1 # This file is part of Autoconf. -*- Autoconf -*-
2 # M4 macros used in building test suites.
4 # Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free
5 # Software Foundation, Inc.
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 # As a special exception, the Free Software Foundation gives unlimited
21 # permission to copy, distribute and modify the configure scripts that
22 # are the output of Autoconf. You need not follow the terms of the GNU
23 # General Public License when using or distributing such scripts, even
24 # though portions of the text of Autoconf appear in them. The GNU
25 # General Public License (GPL) does govern all other use of the material
26 # that constitutes the Autoconf program.
28 # Certain portions of the Autoconf source text are designed to be copied
29 # (in certain cases, depending on the input) into the output of
30 # Autoconf. We call these the "data" portions. The rest of the Autoconf
31 # source text consists of comments plus executable code that decides which
32 # of the data portions to output in any given case. We call these
33 # comments and executable code the "non-data" portions. Autoconf never
34 # copies any of the non-data portions into its output.
36 # This special exception to the GPL applies to versions of Autoconf
37 # released by the Free Software Foundation. When you make and
38 # distribute a modified version of Autoconf, you may extend this special
39 # exception to the GPL to apply to your modified version as well, *unless*
40 # your modified version has the potential to copy into its output some
41 # of the text that was the non-data portion of the version that you started
42 # with. (In other words, unless your change moves or copies text from
43 # the non-data portions to the data portions.) If your modification has
44 # such potential, you must delete any notice of this special exception
45 # to the GPL from your modified version.
47 # _m4_divert(DIVERSION-NAME)
48 # --------------------------
49 # Convert a diversion name into its number. Otherwise, return
50 # DIVERSION-NAME which is supposed to be an actual diversion number.
51 # Of course it would be nicer to use m4_case here, instead of zillions
52 # of little macros, but it then takes twice longer to run `autoconf'!
69 # Overall initialization, value of $at_groups_all.
71 # Setup defaults required for option processing.
73 # Option processing. After AT_INIT, user options can be entered here as
74 # cases of a case statement.
76 # Finish up the option processing.
79 # Start printing the help message.
81 # Modes help text. Additional modes can be appended as self-contained
82 # cat'd here-docs as generated by AS_HELP_STRING.
84 # Tuning help text. Additional tuning options can be appended as
85 # self-contained cat'd here-docs as generated by AS_HELP_STRING.
87 # User help can be appended to this as self-contained cat'd here-docs.
89 # Finish up the help texts.
92 # Head of the handling of --version.
94 # Copyright notices for --version.
96 # Tail of the handling of --version.
99 # Like DEFAULTS but run after argument processing for purposes of
100 # optimization. Do anything else that needs to be done to prepare for
101 # tests. Sets up verbose and log file descriptors. Sets and logs PATH.
103 # The core of the test suite.
105 # tail of the core for;case, overall wrap up, generation of debugging
106 # scripts and statistics.
108 # The collector for code for each test, the ``normal'' diversion, but
109 # undiverted into other locations before final output.
112 # Series of functions for each test group. The functions deliberately
113 # occur after the end of the shell script, so that the shell need not
114 # spend time parsing functions it will not execute.
116 m4_define([_m4_divert(DEFAULTS)], 100)
117 m4_define([_m4_divert(PARSE_ARGS_BEGIN)], 200)
118 m4_define([_m4_divert(PARSE_ARGS)], 201)
119 m4_define([_m4_divert(PARSE_ARGS_END)], 202)
120 m4_define([_m4_divert(HELP)], 300)
121 m4_define([_m4_divert(HELP_MODES)], 301)
122 m4_define([_m4_divert(HELP_TUNING)], 302)
123 m4_define([_m4_divert(HELP_OTHER)], 303)
124 m4_define([_m4_divert(HELP_END)], 304)
125 m4_define([_m4_divert(VERSION)], 350)
126 m4_define([_m4_divert(VERSION_NOTICES)], 351)
127 m4_define([_m4_divert(VERSION_END)], 352)
128 m4_define([_m4_divert(PREPARE_TESTS)], 400)
129 m4_define([_m4_divert(TESTS)], 401)
130 m4_define([_m4_divert(TESTS_END)], 402)
131 m4_define([_m4_divert(TEST_SCRIPT)], 403)
132 m4_define([_m4_divert(TEST_FUNCTIONS)], 500)
137 # Return the current file sans directory, a colon, and the current
138 # line. Be sure to return a _quoted_ file name, so if, for instance,
139 # the user is lunatic enough to have a file named `dnl' (and I, for
140 # one, love to be brainless and stubborn sometimes), then we return a
143 # Gee, we can't use simply
145 # m4_bpatsubst(__file__, [^.*/\(.*\)], [[\1]])
147 # since then, since `dnl' doesn't match the pattern, it is returned
148 # with once quotation level less, so you lose! And since GNU M4
149 # is one of the biggest junk in the whole universe wrt regexp, don't
150 # even think about using `?' or `\?'. Bah, `*' will do.
151 # Pleeeeeeeease, Gary, provide us with dirname and ERE!
153 # M4 recompiles the regular expression for every m4_bpatsubst, but __file__
154 # rarely changes. Be fast - only compute the dirname when necessary; for
155 # autoconf alone, this shaves off several seconds in building testsuite.
156 m4_define([_AT_LINE_file])
157 m4_define([_AT_LINE_base])
159 [m4_if(m4_defn([_AT_LINE_file]), __file__, [],
160 [m4_do([m4_define([_AT_LINE_file], __file__)],
161 [m4_define([_AT_LINE_base],
162 m4_bpatsubst(__file__, [^.*/\([^/]*\)$],
164 m4_defn([_AT_LINE_base]):__line__])
167 # _AT_NORMALIZE_TEST_GROUP_NUMBER(SHELL-VAR)
168 # ------------------------------------------
169 # Normalize SHELL-VAR so that its value has the same number of digits as
170 # all the other test group numbers.
171 m4_define([_AT_NORMALIZE_TEST_GROUP_NUMBER],
175 '"$at_format"'*) break;;
181 # _AT_CREATE_DEBUGGING_SCRIPT
182 # ---------------------------
183 # Create the debugging script $at_group_dir/run which will reproduce the
184 # current test group.
185 m4_define([_AT_CREATE_DEBUGGING_SCRIPT],
188 echo 'test "${ZSH_VERSION+set}" = set && alias -g '\''${1+"$[@]"}'\''='\''"$[@]"'\'''
189 AS_ECHO(["cd '$at_dir'"])
190 AS_ECHO(["exec \${CONFIG_SHELL-$SHELL} $[0] -v -d $at_debug_args $at_group \${1+\"\$[@]\"}"])
193 chmod +x $at_group_dir/run
194 ])# _AT_CREATE_DEBUGGING_SCRIPT
197 # AT_INIT([TESTSUITE-NAME])
198 # -------------------------
201 [m4_pattern_forbid([^_?AT_])
202 m4_define([AT_TESTSUITE_NAME],
203 m4_defn([AT_PACKAGE_STRING])[ test suite]m4_ifval([$1], [: $1]))
204 m4_define([AT_ordinal], 0)
205 m4_define([AT_banner_ordinal], 0)
206 m4_define([AT_groups_all], [])
207 m4_define([AT_help_all], [])
209 m4_divert_push([DEFAULTS])dnl
211 [Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software
213 This test suite is free software; the Free Software Foundation gives
214 unlimited permission to copy, distribute and modify it.])
217 SHELL=${CONFIG_SHELL-/bin/sh}
222 ## --------------- ##
223 ## Shell functions ##
224 ## --------------- ##
226 # at_func_check_newline COMMAND
227 # Test if COMMAND includes a newline and, if so, print a message and return exit code 1
228 at_func_check_newline ()
232 '*) echo 'Not enabling shell tracing (command contains an embedded newline)' ; return 1 ;;
237 # at_func_filter_trace EXIT-CODE
238 # Split the contents of file "$at_stder1" into the "set -x" trace (on stderr) and
239 # the other lines (on file "$at_stderr"). Return the exit code EXIT-CODE.
240 at_func_filter_trace ()
242 grep '^ *+' "$at_stder1" >&2
243 grep -v '^ *+' "$at_stder1" >"$at_stderr"
247 # at_func_log_failure FILE-LIST
248 # Copy the files in the list on stdout with a "> " prefix, and exit the shell
249 # with a failure exit code.
250 at_func_log_failure ()
253 do AS_ECHO(["$file:"]); sed 's/^/> /' "$file"; done
254 echo 1 > "$at_status_file"
258 # at_func_check_skip EXIT-CODE
259 # Check whether EXIT-CODE is the special exit code 77, and if so exit the shell
260 # with that same exit code.
261 at_func_check_skip ()
264 77) echo 77 > "$at_status_file"; exit 77;;
268 # at_func_check_status EXPECTED EXIT-CODE LINE
269 # Check whether EXIT-CODE is the expected exit code, and if so do nothing. Else,
270 # if it is 77 exit the shell with that same exit code; if it is anything else
271 # print an error message and fail the test.
272 at_func_check_status ()
274 dnl This order ensures that we don't `skip' if we are precisely checking $? = 77.
277 77) echo 77 > "$at_status_file"; exit 77;;
278 *) AS_ECHO(["$[3]: exit code was $[2], expected $[1]"])
283 # at_func_diff_devnull FILE
284 # Emit a diff between /dev/null and FILE. Uses "test -s" to avoid useless
286 at_func_diff_devnull ()
288 test -s "$[1]" || return 0
289 $at_diff "$at_devnull" "$[1]"
292 # at_func_test NUMBER
293 # -------------------
294 # Parse out test NUMBER from the tail of this file.
297 sed -n '/^@%:@AT_START_'$[1]'$/,/^@%:@AT_STOP_'$[1]'$/p' "$at_myself" \
301 # Load the config file.
302 for at_file in atconfig atlocal
304 test -r $at_file || continue
305 . ./$at_file || AS_ERROR([invalid content: $at_file])
308 # Autoconf <=2.59b set at_top_builddir instead of at_top_build_prefix:
309 : ${at_top_build_prefix=$at_top_builddir}
311 # atconfig delivers names relative to the directory the test suite is
312 # in, but the groups themselves are run in testsuite-dir/group-dir.
313 if test -n "$at_top_srcdir"; then
315 for at_dir in srcdir top_srcdir top_build_prefix
317 at_val=AS_VAR_GET([at_$at_dir])
319 [[\\/$]]* | ?:[[\\/]]* ) at_prefix= ;;
320 *) at_prefix=../../ ;;
322 AS_VAR_SET([$at_dir], [$at_prefix$at_val])
326 # Not all shells have the 'times' builtin; the subshell is needed to make
327 # sure we discard the 'times: not found' message from the shell.
329 (times) >/dev/null 2>&1 && at_times_p=:
331 # CLI Arguments to pass to the debugging scripts.
335 # Shall we be verbose? ':' means no, empty means yes.
339 # Shall we keep the debug scripts? Must be `:' when the suite is
340 # run by a debug script, so that the script doesn't remove itself.
342 # Display help message?
344 # Display the version message?
351 # The directory we are in.
353 # An absolute reference to this testsuite script.
354 dnl m4-double quote, to preserve []
356 [\\/]* | ?:[\\/]* ) at_myself=$as_myself ;;
357 * ) at_myself=$at_dir/$as_myself ;;
359 # The directory the whole suite works in.
360 # Should be absolute to let the user `cd' at will.
361 at_suite_dir=$at_dir/$as_me.dir
362 # The file containing the suite.
363 at_suite_log=$at_dir/$as_me.log
364 # The file containing the location of the last AT_CHECK.
365 at_check_line_file=$at_suite_dir/at-check-line
366 # The file containing the exit status of the last command.
367 at_status_file=$at_suite_dir/at-status
368 # The files containing the output of the tested commands.
369 at_stdout=$at_suite_dir/at-stdout
370 at_stder1=$at_suite_dir/at-stder1
371 at_stderr=$at_suite_dir/at-stderr
372 # The file containing the function to run a test group.
373 at_test_source=$at_suite_dir/at-test-source
374 # The file containing dates.
375 at_times_file=$at_suite_dir/at-times
376 m4_divert_pop([DEFAULTS])dnl
377 m4_wrap([m4_divert_text([DEFAULTS],
379 # List of the tested programs.
380 at_tested='m4_ifdef([AT_tested], [AT_tested])'
381 # List of the all the test groups.
382 at_groups_all='AT_groups_all'
383 # As many question marks as there are digits in the last test group number.
384 # Used to normalize the test group numbers so that `ls' lists them in
386 at_format='m4_bpatsubst(m4_defn([AT_ordinal]), [.], [?])'
387 # Description of all the test groups.
388 at_help_all="AS_ESCAPE(m4_dquote(m4_defn([AT_help_all])))"])])dnl
389 m4_divert_push([PARSE_ARGS])dnl
394 # If the previous option needs an argument, assign it.
395 if test -n "$at_prev"; then
396 at_option=$at_prev=$at_option
401 *=*) at_optarg=`expr "x$at_option" : 'x[[^=]]*=\(.*\)'` ;;
405 # Accept the important Cygnus configure options, so we can diagnose typos.
421 test -d "$at_suite_dir" &&
422 find "$at_suite_dir" -type d ! -perm -700 -exec chmod u+rwx \{\} \;
423 rm -f -r "$at_suite_dir" "$at_suite_log"
437 at_verbose=; at_quiet=:
441 at_traceon='set -x'; at_traceoff='set +x'
444 [[0-9] | [0-9][0-9] | [0-9][0-9][0-9] | [0-9][0-9][0-9][0-9]])
445 at_groups="$at_groups$at_option "
449 [[0-9]- | [0-9][0-9]- | [0-9][0-9][0-9]- | [0-9][0-9][0-9][0-9]-])
450 at_range_start=`echo $at_option |tr -d X-`
451 at_range=`AS_ECHO([" $at_groups_all "]) | \
452 sed -e 's/^.* \('$at_range_start' \)/\1/'`
453 at_groups="$at_groups$at_range "
456 [-[0-9] | -[0-9][0-9] | -[0-9][0-9][0-9] | -[0-9][0-9][0-9][0-9]])
457 at_range_end=`echo $at_option |tr -d X-`
458 at_range=`AS_ECHO([" $at_groups_all "]) | \
459 sed -e 's/\( '$at_range_end'\) .*$/\1/'`
460 at_groups="$at_groups$at_range "
463 [[0-9]-[0-9] | [0-9]-[0-9][0-9] | [0-9]-[0-9][0-9][0-9]] | \
464 [[0-9]-[0-9][0-9][0-9][0-9] | [0-9][0-9]-[0-9][0-9]] | \
465 [[0-9][0-9]-[0-9][0-9][0-9] | [0-9][0-9]-[0-9][0-9][0-9][0-9]] | \
466 [[0-9][0-9][0-9]-[0-9][0-9][0-9]] | \
467 [[0-9][0-9][0-9]-[0-9][0-9][0-9][0-9]] | \
468 [[0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9]] )
469 at_range_start=`expr $at_option : '\(.*\)-'`
470 at_range_end=`expr $at_option : '.*-\(.*\)'`
471 if test $at_range_start -gt $at_range_end; then
473 at_range_end=$at_range_start
474 at_range_start=$at_tmp
476 at_range=`AS_ECHO([" $at_groups_all "]) | \
477 sed -e 's/^.*\( '$at_range_start' \)/\1/' \
478 -e 's/\( '$at_range_end'\) .*$/\1/'`
479 at_groups="$at_groups$at_range "
487 at_groups_selected=$at_help_all
499 at_keyword=`expr "X$at_keyword" : 'X!\(.*\)'`
502 # It is on purpose that we match the test group titles too.
503 at_groups_selected=`AS_ECHO(["$at_groups_selected"]) |
504 grep -i $at_invert ["^[1-9][^;]*;.*[; ]$at_keyword[ ;]"]`
506 # Smash the newlines.
507 at_groups_selected=`AS_ECHO(["$at_groups_selected"]) | sed 's/;.*//' |
510 at_groups="$at_groups$at_groups_selected "
512 m4_divert_pop([PARSE_ARGS])dnl
513 dnl Process *=* last to allow for user specified --option=* type arguments.
514 m4_divert_push([PARSE_ARGS_END])dnl
517 at_envvar=`expr "x$at_option" : 'x\([[^=]]*\)='`
518 # Reject names that are not valid shell variable names.
519 expr "x$at_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
520 AS_ERROR([invalid variable name: $at_envvar])
521 at_value=`AS_ECHO(["$at_optarg"]) | sed "s/'/'\\\\\\\\''/g"`
522 eval "$at_envvar='$at_value'"
524 # Propagate to debug scripts.
525 at_debug_args="$at_debug_args $at_envvar='$at_value'"
528 *) AS_ECHO(["$as_me: invalid option: $at_option"]) >&2
529 AS_ECHO(["Try \`$[0] --help' for more information."]) >&2
535 # Selected test groups.
536 if test -z "$at_groups"; then
537 at_groups=$at_groups_all
539 # Sort the tests, removing duplicates:
540 at_groups=`AS_ECHO(["$at_groups"]) | tr ' ' "$as_nl" | sort -nu`
541 # and add banners. (Passing at_groups_all is tricky--see the comment
542 # starting with "Passing at_groups is tricky.")
543 at_groups=`AS_ECHO(["$at_groups$as_nl $at_groups_all"]) |
544 awk ['BEGIN { FS = "@" } # Effectively switch off field splitting.
545 /^$/ { next } # Ignore the empty line.
546 !/ / { groups++; selected[$ 0] = 1; next }
547 # The last line, containing at_groups_all.
549 n = split($ 0, a, " ")
550 # If there are several tests, select their banners:
552 for (i = 1; i <= n; i++) {
553 if (a[i] ~ /^banner-/)
555 else if (banner != "" && selected[a[i]] == 1)
559 for (i = 1; i <= n; i++)
560 if (selected[a[i]] == 1)
565 m4_divert_pop([PARSE_ARGS_END])dnl
566 m4_divert_push([HELP])dnl
571 Usage: $[0] [[OPTION]... [VARIABLE=VALUE]... [TESTS]]
573 Run all the tests, or the selected TESTS, given by numeric ranges, and
574 save a detailed log file. Upon failure, create debugging scripts.
576 You should not change environment variables unless explicitly passed
577 as command line arguments. Set \`AUTOTEST_PATH' to select the executables
578 to exercise. Each relative directory is expanded as build and source
579 directories relatively to the top level of this distribution. E.g.,
581 $ $[0] AUTOTEST_PATH=bin
583 possibly amounts into
585 PATH=/tmp/foo-1.0/bin:/src/foo-1.0/bin:\$PATH
587 m4_divert_pop([HELP])dnl
588 m4_divert_push([HELP_MODES])dnl
592 -h, --help print the help message, then exit
593 -V, --version print version number, then exit
594 -c, --clean remove all the files this test suite might create and exit
595 -l, --list describes all the tests, or the selected TESTS
597 m4_divert_pop([HELP_MODES])dnl
598 m4_divert_push([HELP_TUNING])dnl
601 dnl extra quoting prevents emacs whitespace mode from putting tabs in output
603 -k, --keywords=KEYWORDS
604 [ select the tests matching all the comma-separated KEYWORDS]
605 [ multiple \`-k' accumulate; prefixed \`!' negates a KEYWORD]
606 -e, --errexit abort as soon as a test fails; implies --debug
607 -v, --verbose force more detailed output
608 [ default for debugging scripts]
609 -d, --debug inhibit clean up and top-level logging
610 [ default for debugging scripts]
611 -x, --trace enable tests shell tracing
613 m4_divert_pop([HELP_TUNING])dnl
614 m4_divert_push([HELP_END])dnl
617 Report bugs to <AT_PACKAGE_BUGREPORT>.
625 AT_TESTSUITE_NAME test groups:
627 NUM: FILE-NAME:LINE TEST-GROUP-NAME
631 # Passing at_groups is tricky. We cannot use it to form a literal string
632 # or regexp because of the limitation of AIX awk. And Solaris' awk
633 # doesn't grok more than 99 fields in a record, so we have to use `split'.
634 AS_ECHO(["$at_groups$as_nl$at_help_all"]) |
635 awk 'BEGIN { FS = ";" }
637 for (n = split($ 0, a, " "); n; n--) selected[[a[n]]] = 1
641 if (selected[[$ 1]]) {
642 printf " %3d: %-18s %s\n", $ 1, $ 2, $ 3
643 if ($ 4) printf " %s\n", $ 4
648 m4_divert_pop([HELP_END])dnl
649 m4_divert_push([VERSION])dnl
650 if $at_version_p; then
651 AS_ECHO(["$as_me (AT_PACKAGE_STRING)"])
653 m4_divert_pop([VERSION])dnl
654 m4_divert_push([VERSION_END])dnl
658 m4_divert_pop([VERSION_END])dnl
659 m4_divert_push([PREPARE_TESTS])dnl
661 # Don't take risks: use only absolute directories in PATH.
663 # For stand-alone test suites, AUTOTEST_PATH is relative to `.'.
665 # For embedded test suites, AUTOTEST_PATH is relative to the top level
666 # of the package. Then expand it into build/src parts, since users
667 # may create executables in both places.
668 AUTOTEST_PATH=`AS_ECHO(["$AUTOTEST_PATH"]) | sed "s|:|$PATH_SEPARATOR|g"`
670 _AS_PATH_WALK([$AUTOTEST_PATH $PATH],
671 [test -n "$at_path" && at_path=$at_path$PATH_SEPARATOR
673 [[\\/]]* | ?:[[\\/]]* )
674 at_path=$at_path$as_dir
677 if test -z "$at_top_build_prefix"; then
678 # Stand-alone test suite.
679 at_path=$at_path$as_dir
681 # Embedded test suite.
682 at_path=$at_path$at_top_build_prefix$as_dir$PATH_SEPARATOR
683 at_path=$at_path$at_top_srcdir/$as_dir
688 # Now build and simplify PATH.
690 # There might be directories that don't exist, but don't redirect
691 # builtins' (eg., cd) stderr directly: Ultrix's sh hates that.
693 _AS_PATH_WALK([$at_path],
694 [as_dir=`(cd "$as_dir" && pwd) 2>/dev/null`
695 test -d "$as_dir" || continue
696 case $PATH_SEPARATOR$at_new_path$PATH_SEPARATOR in
697 *$PATH_SEPARATOR$as_dir$PATH_SEPARATOR*) ;;
698 $PATH_SEPARATOR$PATH_SEPARATOR) at_new_path=$as_dir ;;
699 *) at_new_path=$at_new_path$PATH_SEPARATOR$as_dir ;;
704 # Setting up the FDs.
705 # 5 is the log file. Not to be overwritten if `-d'.
706 m4_define([AS_MESSAGE_LOG_FD], [5])
708 at_suite_log=/dev/null
712 exec AS_MESSAGE_LOG_FD>>"$at_suite_log"
715 AS_BOX(m4_defn([AT_TESTSUITE_NAME])[.])
717 AS_BOX(m4_defn([AT_TESTSUITE_NAME])[.])
720 AS_ECHO(["$as_me: command line was:"])
721 AS_ECHO([" \$ $[0] $at_cli_args"])
724 # Try to find a few ChangeLogs in case it might help determining the
725 # exact version. Use the relative dir: if the top dir is a symlink,
726 # find will not follow it (and options to follow the links are not
727 # portable), which would result in no output here.
728 if test -n "$at_top_srcdir"; then
729 AS_BOX([ChangeLogs.])
731 for at_file in `find "$at_top_srcdir" -name ChangeLog -print`
733 AS_ECHO(["$as_me: $at_file:"])
734 sed 's/^/| /;10q' $at_file
742 # Contents of the config files.
743 for at_file in atconfig atlocal
745 test -r $at_file || continue
746 AS_ECHO(["$as_me: $at_file:"])
747 sed 's/^/| /' $at_file
751 AS_BOX([Tested programs.])
753 } >&AS_MESSAGE_LOG_FD
755 # Report what programs are being tested.
756 for at_program in : $at_tested
758 test "$at_program" = : && continue
759 _AS_PATH_WALK([$PATH], [test -f "$as_dir/$at_program" && break])
760 if test -f "$as_dir/$at_program"; then
762 AS_ECHO(["$at_srcdir/AT_LINE: $as_dir/$at_program --version"])
763 "$as_dir/$at_program" --version
765 } >&AS_MESSAGE_LOG_FD 2>&1
767 AS_ERROR([cannot find $at_program])
772 AS_BOX([Running the tests.])
773 } >&AS_MESSAGE_LOG_FD
776 at_start_time=`date +%s 2>/dev/null`
777 AS_ECHO(["$as_me: starting at: $at_start_date"]) >&AS_MESSAGE_LOG_FD
784 m4_divert_pop([PREPARE_TESTS])dnl
785 m4_divert_push([TESTS])dnl
787 # Create the master directory if it doesn't already exist.
788 test -d "$at_suite_dir" ||
789 mkdir "$at_suite_dir" ||
790 AS_ERROR([cannot create '$at_suite_dir'])
792 # Can we diff with `/dev/null'? DU 5.0 refuses.
793 if diff /dev/null /dev/null >/dev/null 2>&1; then
796 at_devnull=$at_suite_dir/devnull
800 # Use `diff -u' when possible.
801 if at_diff=`diff -u "$at_devnull" "$at_devnull" 2>&1` && test -z "$at_diff"
809 m4_text_box([Driver loop.])
810 for at_group in $at_groups
812 # Be sure to come back to the top test directory.
815 # Clearly separate the test groups when verbose.
816 test $at_group_count != 0 && $at_verbose echo
820 at_group_log=$at_suite_log
824 at_group_normalized=$at_group
825 _AT_NORMALIZE_TEST_GROUP_NUMBER(at_group_normalized)
827 # Create a fresh directory for the next test group, and enter.
828 at_group_dir=$at_suite_dir/$at_group_normalized
829 at_group_log=$at_group_dir/$as_me.log
830 if test -d "$at_group_dir"; then
831 find "$at_group_dir" -type d ! -perm -700 -exec chmod u+rwx \{\} \;
832 rm -fr "$at_group_dir" ||
833 AS_WARN([test directory could not be cleaned.])
835 # Be tolerant if the above `rm' was not able to remove the directory.
836 AS_MKDIR_P([$at_group_dir])
841 echo 0 > "$at_status_file"
843 # In verbose mode, append to the log file *and* show on
844 # the standard output; in quiet mode only write to the log
845 if test -z "$at_verbose"; then
846 at_tee_pipe='tee -a "$at_group_log"'
848 at_tee_pipe='cat >> "$at_group_log"'
852 dnl Test groups inserted here (TESTS).
853 m4_divert_pop([TESTS])[]dnl
854 m4_divert_push([TESTS_END])[]dnl
857 AS_ECHO(["$as_me: no such test group: $at_group"]) >&2
862 # Be sure to come back to the suite directory, in particular
863 # since below we might `rm' the group directory we are in currently.
869 if test ! -f "$at_check_line_file"; then
870 sed "s/^ */$as_me: warning: /" <<_ATEOF
871 A failure happened in a test group before any test could be
872 run. This means that test suite is improperly designed. Please
873 report this failure to <AT_PACKAGE_BUGREPORT>.
875 AS_ECHO(["$at_setup_line"]) >"$at_check_line_file"
877 at_group_count=`expr 1 + $at_group_count`
878 $at_verbose AS_ECHO_N(["$at_group. $at_setup_line: "])
879 AS_ECHO_N(["$at_group. $at_setup_line: "]) >> "$at_group_log"
880 case $at_xfail:$at_status in
882 at_msg="UNEXPECTED PASS"
883 at_xpass_list="$at_xpass_list $at_group"
884 at_errexit=$at_errexit_p
888 at_pass_list="$at_pass_list $at_group"
892 at_msg='skipped ('`cat "$at_check_line_file"`')'
893 at_skip_list="$at_skip_list $at_group"
897 at_msg='expected failure ('`cat "$at_check_line_file"`')'
898 at_xfail_list="$at_xfail_list $at_group"
902 at_msg='FAILED ('`cat "$at_check_line_file"`')'
903 at_fail_list="$at_fail_list $at_group"
904 at_errexit=$at_errexit_p
907 # Make sure there is a separator even with long titles.
908 AS_ECHO([" $at_msg"])
909 at_log_msg="$at_group. $at_desc ($at_setup_line): $at_msg"
912 # $at_times_file is only available if the group succeeded.
913 # We're not including the group log, so the success message
914 # is written in the global log separately. But we also
915 # write to the group log in case they're using -d.
916 if test -f "$at_times_file"; then
917 at_log_msg="$at_log_msg ("`sed 1d "$at_times_file"`')'
918 rm -f "$at_times_file"
920 AS_ECHO(["$at_log_msg"]) >> "$at_group_log"
921 AS_ECHO(["$at_log_msg"]) >&AS_MESSAGE_LOG_FD
923 # Cleanup the group directory, unless the user wants the files.
924 if $at_debug_p ; then
925 _AT_CREATE_DEBUGGING_SCRIPT
926 elif test -d "$at_group_dir"; then
927 find "$at_group_dir" -type d ! -perm -700 -exec chmod u+rwx \{\} \;
928 rm -fr "$at_group_dir"
932 # Upon failure, include the log into the testsuite's global
933 # log. The failure message is written in the group log. It
934 # is later included in the global log.
935 AS_ECHO(["$at_log_msg"]) >> "$at_group_log"
937 # Upon failure, keep the group directory for autopsy, and
938 # create the debugging script.
939 _AT_CREATE_DEBUGGING_SCRIPT
947 # Back to the top directory.
950 # Compute the duration of the suite.
952 at_stop_time=`date +%s 2>/dev/null`
953 AS_ECHO(["$as_me: ending at: $at_stop_date"]) >&AS_MESSAGE_LOG_FD
954 case $at_start_time,$at_stop_time in
956 at_duration_s=`expr $at_stop_time - $at_start_time`
957 at_duration_m=`expr $at_duration_s / 60`
958 at_duration_h=`expr $at_duration_m / 60`
959 at_duration_s=`expr $at_duration_s % 60`
960 at_duration_m=`expr $at_duration_m % 60`
961 at_duration="${at_duration_h}h ${at_duration_m}m ${at_duration_s}s"
962 AS_ECHO(["$as_me: test suite duration: $at_duration"]) >&AS_MESSAGE_LOG_FD
966 # Wrap up the test suite with summary statistics.
967 set X $at_skip_list; shift; at_skip_count=$[@%:@]
968 set X $at_fail_list; shift; at_fail_count=$[@%:@]
969 set X $at_xpass_list; shift; at_xpass_count=$[@%:@]
970 set X $at_xfail_list; shift; at_xfail_count=$[@%:@]
972 at_run_count=`expr $at_group_count - $at_skip_count`
973 at_unexpected_count=`expr $at_xpass_count + $at_fail_count`
974 at_total_fail_count=`expr $at_xfail_count + $at_fail_count`
977 AS_BOX([Test results.])
981 AS_BOX([Test results.])
983 } >&AS_MESSAGE_LOG_FD
986 dnl FIXME: this code is as far from i18n-cleanness as man
989 if test $at_run_count = 1; then
993 at_result="$at_run_count tests"
996 if $at_errexit_p && test $at_unexpected_count != 0; then
997 if test $at_xpass_count = 1; then
998 at_result="$at_result $at_were run, one passed"
1000 at_result="$at_result $at_were run, one failed"
1002 at_result="$at_result unexpectedly and inhibited subsequent tests."
1004 # Don't you just love exponential explosion of the number of cases?
1005 case $at_xpass_count:$at_fail_count:$at_xfail_count in
1007 0:0:0) at_result="$at_result $at_were successful." ;;
1008 0:0:*) at_result="$at_result behaved as expected." ;;
1010 # Some unexpected failures
1011 0:*:0) at_result="$at_result $at_were run,
1012 $at_fail_count failed unexpectedly." ;;
1014 # Some failures, both expected and unexpected
1015 0:*:1) at_result="$at_result $at_were run,
1016 $at_total_fail_count failed ($at_xfail_count expected failure)." ;;
1017 0:*:*) at_result="$at_result $at_were run,
1018 $at_total_fail_count failed ($at_xfail_count expected failures)." ;;
1020 # No unexpected failures, but some xpasses
1021 *:0:*) at_result="$at_result $at_were run,
1022 $at_xpass_count passed unexpectedly." ;;
1024 # No expected failures, but failures and xpasses
1025 *:1:0) at_result="$at_result $at_were run,
1026 $at_unexpected_count did not behave as expected ($at_fail_count unexpected failure)." ;;
1027 *:*:0) at_result="$at_result $at_were run,
1028 $at_unexpected_count did not behave as expected ($at_fail_count unexpected failures)." ;;
1031 *:*:1) at_result="$at_result $at_were run,
1032 $at_xpass_count passed unexpectedly,
1033 $at_total_fail_count failed ($at_xfail_count expected failure)." ;;
1034 *:*:*) at_result="$at_result $at_were run,
1035 $at_xpass_count passed unexpectedly,
1036 $at_total_fail_count failed ($at_xfail_count expected failures)." ;;
1039 if test $at_skip_count = 0 && test $at_run_count -gt 1; then
1040 at_result="All $at_result"
1044 # Now put skips in the mix.
1045 case $at_skip_count in
1047 1) at_result="$at_result
1048 1 test was skipped." ;;
1049 *) at_result="$at_result
1050 $at_skip_count tests were skipped." ;;
1053 if test $at_unexpected_count = 0; then
1055 echo "$at_result" >&AS_MESSAGE_LOG_FD
1057 echo "ERROR: $at_result" >&2
1058 echo "ERROR: $at_result" >&AS_MESSAGE_LOG_FD
1061 AS_BOX([Summary of the failures.])
1063 # Summary of failed and skipped tests.
1064 if test $at_fail_count != 0; then
1065 echo "Failed tests:"
1066 $SHELL "$[0]" $at_fail_list --list
1069 if test $at_skip_count != 0; then
1070 echo "Skipped tests:"
1071 $SHELL "$[0]" $at_skip_list --list
1074 if test $at_xpass_count != 0; then
1075 echo "Unexpected passes:"
1076 $SHELL "$[0]" $at_xpass_list --list
1079 if test $at_fail_count != 0; then
1080 AS_BOX([Detailed failed tests.])
1082 for at_group in $at_fail_list
1084 at_group_normalized=$at_group
1085 _AT_NORMALIZE_TEST_GROUP_NUMBER(at_group_normalized)
1086 cat "$at_suite_dir/$at_group_normalized/$as_me.log"
1091 if test -n "$at_top_srcdir"; then
1092 AS_BOX([${at_top_build_prefix}config.log])
1093 sed 's/^/| /' ${at_top_build_prefix}config.log
1096 } >&AS_MESSAGE_LOG_FD
1098 AS_BOX([$as_me.log was created.])
1101 AS_ECHO(["Please send \`${at_testdir+${at_testdir}/}$as_me.log' and all information you think might help:
1103 To: <AT_PACKAGE_BUGREPORT>
1104 Subject: @<:@AT_PACKAGE_STRING@:>@ $as_me:dnl
1105 $at_fail_list${at_fail_list:+ failed${at_xpass_list:+,}}dnl
1106 $at_xpass_list${at_xpass_list:+ passed unexpectedly}
1108 if test $at_debug_p = false; then
1110 echo 'You may investigate any problem if you feel able to do so, in which'
1111 echo 'case the test suite provides a good starting point. Its output may'
1112 AS_ECHO(["be found below \`${at_testdir+${at_testdir}/}$as_me.dir'."])
1120 m4_text_box([Actual tests.])
1121 m4_divert_pop([TESTS_END])dnl
1122 dnl End of AT_INIT: divert to KILL, only test groups are to be
1123 dnl output, the rest is ignored. Current diversion is BODY, inherited
1125 m4_divert_pop([BODY])
1126 m4_divert_push([KILL])
1130 # _AT_ARG_OPTION(OPTIONS,HELP-TEXT,[ARGS],[ACTION-IF-GIVEN],
1131 # [ACTION-IF-NOT-GIVEN])
1132 # ---------------------------------------------------------------------------
1133 # Internal implementation of AT_ARG_OPTION & AT_ARG_OPTION_ARG
1134 m4_defun([_AT_ARG_OPTION],
1135 [m4_divert_once([HELP_OTHER],
1140 ])dnl m4_divert_once HELP_OTHER
1141 m4_divert_text([HELP_OTHER],
1145 dnl Turn our options into our desired strings
1146 m4_ifdef([AT_first_option],[m4_undefine([AT_first_option])])dnl
1147 m4_ifdef([AT_case],[m4_undefine([AT_case])])dnl
1148 m4_ifdef([AT_case_no],[m4_undefine([AT_case_no])])dnl
1149 m4_ifdef([AT_case_arg],[m4_undefine([AT_case_arg])])dnl
1150 m4_foreach([AT_option], m4_split(m4_normalize([$1]),[[ \|]+]),
1151 [m4_define_default([AT_first_option],AT_option)dnl
1152 m4_append([AT_case],m4_if(m4_len(AT_option),1,[],[-])[-]AT_option, [ | ])dnl
1153 m4_append([AT_case_no],[--no]AT_option, [ | ])dnl
1154 m4_append([AT_case_arg],m4_if(m4_len(AT_option),1,[],[-])[-]AT_option[=*], [ | ])dnl
1155 ])dnl m4_foreach AT_option
1156 dnl keep track so we or the user may process ACTION-IF-NOT-GIVEN
1157 m4_divert_once([PARSE_ARGS_BEGIN],
1160 ## Set up package specific options.
1163 m4_divert_text([PARSE_ARGS_BEGIN],
1164 [dnl Provide a default value for options without arguments.
1165 m4_ifvaln([$3],,[at_arg_[]m4_bpatsubst([AT_first_option], -, _)=false])dnl
1166 at_arg_given_[]m4_bpatsubst([AT_first_option], -, _)=false
1167 ])dnl m4_divert_text DEFAULTS
1168 m4_ifval([$3],[m4_divert_once([PARSE_ARGS_END],
1171 ## Verify our last option didn't require an argument
1173 AS_IF([test -n "$at_prev"],[AS_ERROR([`$at_prev' requires an argument.])])])])
1174 m4_divert_text([PARSE_ARGS],
1175 [dnl Parse the options and args when necessary.
1178 at_prev=--m4_bpatsubst([AT_first_option], -, _)
1181 at_arg_[]m4_bpatsubst([AT_first_option], -, _)=$at_optarg
1182 at_arg_given_[]m4_bpatsubst([AT_first_option], -, _)=:
1187 at_arg_[]m4_bpatsubst([AT_first_option], -, _)=:
1188 at_arg_given_[]m4_bpatsubst([AT_first_option], -, _)=:
1189 m4_ifval([$4],[$4])dnl
1193 at_arg_[]m4_bpatsubst([AT_first_option], -, _)=false
1194 at_arg_given_[]m4_bpatsubst([AT_first_option], -, _)=:
1195 m4_ifval([$4],[$4])dnl
1196 ;;])dnl m4_ifvaln $3
1197 ])dnl m4_divert_text PARSE_ARGS
1199 [m4_divert_once([PARSE_ARGS_END],
1202 ## Process package specific options when _not_ supplied.
1203 ##])dnl m4_divert_once PARSE_ARGS_END
1204 m4_divert_text([PARSE_ARGS_END],
1206 AS_IF([$at_arg_given_[]m4_bpatsubst([AT_first_option], -, _)],,[$5])dnl
1207 ])dnl m4_divert_text PARSE_ARGS_END
1209 ])dnl _AT_ARG_OPTION
1212 # AT_ARG_OPTION(OPTIONS,HELP-TEXT,[ACTION-IF-GIVEN],[ACTION-IF-NOT-GIVEN])
1213 # ------------------------------------------------------------------------
1214 # Accept a set of OPTIONS with arguments. Add HELP-TEXT to the HELP_OTHER
1217 # Preceding dashes should not be passed into OPTIONS. Users will be required
1218 # to pass `--' before long options and `-' before single character options.
1220 # $at_arg_OPTION will be set to `:' if this option is received, `false' if
1221 # if --noOPTION is received, and `false' by default.
1223 # Run ACTION-IF-GIVEN each time an option in OPTIONS is encountered with
1224 # $at_optarg set to `:' or `false' as appropriate. $at_optarg is actually
1225 # just a copy of $at_arg_OPTION.
1227 # ACTION-IF-NOT-GIVEN will be run once after option parsing is complete
1228 # if no option from OPTIONS was found.
1229 m4_defun([AT_ARG_OPTION],[_AT_ARG_OPTION([$1],[$2],,[$3],[$4])])
1232 # AT_ARG_OPTION_ARG(OPTIONS,HELP-TEXT,[ACTION-IF-GIVEN],[ACTION-IF-NOT-GIVEN])
1233 # ---------------------------------------------------------------------------
1234 # Accept a set of OPTIONS with arguments, seperated by commas. Add HELP-TEXT
1235 # to the HELP_OTHER diversion.
1237 # Preceding dashes should not be passed into OPTIONS. Users will be required
1238 # to pass `--' before long options and `-' before single character options.
1240 # By default, any argument to these options will be assigned to the shell
1241 # variable $at_arg_OPTION, where OPTION is the first option in OPTIONS with
1242 # any `-' characters replaced with `_'.
1244 # Run ACTION-IF-GIVEN each time an option in OPTIONS is encountered with
1245 # $at_optarg set. $at_optarg is actually just a copy of $at_arg_OPTION.
1247 # ACTION-IF-NOT-GIVEN will be run once after option parsing is complete
1248 # if no option from OPTIONS was found.
1249 m4_defun([AT_ARG_OPTION_ARG],[_AT_ARG_OPTION([$1],[$2],1,[$3],[$4])])
1252 # AT_TESTED(PROGRAMS)
1253 # -------------------
1254 # Specify the list of programs exercised by the test suite. Their
1255 # versions are logged, and in the case of embedded test suite, they
1256 # must correspond to the version of the package. PATH should be
1257 # already preset so the proper executable will be selected.
1258 m4_define([AT_TESTED],
1259 [m4_append_uniq([AT_tested], [$1], [
1263 # AT_COPYRIGHT(TEXT)
1264 # ------------------
1265 # Emit TEXT, a copyright notice, in the top of the test suite and in
1266 # --version output. Macros in TEXT are evaluated once.
1267 m4_define([AT_COPYRIGHT],
1268 [AS_COPYRIGHT([$1])[]dnl
1269 m4_divert_text([VERSION_NOTICES],
1271 $1])])# AT_COPYRIGHT
1274 # AT_SETUP(DESCRIPTION)
1275 # ---------------------
1276 # Start a group of related tests, all to be executed in the same subshell.
1277 # The group is testing what DESCRIPTION says.
1278 m4_define([AT_SETUP],
1279 [m4_ifdef([AT_keywords], [m4_undefine([AT_keywords])])
1280 m4_define([AT_capture_files], [])
1281 m4_define([AT_line], AT_LINE)
1282 m4_define([AT_xfail], [at_xfail=no])
1283 m4_define([AT_description], m4_expand([$1]))
1284 m4_define([AT_ordinal], m4_incr(AT_ordinal))
1285 m4_append([AT_groups_all], [ ]m4_defn([AT_ordinal]))
1286 m4_divert_push([TEST_FUNCTIONS])dnl
1287 [#AT_START_]AT_ordinal
1288 @%:@ AT_ordinal. m4_defn([AT_line]): m4_defn([AT_description])
1289 at_setup_line='m4_defn([AT_line])'
1290 at_desc="AS_ESCAPE(m4_dquote(m4_defn([AT_description])))"
1291 $at_quiet AS_ECHO_N([m4_format(["%3d: $at_desc%*s"], AT_ordinal,
1292 m4_max(0, m4_eval(47 - m4_qlen(m4_defn([AT_description])))), [])])
1293 m4_divert_push([TEST_SCRIPT])dnl
1297 # AT_XFAIL_IF(SHELL-EXPRESSION)
1298 # -----------------------------
1299 # Set up the test to be expected to fail if SHELL-EXPRESSION evaluates to
1300 # true (exitcode = 0).
1301 m4_define([AT_XFAIL_IF],
1303 dnl Try to limit the amount of conditionals that we emit.
1307 [:], [m4_define([AT_xfail], [at_xfail=yes])],
1308 [true], [m4_define([AT_xfail], [at_xfail=yes])],
1309 [m4_append([AT_xfail], [
1310 $1 && at_xfail=yes])])])
1313 # AT_KEYWORDS(KEYWORDS)
1314 # ---------------------
1315 # Declare a list of keywords associated to the current test group.
1316 m4_define([AT_KEYWORDS],
1317 [m4_append_uniq([AT_keywords], [$1], [ ])])
1320 # AT_CAPTURE_FILE(FILE)
1321 # ---------------------
1322 # If the current test group does not behave as expected, save the contents of
1323 # FILE in the test suite log.
1324 m4_define([AT_CAPTURE_FILE],
1325 [m4_append_uniq([AT_capture_files], ["$1"], [ \
1331 # Complete a group of related tests.
1332 m4_define([AT_CLEANUP],
1333 [m4_append([AT_help_all],
1334 m4_defn([AT_ordinal]);m4_defn([AT_line]);m4_defn([AT_description]);m4_ifdef([AT_keywords], [m4_defn([AT_keywords])]);
1336 m4_divert_pop([TEST_SCRIPT])dnl Back to TEST_FUNCTIONS
1338 echo "# -*- compilation -*-" >> "$at_group_log"
1340 AS_ECHO(["AT_ordinal. m4_defn([AT_line]): testing $1..."])
1342 m4_undivert([TEST_SCRIPT])dnl Insert the code here
1344 $at_times_p && times >"$at_times_file"
1345 ) AS_MESSAGE_LOG_FD>&1 2>&1 | eval $at_tee_pipe
1346 at_status=`cat "$at_status_file"`
1347 [#AT_STOP_]AT_ordinal
1348 m4_divert_pop([TEST_FUNCTIONS])dnl Back to KILL.
1349 m4_divert_text([TESTS],
1351 if at_func_test AT_ordinal && . "$at_test_source"; then :; else
1352 AS_ECHO(["$as_me: unable to parse test group: $[1]"]) >&2
1360 # Output TEXT without any shell expansion.
1361 m4_define([AT_BANNER],
1362 [m4_define([AT_banner_ordinal], m4_incr(AT_banner_ordinal))
1363 m4_append([AT_groups_all], [ banner-]m4_defn([AT_banner_ordinal]))
1364 m4_divert_text([TESTS],
1366 banner-AT_banner_ordinal ) @%:@ Banner AT_banner_ordinal. AT_LINE
1377 # AT_DATA(FILE, CONTENTS)
1378 # -----------------------
1379 # Initialize an input data FILE with given CONTENTS, which should end with
1381 # This macro is not robust to active symbols in CONTENTS *on purpose*.
1382 # If you don't want CONTENTS to be evaluated, quote it twice.
1383 m4_define([AT_DATA],
1389 # AT_CHECK(COMMANDS, [STATUS = 0], STDOUT, STDERR,
1390 # [RUN-IF-FAIL], [RUN-IF-PASS])
1391 # ------------------------------------------------
1392 # Execute a test by performing given shell COMMANDS. These commands
1393 # should normally exit with STATUS, while producing expected STDOUT and
1394 # STDERR contents. Shell metacharacters in STDOUT and STDERR are
1395 # _not_ processed by the shell, but are treated as string literals.
1397 # STATUS, STDOUT, and STDERR are not checked if equal to `ignore'.
1399 # If STDOUT is `expout', then stdout is compared to the content of the file
1400 # `expout'. Likewise for STDERR and `experr'.
1402 # If STDOUT is `stdout', then the stdout is left in the file `stdout',
1403 # likewise for STDERR and `stderr'. Don't do this:
1405 # AT_CHECK([command >out])
1406 # # Some checks on `out'
1410 # AT_CHECK([command], [], [stdout])
1411 # # Some checks on `stdout'
1413 # You might wonder why you can't just use `ignore', then directly use stdout
1414 # and stderr left by the test suite:
1416 # AT_CHECK([command], [], [ignore])
1417 # AT_CHECK([check stdout])
1419 # If the test suite always captured data in the file `stdout', then the
1420 # second command would be trying to read and write from the same file, with
1421 # undefined behavior. Therefore, the test suite actually captures data in
1422 # an internal file of a different name, and only creates `stdout' when
1423 # explicitly requested.
1425 # Any line of stderr starting with leading blanks and a `+' are filtered
1426 # out, since most shells when tracing include subshell traces in stderr.
1427 # This may cause spurious failures when the test suite is run with `-x'.
1429 m4_define([AT_CHECK],
1430 [_AT_CHECK([$1],[$2],[$3],[$4],[$5],[$6],1)])
1432 # AT_CHECK_NOESCAPE(COMMANDS, [STATUS = 0], STDOUT, STDERR,
1433 # [RUN-IF-FAIL], [RUN-IF-PASS])
1434 # ---------------------------------------------------------
1435 # Like AT_CHECK, but do not AS_ESCAPE shell metacharacters in the STDOUT
1436 # and STDERR arguments before running the comparison.
1437 m4_define([AT_CHECK_NOESCAPE],
1438 [_AT_CHECK([$1],[$2],[$3],[$4],[$5],[$6])])
1441 # _AT_DECIDE_TRACEABLE(COMMANDS)
1442 # ------------------------------
1443 # Worker for for _AT_CHECK that expands to shell code. If COMMANDS are safe to
1444 # trace with `set -x', the shell code will evaluate to true. Otherwise,
1445 # the shell code will print a message stating an aspect of COMMANDS that makes
1446 # tracing them unsafe, and evaluate to false.
1448 # Tracing COMMANDS is not safe if they contain a command that spans multiple
1449 # lines. When the test suite user passes `-x' or `--trace', the test suite
1450 # precedes every command with a `set -x'. Since most tests expect a specific
1451 # stderr, if only to confirm that it is empty, the test suite filters ^+ from
1452 # the captured stderr before comparing with the expected stderr. If a command
1453 # spans multiple lines, so will its trace, but a `+' only prefixes the first
1454 # line of that trace:
1465 # In a subset of cases, one could filter such extended shell traces from stderr.
1466 # Since test commands spanning several lines are rare, I chose instead to simply
1467 # not trace COMMANDS that could yield multiple trace lines. Distinguishing such
1468 # COMMANDS became the task at hand.
1470 # These features may cause a shell command to span multiple lines:
1472 # (a) A quoted literal newline.
1476 # M4 is a hostile language for the job of parsing COMMANDS to determine whether
1477 # each literal newline is quoted, so we simply disable tracing for all COMMANDS
1478 # that bear literal newlines.
1480 # (b) A command substitution not subject to word splitting.
1482 # var=$(printf 'foo\nbar')
1484 # echo "`printf 'foo\\nbar`"
1485 # One cannot know in general the number of lines a command substitution will
1486 # yield without executing the substituted command. As such, we disable tracing
1487 # for all COMMANDS containing these constructs.
1489 # (c) A parameter expansion not subject to word splitting.
1494 # Parameter expansions appear in COMMANDS with much greater frequency than do
1495 # newlines and command substitutions, so disabling tracing for all such COMMANDS
1496 # would much more substantially devalue `testsuite -x'. To determine which
1497 # parameter expansions yield multiple lines, we escape all ``', `"', and `\' in
1498 # a copy of COMMANDS and expand that string within double quotes at runtime. If
1499 # the result of that expansion contains multiple lines, the test suite disables
1500 # tracing for the command in question.
1502 # This method leads the test suite to expand some parameters that the shell
1503 # itself will never expand due to single-quotes or backslash escapes. This is
1504 # not a problem for `$foo' expansions, which will simply yield the empty string
1505 # or some unrelated value. A `${...}' expansion could actually form invalid
1506 # shell code, however; consider `${=foo}'. Therefore, we disable tracing for
1507 # all COMMANDS containing `${...}'. This affects few COMMANDS.
1509 # This macro falls in a very hot path; the Autoconf test suite expands it 1640
1510 # times as of this writing. To give a sense of the impact of the heuristics I
1511 # just described, the test suite preemptively disables tracing for 31 of those,
1512 # and 268 contain parameter expansions that require runtime evaluation. The
1513 # balance are always safe to trace.
1515 # _AT_CHECK expands COMMANDS, but the Autoconf language does not provide a way
1516 # to safely expand arbitrary COMMANDS in an argument list, so the below tests
1517 # examine COMMANDS unexpanded.
1518 m4_define([_AT_DECIDE_TRACEABLE],
1521 dnl Examine COMMANDS for a reason to never trace COMMANDS.
1522 [m4_pushdef([at_reason],
1523 m4_cond([m4_eval(m4_index([$1], [`]) >= 0)], [1],
1524 [[a `...` command substitution]],
1525 [m4_eval(m4_index([$1], [$(]) >= 0)], [1],
1526 [[a $(...) command substitution]],
1527 [m4_eval(m4_index([$1], [${]) >= 0)], [1],
1528 [[a ${...} parameter expansion]],
1529 [m4_eval(m4_index([$1], m4_newline) >= 0)], [1],
1530 [[an embedded newline]],
1534 m4_ifval(m4_defn([at_reason]),
1535 [{ echo 'Not enabling shell tracing (command contains ]m4_defn([at_reason])[)'; false; }],
1536 [m4_if(m4_index([$1], [$]), [-1],
1537 dnl We know at build time that tracing COMMANDS is always safe.
1538 [test -n "$at_traceon"],
1539 dnl COMMANDS may contain parameter expansions; expand them at runtime.
1540 [test -n "$at_traceon" && at_func_check_newline "AS_ESCAPE([$1], [`\"])"])])[]dnl
1541 m4_popdef([at_reason])])
1544 # AT_DIFF_STDERR/AT_DIFF_STDOUT
1545 # -----------------------------
1546 # These are subroutines of AT_CHECK. Using indirect dispatch is a tad
1547 # faster than using m4_case, and these are called very frequently.
1548 m4_define([AT_DIFF_STDERR(stderr)],
1549 [echo stderr:; tee stderr <"$at_stderr"])
1550 m4_define([AT_DIFF_STDERR(ignore)],
1551 [echo stderr:; cat "$at_stderr"])
1552 m4_define([AT_DIFF_STDERR(experr)],
1553 [$at_diff experr "$at_stderr" || at_failed=:])
1554 m4_define([AT_DIFF_STDERR()],
1555 [at_func_diff_devnull "$at_stderr" || at_failed=:])
1557 m4_define([AT_DIFF_STDOUT(stdout)],
1558 [echo stdout:; tee stdout <"$at_stdout"])
1559 m4_define([AT_DIFF_STDOUT(ignore)],
1560 [echo stdout:; cat "$at_stdout"])
1561 m4_define([AT_DIFF_STDOUT(expout)],
1562 [$at_diff expout "$at_stdout" || at_failed=:])
1563 m4_define([AT_DIFF_STDOUT()],
1564 [at_func_diff_devnull "$at_stdout" || at_failed=:])
1566 # _AT_CHECK(COMMANDS, [STATUS = 0], STDOUT, STDERR,
1567 # [RUN-IF-FAIL], [RUN-IF-PASS], SHELL_ESCAPE_IO)
1568 # ---------------------------------------------------------
1569 # Worker for AT_CHECK & AT_CHECK_NOESCAPE. The final SHELL-ESCAPE-IO
1570 # argument determines whether the STDOUT & STDERR arguments will be escaped or
1574 # Implementation Details
1575 # ----------------------
1576 # Ideally, we would like to run
1578 # ( $at_traceon; COMMANDS >at-stdout 2> at-stderr )
1580 # but we must group COMMANDS as it is not limited to a single command, and
1581 # then the shells will save the traces in at-stderr. So we have to filter
1582 # them out when checking stderr, and we must send them into the test suite's
1583 # stderr to honor -x properly. Since only the first line of the trace of a
1584 # multiline command starts with a `+', and I know of no straightforward way to
1585 # filter out the unadorned trace lines, we disable shell tracing entirely for
1586 # commands that could span multiple lines.
1588 # Limiting COMMANDS to a single command is not good either, since them
1589 # the user herself would use {} or (), and then we face the same problem.
1591 # But then, there is no point in running
1593 # ( $at_traceon { $1 ; } >at-stdout 2>at-stder1 )
1595 # instead of the simpler
1597 # ( $at_traceon; $1 ) >at-stdout 2>at-stder1
1599 m4_define([_AT_CHECK],
1601 AS_ECHO(["$at_srcdir/AT_LINE: AS_ESCAPE([$1])"])
1602 echo AT_LINE >"$at_check_line_file"
1604 if _AT_DECIDE_TRACEABLE([$1]); then
1605 ( $at_traceon; $1 ) >"$at_stdout" 2>"$at_stder1"
1606 at_func_filter_trace $?
1608 ( :; $1 ) >"$at_stdout" 2>"$at_stderr"
1612 m4_ifdef([AT_DIFF_STDERR($4)], [m4_indir([AT_DIFF_STDERR($4)])],
1613 [echo >>"$at_stderr"; AS_ECHO(["m4_ifval([$7],[AS_ESCAPE([$4])],[$4])"]) | \
1614 $at_diff - "$at_stderr" || at_failed=:])
1615 m4_ifdef([AT_DIFF_STDOUT($3)], [m4_indir([AT_DIFF_STDOUT($3)])],
1616 [echo >>"$at_stdout"; AS_ECHO(["m4_ifval([$7],[AS_ESCAPE([$3])],[$3])"]) | \
1617 $at_diff - "$at_stdout" || at_failed=:])
1618 m4_if([$2], [ignore], [at_func_check_skip],
1619 [at_func_check_status m4_default([$2], [0])]) dnl
1620 $at_status "$at_srcdir/AT_LINE"
1621 AS_IF($at_failed, [$5], [$6])
1622 $at_failed && at_func_log_failure AT_capture_files