# source this file; set up for tests
-# Copyright (C) 2009 Free Software Foundation, Inc.
+# Copyright (C) 2009, 2010 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
#
# #!/bin/sh
# : ${srcdir=.}
-# . "$srcdir/init.sh" --set-path=.
+# . "$srcdir/init.sh"; path_prepend_ .
# Execute some commands.
# Note that these commands are executed in a subdirectory, therefore you
# need to prepend "../" to relative filenames in the build directory.
# Makefile:
# $ export srcdir=../../tests # this is an example
# 3. Execute the commands from the test, copy&pasting them one by one:
-# $ . "$srcdir/init.sh" --set-path=.
+# $ . "$srcdir/init.sh"; path_prepend_ .
# ...
# 4. Finally
# $ exit
+# We require $(...) support unconditionally.
+# We require a few additional shell features only when $EXEEXT is nonempty,
+# in order to support automatic $EXEEXT emulation:
+# - hyphen-containing alias names
+# - we prefer to use ${var#...} substitution, rather than having
+# to work around lack of support for that feature.
+# The following code attempts to find a shell with support for these features
+# and re-exec's it. If not, it skips the current test.
+
+gl_shell_test_script_='
+test $(echo y) = y || exit 1
+test -z "$EXEEXT" && exit 0
+shopt -s expand_aliases
+alias a-b="echo zoo"
+v=abx
+ test ${v%x} = ab \
+ && test ${v#a} = bx \
+ && test $(a-b) = zoo
+'
+
+if test "x$1" = "x--no-reexec"; then
+ shift
+else
+ for re_shell_ in "${CONFIG_SHELL:-no_shell}" /bin/sh bash dash zsh pdksh fail
+ do
+ test "$re_shell_" = no_shell && continue
+ test "$re_shell_" = fail && skip_ failed to find an adequate shell
+ if "$re_shell_" -c "$gl_shell_test_script_" 2>/dev/null; then
+ exec "$re_shell_" "$0" --no-reexec "$@"
+ echo "$ME_: exec failed" 1>&2
+ exit 127
+ fi
+ done
+fi
+
+test -n "$EXEEXT" && shopt -s expand_aliases
+
# We use a trap below for cleanup. This requires us to go through
# hoops to get the right exit status transported through the handler.
# So use `Exit STATUS' instead of `exit STATUS' inside of the tests.
# sh inside this function.
Exit () { set +e; (exit $1); exit $1; }
-fail_() { echo "$ME_: failed test: $@" 1>&2; Exit 1; }
-skip_() { echo "$ME_: skipped test: $@" 1>&2; Exit 77; }
+# Print warnings (e.g., about skipped and failed tests) to this file number.
+# Override by defining to say, 9, in init.cfg, and putting say,
+# "export ...ENVVAR_SETTINGS...; exec 9>&2; $(SHELL)" in the definition
+# of TESTS_ENVIRONMENT in your tests/Makefile.am file.
+# This is useful when using automake's parallel tests mode, to print
+# the reason for skip/failure to console, rather than to the .log files.
+: ${stderr_fileno_=2}
+
+warn_() { echo "$@" 1>&$stderr_fileno_; }
+fail_() { warn_ "$ME_: failed test: $@"; Exit 1; }
+skip_() { warn_ "$ME_: skipped test: $@"; Exit 77; }
+framework_failure_() { warn_ "$ME_: set-up failure: $@"; Exit 1; }
# 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
exit $__st
}
-setup_()
+# Given a directory name, DIR, if every entry in it that matches *.exe
+# contains only the specified bytes (see the case stmt below), then print
+# a space-separated list of those names and return 0. Otherwise, don't
+# print anything and return 1. Naming constraints apply also to DIR.
+find_exe_basenames_()
{
- test "$VERBOSE" = yes && set -x
+ feb_dir_=$1
+ feb_fail_=0
+ feb_result_=
+ feb_sp_=
+ for feb_file_ in $feb_dir_/*.exe; do
+ case $feb_file_ in
+ *[!-a-zA-Z/0-9_.+]*) feb_fail_=1; break;;
+ *) # Remove leading file name components as well as the .exe suffix.
+ feb_file_=${feb_file_##*/}
+ feb_file_=${feb_file_%.exe}
+ feb_result_="$feb_result_$feb_sp_$feb_file_";;
+ esac
+ feb_sp_=' '
+ done
+ test $feb_fail_ = 0 && printf %s "$feb_result_"
+ return $feb_fail_
+}
+
+# Consider the files in directory, $1.
+# For each file name of the form PROG.exe, create an alias named
+# PROG that simply invokes PROG.exe, then return 0. If any selected
+# file name or the directory name, $1, contains an unexpected character,
+# define no function and return 1.
+create_exe_shims_()
+{
+ case $EXEEXT in
+ '') return 0 ;;
+ .exe) ;;
+ *) echo "$0: unexpected \$EXEEXT value: $EXEEXT" 1>&2; return 1 ;;
+ esac
- # Honor one or more --set-path=. options (i.e., or --set-path=../src).
- # Use this option to prepend to PATH an absolute name for the
- # specified, possibly-relative, directory.
+ base_names_=`find_exe_basenames_ $1` \
+ || { echo "$0 (exe_shim): skipping directory: $1" 1>&2; return 1; }
+
+ if test -n "$base_names_"; then
+ for base_ in $base_names_; do
+ alias "$base_"="$base_$EXEEXT"
+ done
+ fi
+
+ return 0
+}
+
+# Use this function to prepend to PATH an absolute name for each
+# specified, possibly-$initial_cwd_-relative, directory.
+path_prepend_()
+{
while test $# != 0; do
- case $1 in
- --set-path=*)
- path_dir_=${1#--set-path=}
- test -z "$path_dir_" && fail_ "missing argument to --set-path="
- abs_path_dir_=`cd "$path_dir_" && echo "$PWD" || exit 1` \
- || fail_ "invalid path dir: $path_dir"
- PATH="$abs_path_dir_:$PATH"
- export PATH
- shift
- ;;
- *) fail_ "unrecognized option: $1"
- ;;
+ path_dir_=$1
+ case $path_dir_ in
+ '') fail_ "invalid path dir: '$1'";;
+ /*) abs_path_dir_=$path_dir_;;
+ *) abs_path_dir_=`cd "$initial_cwd_/$path_dir_" && echo "$PWD"` \
+ || fail_ "invalid path dir: $path_dir_";;
+ esac
+ case $abs_path_dir_ in
+ *:*) fail_ "invalid path dir: '$abs_path_dir_'";;
esac
+ PATH="$abs_path_dir_:$PATH"
+
+ # Create an alias, FOO, for each FOO.exe in this directory.
+ create_exe_shims_ "$abs_path_dir_" \
+ || fail_ "something failed (above): $abs_path_dir_"
+ shift
done
+ export PATH
+}
+
+setup_()
+{
+ test "$VERBOSE" = yes && set -x
initial_cwd_=$PWD
ME_=`expr "./$0" : '.*/\(.*\)$'`
if test -r "$dev_rand_"; then
# Note: 256-length($chars_) == 194; 3 copies of $chars_ is 186 + 8 = 194.
dd ibs=$n_ count=1 if=$dev_rand_ 2>/dev/null \
- | tr -c $chars_ 01234567$chars_$chars_$chars_
+ | LC_ALL=C tr -c $chars_ 01234567$chars_$chars_$chars_
return
fi
echo "$data_" \
| dd bs=1 skip=50 count=$n_ 2>/dev/null \
- | tr -c $chars_ 01234567$chars_$chars_$chars_
+ | LC_ALL=C tr -c $chars_ 01234567$chars_$chars_$chars_
}
mktempd_()
fail=0
# First, try to use mktemp.
- d=`env -u TMPDIR mktemp -d -t -p "$destdir_" "$template_" 2>/dev/null` \
+ d=`unset TMPDIR; mktemp -d -t -p "$destdir_" "$template_" 2>/dev/null` \
|| fail=1
# The resulting name must be in the specified directory.