#							-*- Autotest -*-

AT_BANNER([Autotest.])

# Copyright (C) 2004-2017, 2020-2023 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 <https://www.gnu.org/licenses/>.


# AT_DATA_AUTOTEST(FILE-NAME, CONTENTS)
# -------------------------------------
# Escape the invalid tokens with @&t@.
m4_define([AT_DATA_AUTOTEST],
[AT_DATA([$1],
[m4_bpatsubst([$2], [\(@.\)\(.@\)\|\(m4\|AS\|AT\)\(_\)\|\(d\)\(nl\)],
              [\1\3\5@&t@\2\4\6])])])


# AT_CHECK_AT_PREP(NAME, SUITE-CODE, [STATUS = 0], [STDOUT], [STDERR],
#                  [DIR = .])
# --------------------------------------------------------------------
# Create a new testsuite named NAME that runs a minimal Autotest test suite,
# SUITE-CODE.  Do not use 'testsuite' for NAME, or the log file it generates
# will overwrite the log that the Autoconf test produces when managing
# this test case.  STATUS, STDOUT, and STDERR pass directly to the AT_CHECK
# that compiles the testsuite.  DIR can specify a particular subdirectory
# where the testsuite should live.
m4_define([AT_CHECK_AT_PREP],
[AT_KEYWORDS([autotest])dnl
dnl overquote AT_dir, to make it easier to use
m4_pushdef([AT_dir], m4_ifval([$6], [[[$6]]], [.]))dnl
dnl
AT_CAPTURE_FILE(AT_dir[/$1.log])dnl
dnl
AT_DATA_AUTOTEST(AT_dir[/package.m4],
[[m4_define([AT_PACKAGE_NAME],      [GNU Nonsense])
m4_define([AT_PACKAGE_TARNAME],   [nonsense])
m4_define([AT_PACKAGE_VERSION],   [1.0])
m4_define([AT_PACKAGE_STRING],    [GNU Nonsense 1.0])
m4_define([AT_PACKAGE_BUGREPORT], [bug-autoconf@gnu.org])
]])
dnl
AT_DATA_AUTOTEST(AT_dir[/$1.at], [$2])
AT_CHECK([cat >m4_default([$6], [.])/atconfig <<EOF
at_testdir=m4_default([$6], [.])
abs_builddir='`pwd`'
at_srcdir=.
abs_srcdir='`pwd`'
at_top_srcdir=.
abs_top_srcdir='`pwd`'
at_top_build_prefix=
abs_top_builddir='`pwd`'
EOF])
m4_ifval([$6], [(cd AT_dir])
AT_CHECK_AUTOM4TE([--language=autotest -o $1 $1.at], [$3], [$4], [$5])
m4_ifval([$6], [)])
m4_popdef([AT_dir])dnl
]) # AT_CHECK_AT_PREP

# AT_CHECK_AT(TITLE, SUITE-CODE, [XFAIL-CONDITION], [STATUS = 0],
#             [STDOUT = ignore], STDERR, [PRE-TEST-CODE],
#             [POST-TEST-CODE], [SUITE-ARGS])
# ---------------------------------------------------------------
# Create a new test named TITLE that runs a minimal Autotest test suite,
# SUITE-CODE with additional SUITE-ARGS, once without and once with
# '-v -x' added.  Call AT_XFAIL_IF with XFAIL-CONDITION.  Pass STDERR
# directly to the AT_CHECK that calls the minimal test suite, STDOUT to
# the AT_CHECK without '-v -x'; ignore stdout for the latter.
# Run PRE-TEST-CODE at the top level after the micro-suite is created, but
# before it is run, and POST-TEST-CODE after the micro-suite has been run.
m4_define([AT_CHECK_AT],
[AT_SETUP([$1])
AT_XFAIL_IF([$3])
AT_CHECK_AT_PREP([micro-suite], [$2])
$7
AT_CHECK([$CONFIG_SHELL ./micro-suite $9],       m4_default([$4], 0),
         m4_default([$5], [ignore]), [$6])
AT_CHECK([$CONFIG_SHELL ./micro-suite -v -x $9], m4_default([$4], 0),
         [ignore], [$6])
$8
AT_CLEANUP
])# AT_CHECK_AT

# AT_CHECK_AT_TEST(TITLE, SUITE-SNIPPET, ...)
# -------------------------------------------
# Wrapper for AT_CHECK_AT that surrounds SUITE-SNIPPET with a boilerplate
# AT_INIT, AT_SETUP, and AT_CLEANUP and passes other arguments verbatim.
m4_define([AT_CHECK_AT_TEST],
[AT_CHECK_AT([$1],
[[
AT_INIT([artificial test suite])
AT_SETUP([my only test])
$2
AT_CLEANUP
]], m4_shift2($@))]) # AT_CHECK_AT_TEST

# AT_CHECK_AT_SYNTAX(TITLE, SUITE, MESSAGE)
# -----------------------------------------
# Create a test named TITLE that tries compiling SUITE with syntax
# errors with autotest.  Expect a failed compilation, and grep for
# MESSAGE occurring within the error output.
m4_define([AT_CHECK_AT_SYNTAX],
[AT_SETUP([$1])
AT_CHECK_AT_PREP([micro-suite], [$2], [1], [], [stderr])
AT_CHECK([grep '$3' stderr], [0], [ignore])
AT_CLEANUP
])# AT_CHECK_AT_SYNTAX


# AT_NO_CMDSUBST
# --------------
m4_define([AT_NO_CMDSUBST],
[if (eval 'foo=$(echo bar) && test "$foo" = bar') >/dev/null 2>&1; then ]dnl
[false; else :; fi])

# AT_CHECK_EGREP(PATTERN, STATUS, COUNT)
# --------------------------------------
# Run grep -E, counting how many times PATTERN occurs in the file 'stdout',
# and expecting exit STATUS and output COUNT.
m4_define([AT_CHECK_EGREP],
[AT_CHECK([$EGREP -c '$1' stdout], [$2], [$3
], [ignore])
])


## -------------- ##
## AT_COPYRIGHT.  ##
## -------------- ##

# Ensure the FSF notice as well as the user-provided one are present
# in the head of the testsuite as well as the --version output.

AT_CHECK_AT([AT@&t@_COPYRIGHT],
[[AT_INIT([Testing AT@&t@_COPYRIGHT])
AT_COPYRIGHT([[This is just a test notice, not a real one, so let's avoid
words that may be matched by scanners for legal things,
causing extra work for distributors.
Multi-line values should be supported.
]])
]], [], [], [stdout], [], [], [
AT_CHECK([grep 'Copyright.*Free Software Foundation' stdout], [], [ignore])
AT_CHECK([grep 'This is just a test notice' stdout], [], [ignore])
AT_CHECK([sed 50q micro-suite | grep 'Copyright.*Free Software Foundation'],
	 [], [ignore])
AT_CHECK([sed 50q micro-suite | grep 'This is just a test notice'],
	 [], [ignore])],
[--version])


## --------- ##
## AT_DATA.  ##
## --------- ##

AT_CHECK_AT_TEST([AT@&t@_DATA], [
AT_CHECK([test -f file1], [1])
AT_DATA([file1])
AT_CHECK([test -f file1 && test ! -s file1])
AT_CHECK([echo hi > file1])
AT_DATA([file1], [[]])
AT_CHECK([test -f file1 && test ! -s file1])
file=file2
AT_DATA([$file], [[$file
]])
AT_CHECK([echo '$file' > file3])
AT_CHECK([cmp file2 file3])
])


## ------------------ ##
## AT_DATA_UNQUOTED.  ##
## ------------------ ##

AT_CHECK_AT_TEST([AT@&t@_DATA_UNQUOTED], [
AT_CHECK([test -f file1], [1])
AT_DATA([file1])
AT_CHECK([test -f file1 && test ! -s file1])
AT_CHECK([echo hi > file1])
AT_DATA([file1], [[]])
AT_CHECK([test -f file1 && test ! -s file1])
file=file2
AT_DATA_UNQUOTED([$file], [[$file
]])
AT_CHECK([echo file2 > file3])
AT_CHECK([cmp file2 file3])
])

## ----------------------------------------------------------- ##
## AT_PREPARE_TESTS, AT_PREPARE_EACH_TEST, AT_TEST_HELPER_FN.  ##
## ----------------------------------------------------------- ##

AT_CHECK_AT([AT@&t@_PREPARE_TESTS],
[[
AT_INIT([artificial test suite])
AT_PREPARE_TESTS([FOO=foo; export FOO])
AT_SETUP([my only test])
AT_CHECK([test x"$FOO" = xfoo])
AT_CLEANUP
]])

AT_CHECK_AT([AT@&t@_PREPARE_EACH_TEST],
[[
AT_INIT([artificial test suite])
AT_PREPARE_EACH_TEST([
if test -z "$at_test_counter"
then at_test_counter=1
else at_test_counter=`expr $at_test_counter + 1`
fi
])
AT_SETUP([test one])
AT_CHECK([test "$at_test_counter" -eq 1])
AT_CLEANUP
AT_SETUP([test two])
AT_CHECK([test "$at_test_counter" -eq 2])
AT_CLEANUP
]])

AT_CHECK_AT([AT@&t@_TEST_HELPER_FN],
[[
AT_INIT([artificial test suite])
AT_TEST_HELPER_FN([helper], [], [], [test x"$][1" = x"$][2"])
AT_SETUP([my only test])
AT_CHECK([ath_fn_helper same same])
AT_CHECK([ath_fn_helper same other], [1])
AT_CLEANUP
]])


## ------------------ ##
## Empty test suite.  ##
## ------------------ ##

# This is not a sensible thing to do, but the user should not get an unhelpful
# error message.
AT_CHECK_AT([Empty test suite],
[[AT_INIT([empty test suite])
]])

AT_CHECK_AT([Banner-only test suite],
[[AT_INIT([empty test suite])
AT_BANNER([banner])
]])

# Next level of emptiness.
AT_CHECK_AT_TEST([Empty test], [])

# And finally, an empty check should not cause a syntax error.
AT_CHECK_AT_TEST([Empty check], [AT_CHECK])

# Check for sensible error messages for common bugs.
AT_CHECK_AT_SYNTAX([AT@&t@_SETUP without AT@&t@_INIT],
[[AT_SETUP([only test])
AT_CHECK([:])
AT_CLEANUP
]], [AT@&t@_SETUP: missing AT@&t@_INIT detected])

AT_CHECK_AT_SYNTAX([AT@&t@_BANNER without AT@&t@_INIT],
[[AT_BANNER([just a banner])
]], [AT@&t@_BANNER: missing AT@&t@_INIT detected])

AT_CHECK_AT_SYNTAX([AT@&t@_CLEANUP without AT@&t@_INIT],
[[AT_CLEANUP
]], [AT@&t@_CLEANUP: missing AT@&t@_INIT detected])

AT_CHECK_AT_SYNTAX([Missing AT@&t@_CLEANUP],
[[AT_INIT([incomplete test suite])
AT_SETUP([only test])
AT_CHECK([:])
]], [missing AT@&t@_CLEANUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_FAIL_IF without AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_FAIL_IF([:])
]], [AT@&t@_FAIL_IF: missing AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_SKIP_IF without AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_SKIP_IF([:])
]], [AT@&t@_SKIP_IF: missing AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_CHECK without AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_CHECK([:])
]], [AT@&t@_CHECK: missing AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_DATA without AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_DATA([file])
]], [AT@&t@_DATA: missing AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_XFAIL_IF without AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_XFAIL_IF([:])
]], [AT@&t@_XFAIL_IF: missing AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_KEYWORDS without AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_KEYWORDS([keyword])
]], [AT@&t@_KEYWORDS: missing AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_CLEANUP without AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_CLEANUP
]], [AT@&t@_CLEANUP: missing AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_BANNER inside AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_SETUP([only test])
AT_BANNER([banner])
AT_CHECK([:])
AT_CLEANUP
]], [AT@&t@_BANNER: nested AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([AT@&t@_SETUP inside AT@&t@_SETUP],
[[AT_INIT([incomplete test suite])
AT_SETUP([only test])
 AT_SETUP([nested test])
 AT_CHECK([:])
 AT_CLEANUP
AT_CHECK([:])
AT_CLEANUP
]], [AT@&t@_SETUP: nested AT@&t@_SETUP detected])

AT_CHECK_AT_SYNTAX([Multiple AT@&t@_INIT],
[[AT_INIT([[suite, take one]])
AT_INIT([repeat])
]], [AT@&t@_INIT: invoked multiple times])

AT_CHECK_AT_SYNTAX([Invalid AT@&t@_TEST_HELPER_FN (spaces)],
[[AT_INIT([buggy test suite])
AT_TEST_HELPER_FN([bad name], [], [], [:])
AT_SETUP([only test])
AT_CHECK([:])
AT_CLEANUP
]], [invalid shell function name "bad name"])

AT_CHECK_AT_SYNTAX([Invalid AT@&t@_TEST_HELPER_FN (substitutions)],
[[AT_INIT([buggy test suite])
AT_TEST_HELPER_FN([variable_${name}], [], [], [:])
AT_SETUP([only test])
AT_CHECK([:])
AT_CLEANUP
]], [invalid shell function name "variable_${name}"])

AT_CHECK_AT_SYNTAX([Multiple AT@&t@_TEST_HELPER_FN],
[[AT_INIT([buggy test suite])
AT_TEST_HELPER_FN([repeated], [], [], [AS_ECHO([repeated 1])])
# The duplicate check only cares about the name.
AT_TEST_HELPER_FN([repeated], [args], [desc], [AS_ECHO([repeated 2])])
AT_SETUP([only test])
AT_CHECK([:])
AT_CLEANUP
]], [helper function "repeated" defined twice])

# Check for tested programs.  autoconf should only appear once.
AT_CHECK_AT([Tested programs],
[[AT_INIT([programs test suite])
AT_TESTED([autoconf autom4te])
AT_TESTED([autoconf])
]], [], [], [], [], [],
[AT_CHECK([[sed -n 's|.*/\([^ /]* --version\)|\1|p' micro-suite.log]], [],
[[autoconf --version
autom4te --version
]])])

AT_CHECK_AT([Startup error messages],
[[AT_INIT([[suite]])
AT_SETUP([only test])
AT_CHECK([:])
AT_CLEANUP
]], [], [], [], [], [],
[AT_CHECK([sed -n '/exec AS_MESSAGE_LOG_FD/q; />&AS_MESSAGE_LOG_FD/p' < micro-suite])])

## ----------------- ##
## Status handling.  ##
## ----------------- ##

AT_CHECK_AT_TEST([Truth],
  [AT_CHECK([:], 0, [], [])])

AT_CHECK_AT_TEST([Fallacy],
  [AT_CHECK([false], [], [], [])],
  [], [1], [], [ignore], [],
  [AT_CHECK([grep failed micro-suite.log], [], [ignore])])

AT_CHECK_AT_TEST([Skip],
  [AT_CHECK([echo output; echo irrelevant >&2; exit 77], 0, [mismatch], [])],
  [], [], [], [], [],
  [AT_CHECK([grep skipped micro-suite.log], [], [ignore])])

AT_CHECK_AT_TEST([Hard fail],
  [AT_CHECK([exit 99])
   AT_CLEANUP
   AT_SETUP([another test])
   AT_XFAIL_IF([:])
   AT_CHECK([exit 99])],
  [], [1], [], [ignore], [],
  [AT_CHECK([grep '2 failed unexpectedly' micro-suite.log], [], [ignore])
   AT_CHECK([grep '^[[12]].*ok' micro-suite.log], [1])])

AT_CHECK_AT_TEST([AT@&t@_FAIL_IF],
  [AT_FAIL_IF([:])
  AT_CLEANUP
  AT_SETUP
  AT_FAIL_IF([false])
  AT_CLEANUP
  AT_SETUP
  AT_FAIL_IF([test x = y])
  AT_CLEANUP
  AT_SETUP
  AT_FAIL_IF([bah])
  AT_CLEANUP
  AT_SETUP
  AT_FAIL_IF([test x = x])
  AT_CLEANUP
  AT_SETUP
  AT_FAIL_IF([test $foo = x])],
  [], [1], [stdout], [ignore], [],
  [AT_CHECK([grep '1 5 failed' stdout], [], [ignore], [ignore])])

AT_CHECK_AT_TEST([AT@&t@_SKIP_IF],
  [AT_SKIP_IF([:])
  AT_CLEANUP
  AT_SETUP
  AT_SKIP_IF([false])
  AT_CLEANUP
  AT_SETUP
  AT_SKIP_IF([test x = y])
  AT_CLEANUP
  AT_SETUP
  AT_SKIP_IF([bah])
  AT_CLEANUP
  AT_SETUP
  AT_SKIP_IF([test x = x])
  AT_CLEANUP
  AT_SETUP
  AT_SKIP_IF([test $foo = x])],
  [], [], [], [], [],
  [AT_CHECK([grep '2.*skipped' micro-suite.log], [], [ignore], [ignore])])

AT_CHECK_AT_TEST([Syntax error],
  [AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([syntax])
   AT_CHECK([if])
   AT_CLEANUP
   AT_SETUP([another test])
   AT_CHECK([:])],
  [], [0], [], [], [],
  [dnl Until we can find a way to avoid catastrophic failure (ash) or
   dnl lack of failure (zsh), skip the rest of this test on such shells.
   echo 'if' > syntax
   AT_CHECK([${CONFIG_SHELL-$SHELL} -c 'case `. ./syntax; echo $?` in
		  0|"") exit 77;;
		esac'], [0], [ignore], [ignore])
   AT_CHECK([${CONFIG_SHELL-$SHELL} ./micro-suite], [1], [ignore], [stderr])
   AT_CHECK([grep "unable to parse test group: 2" stderr], [0], [ignore])],
  [1 3])

AT_CHECK_AT_TEST([errexit],
  [AT_CHECK([false])
   AT_CLEANUP
   AT_SETUP([test that should not be run])
   AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([xpassing test])
   AT_XFAIL_IF([:])
   AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([another test that should not be run])
   AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([skipping test])
   AT_CHECK([exit 77])
   AT_CLEANUP
   AT_SETUP([xfailing test])
   AT_XFAIL_IF([:])
   AT_CHECK([false])
   AT_CLEANUP
   AT_SETUP([a test that should be run])
   AT_CLEANUP
   AT_SETUP([hard failure])
   AT_XFAIL_IF([:])
   AT_CHECK([exit 99])
   AT_CLEANUP
   AT_SETUP([yet another test that should not be run])],
  [], [1], [stdout], [stderr], [],
  [AT_CHECK([test -f micro-suite.log], [1])
   touch micro-suite.log # shut up AT_CAPTURE_FILE.
   AT_CHECK([grep "should not be run" stdout], [1])
   AT_CHECK([grep "1 .* inhibited subsequent" stderr], [], [ignore])
   AT_CHECK([$CONFIG_SHELL ./micro-suite --errexit 3-], [1], [stdout], [stderr])
   AT_CHECK([grep "should not be run" stdout], [1])
   AT_CHECK([grep "1 .* inhibited subsequent" stderr], [], [ignore])
   AT_CHECK([$CONFIG_SHELL ./micro-suite --errexit 5-], [1], [stdout], [stderr])
   AT_CHECK([grep "should be run" stdout], [0], [ignore])
   AT_CHECK([grep "should not be run" stdout], [1])
   AT_CHECK([grep "inhibited subsequent" stderr], [], [ignore])],
  [--errexit])


AT_CHECK_AT_TEST([at_status],
  [AT_CHECK([exit $mystatus], [$expected], [], [],
	    [AT_CHECK([echo run-if-fail: $at_status], [], [ignore])],
	    [AT_CHECK([echo run-if-pass: $at_status], [], [ignore])])
   AT_CLEANUP
   AT_SETUP([test with nested checks])
   AT_CHECK([exit $mystatus], [$expected], [], [],
	    [AT_CHECK([exit $mystatus], [$expected], [], [],
		      [AT_CHECK([echo inner run-if-fail: $at_status], [],
				[ignore])])])],
  [], [], [stdout], [],
[], [
AT_CHECK([grep 'inner run-if-fail: 42' stdout], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -x -v 1 mystatus=0 expected=0], [], [stdout])
AT_CHECK([grep 'run-if-pass: 0' stdout], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -x -v 1 mystatus=42 expected=0], [], [stdout])
AT_CHECK([grep 'run-if-fail: 42' stdout], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -x -v 1 mystatus=0 expected=42], [], [stdout])
AT_CHECK([grep 'run-if-fail: 0' stdout], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -x -v 1 mystatus=42 expected=42], [], [stdout])
AT_CHECK([grep 'run-if-pass: 42' stdout], [], [ignore])
],
[-v mystatus=42 expected=1
])


AT_CHECK_AT_TEST([AT@&t@_CHECK execution environment],
  [dnl The first test should fail, so we enter RUN-IF-FAIL.
   AT_CHECK([test "$state" != before], [], [], [],
	    [state=run-if-fail
	     AT_CHECK([:]) dnl need this so we do not bail out at this point.
            ])
   dnl This should pass, so we enter RUN-IF-PASS.
   AT_CHECK([test "$state" = run-if-fail], [], [], [], [],
	    [state=run-if-pass])
   AT_CHECK([test "$state" = run-if-pass])
   dnl However, COMMANDS are run inside a subshell, so do not change state.
   AT_CHECK([state=broken; false], [], [], [],
	    [AT_CHECK([test "$state" = run-if-pass])])
   AT_CHECK([state=broken], [], [], [], [],
	    [AT_CHECK([test "$state" = run-if-pass])])
  ],
  [], [], [], [], [], [], [state=before])


AT_CHECK_AT_TEST([unquoted output],
  [m4_define([backtick], [`])
   a=a
   AT_CHECK_UNQUOTED([echo 'a"b  backtick`'], [],
     [${a}"`echo 'b  '`\`\backtick]m4_newline)],
  [], [], [], [], [AT_KEYWORDS([AT@&t@_CHECK_UNQUOTED])])

AT_CHECK_AT_TEST([Trace output],
  [AT_CHECK([echo some longer longer longer command piped | ]dnl
	    [sed 's,into some other longer longer longer command,,'],
	    [], [some longer longer longer command piped
])])

AT_CHECK_AT([Logging],
  [[AT_INIT([artificial test suite])
    dnl intentionally write failing tests, to see what gets logged
    AT_SETUP([one])
    AT_CHECK([echo magicstring01], [1], [ignore])
    AT_CLEANUP
    AT_SETUP([two])
    AT_CHECK([echo magicstring02 >&2], [1], [], [ignore])
    AT_CLEANUP
    AT_SETUP([three])
    AT_CHECK([echo magicstring03], [1], [ignore-nolog])
    AT_CLEANUP
    AT_SETUP([four])
    AT_CHECK([echo magicstring04 >&2], [1], [], [ignore-nolog])
    AT_CLEANUP
    AT_SETUP([five])
    AT_CHECK([echo magicstring05], [1], [stdout])
    AT_CLEANUP
    AT_SETUP([six])
    AT_CHECK([echo magicstring06 >&2], [1], [], [stderr])
    AT_CLEANUP
    AT_SETUP([seven])
    AT_CHECK([echo magicstring07], [1], [stdout-nolog])
    AT_CLEANUP
    AT_SETUP([eight])
    AT_CHECK([echo magicstring08 >&2], [1], [], [stderr-nolog])
    AT_CLEANUP
    AT_SETUP([nine])
    echo magicstring09 > expout
    AT_CHECK([echo magicstring09], [1], [expout])
    AT_CLEANUP
    AT_SETUP([ten])
    echo magicstring10 > experr
    AT_CHECK([echo magicstring10 >&2], [1], [], [experr])
    AT_CLEANUP
]], [], [1], [], [ignore], [],
  [AT_CHECK([$CONFIG_SHELL ./micro-suite], [1], [ignore-nolog], [ignore-nolog])
   AT_CHECK([grep '^magicstring' micro-suite.log], [],
[[magicstring01
magicstring02
magicstring05
magicstring06
]])])


AT_CHECK_AT([Binary output],
  [[AT_INIT([artificial test suite])
    AT_SETUP([pass: no trailing newline])
    AT_CHECK([printf short], [0], [stdout-nolog])
    AT_CHECK([cat stdout], [0], [[short]])
    AT_CLEANUP
    AT_SETUP([pass: non-printing characters])
    AT_CHECK([printf '\1\n' >&2], [0], [], [stderr-nolog])
    printf '\1\n' > expout
    AT_CHECK([cat stderr], [0], [expout])
    AT_CLEANUP
    AT_SETUP([pass: long lines])
    # 5000 bytes in str
    str=..........
    str=$str$str$str$str$str$str$str$str$str$str
    str=$str$str$str$str$str$str$str$str$str$str
    str=$str$str$str$str$str
    AT_CHECK_UNQUOTED([echo $str], [0], [[$str]m4_newline])
    AT_CLEANUP
    AT_SETUP([fail: no trailing newline])
    AT_CHECK([printf short], [0], [stdout-nolog])
    AT_CHECK([cat stdout], [0], [[long]])
    AT_CLEANUP
    AT_SETUP([fail: non-printing characters])
    AT_CHECK([printf '\1\n' >&2], [0], [], [stderr-nolog])
    printf '\2\n' > expout
    AT_CHECK([cat stderr], [0], [expout])
    AT_CLEANUP
    AT_SETUP([fail: long lines])
    # 5000 bytes in str
    str=..........
    str=$str$str$str$str$str$str$str$str$str$str
    str=$str$str$str$str$str$str$str$str$str$str
    str=$str$str$str$str$str
    AT_CHECK_UNQUOTED([echo x$str], [0], [[${str}x]m4_newline])
    AT_CLEANUP
]], [], [0], [], [], [],
  [AT_CHECK([$CONFIG_SHELL ./micro-suite 4], [1], [ignore], [ignore])
   AT_CHECK([$CONFIG_SHELL ./micro-suite 5], [1], [ignore], [ignore])
   AT_CHECK([$CONFIG_SHELL ./micro-suite 6], [1], [ignore], [ignore])], [1-3])


AT_CHECK_AT_TEST([Cleanup],
  [AT_CHECK([test ! -f cleanup.success && test ! -f cleanup.failure])
   AT_XFAIL_IF([$xfail])
   AT_CHECK_UNQUOTED([exit $value], [ignore], [$output],
     [], [touch cleanup.failure], [touch cleanup.success])],
  [], [], [], [],
  [AT_KEYWORDS([AT@&t@_CHECK_UNQUOTED])
    output=; export output],
  [AT_CHECK([test -d micro-suite.dir/1])
   AT_CHECK([test -f micro-suite.dir/1/cleanup.success])
   AT_CHECK([test ! -f micro-suite.dir/1/cleanup.failure])

   AT_CHECK([$CONFIG_SHELL ./micro-suite -d xfail=false value=1], [], [ignore])
   AT_CHECK([test -f micro-suite.dir/1/cleanup.success])
   AT_CHECK([test ! -f micro-suite.dir/1/cleanup.failure])

   AT_CHECK([$CONFIG_SHELL ./micro-suite xfail=: value=0],
     [1], [ignore], [ignore])
   AT_CHECK([test -f micro-suite.dir/1/cleanup.success])
   AT_CHECK([test ! -f micro-suite.dir/1/cleanup.failure])

   AT_CHECK([$CONFIG_SHELL ./micro-suite -d xfail=false value=1 output=mismatch],
     [1], [ignore], [ignore])
   AT_CHECK([test ! -f micro-suite.dir/1/cleanup.success])
   AT_CHECK([test -f micro-suite.dir/1/cleanup.failure])

   AT_CHECK([$CONFIG_SHELL ./micro-suite -d xfail=false value=77], [], [ignore])
   AT_CHECK([test ! -f micro-suite.dir/1/cleanup.success])
   AT_CHECK([test ! -f micro-suite.dir/1/cleanup.failure])

   AT_CHECK([$CONFIG_SHELL ./micro-suite -d xfail=false value=99],
     [1], [ignore], [ignore])
   AT_CHECK([test ! -f micro-suite.dir/1/cleanup.success])
   AT_CHECK([test ! -f micro-suite.dir/1/cleanup.failure])
  ], [-d xfail=false value=0])

## ----------------------------------------------------- ##
## Newlines and command substitutions in test commands.  ##
## ----------------------------------------------------- ##

AT_CHECK_AT_TEST([Literal multiline command],
  [AT_CHECK([echo Auto'
'conf], 0, [Auto
conf
], [])])

AT_CHECK_AT_TEST([Multiline parameter expansion],
  [FOO='one
two'
   AT_CHECK([echo "$FOO"], 0, [one
two
], [])])

AT_CHECK_AT_TEST([Backquote command substitution],
  [AT_CHECK([echo `echo hi`], 0, [hi
], [])])


AT_CHECK_AT_TEST([Multiline backquote command substitution],
  [AT_DATA([myfile],[foo
bar
])
   AT_CHECK([echo "`cat myfile`"], 0, [foo
bar
], [])])

AT_CHECK_AT_TEST([Parenthetical command substitution],
  [AT_CHECK([echo $(echo hi)], 0, [hi
], [])],
  [AT_NO_CMDSUBST])

AT_CHECK_AT_TEST([Multiline parenthetical command substitution],
  [AT_DATA([myfile],[foo
bar
])
   AT_CHECK([echo "$(cat myfile)"], 0, [foo
bar
], [])],
  [AT_NO_CMDSUBST])


AT_CHECK_AT_TEST([Shell comment in command],
  [my_echo=echo
   AT_CHECK([$my_echo one [#] two], [], [one
])])


## ------------------------- ##
## ${...} in test commands.  ##
## ------------------------- ##

# If this invalid parameter expansion capsizes the test suite, the entire
# AT_SETUP ... AT_CLEANUP subshell will exit, and the commands it runs will
# appear to have succeeded.  Therefore, we verify a failing test case.

AT_CHECK_AT_TEST([Invalid brace-enclosed parameter expansion],
  [AT_CHECK([echo '${=invalid}'], 0, [wrong])], [false], 1, ignore, ignore)


## ---------------------------- ##
## M4 macros in test commands.  ##
## ---------------------------- ##

AT_CHECK_AT_TEST([Multiline command from M4 expansion],
  [m4_define([GNU], ['foo
bar'])
   AT_CHECK([echo GNU], 0, [foo
bar
], [])])

AT_CHECK_AT_TEST([Double-M4-quoted command],
  [m4_define([GNU], ['foo
bar'])
   AT_CHECK([[echo GNU]], 0, [[GNU
]], [])])


AT_CHECK_AT_TEST([Metacharacters in command from M4 expansion],
  [m4_define([GNU], [\"`])
   AT_CHECK([echo '\"`' [GNU] 'GNU'], 0, [GNU [G][NU] [\"`
]], [])])


## -------------------------------------- ##
## Backslash-<newline> in test commands.  ##
## -------------------------------------- ##

AT_CHECK_AT_TEST([BS-newline in command],
  [AT_CHECK([echo Auto"\
"conf], 0, [Autoconf
], [])])

AT_CHECK_AT_TEST([^BS-newline in command],
  [AT_CHECK([\
echo GNU], 0, [GNU
], [])])

AT_CHECK_AT_TEST([BSx641-newline in command],
  [AT_CHECK([printf '%s\n' Auto"\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
"conf], 0, [Auto\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\conf
], [])])

AT_CHECK_AT_TEST([BS-BS-newline in command],
  [AT_CHECK([printf '%s\n' Auto"\\
"conf], 0, [Auto\
conf
], [])])

# A '^BS-BS-newline in command' test will run a command named '\'.  No, thanks.

AT_CHECK_AT_TEST([BSx640-newline in command],
  [AT_CHECK([printf '%s\n' Auto"\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
"conf], 0, [Auto\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
conf
], [])])

# This command has both escaped and unescaped newlines.
AT_CHECK_AT_TEST([Newline-CODE-BS-newline in command],
  [AT_CHECK([printf '%s\n' Auto'
'co\
nf], 0, [Auto
conf
], [])])

AT_CHECK_AT_TEST([Single-quote-BS-newline in command],
  [AT_CHECK([printf '%s\n' Auto'\
'conf], 0, [Auto\
conf
], [])])

AT_CHECK_AT_TEST([Single-quote-newline-BS-newline in command],
  [AT_CHECK([printf '%s\n' Auto'
\
'conf], 0, [Auto
\
conf
], [])])


## ----------------- ##
## Input from stdin. ##
## ----------------- ##

AT_SETUP([Input from stdin])

AT_CHECK_AT_PREP([micro-suite],
[[AT_INIT
AT_SETUP([please enter hello<RETURN><EOF>])
AT_CHECK([cat], [], [hello
])
AT_CLEANUP
]])

AT_CHECK([echo hello | $CONFIG_SHELL ./micro-suite], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite </dev/null], [1], [ignore], [ignore])

AT_CLEANUP


## ------------------------------- ##
## Funny characters in test names. ##
## ------------------------------- ##

# AT_CHECK_AT_TITLE(TITLE, TITLE-TO-TEST, EXPANDED-TITLE-TO-TEST,
#                   [XFAIL-CONDITION], [COLUMN = 53])
# ---------------------------------------------------------------
# Create a new test named TITLE that runs an Autotest test suite
# comprised of a trivial test named TITLE-TO-TEST, which expands
# to EXPANDED-TITLE-TO-TEST.  XFAIL-CONDITION passes verbatim to
# AT_CHECK_AT.  Verify that 'ok' prints at COLUMN.
m4_define([AT_CHECK_AT_TITLE],
[AT_CHECK_AT([$1],
[[
m4_define([macro_name],         [[macro_expanded]])
m4_define([macro_expanded],     [[macro_overexpanded]])
m4_define([macro_backquote],    [`])
m4_define([macro_single_quote], ['])
m4_define([macro_double_quote], ["])
]]dnl restore font-lock: "
[[m4_define([macro_backslash],  [\])
m4_define([macro_echo],         [$][1])
AT_INIT([artificial test suite])
AT_SETUP([$2])
AT_CHECK([:])
AT_CLEANUP
]], [$4], [], [], [], [],
dnl This sed script checks for two things - that the output is properly
dnl expanded, and that the 'ok' starts on the right column.
[AT_KEYWORDS([m4@&t@_expand])
AT_CHECK([[$CONFIG_SHELL ./micro-suite |
	    sed -n '/^  1:/{
h
s/[^:]*: \(.*[^	 ]\)[	 ]*ok.*/\1/p
x
s/^.\{]]]m4_default($5, 53)[[[\}ok.*/ok/p
}']],,
[[$3
ok
]])
dnl This sed script checks for two things - that -v output doesn't have
dnl an empty $at_srcdir expansion, and that the 'testing ...' line
dnl contains the test group title.
AT_CHECK([[$CONFIG_SHELL ./micro-suite -v |
	    sed -n 's/.*testing \(.*\) \.\.\./\1/p; /^\/micro-suite\.at:/p']],,
[[$3
]])
AT_CHECK([[$CONFIG_SHELL ./micro-suite -l |
	   sed -n 's/.*[0-9]: [^	 ][^	 ]*[	 ][	 ]*\(.*[^	 ]\)[	 ]*/\1/p']],,
[[$3
]])
AT_CHECK([[sed -n 's/[^.]*\. \(.*\) ([^)]*): ok.*/\1/p' micro-suite.log]],,
[[$3
]])
])])

m4_define([AT_CHECK_AT_TITLE_CHAR],
[AT_CHECK_AT_TITLE([$1 in a test title], [A $2 in my name],
                   [A ]m4_ifval([$3], [[$3]], [[$2]])[ in my name], $4, $5)])

AT_CHECK_AT_TITLE_CHAR([Backquote],     [`])
AT_CHECK_AT_TITLE_CHAR([Single-quote],  ['])
AT_CHECK_AT_TITLE_CHAR([Double-quote],  ["])
dnl restore font-lock: "
AT_CHECK_AT_TITLE_CHAR([Backslash],     [\])
AT_CHECK_AT_TITLE_CHAR([Brackets],   [[[]]], [[]])
AT_CHECK_AT_TITLE_CHAR([Left bracket],  [@<:@], [@<:@])
AT_CHECK_AT_TITLE_CHAR([Right bracket], [@:>@], [@:>@])
AT_CHECK_AT_TITLE_CHAR([Quoted pound],  [[#]], [#])
AT_CHECK_AT_TITLE_CHAR([Pound],         [#])
AT_CHECK_AT_TITLE_CHAR([Quoted comma],  [[,]], [,])
AT_CHECK_AT_TITLE_CHAR([Comma],         [,])
dnl this test also hits quadrigraphs for ()
AT_CHECK_AT_TITLE_CHAR([Parentheses],   [(@{:@)@:}@], [(())])
AT_CHECK_AT_TITLE_CHAR([Left paren],    [[(]], [(])
AT_CHECK_AT_TITLE_CHAR([Right paren],   [[)]], [)])

AT_CHECK_AT_TITLE_CHAR([Quoted Macro], [[macro_name]], [macro_name])
AT_CHECK_AT_TITLE_CHAR([Macro],        [macro_name],   [macro_expanded])
AT_CHECK_AT_TITLE_CHAR([Macro with backquote],       [macro_backquote], [`])
AT_CHECK_AT_TITLE_CHAR([Macro with single-quote], [macro_single_quote], ['])
AT_CHECK_AT_TITLE_CHAR([Macro with double-quote], [macro_double_quote], ["])
dnl restore font-lock: "
AT_CHECK_AT_TITLE_CHAR([Macro with backslash],       [macro_backslash], [\])
AT_CHECK_AT_TITLE_CHAR([Macro echoing macro], [macro_echo([macro_name])],
                       [macro_expanded])
AT_CHECK_AT_TITLE_CHAR([Macro echoing single-quote], [macro_echo(['])], ['])
AT_CHECK_AT_TITLE_CHAR([Long test title], [0123456789012345678901234567890123])
AT_CHECK_AT_TITLE_CHAR([Longer test title],
		       [01234567890123456789012345678901234], [], [], [54])


## ----------------------- ##
## Long test source lines. ##
## ----------------------- ##

# Create a test file that has more than 99 words in a line, for Solaris awk.
# While at that, try out the limit of 2000 bytes in a text file line.

AT_CHECK_AT_TEST([Long test source lines],
[m4_for([nnn], [1], [999], [], [: ])
AT_CHECK([:])
], [], [], [], [ignore], [],
[AT_CHECK([$CONFIG_SHELL ./micro-suite -k skipalltests], [], [ignore], [ignore])
])


## ---------------- ##
## Huge testsuite.  ##
## ---------------- ##

# Ensure we don't hit line length limits with large test suites.

AT_CHECK_AT_TEST([Huge testsuite],
[m4_for([nnn], [1], [1999], [],
[AT_CLEANUP
AT_SETUP([test ]nnn)
])
], [], [], [], [ignore], [], [], [1999])


## ----------------- ##
## Debugging a test. ##
## ----------------- ##

AT_CHECK_AT_TEST([Debugging a successful test],
  [AT_CHECK([:])], [], [], [], [ignore], [],
[# Without options, when all tests pass, no test directory should exist.
AT_CHECK([test -d micro-suite.dir/1 && exit 42
          $CONFIG_SHELL ./micro-suite -d 1], [], [ignore], [ignore])
# Running with -d should leave a reproducible test group.
# Also, running the test script from the test group locks the
# directory from removal on some platforms; the script should still be
# able to run even if rmdir fails.
AT_CHECK([(cd micro-suite.dir/1 && ./run)], [], [ignore], [ignore])
# Running a debugging script implies -d.
AT_CHECK([(cd micro-suite.dir/1 && ./run)], [], [ignore], [ignore])
])

AT_CHECK_AT_TEST([Debugging script and environment],
  [AT_CHECK([test "$MY_VAR" = pass || exit 42])],
  [], [1], [], [ignore], [], [
# Changing environment outside of debugging script is not preserved.
AT_CHECK([(cd micro-suite.dir/1 && MY_VAR=pass ./run)],
         [0], [ignore], [ignore])
AT_CHECK([(cd micro-suite.dir/1 && ./run)],
         [1], [ignore], [ignore])
# Changing environment as argument to debugging script is preserved.
AT_CHECK([(cd micro-suite.dir/1; ./run MY_VAR=pass)],
         [0], [ignore], [ignore])
AT_CHECK([(cd micro-suite.dir/1; ./run)],
         [0], [ignore], [ignore])
])

# The run script must still be valid when shell metacharacters are passed
# in via an environment option.
AT_CHECK_AT_TEST([Debugging a failed test],
  [AT_CHECK([test "$MY_VAR" = "one space" || exit 42])],
  [], [1], [], [ignore], [], [
AT_CHECK([(cd micro-suite.dir/1 && ./run MY_VAR='two  spaces')],
         [1], [ignore], [ignore])
AT_CHECK([(cd micro-suite.dir/1 && ./run MY_VAR='one space')],
         [0], [ignore], [ignore])
])


# Setting default variable values via atlocal.
AT_CHECK_AT_TEST([Using atlocal],
  [AT_CHECK([test "x$MY_VAR" = "xodd;  'string" || exit 42])],
  [], [1], [ignore], [ignore], [], [
dnl check that command line can set variable
AT_CHECK([$CONFIG_SHELL ./micro-suite MY_VAR="odd;  'string"], [0], [ignore])
dnl check that command line overrides environment
AT_CHECK([MY_VAR="odd;  'string" $CONFIG_SHELL ./micro-suite MY_VAR=unset],
         [1], [ignore], [ignore])
dnl check that atlocal can give it a default
AT_CHECK([cat <<EOF >atlocal
MY_VAR="odd;  'string"
export MY_VAR
dnl Also populate enough of atlocal to do what atconfig normally does.
at_testdir=.
abs_builddir='`pwd`'
at_srcdir=.
abs_srcdir='`pwd`'
at_top_srcdir=.
abs_top_srcdir='`pwd`'
at_top_build_prefix=
abs_top_builddir='`pwd`'
EOF
])
AT_CHECK([$CONFIG_SHELL ./micro-suite], [0], [ignore])
dnl check that atlocal overrides environment
AT_CHECK([MY_VAR=unset $CONFIG_SHELL ./micro-suite], [0], [ignore])
dnl check that command line overrides atlocal
AT_CHECK([$CONFIG_SHELL ./micro-suite MY_VAR=], [1], [ignore], [ignore])
dnl check that syntax error is detected
AT_CHECK([$CONFIG_SHELL ./micro-suite =], [1], [], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite 1=2], [1], [], [ignore], [ignore])
])


# Controlling where the testsuite is run.
AT_CHECK_AT_TEST([Choosing where testsuite is run],
  [AT_CHECK([:])], [], [], [], [], [], [
dnl AT_CHECK_AT_TEST tests the default of running in '.'.
AT_CHECK([$CONFIG_SHELL ./micro-suite --clean])
AT_CHECK([test -f micro-suite.log], [1])
AT_CHECK([test -d micro-suite.dir], [1])
AT_CHECK([mkdir sub1 sub2])
dnl check specifying a different relative path to run in.
AT_CHECK([$CONFIG_SHELL ./micro-suite -C sub1], [0], [ignore], [])
AT_CHECK([test -f micro-suite.log], [1])
AT_CHECK([test -f sub1/micro-suite.log], [0])
AT_CHECK([test -d micro-suite.dir], [1])
AT_CHECK([test -d sub1/micro-suite.dir], [0])
AT_CHECK([$CONFIG_SHELL ./micro-suite -C sub1 --clean])
AT_CHECK([test -f sub1/micro-suite.log], [1])
AT_CHECK([test -d sub1/micro-suite.dir], [1])
dnl check specifying an absolute path to run in.
AT_CHECK([$CONFIG_SHELL ./micro-suite --directory="`pwd`/sub2"],
         [0], [ignore], [])
AT_CHECK([test -f micro-suite.log], [1])
AT_CHECK([test -f sub2/micro-suite.log], [0])
AT_CHECK([$CONFIG_SHELL ./micro-suite --clean --directory="`pwd`/sub2"])
AT_CHECK([test -f sub2/micro-suite.log], [1])
AT_CHECK([test -f sub2/micro-suite.dir], [1])
dnl check for failure detection with bad, missing, or empty directory.
AT_CHECK([$CONFIG_SHELL ./micro-suite -C nonesuch || exit 1], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -C ''], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -C - || exit 1], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -C], [1], [ignore], [ignore])
dnl check that --help overrides bad directory selection.
AT_CHECK([$CONFIG_SHELL ./micro-suite -C nonesuch --help], [0], [ignore], [])
])


# --recheck.
AT_CHECK_AT_TEST([recheck],
  [AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([failing test])
   AT_CHECK([exit 1])
   AT_CLEANUP
   AT_SETUP([xpassing test])
   AT_XFAIL_IF([:])
   AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([xfailing test])
   AT_XFAIL_IF([:])
   AT_CHECK([exit 1])
], [], [], [], [], [], [
AT_CHECK([$CONFIG_SHELL ./micro-suite --recheck], [0], [stdout])
AT_CHECK([grep "0 tests were successful" stdout], [0], [ignore])

AT_CHECK([$CONFIG_SHELL ./micro-suite], [1], [ignore], [ignore])
AT_CHECK([grep 'only test' micro-suite.log], [0], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite --recheck], [1], [ignore], [ignore])
AT_CHECK([grep 'only test' micro-suite.log], [1])
AT_CHECK([grep 'xfailing' micro-suite.log], [1])
AT_CHECK([grep 'failing test' micro-suite.log], [0], [ignore])
AT_CHECK([grep 'xpassing test' micro-suite.log], [0], [ignore])

AT_CHECK([$CONFIG_SHELL ./micro-suite --clean], [0])
AT_CHECK([test -f micro-suite.log], [1])

dnl check specifying a different relative path to run in.
AT_CHECK([mkdir sub1])
AT_CHECK([$CONFIG_SHELL ./micro-suite -C sub1], [1], [ignore], [ignore])
AT_CHECK([test -f micro-suite.log], [1])
AT_CHECK([test -f sub1/micro-suite.log], [0])
AT_CHECK([$CONFIG_SHELL ./micro-suite -C sub1 --recheck --list], [0], [stdout])
AT_CHECK([grep 'only test' stdout], [1])
AT_CHECK([grep 'xfailing test' stdout], [1])
AT_CHECK([grep 'failing test' stdout], [0], [ignore])
AT_CHECK([grep 'xpassing test' stdout], [0], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -C sub1 --recheck], [1], [ignore],
	 [ignore])
AT_CHECK([grep 'failing test' sub1/micro-suite.log], [0], [ignore])
AT_CHECK([grep 'xpassing test' sub1/micro-suite.log], [0], [ignore])
], [1 4])


## -------- ##
## Banners. ##
## -------- ##
AT_SETUP([Banners])

AT_CHECK_AT_PREP([b],
[[AT_INIT
AT_SETUP(zero)# 1
AT_CHECK(:)
AT_CLEANUP

AT_BANNER([first])
AT_SETUP(one a)# 2
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(one b)# 3
AT_CHECK(:)
AT_CLEANUP

AT_BANNER()
AT_SETUP(two a)# 4
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(two b)# 5
AT_CHECK(:)
AT_CLEANUP

AT_BANNER([second])
AT_SETUP(three a)# 6
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(three b)# 7
AT_CHECK(:)
AT_CLEANUP
]])

# AT_CHECK_BANNERS(TESTSUITE-OPTIONS, PATTERN1, COUNT1, PATTERN2, COUNT2)
m4_define([AT_CHECK_BANNERS],
[AT_CHECK([$CONFIG_SHELL ./b $1], [], [stdout])
AT_CHECK_EGREP([$2], m4_if([$3], [0], [1], [0]), [$3])
AT_CHECK_EGREP([$4], m4_if([$5], [0], [1], [0]), [$5])
])

AT_CHECK_BANNERS([],		[first], [1], [second], [1])
AT_CHECK_BANNERS([-k zero],	[first], [0], [second], [0])
AT_CHECK_BANNERS([1],		[first], [0], [second], [0])
AT_CHECK_BANNERS([-2],		[first], [1], [second], [0])
AT_CHECK_BANNERS([-3],		[first], [1], [second], [0])
AT_CHECK_BANNERS([-k one],	[first], [1], [second], [0])
AT_CHECK_BANNERS([3-4],		[first], [1], [second], [0])
dnl There should be an empty line separating the first category from the
dnl unnamed one.
AT_CHECK([sed -n '/one b/,/two a/p' stdout | grep '^$'], [0], [ignore])
AT_CHECK_BANNERS([3-6],		[first], [1], [second], [1])
AT_CHECK_BANNERS([4-6],		[first], [0], [second], [1])
AT_CHECK_BANNERS([3-],		[first], [1], [second], [1])
AT_CHECK_BANNERS([-k a],	[first], [1], [second], [1])
AT_CHECK_BANNERS([4],		[first], [0], [second], [0])
AT_CHECK_BANNERS([4-],		[first], [0], [second], [1])
AT_CHECK_BANNERS([-k two],	[first], [0], [second], [0])
AT_CHECK_BANNERS([1 4],		[first], [0], [second], [0])
AT_CHECK_BANNERS([-k three],	[first], [0], [second], [1])
AT_CHECK_BANNERS([5],		[first], [0], [second], [0])
AT_CHECK_BANNERS([5-],		[first], [0], [second], [1])
AT_CLEANUP


## --------- ##
## Keywords. ##
## --------- ##
AT_SETUP([Keywords and ranges])

AT_CHECK_AT_PREP([k],
[[AT_INIT
AT_SETUP(none) # 01
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(first) # 02
AT_KEYWORDS(key1)
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(second) # 03
AT_KEYWORDS(key2)
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(both) # 04
AT_KEYWORDS([key1 key2])
AT_KEYWORDS([m4_echo([Key1])])
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(test5) # 05
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(test6) # 06
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(test7) # 07
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(test8) # 08
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(test9) # 09
AT_CHECK(:)
AT_CLEANUP
AT_SETUP(test10) # 10
AT_CHECK(:)
AT_CLEANUP
]])
dnl check that AT_KEYWORDS does not duplicate words
AT_CHECK([grep -i 'key1.*key1' k], [1])
dnl check that -k requires an argument
AT_CHECK([$CONFIG_SHELL ./k -k], [1], [], [ignore])

# AT_CHECK_KEYS(TESTSUITE-OPTIONS, PATTERN1, COUNT1, PATTERN2, COUNT2)
m4_define([AT_CHECK_KEYS],
[AT_CHECK([$CONFIG_SHELL ./k $1], 0, [stdout])
AT_CHECK_EGREP([$2], 0, [$3])
AT_CHECK_EGREP([$4], 1, [$5])
])

AT_CHECK_KEYS([-k key1], [first|both], [2], [none|second], [0])
AT_CHECK_KEYS([-k key2], [second|both], [2], [none|first], [0])
AT_CHECK_KEYS([-k key1,key2], [both], [1], [none|first|second], [0])
AT_CHECK_KEYS([-k key1 -k key2], [first|second|both], [3], [none], [0])
AT_CHECK_KEYS([-k '!key1'], [none|second], [2], [first|both], [0])
AT_CHECK_KEYS([-k '!key2'], [none|first], [2], [second|both], [0])
AT_CHECK_KEYS([-k '!key1,key2'], [second], [1], [none|first|both], [0])
AT_CHECK_KEYS([-k 'key1,!key2'], [first], [1], [none|second|both], [0])
AT_CHECK_KEYS([-k '!key1,!key2'], [none], [1], [first|second|both], [0])
AT_CHECK_KEYS([-k '!key1' -k KEY2], [none|second|both], [3], [first], [0])
AT_CHECK_KEYS([-k key1 -k '!key2'], [none|first|both], [3], [second], [0])
AT_CHECK_KEYS([-k '!KEY1' -k '!key2'], [none|first|second], [3], [both], [0])

AT_CHECK_KEYS([-k none], [none], [1], [first|second|both], [0])
AT_CHECK_KEYS([-k key1,both], [both], [1], [none|first|second], [0])
AT_CHECK_KEYS([-k key1 -k both], [first|both], [2], [none|second], [0])
AT_CHECK_KEYS([-k none,first], [successful], [1], [none|first|second|both], [0])
AT_CHECK_KEYS([-k none,first,second,both], [successful], [1], [none|first|second|both], [0])
AT_CHECK_KEYS([-k !none,first], [first], [1], [none|second|both], [0])

AT_CHECK_KEYS([-k '.*eco.*'], [second], [1], [none|first|both], [0])
AT_CHECK_KEYS([-k 'ECO'], [successful], [1], [none|first|second|both], [0])
AT_CHECK_KEYS([-k '.*eco'], [successful], [1], [none|first|second|both], [0])
AT_CHECK_KEYS([-k 'eco.*'], [successful], [1], [none|first|second|both], [0])
AT_CHECK_KEYS([-k 'fir.*'], [first], [1], [none|second|both], [0])

AT_CHECK_KEYS([1-2], [none|first], [2], [second|both], [0])
AT_CHECK_KEYS([01-002 08], [none|first], [2], [second|both], [0])
AT_CHECK_KEYS([1-3 2-1], [none|first|second], [3], [both], [0])
AT_CHECK_KEYS([-3], [none|first|second], [3], [both], [0])
AT_CHECK_KEYS([4-], [both], [1], [none|first|second], [0])
AT_CHECK_KEYS([010], [test10], [1], [none|first|second|both], [0])
AT_CHECK_KEYS([-k second 4-], [second|both], [2], [none|first], [0])

AT_CHECK([$CONFIG_SHELL ./k 0], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./k 0-], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./k -0], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./k 11], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./k 11-], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./k 1-011], [1], [ignore], [ignore])
AT_CHECK([$CONFIG_SHELL ./k -k nonexistent], [0], [ignore])

AT_CHECK_KEYS([--list -k nonexistent], [KEYWORDS], [1], [first|second|both], [0])
AT_CHECK_KEYS([--list 1], [none], [1], [first|second|both], [0])
AT_CHECK_KEYS([--list 01], [none], [1], [first|second|both], [0])
AT_CHECK_KEYS([--list -k none -k first], [none|first], [2], [second|both], [0])
AT_CLEANUP


## ----------------- ##
## Keyword wrapping. ##
## ----------------- ##
AT_SETUP([Keyword wrapping])

AT_CHECK_AT_PREP([k],
[[AT_INIT
AT_SETUP([test])
AT_KEYWORDS([a1 b1 c1 d1 e1 f1 g1 h1 i1 j1 k1 l1 m1 n1 o1 p1 q1 r1 s1 t1])
AT_KEYWORDS([u1 v1 w1 x1 y1 z1])
AT_KEYWORDS([a b c d e f g h i j k l m n o p q r s t u v w x y z])
AT_CLEANUP
AT_SETUP([test with long keywords])
AT_KEYWORDS(
[this-is-a-long-keyword-that-cannot-be-wrapped-so-we-exceed-the-length-limit-here])
# surrounded by short ones
AT_KEYWORDS([s])
AT_KEYWORDS(
[another-very-long-keyword-that-hits-the-line-length-limit-bla-bla-bla-bla])
AT_KEYWORDS([t])
AT_CLEANUP
]])

AT_CHECK_KEYS([-l], [.{80}], [1], [.{87}], [0])

AT_CLEANUP


## ------------- ##
## AT_ARG_OPTION ##
## ------------- ##

AT_CHECK_AT([AT@&t@_ARG_OPTION],
[[
AT_INIT([artificial test suite])
AT_ARG_OPTION([frob fro fr f],
              [AS_HELP_STRING([-f, --frob], [frobnicate the test run])],
	      [frob=$at_optarg], [frob=default])
AT_ARG_OPTION([opt-with-hyphen],
              [AS_HELP_STRING([--opt-with-hyphen], [option name with hypen])])
AT_ARG_OPTION([ping],
	      [AS_HELP_STRING([--ping], [ping on every encounter])],
	      [echo ping])
AT_SETUP([test argument handling])
AT_CHECK([test "$frob" = "$FROB"])
AT_CHECK([test "$at_arg_frob" = "$FROB_ARG"])
AT_CLEANUP
AT_SETUP([test hyphen normalization])
AT_CHECK([test "$at_arg_opt_with_hyphen" = "$expected"])
AT_CLEANUP
]],
[], [], [stdout], [], [],
[# We already invoked --help.
AT_CHECK([grep '  -f, --frob.*frobnicate' stdout], [], [ignore])
for args in \
  '1 FROB=default FROB_ARG=false' \
  '1 -f FROB=: FROB_ARG=:' \
  '1 --fr FROB=: FROB_ARG=:' \
  '1 --fro FROB=: FROB_ARG=:' \
  '1 --frob FROB=: FROB_ARG=:' \
  '1 --no-f FROB=false FROB_ARG=false' \
  '1 --no-fr FROB=false FROB_ARG=false' \
  '1 --no-fro FROB=false FROB_ARG=false' \
  '1 --no-frob FROB=false FROB_ARG=false' \
  '2 expected=false' \
  '2 --opt-with-hyphen expected=:' \
  '2 --no-opt-with-hyphen expected=false'
do
  AT_CHECK([$CONFIG_SHELL ./micro-suite -x $args], [], [ignore])
done
AT_CHECK([$CONFIG_SHELL ./micro-suite 2 --ping --no-ping --ping expected=false],
	 [], [stdout])
AT_CHECK([grep -c ping stdout], [], [[3
]])
], [--help])


## ----------------- ##
## AT_ARG_OPTION_ARG ##
## ----------------- ##

AT_CHECK_AT([AT@&t@_ARG_OPTION_ARG],
[[
AT_INIT([artificial test suite])
AT_ARG_OPTION_ARG([frob fro fr f],
		  [AS_HELP_STRING([-f, --frob=FOO], [frobnicate FOO])],
		  [frob=$at_optarg], [frob=default])
AT_ARG_OPTION_ARG([opt-with-hyphen],
		  [AS_HELP_STRING([--opt-with-hyphen=ARG],
				  [option name with hypen])])
AT_ARG_OPTION_ARG([ping],
		  [AS_HELP_STRING([--ping], [ping on every encounter])],
		  [echo ping])
AT_SETUP([test argument handling])
AT_CHECK([test "$frob" = "$FROB"])
AT_CHECK([test "$at_arg_frob" = "$FROB_ARG"])
AT_CLEANUP
AT_SETUP([test hyphen normalization])
AT_CHECK([test "$at_arg_opt_with_hyphen" = "$expected"])
AT_CLEANUP
]],
[], [], [stdout], [], [],
[# We already invoked --help.
AT_CHECK([grep '  -f, --frob.*frobnicate' stdout], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -x --frob], [1], [ignore], [stderr])
AT_CHECK([grep 'requires an argument' stderr], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -x --no-frob], [1], [ignore], [stderr])
AT_CHECK([grep 'invalid option' stderr], [], [ignore])
for args in \
  '1 FROB=default FROB_ARG=' \
  '1 -f bar FROB=bar FROB_ARG=bar' \
  '1 --fr bar FROB=bar FROB_ARG=bar' \
  '1 --fro bar FROB=bar FROB_ARG=bar' \
  '1 --frob bar FROB=bar FROB_ARG=bar' \
  '1 -f=bar FROB=bar FROB_ARG=bar' \
  '1 --fr=bar FROB=bar FROB_ARG=bar' \
  '1 --fro=bar FROB=bar FROB_ARG=bar' \
  '1 --frob=bar FROB=bar FROB_ARG=bar' \
  '2 expected=' \
  '2 --opt-with-hyphen=baz expected=baz'
do
  AT_CHECK([$CONFIG_SHELL ./micro-suite -x $args], [], [ignore])
done
AT_CHECK([$CONFIG_SHELL ./micro-suite 2 --ping=1 --ping=2 expected=],
	 [], [stdout])
AT_CHECK([grep -c ping stdout], [], [[2
]])
], [--help])


m4_define([AT_SKIP_PARALLEL_TESTS],
[# Per BUGS, we have not yet figured out how to run parallel tests cleanly
# under dash and some ksh variants.  For now, only run this test under
# limited conditions; help is appreciated in widening this test base.
AT_SKIP_IF([${CONFIG_SHELL-$SHELL} -c 'test -z "${BASH_VERSION+set}]]dnl
[[${ZSH_VERSION+set}${TEST_PARALLEL_AUTOTEST+set}"'])
# The parallel scheduler requires mkfifo and job control to work.
AT_CHECK([mkfifo fifo || exit 77])
AT_CHECK([${CONFIG_SHELL-$SHELL} -c '(set -m && set +m) || exit 77'],
	 [], [], [ignore])
# Parallel tests malfunction with Guix's bash, as of this writing
# (bash 5.1.8(1)-release, guix 9584b1d 2023-03-12).  I haven't been
# able to figure out why.
# It is *probably* safe to assume that if the shell is Bash and /gnu/store
# exists, then we also have realpath and $(...).
AT_SKIP_IF(
  [${CONFIG_SHELL-$SHELL} -c 'test "${BASH_VERSION+set}" = set' &&
   test -d /gnu/store &&
   test "$(realpath "${CONFIG_SHELL-$SHELL}" | cut -c-10)" = /gnu/store])
])

## ----------------------- ##
## parallel test execution ##
## ----------------------- ##

AT_SETUP([parallel test execution])

# This test tries to ensure that -j runs tests in parallel.
# Such a test is inherently racy, because there are no real-time
# guarantees about scheduling delays.  So we try to minimize
# the chance to lose the race.

# The time needed for a micro-suite consisting of NTESTS tests each
# sleeping for a second is estimated by
#   startup + ntests * (serial_overhead + 1 / njobs)
#
# in absence of major scheduling delays.  This leads to side conditions:
# - NTESTS should be high, so the STARTUP time is small compared to the
#   test run time, and scheduling delays can even out; it should not be
#   too high, to not slow down the testsuite unnecessarily,
# - the number of concurrent jobs NJOBS should not be too low, so the
#   race is not lost so easily; it should not be too high, to avoid fork
#   failures on tightly limited systems.  4 seems a good compromise
#   here, considering that Autotest spawns several other processes.
# - STARTUP is assumed to be the same for parallel and serial runs, so
#   the latter can estimate the former.
# - To avoid unportable output from time measurement commands, spawn
#   both a parallel and a serial testsuite run; check that the former
#   completes before the latter has completed a fraction SERIAL_NTESTS
#   of the tests (the serial run is executed in a subdirectory), plus
#   some additional time to allow for compensation of SERIAL_OVERHEAD.
# - when adding this time to the serial test execution, an initial delay
#   SERIAL_DELAY of the serial test helps to avoid unreliable scheduling
#   due to the startup burst of the suites.

dnl total number of tests.
m4_define([AT_PARALLEL_NTESTS], [16])
dnl number of jobs to run in parallel.
m4_define([AT_PARALLEL_NJOBS], [4])
dnl number of tests to run serially, as comparison.
m4_define([AT_PARALLEL_SERIAL_NTESTS],
  m4_eval(AT_PARALLEL_NTESTS / AT_PARALLEL_NJOBS))
dnl initial delay of serial run, to compensate for SERIAL_OVERHEAD.
dnl This corresponds to 0.67 s of overhead per test.
m4_define([AT_PARALLEL_SERIAL_DELAY],
  m4_eval((AT_PARALLEL_NTESTS - AT_PARALLEL_SERIAL_NTESTS + 1) * 2 / 3))


AT_CHECK_AT_PREP([micro-suite],
[[AT_INIT([suite to test parallel execution])
m4_for([count], [1], ]]AT_PARALLEL_NTESTS[[, [],
   [AT_SETUP([test number count])
    AT_CHECK([sleep 1])
    AT_CLEANUP
])
]])

# Even if parallel jobs are not supported, the command line must work.
AT_CHECK([$CONFIG_SHELL ./micro-suite --help | grep " --jobs"], [0], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -j2foo], [1], [], [stderr])
AT_CHECK([grep 'non-numeric argument' stderr], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite --jobs=foo], [1], [], [stderr])
AT_CHECK([grep 'non-numeric argument' stderr], [], [ignore])

AT_SKIP_PARALLEL_TESTS

# The parallel test driver makes some shells generate internal
# debugging messages on stderr (notably bash 5.x in compile-time
# development mode, see
# https://lists.gnu.org/archive/html/bug-autoconf/2020-10/msg00047.html)
# so ignore stderr in all invocations below.

# Ensure that all tests run, and lines are not split.
AT_CHECK([$CONFIG_SHELL ./micro-suite -j[]AT_PARALLEL_NJOBS],
         [], [stdout], [ignore])
AT_CHECK([grep -c '^.\{53\}ok' stdout], [], [AT_PARALLEL_NTESTS
])
# Running one test with -j should produce correctly formatted output:
AT_CHECK([$CONFIG_SHELL ./micro-suite -j 3], [], [stdout], [ignore])
AT_CHECK([grep -c '^.\{53\}ok' stdout], [], [1
])
# Specifying more jobs than tests should not hang:
AT_CHECK([$CONFIG_SHELL ./micro-suite -j3 3], [], [stdout], [ignore])
AT_CHECK([grep -c '^.\{53\}ok' stdout], [], [1
])
# Not even with zero tests:
AT_CHECK([$CONFIG_SHELL ./micro-suite -j -k nomatch], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite -j3 -k nomatch], [], [ignore])

mkdir serial

# Unfortunately, the return value of wait is unreliable,
# so we check that kill fails.
AT_CHECK([$CONFIG_SHELL ./micro-suite --jobs=[]AT_PARALLEL_NJOBS & ]dnl
         [sleep AT_PARALLEL_SERIAL_DELAY && ]dnl
         [cd serial && $CONFIG_SHELL ../micro-suite -AT_PARALLEL_SERIAL_NTESTS >/dev/null && ]dnl
         [{ kill $! && exit 1; :; }], [], [stdout], [ignore])
AT_CHECK([grep -c '^.\{53\}ok' stdout], [], [AT_PARALLEL_NTESTS
])
AT_CHECK([grep 'AT_PARALLEL_NTESTS tests' stdout], [], [ignore])

AT_CLEANUP

# stderr is ignored in the next several tests because the parallel
# driver makes some shells emit internal debugging messages, see
# https://lists.gnu.org/archive/html/bug-autoconf/2020-10/msg00047.html

AT_CHECK_AT_TEST([parallel truth],
  [AT_CHECK([:], 0, [], [])],
  [], [], [], [ignore], [AT_SKIP_PARALLEL_TESTS],
  [], [-j])

AT_CHECK_AT_TEST([parallel fallacy],
  [AT_CHECK([false], [], [], [])],
  [], [1], [], [ignore], [AT_SKIP_PARALLEL_TESTS],
  [AT_CHECK([grep failed micro-suite.log], [], [ignore])], [-j])

AT_CHECK_AT_TEST([parallel skip],
  [AT_CHECK([echo output; echo irrelevant >&2; exit 77], 0, [mismatch], [])],
  [], [], [], [ignore], [AT_SKIP_PARALLEL_TESTS],
  [AT_CHECK([grep skipped micro-suite.log], [], [ignore])], [-j])

AT_CHECK_AT_TEST([parallel syntax error],
  [AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([syntax])
   AT_CHECK([if])
   AT_CLEANUP
   AT_SETUP([another test])
   AT_CHECK([:])],
  [], [0], [], [ignore], [AT_SKIP_PARALLEL_TESTS],
  [dnl Until we can find a way to avoid catastrophic failure (ash) or
   dnl lack of failure (zsh), skip the rest of this test on such shells.
   echo 'if' > syntax
   AT_CHECK([${CONFIG_SHELL-$SHELL} -c 'case `. ./syntax; echo $?` in
		  0|"") exit 77;;
		esac'], [0], [ignore], [ignore])
   AT_CHECK([${CONFIG_SHELL-$SHELL} ./micro-suite -j], [1], [ignore], [stderr])
   AT_CHECK([grep "unable to parse test group: 2" stderr], [0], [ignore])],
  [-j2 1 3])

AT_CHECK_AT_TEST([parallel errexit],
  [AT_CHECK([false])
   AT_CLEANUP
   AT_SETUP([barrier test])
   AT_CHECK([sleep 4])
   AT_CLEANUP
   AT_SETUP([test that should not be run])
   AT_CHECK([:])],
  [], [1], [stdout], [stderr], [AT_SKIP_PARALLEL_TESTS],
  [AT_CHECK([test -f micro-suite.log], [1])
   touch micro-suite.log # shut up AT_CAPTURE_FILE.
   AT_CHECK([grep "should not be run" stdout], [1])
   AT_CHECK([grep "[[12]] .* inhibited subsequent" stderr], [], [ignore])],
  [-j2 --errexit])


AT_SETUP([parallel autotest and signal handling])

AT_SKIP_PARALLEL_TESTS

# Goals:
# (1) interrupt './testsuite -jN'
# (2) interrupt 'make check TESTSUITEFLAGS=-jN'
# (3) no trailing verbose/trace output
# (4) exit status should be 128+signal

AT_DATA([atlocal],
[[suite_pid=$$
export suite_pid
]])

AT_CHECK_AT_PREP([micro-suite],
[[AT_INIT([suite to test parallel execution])
AT_SETUP([test number 1])
AT_CHECK([sleep 2])
AT_CLEANUP
AT_SETUP([test number 2])
AT_CHECK([sleep 1])
AT_CLEANUP
AT_SETUP([test number 3])
AT_CHECK([sleep 1])
AT_CLEANUP
AT_SETUP([killer test])
AT_CHECK([kill -$signal $suite_pid])
AT_CLEANUP
m4_for([count], [5], [7], [],
   [AT_SETUP([test number count])
    AT_CHECK([sleep 1])
    AT_CLEANUP
])
]])

AT_DATA([Makefile.in],
[[@SET_MAKE@
SHELL = @SHELL@
TESTSUITE = ./micro-suite
check:
	$(SHELL) '$(TESTSUITE)' $(TESTSUITEFLAGS)
.PHONY: check
]])

AT_CHECK([$CONFIG_SHELL $abs_top_builddir/config.status --file=Makefile:Makefile.in],
	 [], [ignore])

# Test INT and TERM.
for signal in 2 15; do
  export signal
  AS_VAR_ARITH([expected_status], [128 + $signal])

  # Sequential case.
  AT_CHECK([$CONFIG_SHELL ./micro-suite], [$expected_status],
	   [ignore], [stderr])
  # Both stderr and the log should contain the notification about the signal.
  AT_CHECK([grep 'bailing out' stderr], [], [ignore])
  AT_CHECK([grep 'bailing out' micro-suite.log], [], [ignore])
  # There should be no junk job status output.
  AT_CHECK([[grep '[iI]nterrupt[	 ]' stderr]], [1])

  # Parallel case.
  AT_CHECK([$CONFIG_SHELL ./micro-suite --jobs=3], [$expected_status],
	   [ignore], [stderr])
  AT_CHECK([grep 'bailing out' stderr], [], [ignore])
  AT_CHECK([grep 'bailing out' micro-suite.log], [], [ignore])
  # We'd like to check this here, too, but some shells do not allow to
  # turn off job control.
  # AT_CHECK([[grep '[iI]nterrupt[	 ]' stderr]], [1])

  # Ditto with 'make' in the loop.
  # Explicitly setting TESTSUITEFLAGS to empty...
  AT_CHECK_MAKE([TESTSUITEFLAGS=], [], [1], [ignore], [stderr])
  AT_CHECK([grep 'bailing out' stderr], [], [ignore])
  AT_CHECK([grep 'bailing out' micro-suite.log], [], [ignore])

  # ... and explicitly requesting 3-fold parallelism.
  AT_CHECK_MAKE([TESTSUITEFLAGS=--jobs=3], [], [1], [ignore], [stderr])
  AT_CHECK([grep 'bailing out' stderr], [], [ignore])
  AT_CHECK([grep 'bailing out' micro-suite.log], [], [ignore])
done


# Test PIPE.
# The most important part here is that things should not hang, nor
# get out of hand.  OTOH, if the shell sets the default handler to
# ignore PIPE (pdksh, dash), there is little we can do about having the
# test run; it's only the output that won't be there.  So all we check
# for is that, if test 7 didn't run serially, then it shouldn't be
# run in the parallel case either; the intermediate tests serve as
# parallel barrier.
# Note that stderr may contain "Broken pipe" errors.
AT_CHECK([($CONFIG_SHELL ./micro-suite -d -3 5-; echo $? >status) | sed 5q],
	 [], [stdout], [stderr])
AT_CHECK([grep '5.*ok' stdout], [1])
# Apparently some shells don't get around to creating 'status' any more.
# And ksh93 on FreeBSD uses 256 + 13 instead of 128 + 13
AT_CHECK([test ! -s status || grep 141 status || grep 269 status || grep ^0 status ],
	 [], [ignore])
AT_CHECK([if test -f micro-suite.dir/7/micro-suite.log; then ]dnl
	 [  echo "shell ignores SIGPIPE" > sigpipe-stamp ]dnl
	 [else :; fi])

AT_CHECK([$CONFIG_SHELL ./micro-suite -d -3 5- --jobs=2 | sed 5q], [], [stdout], [ignore])
AT_CHECK([grep '5.*ok' stdout], [1])
AT_CHECK([test -s sigpipe-stamp || test ! -f micro-suite.dir/7/micro-suite.log], [0])

AT_CLEANUP


# Avoid running into a regression when mkfifo does not work.
AT_CHECK_AT_TEST([parallel args but non-working mkfifo],
[AT_CHECK([:])
AT_CLEANUP
AT_SETUP([second test])
AT_CHECK([:])
],
[], [], [stdout], [stderr],
[AT_SKIP_PARALLEL_TESTS
mkdir bin
cat >bin/mkfifo <<\EOF
#! /bin/sh
exit 1
EOF
chmod +x bin/mkfifo
PATH=`pwd`/bin:$PATH
export PATH
],
[AT_CHECK([grep 'second test' stdout], [], [ignore])
], [--jobs])


# --color
AT_CHECK_AT_TEST([colored test results],
  [AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([fail])
   AT_CHECK([exit 1])
   AT_CLEANUP
   AT_SETUP([xpass])
   AT_XFAIL_IF([:])
   AT_CHECK([:])
   AT_CLEANUP
   AT_SETUP([xfail])
   AT_XFAIL_IF([:])
   AT_CHECK([exit 1])
   AT_CLEANUP
   AT_SETUP([skip])
   AT_CHECK([exit 77])
   AT_CLEANUP
   AT_SETUP([hardfail])
   AT_XFAIL_IF([:])
   AT_CHECK([exit 99])
], [], [], [], [], [], [

TERM=ansi
export TERM

red=`printf '\033@<:@0;31m'`
grn=`printf '\033@<:@0;32m'`
lgn=`printf '\033@<:@1;32m'`
blu=`printf '\033@<:@1;34m'`
std=`printf '\033@<:@m'`

# Check that grep can parse nonprinting characters.
# BSD 'grep' works from a pipe, but not a seekable file.
# GNU or BSD 'grep -a' works on files, but is not portable.
AT_CHECK([case `echo "$std" | grep .` in #'' restore font-lock
	    $std) :;;
	    *) exit 77;;
	  esac], [], [ignore], [],
	 [echo "grep can't parse nonprinting characters" >&2])

if echo 'ab*c' | grep -F 'ab*c' >/dev/null 2>&1; then
  FGREP="grep -F"
else
  FGREP=fgrep
fi

# No color.
AT_CHECK([$CONFIG_SHELL ./micro-suite], [1], [stdout], [stderr])
for color in "$red" "$grn" "$lgn" "$blu"; do
  AT_CHECK([cat stdout stderr | $FGREP "$color"], [1])
done

# Color of test group results.
AT_CHECK([$CONFIG_SHELL ./micro-suite --color=always], [1], [stdout], [stderr])
AT_CHECK([cat stdout | grep " only " | $FGREP "$grn"], [], [ignore])
AT_CHECK([cat stdout | grep " fail " | $FGREP "$red"], [], [ignore])
AT_CHECK([cat stdout | grep " xfail " | $FGREP "$lgn"], [], [ignore])
AT_CHECK([cat stdout | grep " xpass " | $FGREP "$red"], [], [ignore])
AT_CHECK([cat stdout | grep " skip " | $FGREP "$blu"], [], [ignore])
AT_CHECK([cat stdout | grep " hardfail " | $FGREP "$red"], [], [ignore])
AT_CHECK([cat stderr | grep ERROR | $FGREP "$red"], [], [ignore])

# The summary is green if all tests were successful, light green if all
# behaved as expected, and red otherwise.
AT_CHECK([$CONFIG_SHELL ./micro-suite --color=always 1 -k skip],
	 [0], [stdout])
AT_CHECK([cat stdout | grep 'test.*successful' | $FGREP "$grn"],
	 [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite --color=always 1 -k xfail -k skip],
	 [0], [stdout])
AT_CHECK([cat stdout | grep 'as expected' | $FGREP "$lgn"], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite --color=always -k fail],
	 [1], [ignore], [stderr])
AT_CHECK([cat stderr | grep ERROR | $FGREP "$red"], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite --color=always -k xpass],
	 [1], [ignore], [stderr])
AT_CHECK([cat stderr | grep ERROR | $FGREP "$red"], [], [ignore])
AT_CHECK([$CONFIG_SHELL ./micro-suite --color=always -k hardfail],
	 [1], [ignore], [stderr])
AT_CHECK([cat stderr | grep ERROR | $FGREP "$red"], [], [ignore])
# Reset color on verbose output.
printf %s\\n "$std"
], [1])


## ------------------- ##
## srcdir propagation. ##
## ------------------- ##

AT_SETUP([srcdir propagation])
AT_KEYWORDS([AC_@&t@CONFIG_TESTDIR])

mkdir pkg vpath-outside vpath-abs
mkdir pkg/t pkg/vpath-inside
AT_DATA([pkg/a])
AT_DATA([pkg/t/b])

AT_DATA([pkg/configure.ac], [[AC_INIT
AC_CONFIG_TESTDIR([t])
AC_OUTPUT
]])
cp "$abs_top_srcdir/build-aux/install-sh" pkg

cd pkg
AT_CHECK_AUTOCONF
cd ..

AT_CHECK_AT_PREP([suite],
[[AT_INIT([suite to check srcdir])
AT_SETUP([my only test])
AT_CHECK([test -f "$top_srcdir"/a && test -f "$srcdir"/b])
AT_CLEANUP
]], [], [], [], [pkg/t])

rm -f pkg/t/atconfig

# Build directory totally outside source directory.
cd vpath-outside
AT_CHECK([../pkg/configure $configure_options], [0], [ignore])
cd t
AT_CHECK([../../pkg/t/suite], [0], [ignore])
AT_CHECK([../../pkg/t/suite -v], [0], [stdout])
AT_CHECK([grep '^\.\./\.\./pkg/t/suite.at' stdout], [0], [ignore])
cd ../..

# Build directory totally outside source directory (absolute).
my_srcdir=`pwd`/pkg
cd vpath-abs
AT_CHECK(["$my_srcdir"/configure $configure_options], [0], [ignore])
cd t
AT_CHECK(["$my_srcdir"/t/suite], [0], [ignore])
AT_CHECK(["$my_srcdir"/t/suite -v], [0], [stdout])
AT_CHECK([grep '..*/t/suite.at' stdout], [0], [ignore])
cd ../..

# Build directory as subdirectory of source directory.
cd pkg/vpath-inside
AT_CHECK([../configure $configure_options], [0], [ignore])
cd t
AT_CHECK([../../t/suite], [0], [ignore])
AT_CHECK([../../t/suite -v], [0], [stdout])
AT_CHECK([grep '^\.\./\.\./t/suite.at' stdout], [0], [ignore])
cd ../../..

# Build directory as parent of source directory.
AT_CHECK([pkg/configure $configure_options], [0], [ignore])
cd t
AT_CHECK([../pkg/t/suite], [0], [ignore])
AT_CHECK([../pkg/t/suite -v], [0], [stdout])
AT_CHECK([grep '^\.\./pkg/t/suite.at' stdout], [0], [ignore])
cd ..

# Build directory as source directory.
cd pkg
AT_CHECK_CONFIGURE
cd t
AT_CHECK([./suite], [0], [ignore])
AT_CHECK([./suite -v], [0], [stdout])
AT_CHECK([grep '^\./suite.at' stdout], [0], [ignore])
cd ../..

AT_CLEANUP


## ------------------------------ ##
## whitespace in absolute testdir ##
## ------------------------------ ##

AT_SETUP([whitespace in absolute testdir])

dir='dir with  whitespace'
mkdir "$dir"
cd "$dir"
wd=`pwd`

AT_DATA([a])
AT_CHECK_AT_PREP([suite],
[[AT_INIT([suite to check srcdir])
AT_SETUP([my only test])
AT_CHECK([test -f "$top_srcdir"/a])
AT_CLEANUP
]])
AT_CHECK([top_srcdir=$wd ./suite], [0], [ignore])
AT_CHECK([top_srcdir=$wd ./suite -d], [0], [ignore])
AT_CHECK([cd suite.dir/1 && ./run top_srcdir="$wd"], [0], [ignore], [ignore])
AT_CLEANUP


## ------------------ ##
## unusual file names ##
## ------------------ ##

AT_SETUP([unusual file names])

AT_DATA_AUTOTEST([d@&t@nl.at],
[[AT_SETUP([test one])
m4_pattern_allow([^dnl$])
AT_CHECK([test "]m4_dquote(AT_LINE)[" = dn[]l.at:3])
AT_CLEANUP
]])

mkdir sub
AT_DATA_AUTOTEST([sub/"two  spaces".at],
[[AT_SETUP([test two])
AT_CHECK([test "]m4_dquote(AT_LINE)[" = "two  spaces.at:2"])
AT_CLEANUP
]])

AT_CHECK_AT_PREP([suite],
[[AT_INIT([suite to check included file names])
m4_include([d][nl.at])
m4_include([sub/two  spaces.at])
]])
AT_CHECK([$CONFIG_SHELL ./suite], [0], [stdout])
AT_CHECK([grep 'two spaces' suite.log], [1])
AT_CLEANUP


## --------------- ##
## C executables.  ##
## --------------- ##

AT_SETUP([C unit tests])
AT_KEYWORDS([AC_@&t@CONFIG_TESTDIR])
AT_KEYWORDS([AT_@&t@TESTED])

mkdir t
AT_DATA([configure.ac], [[AC_INIT
AC_PROG_CC
AC_CONFIG_TESTDIR([t], [.])
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
]])

# Test file
AT_DATA([testprog.c],
[[int main (int argc, char **argv) { return argc == 2 ? 0 : 1; }
]])

# Testsuite
AT_DATA([Makefile.in],
[[testprog@EXEEXT@: testprog.c
	@CC@ @CPPFLAGS@ @CFLAGS@ @LDFLAGS@ -o testprog@EXEEXT@ testprog.c
]])

AT_CHECK_AT_PREP([suite],
[[AT_INIT([suite to check C programs])
AT_TESTED([testprog$EXEEXT])
AT_SETUP([my only test])
AT_CHECK([testprog$EXEEXT foo], [0])
AT_CHECK([testprog$EXEEXT], [1])
AT_CLEANUP
]], [], [], [], [t])

rm t/atconfig
AT_CHECK_AUTOCONF
AT_CHECK_CONFIGURE
AT_CHECK([grep '^EXEEXT='\''.*'\' t/atconfig], [], [ignore])
AT_CHECK_MAKE
AT_CHECK([cd t && $CONFIG_SHELL ./suite], [], [ignore])
AT_CHECK([grep 1.*successful t/suite.log], [], [ignore])
AT_CLEANUP


## -------------------------------------- ##
## C executables (force .exe extension).  ##
## -------------------------------------- ##

AT_SETUP([C unit tests (EXEEXT)])
AT_KEYWORDS([AC_@&t@CONFIG_TESTDIR])
AT_KEYWORDS([AT_@&t@TESTED])

mkdir t
AT_DATA([configure.ac], [[AC_INIT
AC_PROG_CC
case $ac_cv_exeext in
  '' | .exe) ;;
  *) exit 77 ;;
esac
ac_cv_exeext=.exe
AC_SUBST([EXEEXT], [$ac_cv_exeext])
AC_CONFIG_TESTDIR([t], [.])
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
]])

# Test file
AT_DATA([testprog.c],
[[int main (int argc, char **argv) { return argc == 2 ? 0 : 1; }
]])

# Testsuite
AT_DATA([Makefile.in],
[[testprog@EXEEXT@: testprog.c
	@CC@ @CPPFLAGS@ @CFLAGS@ @LDFLAGS@ -o testprog@EXEEXT@ testprog.c
]])

AT_CHECK_AT_PREP([suite],
[[AT_INIT([suite to check C programs])
AT_TESTED([testprog$EXEEXT])
AT_SETUP([my only test])
AT_CHECK([testprog$EXEEXT foo], [0])
AT_CHECK([testprog$EXEEXT], [1])
AT_CLEANUP
]], [], [], [], [t])

rm t/atconfig
AT_CHECK_AUTOCONF
AT_CHECK_CONFIGURE
AT_CHECK([grep '^EXEEXT='\''.*'\' t/atconfig], [], [ignore])
AT_CHECK_MAKE
AT_CHECK([cd t && $CONFIG_SHELL ./suite], [], [ignore])
AT_CHECK([grep 1.*successful t/suite.log], [], [ignore])
AT_CLEANUP


## ------------------------- ##
## Erlang EUnit unit tests.  ##
## ------------------------- ##

AT_SETUP([Erlang Eunit unit tests])
AT_KEYWORDS([Erlang])
AT_KEYWORDS([AC_@&t@CONFIG_TESTDIR])

mkdir s t
AT_DATA([configure.ac], [[AC_INIT
AC_ERLANG_PATH_ERL([no])
AC_ERLANG_PATH_ERLC([no])
if test "$ERL" = "no" || test "$ERLC" = "no"; then
  HAVE_ERLANG=no
  HAVE_EUNIT=no
else
  HAVE_ERLANG=yes
  AC_ERLANG_CHECK_LIB([eunit], [HAVE_EUNIT=yes], [HAVE_EUNIT=no])
fi
AC_SUBST([HAVE_ERLANG])
AC_SUBST([HAVE_EUNIT])

AC_CONFIG_TESTDIR([t])
AC_CONFIG_FILES([s/compile], [chmod +x s/compile])
AC_CONFIG_FILES([erlang.conf])
AC_OUTPUT
]])

# File to pass info back to us
AT_DATA([erlang.conf.in],
[[HAVE_ERLANG=@HAVE_ERLANG@
HAVE_EUNIT=@HAVE_EUNIT@
]])

# Erlang module to test:
AT_DATA([s/testme.erl],
[[-module(testme).
-export([foo/1]).
foo(1) -> one;
foo(2) -> two;
foo(_) -> other.
]])

# Corresponding Eunit unit test module:
AT_DATA([s/testme_tests.erl],
[[-module(testme_tests).
-include_lib("eunit/include/eunit.hrl").
foo_one_test() -> ?assertEqual(one, testme:foo(1)).
foo_two_test() -> ?assertEqual(two, testme:foo(2)).
foo_other_test() -> ?assertEqual(other, testme:foo(42)).
]])

# Compilation script:
AT_DATA([s/compile.in],
[["@ERLC@" -b beam testme.erl testme_tests.erl
]])

AT_CHECK_AT_PREP([suite],
[[AT_INIT([suite to check EUnit integration])
AT_SETUP([my only test])
AT_CHECK_EUNIT([my_testsuite], [{module, testme}],
	       [-pa "${abs_top_builddir}/s"])
AT_CLEANUP
]], [], [], [], [t])

AT_CHECK_AUTOCONF
AT_CHECK_CONFIGURE
. ./erlang.conf

AT_CHECK([grep '^ERL='\''.*'\' t/atconfig], [], [ignore])
AT_CHECK([grep '^ERLC='\''.*'\' t/atconfig], [], [ignore])
AT_CHECK([grep '^ERLCFLAGS='\''.*'\' t/atconfig], [], [ignore])

if test "$HAVE_ERLANG" = yes && test "$HAVE_EUNIT" = yes; then
  AT_CHECK([cd s && $CONFIG_SHELL ./compile])
fi

AT_CHECK([cd t && $CONFIG_SHELL ./suite], [], [ignore])

if test "$HAVE_EUNIT" = yes; then
  AT_CHECK([grep 1.*successful t/suite.log], [], [ignore])
  AT_CHECK([grep skipped t/suite.log], [1], [ignore])
else
  AT_CHECK([grep 1.*skipped t/suite.log], [], [ignore])
  AT_CHECK([grep 0.*successful t/suite.log], [], [ignore])
fi

AT_CLEANUP