X-Git-Url: https://git.exim.org/users/heiko/exim.git/blobdiff_plain/adf703b6582dcb89a2592b3519fd2e5ed30682f3..97cfe3942f67200f77f6ae9b302409075e4e5792:/test/runtest diff --git a/test/runtest b/test/runtest index c6fd5ce54..c52afceaa 100755 --- a/test/runtest +++ b/test/runtest @@ -64,7 +64,7 @@ my $force_continue = 0; my $force_update = 0; my $log_failed_filename = 'failed-summary.log'; my $log_summary_filename = 'run-summary.log'; -my $more = 'less -XF'; +my @more = qw'less -XF'; my $optargs = ''; my $save_output = 0; my $server_opts = ''; @@ -404,7 +404,7 @@ RESET_AFTER_EXTRA_LINE_READ: # Replace the Exim version number (may appear in various places) # patchexim should have fixed this for us - #s/(Exim) \d+\.\d+[\w_-]*/$1 x.yz/i; + #s/Exim \K\d+[._]\d+[\w_-]*/x.yz/i; # Replace Exim message ids by a unique series s/((?:[^\W_]{6}-){2}[^\W_]{2}) @@ -780,7 +780,7 @@ RESET_AFTER_EXTRA_LINE_READ: # This handles "connection from" and the like, when the port is given if (!/listening for SMTP on/ && !/Connecting to/ && !/=>/ && !/->/ - && !/\*>/ && !/Connection refused/) + && !/\*>/&& !/==/ && !/\*\*/ && !/Connection refused/ && !/in response to/) { s/\[([a-z\d:]+|\d+(?:\.\d+){3})\]:(\d+)/"[".$1."]:".new_value($2,"%s",\$next_port)/ie; } @@ -800,6 +800,12 @@ RESET_AFTER_EXTRA_LINE_READ: # Also, the length of space at the end of the host line is dependent # on the length of the longest line, so strip it also on otherwise # un-rewritten lines like localhost + # + # host 127.0.0.1 [127.0.0.1] + # host 10.0.0.1 [10.0.0.1]- + # + # host 127.0.0.1 [127.0.0.1]-- + # host 169.16.16.16 [169.16.16.10] s/^\s+host\s(\S+)\s+(\S+)/ host $1 $2/; s/^\s+(host\s\S+\s\S+)\s+(port=.*)/ host $1 $2/; @@ -811,7 +817,7 @@ RESET_AFTER_EXTRA_LINE_READ: s/(^|\W)\K\Q$parm_ipv6_stripped\E/ip6:ip6:ip6:ip6:ip6:ip6:ip6:ip6/g; s/\b\Q$parm_ipv4r\E\b/ip4-reverse/g; s/(^|\W)\K\Q$parm_ipv6r\E/ip6-reverse/g; - s/^(\s+host\s\S+\s+\[\S+\]) +$/$1 /; + s/^\s+host\s\S+\s+\[\S+\]\K +$//; # strip, not collapse the trailing whitespace # ======== Test network IP addresses ======== @@ -821,11 +827,10 @@ RESET_AFTER_EXTRA_LINE_READ: # ======== IP error numbers and messages ======== # These vary between operating systems - s/Can't assign requested address/Network Error/; - s/Cannot assign requested address/Network Error/; + s/Can(no|')t assign requested address/Network Error/; s/Operation timed out/Connection timed out/; s/Address family not supported by protocol family/Network Error/; - s/Network is unreachable/Network Error/; + s/Network( is)? unreachable/Network Error/; s/Invalid argument/Network Error/; s/\(\d+\): Network/(dd): Network/; @@ -887,7 +892,7 @@ RESET_AFTER_EXTRA_LINE_READ: # The sizes of filter files may vary because of the substitution of local # filenames, logins, etc. - s/^\d+(?= bytes read from )/ssss/; + s/^\d+(?= (\(tainted\) )?bytes read from )/ssss/; # ======== OpenSSL error messages ======== @@ -911,7 +916,7 @@ RESET_AFTER_EXTRA_LINE_READ: s/renamed tmp\/\d+\.[^.]+\.(\S+) as new\/\d+\.[^.]+\.(\S+)/renamed tmp\/MAILDIR.$1 as new\/MAILDIR.$1/; # Maildir file names in general - s/\b\d+\.H\d+P\d+\b/dddddddddd.HddddddPddddd/; + s/\b\d+\.M\d+P\d+\b/dddddddddd.HddddddPddddd/; # Maildirsize data while (/^\d+S,\d+C\s*$/) @@ -929,7 +934,7 @@ RESET_AFTER_EXTRA_LINE_READ: # SRS timestamps and signatures vary by hostname and from run to run - s/SRS0=....=..=[^=]+=[^@]+\@test.ex/SRS0=ZZZZ=YY=the.local.host.name=CALLER\@test.ex/; + s/(?i)SRS0=....=.[^=]?=([^=]+)=([^@]+)\@([^ ]+)/SRS0=ZZZZ=YY=$1=$2\@$3/g; # ======== Output from the "fd" program about open descriptors ======== @@ -937,9 +942,7 @@ RESET_AFTER_EXTRA_LINE_READ: # at least we'll still be checking the number of open fd's. s/max fd = \d+/max fd = dddd/; - s/status=0 RDONLY/STATUS/g; - s/status=1 WRONLY/STATUS/g; - s/status=2 RDWR/STATUS/g; + s/status=[0-9a-f]+ (?:RDONLY|WRONLY|RDWR)/STATUS/g; # ======== Contents of spool files ======== @@ -948,12 +951,6 @@ RESET_AFTER_EXTRA_LINE_READ: s/^\d\d\d(?=[PFS*])/ddd/; - # ========= Exim lookups ================== - # Lookups have a char which depends on the number of lookup types compiled in, - # in stderr output. Replace with a "0". Recognising this while avoiding - # other output is fragile; perhaps the debug output should be revised instead. - s%(?>>>>>>>>>>>>>>> Exim pid=)\d+(?= terminating)/pppp/; s/^(proxy-proc \w{5}-pid) \d+$/$1 pppp/; s/^(?:\s*\d+ )(exec .* -oPX)$/pppp $1/; + next if /(?:postfork: | fork(?:ing|ed) for )/; # IP address lookups use gethostbyname() when IPv6 is not supported, # and gethostbyname2() or getipnodebyname() when it is. s/\b(gethostbyname2?|\bgetipnodebyname)(\(af=inet\))?/get[host|ipnode]byname[2]/; + # Extra lookups done when ipv6 is supported + next if /^host_fake_gethostbyname\(af=inet6\) returned 1 \(HOST_NOT_FOUND\)$/; + # we don't care what TZ enviroment the testhost was running next if /^Reset TZ to/; + # ========= Exim lookups ================== + # Lookups have a char which depends on the number of lookup types compiled in, + # in stderr output. Replace with a "0". Recognising this while avoiding + # other output is fragile; perhaps the debug output should be revised instead. + s%^\s+(:?closing )?\K[0-?]TESTSUITE/aux-fixed/%0TESTSUITE/aux-fixed/%g; + # drop gnutls version strings next if /GnuTLS compile-time version: \d+[\.\d]+$/; next if /GnuTLS runtime version: \d+[\.\d]+$/; @@ -1059,6 +1069,38 @@ RESET_AFTER_EXTRA_LINE_READ: # this is timing-dependent next if /^OpenSSL: creating STEK$/; + next if /^selfsign cert rotate$/; + + # TLS preload + # only OpenSSL speaks of these + next if /^TLS: (preloading (DH params|ECDH curve|CA bundle) for server|generating selfsigned server cert)/; + next if /^Diffie-Hellman initialized from default/; + next if /^ECDH OpenSSL (< )?[\d.+]+: temp key parameter settings:/; + next if /^ECDH: .*'prime256v1'/; + next if /^tls_verify_certificates: system$/; + next if /^tls_set_watch: .*\/cert.pem/; + next if /^Generating 2048 bit RSA key/; + + # TLS preload + # only GnuTLS speaks of these + next if /^GnuTLS global init required$/; + next if /^TLS: basic cred init, server/; + next if /^TLS: preloading cipher list for server: NULL$/; + s/^GnuTLS using default session cipher\/priority "NORMAL"$/TLS: not preloading cipher list for server/; + next if /^GnuTLS<2>: added \d+ protocols, \d+ ciphersuites, \d+ sig algos and \d+ groups into priority list$/; + next if /^GnuTLS<2>: (Disabling X.509 extensions|signing structure using RSA-SHA256)/; + next if /^GnuTLS.*(wrap_nettle_mpi_print|gnutls_subject_alt_names_get|get_alt_name)/; + + # only kevent platforms (FreeBSD, OpenBSD) say this + next if /^watch dir/; + next if /^watch file .*\/usr\/local/; + next if /^watch file .*\/etc\/ssl/; + + # TLS preload + # there happen in different orders for OpenSSL/GnuTLS/noTLS + next if /^TLS: generating selfsigned server cert/; + next if /^TLS: not preloading (CA bundle|cipher list) for server$/; + next if /^TLS: not preloading server certs$/; # drop lookups next if /^Lookups \(built-in\):/; @@ -1118,6 +1160,7 @@ RESET_AFTER_EXTRA_LINE_READ: next if /DNS lookup of \S+ \(AAAA\) using fakens/; next if / in dns_ipv4_lookup?/; next if / writing neg-cache entry for .*AAAA/; + next if /^faking res_search\(AAAA\) response length as 65535/; if (/DNS lookup of \S+ \(AAAA\) gave NO_DATA/) { @@ -1125,6 +1168,17 @@ RESET_AFTER_EXTRA_LINE_READ: next; } + # Non-TLS bulds have a different Recieved: header expansion + s/^((.*)\t}}}}by \$primary_hostname \$\{if def:received_protocol \{with \$received_protocol }})\(Exim \$version_number\)$/$1\${if def:tls_in_cipher_std { tls \$tls_in_cipher_std\n$2\t}}(Exim \$version_number)/; + s/^((\s*).*considering: with \$received_protocol }})\(Exim \$version_number\)$/$1\${if def:tls_in_cipher_std { tls \$tls_in_cipher_std\n$2\t}}(Exim \$version_number)/; + if (/condition: def:tls_in_cipher_std$/) + { + $_= ; $_= ; $_= ; $_= ; + $_= ; $_= ; $_= ; $_= ; + $_= ; $_= ; $_= ; next; + } + + # Skip tls_advertise_hosts and hosts_require_tls checks when the options # are unset, because tls ain't always there. @@ -1182,16 +1236,37 @@ RESET_AFTER_EXTRA_LINE_READ: # Platform-dependent error strings s/Operation timed out/Connection timed out/; + # Platform differences on disconnect + s/unexpected disconnection while reading SMTP command from \[127.0.0.1\] \K\(error: Connection reset by peer\) //; + # Platform-dependent resolver option bits s/^ (?:writing|update) neg-cache entry for [^,]+-\K[0-9a-f]+, ttl/xxxx, ttl/; # timing variance, run-to-run s/^time on queue = \K1s/0s/; + # content-scan: file order can vary in directory + s%unspool_mbox\(\): unlinking 'TESTSUITE/spool/scan/[^/]*/\K[^\']*%FFFFFFFFF%; + # Skip hosts_require_dane checks when the options # are unset, because dane ain't always there. next if /in\shosts_require_dane\?\sno\s\(option\sunset\)/x; + # daemon notifier socket + s/^(\s*\d+|ppppp) (creating notifier socket)$/ppppp $2/; + s/^ \@(.*exim_daemon_notify)$/ $1/; + s/^(\s*\d+|ppppp) \@?(.*exim_daemon_notify)$/ppppp $2/; + next if /unlinking notifier socket/; + + # daemon notifier socket + # Timing variance over runs. Collapse repeated memssages. + if (/notify triggered queue run/) + { + my $line = $_; + while (/notify triggered queue run/) { $_ = ; } + $_ = $line . $_; + } + # DISABLE_OCSP next if /in hosts_requ(est|ire)_ocsp\? (no|yes)/; @@ -1214,7 +1289,7 @@ RESET_AFTER_EXTRA_LINE_READ: next if /\w+ in keep_environment\? (yes|no)/; # Sizes vary with test hostname - s/^cmd buf flush \d+ bytes$/cmd buf flush ddd bytes/; + s/^cmd buf flush \d+ bytes/cmd buf flush ddd bytes/; # Spool filesystem free space changes on different systems. s/^((?:spool|log) directory space =) -?\d+K (inodes =)\s*-?\d+/$1 nnnnnK $2 nnnnn/; @@ -1245,7 +1320,7 @@ RESET_AFTER_EXTRA_LINE_READ: next if /^DKIM \[[^[]+\] (Header hash|b) computed:/; # Not all platforms support TCP Fast Open, and the compile omits the check - if (s/\S+ in hosts_try_fastopen\? (no \(option unset\)|yes \(matched "\*"\))\n$//) + if (s/\S+ in hosts_try_fastopen\? (no \(option unset\)|no \(end of list\)|yes \(matched "\*"\))\n$//) { chomp; $_ .= ; @@ -1293,6 +1368,9 @@ RESET_AFTER_EXTRA_LINE_READ: next if /^Waiting for MySQL server to answer/; next if /mysqladmin: CREATE DATABASE failed; .* database exists/; + # Postgres version-dependent differences + s/^initdb: warning: (enabling "trust" authentication for local connections)$/\nWARNING: $1/; + # Not all builds include DMARC next if /^DMARC: no (dmarc_tld_file|sender_host_address)$/ ; @@ -1306,6 +1384,9 @@ RESET_AFTER_EXTRA_LINE_READ: s/^errno = \d+$/errno = EEE/; s/^writing error \d+: /writing error EEE: /; + # Some platforms have to flip to slow-mode taint-checking + next if /switching to slow-mode taint checking/; + # When Exim is checking the size of directories for maildir, it uses # the check_dir_size() function to scan directories. Of course, the order # of the files that are obtained using readdir() varies from system to @@ -1364,7 +1445,7 @@ RESET_AFTER_EXTRA_LINE_READ: # openssl version variances s/(TLS error on connection [^:]*: error:)[0-9A-F]{8}(:system library):(?:fopen|func\(4095\)):(No such file or directory)$/$1xxxxxxxx$2:fopen:$3/; - s/(DANE attempt failed.*error:)[0-9A-F]{8}(:SSL routines:)(ssl3_get_server_certificate|tls_process_server_certificate|CONNECT_CR_CERT)(?=:certificate verify failed$)/$1xxxxxxxx$2ssl3_get_server_certificate/; + s/(DANE attempt failed.*error:)[0-9A-F]{8}(:SSL routines:)(?:(?i)ssl3_get_server_certificate|tls_process_server_certificate|CONNECT_CR_CERT)(?=:certificate verify failed$)/$1xxxxxxxx$2ssl3_get_server_certificate/; s/(DKIM: validation error: )error:[0-9A-F]{8}:rsa routines:(?:(?i)int_rsa_verify|CRYPTO_internal):(?:bad signature|algorithm mismatch)$/$1Public key signature verification has failed./; s/ARC: AMS signing: privkey PEM-block import: error:\K[0-9A-F]{8}:(PEM routines):get_name:(no start line)/0906D06C:$1:PEM_read_bio:$2/; @@ -1390,6 +1471,9 @@ RESET_AFTER_EXTRA_LINE_READ: my ($prefix, $t_diff) = ($1, $3 - $2); s/DKIM: d=.* t=[0-9]* x=[0-9]* /${prefix} t=T x=T+${t_diff} /; } + # GnuTLS reports a different keysize vs. OpenSSL, for ed25519 keys + s/signer: [^ ]* bits:\K 256/ 253/; + s/public key too short:\K 256 bits/ 253 bits/; # port numbers s/(?:\[[^\]]*\]:|port )\K$parm_port_d/PORT_D/; @@ -1402,6 +1486,14 @@ RESET_AFTER_EXTRA_LINE_READ: # Platform differences for errno values (eg. Hurd). Leave 0 and negative numbers alone. s/R=\w+ T=\w+ defer\K \([1-9]\d*\): / (EEE): /; + + # Platform differences in errno strings + s/Arg list too long/Argument list too long/; + + # OpenSSL vs. GnuTLS + s/session: \K\((SSL_connect|gnutls_handshake)\): timed out/(tls lib connect fn): timed out/; + s/TLS error on connection from .*\K\((SSL_accept|gnutls_handshake)\): timed out/(tls lib accept fn): timed out/; + s/TLS error on connection from .*\K(SSL_accept: TCP connection closed by peer|\(gnutls_handshake\): The TLS connection was non-properly terminated.)/(tls lib accept fn): TCP connection closed by peer/; } # ======== mail ======== @@ -1554,7 +1646,7 @@ if (! -e $sf_current) print "\n"; print "------------ $f -----------\n" if (defined $rf && -s $rf && defined $rsf && -s $rsf); - system("$more '$f'"); + system @more => $f; } } @@ -1636,26 +1728,25 @@ if (-e $sf_current) } } - open(MUNGED, '>', $mf) || tests_exit(-1, "Failed to open $mf: $!"); - for ($i = 0; $i < @munged; $i++) - { print MUNGED $munged[$i]; } - close(MUNGED); + open(my $fh, '>', $mf) or tests_exit(-1, "Failed to open $mf: $!"); + print $fh @munged; } # Deal with log sorting if ($sortfile) { - my(@munged, $i, $j); - open(MUNGED, $mf) || tests_exit(-1, "Failed to open $mf: $!"); - @munged = ; - close(MUNGED); + my @munged = do { + open(my $fh, '<', $mf) or tests_exit(-1, "Failed to open $mf: $!"); + <$fh>; + }; - for ($i = 0; $i < @munged; $i++) + for (my $i = 0; $i < @munged; $i++) { if ($munged[$i] =~ /^[-\d]{10}\s[:\d]{8}\s[-A-Za-z\d]{16}\s[-=*]>/) { + my $j; for ($j = $i + 1; $j < @munged; $j++) { last if $munged[$j] !~ @@ -1667,11 +1758,9 @@ if (-e $sf_current) } } - open(MUNGED, ">$mf") || tests_exit(-1, "Failed to open $mf: $!"); - print MUNGED "**NOTE: The delivery lines in this file have been sorted.\n"; - for ($i = 0; $i < @munged; $i++) - { print MUNGED $munged[$i]; } - close(MUNGED); + open(my $fh, '>', $mf) or tests_exit(-1, "Failed to open $mf: $!"); + print $fh "**NOTE: The delivery lines in this file have been sorted.\n"; + print $fh @munged; } # Do the comparison @@ -1681,7 +1770,7 @@ if (-e $sf_current) # Handle comparison failure print "** Comparison of $mf with $sf_current failed"; - system("$more test-cf"); + system @more => 'test-cf'; print "\n"; for (;;) @@ -1712,8 +1801,7 @@ else # if we deal with a flavour file, we can't delete it, because next time the generic # file would be used again if ($sf_current eq $sf_flavour) { - open(FOO, ">$sf_current"); - close(FOO); + open(my $fh, '>', $sf_current); } else { tests_exit(-1, "Failed to unlink $sf_current") if !unlink($sf_current); @@ -1779,7 +1867,7 @@ $munges = }, 'debug_pid' => - { 'stderr' => 's/(^\s{0,4}|(?<=Process )|(?<=child ))\d{1,5}/ppppp/g' }, + { 'stderr' => 's/(^\s{0,4}|(?<=Process )|(?<=child ))\d+/ppppp/g' }, 'optional_dsn_info' => { 'mail' => '/^(X-(Remote-MTA-(smtp-greeting|helo-response)|Exim-Diagnostic|(body|message)-linecount):|Remote-MTA: X-ip;)/' @@ -1813,7 +1901,7 @@ $munges = }, 'timeout_errno' => # actual errno differs Solaris vs. Linux - { 'mainlog' => 's/(host deferral .* errno) <\d+> /$1 /' }, + { 'mainlog' => 's/((?:host|message) deferral .* errno) <\d+> /$1 /' }, 'peer_terminated_conn' => # actual error differs FreedBSD vs. Linux { 'stderr' => 's/^( SMTP\()Connection reset by peer(\)<<)$/$1closed$2/' }, @@ -2175,34 +2263,37 @@ if (/^dbmbuild\s+(\S+)\s+(\S+)/) if (/^dump\s+(\S+)/) { - my($which) = $1; - my(@temp); + my $which = $1; print ">> ./eximdir/exim_dumpdb $parm_cwd/spool $which\n" if $debug; - open(IN, "./eximdir/exim_dumpdb $parm_cwd/spool $which |"); - open(OUT, ">>test-stdout"); - print OUT "+++++++++++++++++++++++++++\n"; + open(my $in, "-|", './eximdir/exim_dumpdb', "$parm_cwd/spool", $which) or die "Can't run exim_dumpdb: $!"; + open(my $out, ">>test-stdout"); + print $out "+++++++++++++++++++++++++++\n"; if ($which eq "retry") { - $/ = "\n "; - @temp = ; - $/ = "\n"; - - @temp = sort { - my($aa) = split(' ', $a); - my($bb) = split(' ', $b); - return $aa cmp $bb; - } @temp; - + # the sort key is the first part of the retry db dump line, but for + # sorting we (temporarly) replace the own hosts ipv4 with a munged + # version, which matches the munging that is done later + # Why? We must ensure sure, that 127.0.0.1 always sorts first + # map-sort-map: Schwartz's transformation + # test 0099 + my @temp = map { $_->[1] } + sort { $a->[0] cmp $b->[0] } + #map { [ (split)[0] =~ s/\Q$parm_ipv4/ip4.ip4.ip4.ip4/gr, $_ ] } # this is too modern for 5.10.1 + map { + (my $k = (split)[0]) =~ s/\Q$parm_ipv4/ip4.ip4.ip4.ip4/g; + [ $k, $_ ] + } + do { local $/ = "\n "; <$in> }; foreach $item (@temp) { $item =~ s/^\s*(.*)\n(.*)\n?\s*$/$1\n$2/m; - print OUT " $item\n"; + print $out " $item\n"; } } else { - @temp = ; + my @temp = <$in>; if ($which eq "callout") { @temp = sort { @@ -2211,11 +2302,9 @@ if (/^dump\s+(\S+)/) return $aa cmp $bb; } @temp; } - print OUT @temp; + print $out @temp; } - - close(IN); - close(OUT); + close($in); # close it explicitly, otherwise $? does not get set return 1; } @@ -2305,8 +2394,7 @@ if (/^gnutls/) # The "killdaemon" command should ultimately follow the starting of any Exim -# daemon with the -bd option. We kill with SIGINT rather than SIGTERM to stop -# it outputting "Terminated" to the terminal when not in the background. +# daemon with the -bd option. if (/^killdaemon/) { @@ -2318,14 +2406,14 @@ if (/^killdaemon/) print ">> killdaemon: recovered pid $pid\n" if $debug; if ($pid) { - run_system("sudo /bin/kill -INT $pid"); + run_system("sudo /bin/kill -TERM $pid"); wait; } } else { $pid = `cat $parm_cwd/spool/exim-daemon.*`; if ($pid) { - run_system("sudo /bin/kill -INT $pid"); + run_system("sudo /bin/kill -TERM $pid"); close DAEMONCMD; # Waits for process } } @@ -2558,9 +2646,24 @@ elsif (/^((?i:[A-Z\d_]+=\S+\s+)+)?(\d+)?\s*(sudo(?:\s+-u\s+(\w+))?\s+)?exim(_\S+ if ($args =~ /\$msg/) { - my @listcmd = ("$parm_cwd/eximdir/exim", '-bp', + my($queuespec); + if ($args =~ /-qG\w+/) { $queuespec = $&; } + + my @listcmd; + + if (defined $queuespec) + { + @listcmd = ("$parm_cwd/eximdir/exim", '-bp', + $queuespec, + "-DEXIM_PATH=$parm_cwd/eximdir/exim", + -C => "$parm_cwd/test-config"); + } + else + { + @listcmd = ("$parm_cwd/eximdir/exim", '-bp', "-DEXIM_PATH=$parm_cwd/eximdir/exim", -C => "$parm_cwd/test-config"); + } print ">> Getting queue list from:\n>> @listcmd\n" if $debug; # We need the message ids sorted in ascending order. # Message id is: --. On some systems (*BSD) the @@ -2712,8 +2815,9 @@ else { tests_exit(-1, "Command unrecognized in line $lineno: $_"); } # Run the command, with stdin connected to a pipe, and write the stdin data -# to it, with appropriate substitutions. If a line ends with \NONL\, chop off -# the terminating newline (and the \NONL\). If the command contains +# to it, with appropriate substitutions. If a starts with '>>> ', process it +# via Perl's string eval(). +# If the command contains # -DSERVER=server add "-server" to the command, where it will adjoin the name # for the stderr file. See comment above about the use of -DSERVER. @@ -2722,12 +2826,29 @@ print ">> |${cmd}${stderrsuffix}\n" if ($debug); open CMD, "|${cmd}${stderrsuffix}" || tests_exit(1, "Failed to run $cmd"); CMD->autoflush(1); -while (