# 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.
+# export ...ENVVAR_SETTINGS...; $(SHELL) 9>&2
+# 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>&$stderr_fileno_; }
+# Note that correct expansion of "$*" depends on IFS starting with ' '.
+# Always write the full diagnostic to stderr.
+# When stderr_fileno_ is not 2, also emit the first line of the
+# diagnostic to that file descriptor.
+warn_ ()
+{
+ # If IFS does not start with ' ', set it and emit the warning in a subshell.
+ case $IFS in
+ ' '*) printf '%s\n' "$*" >&2
+ test $stderr_fileno_ = 2 \
+ || { printf '%s\n' "$*" | sed 1q >&$stderr_fileno_ ; } ;;
+ *) (IFS=' '; warn_ "$@");;
+ esac
+}
fail_ () { warn_ "$ME_: failed test: $@"; Exit 1; }
skip_ () { warn_ "$ME_: skipped test: $@"; Exit 77; }
+fatal_ () { warn_ "$ME_: hard error: $@"; Exit 99; }
framework_failure_ () { warn_ "$ME_: set-up failure: $@"; Exit 99; }
# Sanitize this shell to POSIX mode, if possible.
st_=$?
# $re_shell_ works just fine. Use it.
- test $st_ = 10 && break
+ if test $st_ = 10; then
+ gl_set_x_corrupts_stderr_=false
+ break
+ fi
# If this is our first marginally acceptable shell, remember it.
if test "$st_:$marginal_" = 9: ; then
# a partition, or to undo any other global state changes.
cleanup_ () { :; }
-if ( diff --version < /dev/null 2>&1 | grep GNU ) > /dev/null 2>&1; then
- compare () { diff -u "$@"; }
+# Arrange not to let diff or cmp operate on /dev/null,
+# since on some systems (at least OSF/1 5.1), that doesn't work.
+# When there are not two arguments, or no argument is /dev/null, return 2.
+# When one argument is /dev/null and the other is not empty,
+# cat the nonempty file to stderr and return 1.
+# Otherwise, return 0.
+compare_dev_null_ ()
+{
+ test $# = 2 || return 2
+
+ if test "x$1" = x/dev/null; then
+ set dummy "$2" "$1"; shift
+ fi
+
+ test "x$2" = x/dev/null || return 2
+
+ test -s "$1" || return 0
+
+ cat - "$1" <<EOF >&2
+Unexpected contents of $1:
+EOF
+ return 1
+}
+
+if diff_out_=`( diff -u "$0" "$0" < /dev/null ) 2>/dev/null`; then
+ if test -z "$diff_out_"; then
+ compare_ () { diff -u "$@"; }
+ else
+ compare_ ()
+ {
+ if diff -u "$@" > diff.out; then
+ # No differences were found, but Solaris 'diff' produces output
+ # "No differences encountered". Hide this output.
+ rm -f diff.out
+ true
+ else
+ cat diff.out
+ rm -f diff.out
+ false
+ fi
+ }
+ fi
+elif diff_out_=`( diff -c "$0" "$0" < /dev/null ) 2>/dev/null`; then
+ if test -z "$diff_out_"; then
+ compare_ () { diff -c "$@"; }
+ else
+ compare_ ()
+ {
+ if diff -c "$@" > diff.out; then
+ # No differences were found, but AIX and HP-UX 'diff' produce output
+ # "No differences encountered" or "There are no differences between the
+ # files.". Hide this output.
+ rm -f diff.out
+ true
+ else
+ cat diff.out
+ rm -f diff.out
+ false
+ fi
+ }
+ fi
elif ( cmp --version < /dev/null 2>&1 | grep GNU ) > /dev/null 2>&1; then
- compare () { cmp -s "$@"; }
+ compare_ () { cmp -s "$@"; }
else
- compare () { cmp "$@"; }
+ compare_ () { cmp "$@"; }
fi
+# Given compare_dev_null_'s preprocessing, defer to compare_ if 2 or more.
+# Otherwise, propagate $? to caller: any diffs have already been printed.
+compare ()
+{
+ compare_dev_null_ "$@"
+ case $? in
+ 0|1) return $?;;
+ *) compare_ "$@";;
+ esac
+}
+
# An arbitrary prefix to help distinguish test directories.
testdir_prefix_ () { printf gt; }
{
case $# in
2);;
- *) fail_ "Usage: $ME DIR TEMPLATE";;
+ *) fail_ "Usage: mktempd_ DIR TEMPLATE";;
esac
destdir_=$1