+cd $tmp || fail=1
+
+comm_args="$tmp_in $tmp_in"
+csplit_args="$tmp_in //"
+cut_args='-f 1'
+join_args="$tmp_in $tmp_in"
+tr_args='a a'
+
+chmod_args="a+x $tmp_in"
+# Punt on these.
+chgrp_args=--version
+chown_args=--version
+mkfifo_args=--version
+mknod_args=--version
+# Punt on uptime, since it fails (e.g., failing to get boot time)
+# on some systems, and we shouldn't let that stop `make check'.
+uptime_args=--version
+
+# Create a file in the current directory, not in $TMPDIR.
+mktemp_args=mktemp.XXXX
+
+cmp_args="$tmp_in $tmp_in2"
+
+# Tell dd not to print the line with transfer rate and total.
+# The transfer rate would vary between runs.
+dd_args=status=noxfer
+
+diff_args="$tmp_in $tmp_in2"
+sdiff_args="$tmp_in $tmp_in2"
+diff3_args="$tmp_in $tmp_in2 $tmp_in2"
+cp_args="$tmp_in $tmp_in2"
+ln_args="$tmp_in ln-target"
+ginstall_args="$tmp_in $tmp_in2"
+mv_args="$tmp_in $tmp_in2"
+mkdir_args=$tmp_dir/subdir
+rmdir_args=$tmp_dir
+rm_args=$tmp_in
+shred_args=$tmp_in
+touch_args=$tmp_in2
+truncate_args="--reference=$tmp_in $tmp_in2"
+
+basename_args=$tmp_in
+dirname_args=$tmp_in
+expr_args=foo
+
+# Punt, in case GNU `id' hasn't been installed yet.
+groups_args=--version
+
+pathchk_args=$tmp_in
+yes_args=--version
+logname_args=--version
+nohup_args=--version
+printf_args=foo
+seq_args=10
+sleep_args=0
+su_args=--version
+stdbuf_args="-oL true"
+timeout_args=--version
+
+# I'd rather not run sync, since it spins up disks that I've
+# deliberately caused to spin down (but not unmounted).
+sync_args=--version
+
+test_args=foo
+
+# This is necessary in the unusual event that there is
+# no valid entry in /etc/mtab.
+df_args=/
+
+# This is necessary in the unusual event that getpwuid (getuid ()) fails.
+id_args=-u
+
+# Use env to avoid invoking built-in sleep of Solaris 11's /bin/sh.
+env sleep 10m &
+kill_args=$!
+
+link_args="$tmp_in link-target"
+unlink_args=$tmp_in
+
+ln -s . slink
+readlink_args=slink
+
+stat_args=$tmp_in
+unlink_args=$tmp_in
+lbracket_args=": ]"
+
+# Ensure that each program "works" (exits successfully) when doing
+# something more than --help or --version.
+for i in $built_programs; do
+  # Skip these.
+  case $i in chroot|stty|tty|false|chcon|runcon) continue;; esac
+
+  rm -rf $tmp_in $tmp_in2 $tmp_dir $tmp_out
+  echo > $tmp_in
+  echo > $tmp_in2
+  mkdir $tmp_dir
+  # echo ================== $i
+  test $i = [ && prog=lbracket || prog=$i
+  eval "args=\$${prog}_args"
+  if env $i $args < $tmp_in > $tmp_out; then
+    : # ok
+  else
+    echo FAIL: $i
+    fail=1
+  fi
+  rm -rf $tmp_in $tmp_in2 $tmp_out $tmp_dir
+done
+
+Exit $fail
diff --git a/tests/t-local.sh b/tests/t-local.sh
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test-lib.sh b/tests/test-lib.sh
new file mode 100644
index 0000000..b39d06c
--- /dev/null
+++ b/tests/test-lib.sh
@@ -0,0 +1,408 @@
+# source this file; set up for tests
+
+# Copyright (C) 2009 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Skip this test if the shell lacks support for functions.
+unset function_test
+eval 'function_test() { return 11; }; function_test'
+if test $? != 11; then
+  echo "$0: /bin/sh lacks support for functions; skipping this test." 1>&2
+  Exit 77
+fi
+
+skip_test_()
+{
+  echo "$0: skipping test: $@" | head -1 1>&9
+  echo "$0: skipping test: $@" 1>&2
+  Exit 77
+}
+
+getlimits_()
+{
+    eval $(getlimits)
+    test "$INT_MAX" ||
+    error_ "Error running getlimits"
+}
+
+require_acl_()
+{
+  getfacl --version < /dev/null > /dev/null 2>&1 \
+    && setfacl --version < /dev/null > /dev/null 2>&1 \
+      || skip_test_ "This test requires getfacl and setfacl."
+
+  id -u bin > /dev/null 2>&1 \
+    || skip_test_ "This test requires a local user named bin."
+}
+
+# Skip this test if we're not in SELinux "enforcing" mode.
+require_selinux_enforcing_()
+{
+  test "$(getenforce)" = Enforcing \
+    || skip_test_ "This test is useful only with SELinux in Enforcing mode."
+}
+
+
+require_openat_support_()
+{
+  # Skip this test if your system has neither the openat-style functions
+  # nor /proc/self/fd support with which to emulate them.
+  test -z "$CONFIG_HEADER" \
+    && skip_test_ 'internal error: CONFIG_HEADER not defined'
+
+  _skip=yes
+  grep '^#define HAVE_OPENAT' "$CONFIG_HEADER" > /dev/null && _skip=no
+  test -d /proc/self/fd && _skip=no
+  if test $_skip = yes; then
+    skip_test_ 'this system lacks openat support'
+  fi
+}
+
+require_ulimit_()
+{
+  ulimit_works=yes
+  # Expect to be able to exec a program in 10MB of virtual memory,
+  # but not in 20KB.  I chose "date".  It must not be a shell built-in
+  # function, so you can't use echo, printf, true, etc.
+  # Of course, in coreutils, I could use $top_builddir/src/true,
+  # but this should be able to work for other projects, too.
+  ( ulimit -v 10000; date ) > /dev/null 2>&1 || ulimit_works=no
+  ( ulimit -v 20;    date ) > /dev/null 2>&1 && ulimit_works=no
+
+  test $ulimit_works = no \
+    && skip_test_ "this shell lacks ulimit support"
+}
+
+require_readable_root_()
+{
+  test -r / || skip_test_ "/ is not readable"
+}
+
+# Skip the current test if strace is not available or doesn't work
+# with the named syscall.  Usage: require_strace_ unlink
+require_strace_()
+{
+  test $# = 1 || framework_failure
+
+  strace -V < /dev/null > /dev/null 2>&1 ||
+    skip_test_ 'no strace program'
+
+  strace -qe "$1" echo > /dev/null 2>&1 ||
+    skip_test_ 'strace -qe "'"$1"'" does not work'
+}
+
+# Require a controlling input `terminal'.
+require_controlling_input_terminal_()
+{
+  tty -s || have_input_tty=no
+  test -t 0 || have_input_tty=no
+  if test "$have_input_tty" = no; then
+    skip_test_ 'requires controlling input terminal
+This test must have a controlling input "terminal", so it may not be
+run via "batch", "at", or "ssh".  On some systems, it may not even be
+run in the background.'
+  fi
+}
+
+require_built_()
+{
+  skip_=no
+  for i in "$@"; do
+    case " $built_programs " in
+      *" $i "*) ;;
+      *) echo "$i: not built" 1>&2; skip_=yes ;;
+    esac
+  done
+
+  test $skip_ = yes && skip_test_ "required program(s) not built"
+}
+
+uid_is_privileged_()
+{
+  # Make sure id -u succeeds.
+  my_uid=$(id -u) \
+    || { echo "$0: cannot run \`id -u'" 1>&2; return 1; }
+
+  # Make sure it gives valid output.
+  case $my_uid in
+    0) ;;
+    *[!0-9]*)
+      echo "$0: invalid output (\`$my_uid') from \`id -u'" 1>&2
+      return 1 ;;
+    *) return 1 ;;
+  esac
+}
+
+get_process_status_()
+{
+  sed -n '/^State:[     ]*\([[:alpha:]]\).*/s//\1/p' /proc/$1/status
+}
+
+# Convert an ls-style permission string, like drwxr----x and -rw-r-x-wx
+# to the equivalent chmod --mode (-m) argument, (=,u=rwx,g=r,o=x and
+# =,u=rw,g=rx,o=wx).  Ignore ACLs.
+rwx_to_mode_()
+{
+  case $# in
+    1) rwx=$1;;
+    *) echo "$0: wrong number of arguments" 1>&2
+      echo "Usage: $0 ls-style-mode-string" 1>&2
+      return;;
+  esac
+
+  case $rwx in
+    [ld-][rwx-][rwx-][rwxsS-][rwx-][rwx-][rwxsS-][rwx-][rwx-][rwxtT-]) ;;
+    [ld-][rwx-][rwx-][rwxsS-][rwx-][rwx-][rwxsS-][rwx-][rwx-][rwxtT-][+.]) ;;
+    *) echo "$0: invalid mode string: $rwx" 1>&2; return;;
+  esac
+
+  # Perform these conversions:
+  # S  s
+  # s  xs
+  # T  t
+  # t  xt
+  # The `T' and `t' ones are only valid for `other'.
+  s='s/S/@/;s/s/x@/;s/@/s/'
+  t='s/T/@/;s/t/x@/;s/@/t/'
+
+  u=`echo $rwx|sed 's/^.\(...\).*/,u=\1/;s/-//g;s/^,u=$//;'$s`
+  g=`echo $rwx|sed 's/^....\(...\).*/,g=\1/;s/-//g;s/^,g=$//;'$s`
+  o=`echo $rwx|sed 's/^.......\(...\).*/,o=\1/;s/-//g;s/^,o=$//;'$s';'$t`
+  echo "=$u$g$o"
+}
+
+skip_if_()
+{
+  case $1 in
+    root) skip_test_ must be run as root ;;
+    non-root) skip_test_ must be run as non-root ;;
+    *) ;;  # FIXME?
+  esac
+}
+
+require_selinux_()
+{
+  case `ls -Zd .` in
+    '? .'|'unlabeled .')
+      skip_test_ "this system (or maybe just" \
+        "the current file system) lacks SELinux support"
+    ;;
+  esac
+}
+
+very_expensive_()
+{
+  if test "$RUN_VERY_EXPENSIVE_TESTS" != yes; then
+    skip_test_ 'very expensive: disabled by default
+This test is very expensive, so it is disabled by default.
+To run it anyway, rerun make check with the RUN_VERY_EXPENSIVE_TESTS
+environment variable set to yes.  E.g.,
+
+  env RUN_VERY_EXPENSIVE_TESTS=yes make check
+'
+  fi
+}
+
+expensive_()
+{
+  if test "$RUN_EXPENSIVE_TESTS" != yes; then
+    skip_test_ 'expensive: disabled by default
+This test is relatively expensive, so it is disabled by default.
+To run it anyway, rerun make check with the RUN_EXPENSIVE_TESTS
+environment variable set to yes.  E.g.,
+
+  env RUN_EXPENSIVE_TESTS=yes make check
+'
+  fi
+}
+
+require_root_()
+{
+  uid_is_privileged_ || skip_test_ "must be run as root"
+  NON_ROOT_USERNAME=${NON_ROOT_USERNAME=nobody}
+  NON_ROOT_GROUP=${NON_ROOT_GROUP=$(id -g $NON_ROOT_USERNAME)}
+}
+
+skip_if_root_() { uid_is_privileged_ && skip_test_ "must be run as non-root"; }
+error_() { echo "$0: $@" 1>&2; Exit 1; }
+framework_failure() { error_ 'failure in testing framework'; }
+
+# Set `groups' to a space-separated list of at least two groups
+# of which the user is a member.
+require_membership_in_two_groups_()
+{
+  test $# = 0 || framework_failure
+
+  groups=${COREUTILS_GROUPS-`(id -G || /usr/xpg4/bin/id -G) 2>/dev/null`}
+  case "$groups" in
+    *' '*) ;;
+    *) skip_test_ 'requires membership in two groups
+this test requires that you be a member of more than one group,
+but running `id -G'\'' either failed or found just one.  If you really
+are a member of at least two groups, then rerun this test with
+COREUTILS_GROUPS set in your environment to the space-separated list
+of group names or numbers.  E.g.,
+
+  env COREUTILS_GROUPS='users cdrom' make check
+
+'
+     ;;
+  esac
+}
+
+# Is /proc/$PID/status supported?
+require_proc_pid_status_()
+{
+    sleep 2 &
+    local pid=$!
+    sleep .5
+    grep '^State:[      ]*[S]' /proc/$pid/status > /dev/null 2>&1 ||
+    skip_test_ "/proc/$pid/status: missing or 'different'"
+    kill $pid
+}
+
+# Does the current (working-dir) file system support sparse files?
+require_sparse_support_()
+{
+  test $# = 0 || framework_failure
+  # Test whether we can create a sparse file.
+  # For example, on Darwin6.5 with a file system of type hfs, it's not 
possible.
+  # NTFS requires 128K before a hole appears in a sparse file.
+  t=sparse.$$
+  dd bs=1 seek=128K of=$t < /dev/null 2> /dev/null
+  set x `du -sk $t`
+  kb_size=$2
+  rm -f $t
+  if test $kb_size -ge 128; then
+    skip_test_ 'this file system does not support sparse files'
+  fi
+}
+
+mkfifo_or_skip_()
+{
+  test $# = 1 || framework_failure
+  if ! mkfifo "$1"; then
+    # Make an exception of this case -- usually we interpret framework-creation
+    # failure as a test failure.  However, in this case, when running on a 
SunOS
+    # system using a disk NFS mounted from OpenBSD, the above fails like this:
+    # mkfifo: cannot make fifo `fifo-10558': Not owner
+    skip_test_ 'NOTICE: unable to create test prerequisites'
+  fi
+}
+
+# Disable the current test if the working directory seems to have
+# the setgid bit set.
+skip_if_setgid_()
+{
+  setgid_tmpdir=setgid-$$
+  (umask 77; mkdir $setgid_tmpdir)
+  perms=$(stat --printf %A $setgid_tmpdir)
+  rmdir $setgid_tmpdir
+  case $perms in
+    drwx------);;
+    drwxr-xr-x);;  # Windows98 + DJGPP 2.03
+    *) skip_test_ 'this directory has the setgid bit set';;
+  esac
+}
+
+skip_if_mcstransd_is_running_()
+{
+  test $# = 0 || framework_failure
+
+  # When mcstransd is running, you'll see only the 3-component
+  # version of file-system context strings.  Detect that,
+  # and if it's running, skip this test.
+  __ctx=$(stat --printf='%C\n' .) || framework_failure
+  case $__ctx in
+    *:*:*:*) ;; # four components is ok
+    *) # anything else probably means mcstransd is running
+        skip_test_ "unexpected context '$__ctx'; turn off mcstransd" ;;
+  esac
+}
+
+# Skip the current test if umask doesn't work as usual.
+# This test should be run in the temporary directory that ends
+# up being removed via the trap commands.
+working_umask_or_skip_()
+{
+  umask 022
+  touch file1 file2
+  chmod 644 file2
+  perms=`ls -l file1 file2 | sed 's/ .*//' | uniq`
+  rm -f file1 file2
+
+  case $perms in
+  *'
+  '*) skip_test_ 'your build directory has unusual umask semantics'
+  esac
+}
+
+# We use a trap below for cleanup.  This requires us to go through
+# hoops to get the right exit status transported through the signal.
+# So use `Exit STATUS' instead of `exit STATUS' inside of the tests.
+# Turn off errexit here so that we don't trip the bug with OSF1/Tru64
+# sh inside this function.
+Exit ()
+{
+  set +e
+  (exit $1)
+  exit $1
+}
+
+test_dir_=$(pwd)
+
+this_test_() { echo "./$0" | sed 's,.*/,,'; }
+this_test=$(this_test_)
+
+# This is a stub function that is run upon trap (upon regular exit and
+# interrupt).  Override it with a per-test function, e.g., to unmount
+# a partition, or to undo any other global state changes.
+cleanup_() { :; }
+
+t_=$(mktemp -d --tmp="$test_dir_" di-$this_test.XXXXXXXXXX)\
+    || error_ "failed to create temporary directory in $test_dir_"
+
+# Eval the following upon cleanup.
+# This is useful if you have more than than one cleanup function,
+# and for encapsulated cleanup functions; append any addition.
+cleanup_eval_=':'
+
+remove_tmp_()
+{
+  __st=$?
+  cleanup_
+  test -n "$cleanup_eval_" && eval "$cleanup_eval_"
+  cd "$test_dir_" && chmod -R u+rwx "$t_" && rm -rf "$t_" && exit $__st
+}
+
+. $srcdir/t-local.sh
+
+# Run each test from within a temporary sub-directory named after the
+# test itself, and arrange to remove it upon exception or normal exit.
+trap remove_tmp_ 0
+trap 'Exit $?' 1 2 13 15
+
+cd "$t_" || error_ "failed to cd to $t_"
+
+if ( diff --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
+  compare() { diff -u "$@"; }
+elif ( cmp --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
+  compare() { cmp -s "$@"; }
+else
+  compare() { cmp "$@"; }
+fi
+
+# Initialize; all bourne shell scripts end with "Exit $fail".
+fail=0
-- 
1.6.5.3.433.g11067