3 # Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
4 # Licensed under the terms of the GNU GPL License version 2
9 use Fcntl
qw(F_GETFL F_SETFL O_NONBLOCK);
10 use File
::Path
qw(mkpath);
11 use File
::Copy
qw(cp);
24 $default{"NUM_TESTS"} = 1;
25 $default{"REBOOT_TYPE"} = "grub";
26 $default{"TEST_TYPE"} = "test";
27 $default{"BUILD_TYPE"} = "randconfig";
28 $default{"MAKE_CMD"} = "make";
29 $default{"TIMEOUT"} = 120;
30 $default{"TMP_DIR"} = "/tmp/ktest";
31 $default{"SLEEP_TIME"} = 60; # sleep time between tests
32 $default{"BUILD_NOCLEAN"} = 0;
33 $default{"REBOOT_ON_ERROR"} = 0;
34 $default{"POWEROFF_ON_ERROR"} = 0;
35 $default{"REBOOT_ON_SUCCESS"} = 1;
36 $default{"POWEROFF_ON_SUCCESS"} = 0;
37 $default{"BUILD_OPTIONS"} = "";
38 $default{"BISECT_SLEEP_TIME"} = 60; # sleep time between bisects
39 $default{"PATCHCHECK_SLEEP_TIME"} = 60; # sleep time between patch checks
40 $default{"CLEAR_LOG"} = 0;
41 $default{"BISECT_MANUAL"} = 0;
42 $default{"BISECT_SKIP"} = 1;
43 $default{"SUCCESS_LINE"} = "login:";
44 $default{"BOOTED_TIMEOUT"} = 1;
45 $default{"DIE_ON_FAILURE"} = 1;
46 $default{"SSH_EXEC"} = "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND";
47 $default{"SCP_TO_TARGET"} = "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE";
48 $default{"REBOOT"} = "ssh \$SSH_USER\@\$MACHINE reboot";
49 $default{"STOP_AFTER_SUCCESS"} = 10;
50 $default{"STOP_AFTER_FAILURE"} = 60;
51 $default{"STOP_TEST_AFTER"} = 600;
52 $default{"LOCALVERSION"} = "-test";
70 my $poweroff_on_error;
72 my $powercycle_after_reboot;
73 my $poweroff_after_halt;
90 my $in_patchcheck = 0;
99 my $bisect_sleep_time;
100 my $patchcheck_sleep_time;
106 my $stop_after_success;
107 my $stop_after_failure;
119 $config_help{"MACHINE"} = << "EOF"
120 The machine hostname that you will test
.
123 $config_help{"SSH_USER"} = << "EOF"
124 The box is expected to have ssh on normal bootup
, provide the user
125 (most likely root
, since you need privileged operations
)
128 $config_help{"BUILD_DIR"} = << "EOF"
129 The directory that contains the Linux source code
(full path
).
132 $config_help{"OUTPUT_DIR"} = << "EOF"
133 The directory that the objects will be built
(full path
).
134 (can
not be same as BUILD_DIR
)
137 $config_help{"BUILD_TARGET"} = << "EOF"
138 The location of the compiled file to copy to the target
.
139 (relative to OUTPUT_DIR
)
142 $config_help{"TARGET_IMAGE"} = << "EOF"
143 The place to put your image on the test machine
.
146 $config_help{"POWER_CYCLE"} = << "EOF"
147 A script
or command to reboot the box
.
149 Here is a digital loggers power switch example
150 POWER_CYCLE
= wget
--no-proxy
-O
/dev/null
-q
--auth
-no-challenge
'http://admin:admin\@power/outlet?5=CCL'
152 Here is an example to reboot a virtual box on the current host
153 with the name
"Guest".
154 POWER_CYCLE
= virsh destroy Guest
; sleep 5; virsh start Guest
157 $config_help{"CONSOLE"} = << "EOF"
158 The script
or command that reads the console
160 If you
use ttywatch server
, something like the following would work
.
161 CONSOLE
= nc
-d localhost
3001
163 For a virtual machine with guest name
"Guest".
164 CONSOLE
= virsh console Guest
167 $config_help{"LOCALVERSION"} = << "EOF"
168 Required version ending to differentiate the test
169 from other linux builds on the
system.
172 $config_help{"REBOOT_TYPE"} = << "EOF"
173 Way to reboot the box to the test kernel
.
174 Only valid options so far are
"grub" and "script".
176 If you specify grub
, it will assume grub version
1
177 and will search
in /boot/grub
/menu
.lst
for the title \
$GRUB_MENU
178 and select that target to reboot to the kernel
. If this is
not
179 your setup
, then specify
"script" and have a command
or script
180 specified
in REBOOT_SCRIPT to boot to the target
.
182 The entry
in /boot/grub
/menu
.lst must be entered
in manually
.
183 The test will
not modify that file
.
186 $config_help{"GRUB_MENU"} = << "EOF"
187 The grub title name
for the test kernel to boot
188 (Only mandatory
if REBOOT_TYPE
= grub
)
190 Note
, ktest
.pl will
not update the grub menu
.lst
, you need to
191 manually add an option
for the test
. ktest
.pl will search
192 the grub menu
.lst
for this option to find what kernel to
195 For example
, if in the
/boot/grub
/menu
.lst the test kernel title has
:
198 GRUB_MENU
= Test Kernel
201 $config_help{"REBOOT_SCRIPT"} = << "EOF"
202 A script to reboot the target into the test kernel
203 (Only mandatory
if REBOOT_TYPE
= script
)
208 sub get_ktest_config
{
211 return if (defined($opt{$config}));
213 if (defined($config_help{$config})) {
215 print $config_help{$config};
220 if (defined($default{$config})) {
221 print "\[$default{$config}\] ";
223 $entered_configs{$config} = <STDIN
>;
224 $entered_configs{$config} =~ s/^\s*(.*\S)\s*$/$1/;
225 if ($entered_configs{$config} =~ /^\s*$/) {
226 if ($default{$config}) {
227 $entered_configs{$config} = $default{$config};
229 print "Your answer can not be blank\n";
237 sub get_ktest_configs
{
238 get_ktest_config
("MACHINE");
239 get_ktest_config
("SSH_USER");
240 get_ktest_config
("BUILD_DIR");
241 get_ktest_config
("OUTPUT_DIR");
242 get_ktest_config
("BUILD_TARGET");
243 get_ktest_config
("TARGET_IMAGE");
244 get_ktest_config
("POWER_CYCLE");
245 get_ktest_config
("CONSOLE");
246 get_ktest_config
("LOCALVERSION");
248 my $rtype = $opt{"REBOOT_TYPE"};
250 if (!defined($rtype)) {
251 if (!defined($opt{"GRUB_MENU"})) {
252 get_ktest_config
("REBOOT_TYPE");
253 $rtype = $entered_configs{"REBOOT_TYPE"};
259 if ($rtype eq "grub") {
260 get_ktest_config
("GRUB_MENU");
262 get_ktest_config
("REBOOT_SCRIPT");
266 sub process_variables
{
270 # We want to check for '\', and it is just easier
271 # to check the previous characet of '$' and not need
272 # to worry if '$' is the first character. By adding
273 # a space to $value, we can just check [^\\]\$ and
274 # it will still work.
277 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
281 # append beginning of value to retval
282 $retval = "$retval$begin";
283 if (defined($variable{$var})) {
284 $retval = "$retval$variable{$var}";
286 # put back the origin piece.
287 $retval = "$retval\$\{$var\}";
291 $retval = "$retval$value";
293 # remove the space added in the beginning
300 my ($lvalue, $rvalue) = @_;
302 if (defined($opt{$lvalue})) {
303 die "Error: Option $lvalue defined more than once!\n";
305 if ($rvalue =~ /^\s*$/) {
306 delete $opt{$lvalue};
308 $rvalue = process_variables
($rvalue);
309 $opt{$lvalue} = $rvalue;
314 my ($lvalue, $rvalue) = @_;
316 if ($rvalue =~ /^\s*$/) {
317 delete $variable{$lvalue};
319 $rvalue = process_variables
($rvalue);
320 $variable{$lvalue} = $rvalue;
327 open(IN
, $config) || die "can't read file $config";
330 $name =~ s
,.*/(.*),$1,;
335 my $num_tests_set = 0;
341 # ignore blank lines and comments
342 next if (/^\s*$/ || /\s*\#/);
344 if (/^\s*TEST_START(.*)/) {
348 if ($num_tests_set) {
349 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
352 my $old_test_num = $test_num;
353 my $old_repeat = $repeat;
355 $test_num += $repeat;
359 if ($rest =~ /\s+SKIP(.*)/) {
366 if ($rest =~ /\s+ITERATE\s+(\d+)(.*)$/) {
369 $repeat_tests{"$test_num"} = $repeat;
372 if ($rest =~ /\s+SKIP(.*)/) {
377 if ($rest !~ /^\s*$/) {
378 die "$name: $.: Gargbage found after TEST_START\n$_";
382 $test_num = $old_test_num;
383 $repeat = $old_repeat;
386 } elsif (/^\s*DEFAULTS(.*)$/) {
391 if ($rest =~ /\s+SKIP(.*)/) {
398 if ($rest !~ /^\s*$/) {
399 die "$name: $.: Gargbage found after DEFAULTS\n$_";
402 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
410 ($lvalue eq "NUM_TESTS" ||
411 $lvalue eq "LOG_FILE" ||
412 $lvalue eq "CLEAR_LOG")) {
413 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
416 if ($lvalue eq "NUM_TESTS") {
418 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
421 die "$name: $.: NUM_TESTS must be set in default section\n";
426 if ($default || $lvalue =~ /\[\d+\]$/) {
427 set_value
($lvalue, $rvalue);
429 my $val = "$lvalue\[$test_num\]";
430 set_value
($val, $rvalue);
433 $repeats{$val} = $repeat;
436 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
442 # process config variables.
443 # Config variables are only active while reading the
444 # config and can be defined anywhere. They also ignore
445 # TEST_START and DEFAULTS, but are skipped if they are in
446 # on of these sections that have SKIP defined.
447 # The save variable can be
448 # defined multiple times and the new one simply overrides
450 set_variable
($lvalue, $rvalue);
453 die "$name: $.: Garbage found in config\n$_";
460 $test_num += $repeat - 1;
461 $opt{"NUM_TESTS"} = $test_num;
464 # make sure we have all mandatory configs
469 foreach my $default (keys %default) {
470 if (!defined($opt{$default})) {
471 $opt{$default} = $default{$default};
477 if (defined($opt{"LOG_FILE"})) {
478 open(OUT
, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
485 if (defined($opt{"LOG_FILE"})) {
500 # try to reboot normally
501 if (run_command
$reboot) {
502 if (defined($powercycle_after_reboot)) {
503 sleep $powercycle_after_reboot;
504 run_command
"$power_cycle";
507 # nope? power cycle it.
508 run_command
"$power_cycle";
515 return $test_type eq "build" ||
516 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
517 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build");
521 doprint
"CRITICAL FAILURE... ", @_, "\n";
525 if ($reboot_on_error && !do_not_reboot
) {
527 doprint
"REBOOTING\n";
530 } elsif ($poweroff_on_error && defined($power_off)) {
531 doprint
"POWERING OFF\n";
535 if (defined($opt{"LOG_FILE"})) {
536 print " See $opt{LOG_FILE} for more info.\n";
547 my $pid = open($fp, "$console|") or
548 dodie
"Can't open console $console";
550 $flags = fcntl($fp, F_GETFL
, 0) or
551 dodie
"Can't get flags for the socket: $!";
552 $flags = fcntl($fp, F_SETFL
, $flags | O_NONBLOCK
) or
553 dodie
"Can't set flags for the socket: $!";
561 doprint
"kill child process $pid\n";
569 if ($monitor_cnt++) {
572 $monitor_fp = \
*MONFD
;
573 $monitor_pid = open_console
$monitor_fp;
577 open(MONFD
, "Stop perl from warning about single use of MONFD");
581 if (--$monitor_cnt) {
584 close_console
($monitor_fp, $monitor_pid);
587 sub wait_for_monitor
{
591 doprint
"** Wait for monitor to settle down **\n";
593 # read the monitor and wait for the system to calm down
595 $line = wait_for_input
($monitor_fp, $time);
596 print "$line" if (defined($line));
597 } while (defined($line));
598 print "** Monitor flushed **\n";
603 if ($die_on_failure) {
611 # no need to reboot for just building.
612 if (!do_not_reboot
) {
613 doprint
"REBOOTING\n";
616 wait_for_monitor
$sleep_time;
620 doprint
"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
621 doprint
"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
622 doprint
"KTEST RESULT: TEST $i Failed: ", @_, "\n";
623 doprint
"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
624 doprint
"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
626 return 1 if (!defined($store_failures));
629 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
630 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
632 my $type = $build_type;
633 if ($type =~ /useconfig/) {
637 my $dir = "$machine-$test_type-$type-fail-$date";
638 my $faildir = "$store_failures/$dir";
642 die "can't create $faildir";
644 if (-f
"$output_config") {
645 cp
"$output_config", "$faildir/config" or
646 die "failed to copy .config";
649 cp
$buildlog, "$faildir/buildlog" or
650 die "failed to move $buildlog";
653 cp
$dmesg, "$faildir/dmesg" or
654 die "failed to move $dmesg";
657 doprint
"*** Saved info to $faildir ***\n";
668 $command =~ s/\$SSH_USER/$ssh_user/g;
669 $command =~ s/\$MACHINE/$machine/g;
671 doprint
("$command ... ");
673 $pid = open(CMD
, "$command 2>&1 |") or
674 (fail
"unable to exec $command" and return 0);
676 if (defined($opt{"LOG_FILE"})) {
677 open(LOG
, ">>$opt{LOG_FILE}") or
678 dodie
"failed to write to log";
682 if (defined($redirect)) {
683 open (RD
, ">$redirect") or
684 dodie
"failed to write to redirect $redirect";
689 print LOG
if ($dolog);
697 close(LOG
) if ($dolog);
698 close(RD
) if ($dord);
711 my $cp_exec = $ssh_exec;
713 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
714 return run_command
"$cp_exec";
718 my ($src, $dst) = @_;
719 my $cp_scp = $scp_to_target;
721 $cp_scp =~ s/\$SRC_FILE/$src/g;
722 $cp_scp =~ s/\$DST_FILE/$dst/g;
724 return run_command
"$cp_scp";
729 if ($reboot_type ne "grub") {
732 return if (defined($grub_number));
734 doprint
"Find grub menu ... ";
737 my $ssh_grub = $ssh_exec;
738 $ssh_grub =~ s
,\
$SSH_COMMAND,cat
/boot/grub
/menu
.lst
,g
;
740 open(IN
, "$ssh_grub |")
741 or die "unable to get menu.lst";
744 if (/^\s*title\s+$grub_menu\s*$/) {
747 } elsif (/^\s*title\s/) {
753 die "Could not find '$grub_menu' in /boot/grub/menu on $machine"
754 if ($grub_number < 0);
755 doprint
"$grub_number\n";
760 my ($fp, $time) = @_;
766 if (!defined($time)) {
771 vec($rin, fileno($fp), 1) = 1;
772 $ready = select($rin, undef, undef, $time);
776 # try to read one char at a time
777 while (sysread $fp, $ch, 1) {
779 last if ($ch eq "\n");
782 if (!length($line)) {
790 if ($reboot_type eq "grub") {
791 run_ssh
"'(echo \"savedefault --default=$grub_number --once\" | grub --batch && reboot)'";
795 run_command
"$reboot_script";
801 doprint
"git rev-list --max-count=1 $commit ... ";
802 my $sha1 = `git rev-list --max-count=1 $commit`;
809 dodie
"Failed to get git $commit";
822 my $skip_call_trace = 0;
830 open(DMESG
, "> $dmesg") or
831 die "unable to write to $dmesg";
837 my $monitor_start = time;
843 $line = wait_for_input
($monitor_fp, $booted_timeout);
845 $line = wait_for_input
($monitor_fp);
848 last if (!defined($line));
853 # we are not guaranteed to get a full line
856 if ($full_line =~ /$success_line/) {
858 $success_start = time;
861 if ($booted && defined($stop_after_success) &&
862 $stop_after_success >= 0) {
864 if ($now - $success_start >= $stop_after_success) {
865 doprint
"Test forced to stop after $stop_after_success seconds after success\n";
870 if ($full_line =~ /\[ backtrace testing \]/) {
871 $skip_call_trace = 1;
874 if ($full_line =~ /call trace:/i) {
875 if (!$bug && !$skip_call_trace) {
877 $failure_start = time;
881 if ($bug && defined($stop_after_failure) &&
882 $stop_after_failure >= 0) {
884 if ($now - $failure_start >= $stop_after_failure) {
885 doprint
"Test forced to stop after $stop_after_failure seconds after failure\n";
890 if ($full_line =~ /\[ end of backtrace testing \]/) {
891 $skip_call_trace = 0;
894 if ($full_line =~ /Kernel panic -/) {
895 $failure_start = time;
903 if ($stop_test_after > 0 && !$booted && !$bug) {
904 if (time - $monitor_start > $stop_test_after) {
905 doprint
"STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
914 return 0 if ($in_bisect);
915 fail
"failed - got a bug report" and return 0;
919 return 0 if ($in_bisect);
920 fail
"failed - never got a boot prompt." and return 0;
928 run_scp
"$outputdir/$build_target", "$target_image" or
929 dodie
"failed to copy image";
931 my $install_mods = 0;
933 # should we process modules?
935 open(IN
, "$output_config") or dodie
("Can't read config file");
937 if (/CONFIG_MODULES(=y)?/) {
938 $install_mods = 1 if (defined($1));
944 if (!$install_mods) {
945 doprint
"No modules needed\n";
949 run_command
"$make INSTALL_MOD_PATH=$tmpdir modules_install" or
950 dodie
"Failed to install modules";
952 my $modlib = "/lib/modules/$version";
953 my $modtar = "ktest-mods.tar.bz2";
955 run_ssh
"rm -rf $modlib" or
956 dodie
"failed to remove old mods: $modlib";
958 # would be nice if scp -r did not follow symbolic links
959 run_command
"cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
960 dodie
"making tarball";
962 run_scp
"$tmpdir/$modtar", "/tmp" or
963 dodie
"failed to copy modules";
965 unlink "$tmpdir/$modtar";
967 run_ssh
"'(cd / && tar xf /tmp/$modtar)'" or
968 dodie
"failed to tar modules";
970 run_ssh
"rm -f /tmp/$modtar";
972 return if (!defined($post_install));
974 my $cp_post_install = $post_install;
975 $cp_post_install =~ s/\$KERNEL_VERSION/$version/g;
976 run_command
"$cp_post_install" or
977 dodie
"Failed to run post install";
983 my @files = `git show $patch | diffstat -l`;
985 open(IN
, "git show $patch |") or
986 dodie
"failed to show $patch";
988 if (m
,^--- a
/(.*),) {
990 $files[$#files] = $1;
995 open(IN
, $buildlog) or dodie
"Can't open $buildlog";
997 if (/^\s*(.*?):.*(warning|error)/) {
999 foreach my $file (@files) {
1000 my $fullpath = "$builddir/$file";
1001 if ($file eq $err || $fullpath eq $err) {
1002 fail
"$file built with warnings" and return 0;
1012 sub make_oldconfig
{
1013 my ($defconfig) = @_;
1015 if (!run_command
"$defconfig $make oldnoconfig") {
1016 # Perhaps oldnoconfig doesn't exist in this version of the kernel
1017 # try a yes '' | oldconfig
1018 doprint
"oldnoconfig failed, trying yes '' | make oldconfig\n";
1019 run_command
"yes '' | $defconfig $make oldconfig" or
1020 dodie
"failed make config oldconfig";
1030 if ($type =~ /^useconfig:(.*)/) {
1031 run_command
"cp $1 $output_config" or
1032 dodie
"could not copy $1 to .config";
1034 $type = "oldconfig";
1037 # old config can ask questions
1038 if ($type eq "oldconfig") {
1039 $type = "oldnoconfig";
1041 # allow for empty configs
1042 run_command
"touch $output_config";
1044 run_command
"mv $output_config $outputdir/config_temp" or
1045 dodie
"moving .config";
1047 if (!$noclean && !run_command
"$make mrproper") {
1048 dodie
"make mrproper";
1051 run_command
"mv $outputdir/config_temp $output_config" or
1052 dodie
"moving config_temp";
1054 } elsif (!$noclean) {
1055 unlink "$output_config";
1056 run_command
"$make mrproper" or
1057 dodie
"make mrproper";
1060 # add something to distinguish this build
1061 open(OUT
, "> $outputdir/localversion") or dodie
("Can't make localversion file");
1062 print OUT
"$localversion\n";
1065 if (defined($minconfig)) {
1066 $defconfig = "KCONFIG_ALLCONFIG=$minconfig";
1069 if ($type eq "oldnoconfig") {
1070 make_oldconfig
$defconfig;
1072 run_command
"$defconfig $make $type" or
1073 dodie
"failed make config";
1076 $redirect = "$buildlog";
1077 if (!run_command
"$make $build_options") {
1079 # bisect may need this to pass
1080 return 0 if ($in_bisect);
1081 fail
"failed build" and return 0;
1089 if (!run_ssh
"halt" or defined($power_off)) {
1090 if (defined($poweroff_after_halt)) {
1091 sleep $poweroff_after_halt;
1092 run_command
"$power_off";
1096 run_command
"$power_off";
1105 doprint
"\n\n*******************************************\n";
1106 doprint
"*******************************************\n";
1107 doprint
"KTEST RESULT: TEST $i SUCCESS!!!! **\n";
1108 doprint
"*******************************************\n";
1109 doprint
"*******************************************\n";
1111 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot
) {
1112 doprint
"Reboot and wait $sleep_time seconds\n";
1115 wait_for_monitor
$sleep_time;
1121 # get the release name
1122 doprint
"$make kernelrelease ... ";
1123 $version = `$make kernelrelease | tail -1`;
1125 doprint
"$version\n";
1130 doprint
"Pass or fail? [p/f]";
1133 if ($ans eq "p" || $ans eq "P") {
1135 } elsif ($ans eq "f" || $ans eq "F") {
1138 print "Please answer 'P' or 'F'\n";
1143 sub child_run_test
{
1146 # child should have no power
1147 $reboot_on_error = 0;
1148 $poweroff_on_error = 0;
1149 $die_on_failure = 1;
1151 run_command
$run_test or $failed = 1;
1157 sub child_finished
{
1170 doprint
"run test $run_test\n";
1174 $SIG{CHLD
} = qw(child_finished);
1178 child_run_test
if (!$child_pid);
1183 $line = wait_for_input
($monitor_fp, 1);
1184 if (defined($line)) {
1186 # we are not guaranteed to get a full line
1187 $full_line .= $line;
1190 if ($full_line =~ /call trace:/i) {
1194 if ($full_line =~ /Kernel panic -/) {
1198 if ($line =~ /\n/) {
1202 } while (!$child_done && !$bug);
1205 my $failure_start = time;
1208 $line = wait_for_input
($monitor_fp, 1);
1209 if (defined($line)) {
1213 if ($now - $failure_start >= $stop_after_failure) {
1216 } while (defined($line));
1218 doprint
"Detected kernel crash!\n";
1219 # kill the child with extreme prejudice
1223 waitpid $child_pid, 0;
1226 if ($bug || $child_exit) {
1227 return 0 if $in_bisect;
1228 fail
"test failed" and return 0;
1233 sub run_git_bisect
{
1236 doprint
"$command ... ";
1238 my $output = `$command 2>&1`;
1245 dodie
"Failed to git bisect";
1248 doprint
"SUCCESS\n";
1249 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
1250 doprint
"$1 [$2]\n";
1251 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
1253 doprint
"Found bad commit... $1\n";
1256 # we already logged it, just print it now.
1264 doprint
"Reboot and sleep $bisect_sleep_time seconds\n";
1267 wait_for_monitor
$bisect_sleep_time;
1271 # returns 1 on success, 0 on failure, -1 on skip
1272 sub run_bisect_test
{
1273 my ($type, $buildtype) = @_;
1282 build
$buildtype or $failed = 1;
1284 if ($type ne "build") {
1285 if ($failed && $bisect_skip) {
1289 dodie
"Failed on build" if $failed;
1297 monitor
or $failed = 1;
1299 if ($type ne "boot") {
1300 if ($failed && $bisect_skip) {
1306 dodie
"Failed on boot" if $failed;
1308 do_run_test
or $failed = 1;
1319 # reboot the box to a kernel we can ssh to
1320 if ($type ne "build") {
1330 my $buildtype = "oldconfig";
1332 # We should have a minconfig to use?
1333 if (defined($minconfig)) {
1334 $buildtype = "useconfig:$minconfig";
1337 my $ret = run_bisect_test
$type, $buildtype;
1339 if ($bisect_manual) {
1340 $ret = answer_bisect
;
1343 # Are we looking for where it worked, not failed?
1344 if ($reverse_bisect) {
1350 } elsif ($ret == 0) {
1352 } elsif ($bisect_skip) {
1353 doprint
"HIT A BAD COMMIT ... SKIPPING\n";
1363 die "BISECT_GOOD[$i] not defined\n" if (!defined($opt{"BISECT_GOOD[$i]"}));
1364 die "BISECT_BAD[$i] not defined\n" if (!defined($opt{"BISECT_BAD[$i]"}));
1365 die "BISECT_TYPE[$i] not defined\n" if (!defined($opt{"BISECT_TYPE[$i]"}));
1367 my $good = $opt{"BISECT_GOOD[$i]"};
1368 my $bad = $opt{"BISECT_BAD[$i]"};
1369 my $type = $opt{"BISECT_TYPE[$i]"};
1370 my $start = $opt{"BISECT_START[$i]"};
1371 my $replay = $opt{"BISECT_REPLAY[$i]"};
1372 my $start_files = $opt{"BISECT_FILES[$i]"};
1374 if (defined($start_files)) {
1375 $start_files = " -- " . $start_files;
1380 # convert to true sha1's
1381 $good = get_sha1
($good);
1382 $bad = get_sha1
($bad);
1384 if (defined($opt{"BISECT_REVERSE[$i]"}) &&
1385 $opt{"BISECT_REVERSE[$i]"} == 1) {
1386 doprint
"Performing a reverse bisect (bad is good, good is bad!)\n";
1387 $reverse_bisect = 1;
1389 $reverse_bisect = 0;
1392 # Can't have a test without having a test to run
1393 if ($type eq "test" && !defined($run_test)) {
1397 my $check = $opt{"BISECT_CHECK[$i]"};
1398 if (defined($check) && $check ne "0") {
1401 my $head = get_sha1
("HEAD");
1403 if ($check ne "good") {
1404 doprint
"TESTING BISECT BAD [$bad]\n";
1405 run_command
"git checkout $bad" or
1406 die "Failed to checkout $bad";
1408 $result = run_bisect
$type;
1410 if ($result ne "bad") {
1411 fail
"Tested BISECT_BAD [$bad] and it succeeded" and return 0;
1415 if ($check ne "bad") {
1416 doprint
"TESTING BISECT GOOD [$good]\n";
1417 run_command
"git checkout $good" or
1418 die "Failed to checkout $good";
1420 $result = run_bisect
$type;
1422 if ($result ne "good") {
1423 fail
"Tested BISECT_GOOD [$good] and it failed" and return 0;
1427 # checkout where we started
1428 run_command
"git checkout $head" or
1429 die "Failed to checkout $head";
1432 run_command
"git bisect start$start_files" or
1433 dodie
"could not start bisect";
1435 run_command
"git bisect good $good" or
1436 dodie
"could not set bisect good to $good";
1438 run_git_bisect
"git bisect bad $bad" or
1439 dodie
"could not set bisect bad to $bad";
1441 if (defined($replay)) {
1442 run_command
"git bisect replay $replay" or
1443 dodie
"failed to run replay";
1446 if (defined($start)) {
1447 run_command
"git checkout $start" or
1448 dodie
"failed to checkout $start";
1453 $result = run_bisect
$type;
1454 $test = run_git_bisect
"git bisect $result";
1457 run_command
"git bisect log" or
1458 dodie
"could not capture git bisect log";
1460 run_command
"git bisect reset" or
1461 dodie
"could not reset git bisect";
1463 doprint
"Bad commit was [$bisect_bad]\n";
1476 sub process_config_ignore
{
1480 or dodie
"Failed to read $config";
1483 if (/^((CONFIG\S*)=.*)/) {
1484 $config_ignore{$2} = $1;
1491 sub read_current_config
{
1492 my ($config_ref) = @_;
1494 %{$config_ref} = ();
1495 undef %{$config_ref};
1497 my @key = keys %{$config_ref};
1499 print "did not delete!\n";
1502 open (IN
, "$output_config");
1505 if (/^(CONFIG\S+)=(.*)/) {
1506 ${$config_ref}{$1} = $2;
1512 sub get_dependencies
{
1515 my $arr = $dependency{$config};
1516 if (!defined($arr)) {
1522 foreach my $dep (@
{$arr}) {
1523 print "ADD DEP $dep\n";
1524 @deps = (@deps, get_dependencies
$dep);
1533 open(OUT
, ">$output_config") or dodie
"Can not write to $output_config";
1535 foreach my $config (@configs) {
1536 print OUT
"$config_set{$config}\n";
1537 my @deps = get_dependencies
$config;
1538 foreach my $dep (@deps) {
1539 print OUT
"$config_set{$dep}\n";
1543 foreach my $config (keys %config_ignore) {
1544 print OUT
"$config_ignore{$config}\n";
1552 sub compare_configs
{
1555 foreach my $item (keys %a) {
1556 if (!defined($b{$item})) {
1557 print "diff $item\n";
1565 print "diff2 $keys[0]\n";
1567 return -1 if ($#keys >= 0);
1572 sub run_config_bisect_test
{
1575 return run_bisect_test
$type, "oldconfig";
1578 sub process_passed
{
1581 doprint
"These configs had no failure: (Enabling them for further compiles)\n";
1582 # Passed! All these configs are part of a good compile.
1583 # Add them to the min options.
1584 foreach my $config (keys %configs) {
1585 if (defined($config_list{$config})) {
1586 doprint
" removing $config\n";
1587 $config_ignore{$config} = $config_list{$config};
1588 delete $config_list{$config};
1591 doprint
"config copied to $outputdir/config_good\n";
1592 run_command
"cp -f $output_config $outputdir/config_good";
1595 sub process_failed
{
1598 doprint
"\n\n***************************************\n";
1599 doprint
"Found bad config: $config\n";
1600 doprint
"***************************************\n\n";
1603 sub run_config_bisect
{
1605 my @start_list = keys %config_list;
1607 if ($#start_list < 0) {
1608 doprint
"No more configs to test!!!\n";
1612 doprint
"***** RUN TEST ***\n";
1613 my $type = $opt{"CONFIG_BISECT_TYPE[$iteration]"};
1617 my $count = $#start_list + 1;
1618 doprint
" $count configs to test\n";
1620 my $half = int($#start_list / 2);
1623 my @tophalf = @start_list[0 .. $half];
1625 create_config
@tophalf;
1626 read_current_config \
%current_config;
1628 $count = $#tophalf + 1;
1629 doprint
"Testing $count configs\n";
1631 # make sure we test something
1632 foreach my $config (@tophalf) {
1633 if (defined($current_config{$config})) {
1639 # try the other half
1640 doprint
"Top half produced no set configs, trying bottom half\n";
1641 @tophalf = @start_list[$half + 1 .. $#start_list];
1642 create_config
@tophalf;
1643 read_current_config \
%current_config;
1644 foreach my $config (@tophalf) {
1645 if (defined($current_config{$config})) {
1651 doprint
"Failed: Can't make new config with current configs\n";
1652 foreach my $config (@start_list) {
1653 doprint
" CONFIG: $config\n";
1657 $count = $#tophalf + 1;
1658 doprint
"Testing $count configs\n";
1661 $ret = run_config_bisect_test
$type;
1662 if ($bisect_manual) {
1663 $ret = answer_bisect
;
1666 process_passed
%current_config;
1670 doprint
"This config had a failure.\n";
1671 doprint
"Removing these configs that were not set in this config:\n";
1672 doprint
"config copied to $outputdir/config_bad\n";
1673 run_command
"cp -f $output_config $outputdir/config_bad";
1675 # A config exists in this group that was bad.
1676 foreach my $config (keys %config_list) {
1677 if (!defined($current_config{$config})) {
1678 doprint
" removing $config\n";
1679 delete $config_list{$config};
1683 @start_list = @tophalf;
1685 if ($#start_list == 0) {
1686 process_failed
$start_list[0];
1690 # remove half the configs we are looking at and see if
1692 $half = int($#start_list / 2);
1693 } while ($#start_list > 0);
1695 # we found a single config, try it again unless we are running manually
1697 if ($bisect_manual) {
1698 process_failed
$start_list[0];
1702 my @tophalf = @start_list[0 .. 0];
1704 $ret = run_config_bisect_test
$type;
1706 process_passed
%current_config;
1710 process_failed
$start_list[0];
1717 my $start_config = $opt{"CONFIG_BISECT[$i]"};
1719 my $tmpconfig = "$tmpdir/use_config";
1721 # Make the file with the bad config and the min config
1722 if (defined($minconfig)) {
1723 # read the min config for things to ignore
1724 run_command
"cp $minconfig $tmpconfig" or
1725 dodie
"failed to copy $minconfig to $tmpconfig";
1731 if (defined($addconfig)) {
1732 run_command
"cat $addconfig >> $tmpconfig" or
1733 dodie
"failed to append $addconfig";
1737 if (-f
$tmpconfig) {
1738 $defconfig = "KCONFIG_ALLCONFIG=$tmpconfig";
1739 process_config_ignore
$tmpconfig;
1742 # now process the start config
1743 run_command
"cp $start_config $output_config" or
1744 dodie
"failed to copy $start_config to $output_config";
1746 # read directly what we want to check
1748 open (IN
, $output_config)
1749 or dodie
"faied to open $output_config";
1752 if (/^((CONFIG\S*)=.*)/) {
1753 $config_check{$2} = $1;
1758 # Now run oldconfig with the minconfig (and addconfigs)
1759 make_oldconfig
$defconfig;
1761 # check to see what we lost (or gained)
1762 open (IN
, $output_config)
1763 or dodie
"Failed to read $start_config";
1765 my %removed_configs;
1769 if (/^((CONFIG\S*)=.*)/) {
1770 # save off all options
1771 $config_set{$2} = $1;
1772 if (defined($config_check{$2})) {
1773 if (defined($config_ignore{$2})) {
1774 $removed_configs{$2} = $1;
1776 $config_list{$2} = $1;
1778 } elsif (!defined($config_ignore{$2})) {
1779 $added_configs{$2} = $1;
1780 $config_list{$2} = $1;
1786 my @confs = keys %removed_configs;
1788 doprint
"Configs overridden by default configs and removed from check:\n";
1789 foreach my $config (@confs) {
1790 doprint
" $config\n";
1793 @confs = keys %added_configs;
1795 doprint
"Configs appearing in make oldconfig and added:\n";
1796 foreach my $config (@confs) {
1797 doprint
" $config\n";
1804 # Sometimes kconfig does weird things. We must make sure
1805 # that the config we autocreate has everything we need
1806 # to test, otherwise we may miss testing configs, or
1807 # may not be able to create a new config.
1808 # Here we create a config with everything set.
1809 create_config
(keys %config_list);
1810 read_current_config \
%config_test;
1811 foreach my $config (keys %config_list) {
1812 if (!defined($config_test{$config})) {
1815 doprint
"Configs not produced by kconfig (will not be checked):\n";
1817 doprint
" $config\n";
1818 delete $config_list{$config};
1823 $ret = run_config_bisect
;
1826 return $ret if ($ret < 0);
1831 sub patchcheck_reboot
{
1832 doprint
"Reboot and sleep $patchcheck_sleep_time seconds\n";
1835 wait_for_monitor
$patchcheck_sleep_time;
1842 die "PATCHCHECK_START[$i] not defined\n"
1843 if (!defined($opt{"PATCHCHECK_START[$i]"}));
1844 die "PATCHCHECK_TYPE[$i] not defined\n"
1845 if (!defined($opt{"PATCHCHECK_TYPE[$i]"}));
1847 my $start = $opt{"PATCHCHECK_START[$i]"};
1850 if (defined($opt{"PATCHCHECK_END[$i]"})) {
1851 $end = $opt{"PATCHCHECK_END[$i]"};
1854 # Get the true sha1's since we can use things like HEAD~3
1855 $start = get_sha1
($start);
1856 $end = get_sha1
($end);
1858 my $type = $opt{"PATCHCHECK_TYPE[$i]"};
1860 # Can't have a test without having a test to run
1861 if ($type eq "test" && !defined($run_test)) {
1865 open (IN
, "git log --pretty=oneline $end|") or
1866 dodie
"could not get git list";
1872 $list[$#list+1] = $_;
1873 last if (/^$start/);
1877 if ($list[$#list] !~ /^$start/) {
1878 fail
"SHA1 $start not found";
1881 # go backwards in the list
1882 @list = reverse @list;
1884 my $save_clean = $noclean;
1887 foreach my $item (@list) {
1889 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
1891 doprint
"\nProcessing commit $item\n\n";
1893 run_command
"git checkout $sha1" or
1894 die "Failed to checkout $sha1";
1896 # only clean on the first and last patch
1897 if ($item eq $list[0] ||
1898 $item eq $list[$#list]) {
1899 $noclean = $save_clean;
1904 if (defined($minconfig)) {
1905 build
"useconfig:$minconfig" or return 0;
1907 # ?? no config to use?
1908 build
"oldconfig" or return 0;
1911 check_buildlog
$sha1 or return 0;
1913 next if ($type eq "build");
1922 monitor
or $failed = 1;
1924 if (!$failed && $type ne "boot"){
1925 do_run_test
or $failed = 1;
1928 return 0 if ($failed);
1939 $#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl config-file\n";
1942 $ktest_config = $ARGV[0];
1943 if (! -f
$ktest_config) {
1944 print "$ktest_config does not exist.\n";
1947 print "Create it? [Y/n] ";
1950 if ($ans =~ /^\s*$/) {
1953 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
1954 print "Please answer either 'y' or 'n'.\n";
1956 if ($ans !~ /^y$/i) {
1961 $ktest_config = "ktest.conf";
1964 if (! -f
$ktest_config) {
1965 open(OUT
, ">$ktest_config") or die "Can not create $ktest_config";
1967 # Generated by ktest.pl
1969 # Define each test with TEST_START
1970 # The config options below it will override the defaults
1978 read_config
$ktest_config;
1980 # Append any configs entered in manually to the config file.
1981 my @new_configs = keys %entered_configs;
1982 if ($#new_configs >= 0) {
1983 print "\nAppending entered in configs to $ktest_config\n";
1984 open(OUT
, ">>$ktest_config") or die "Can not append to $ktest_config";
1985 foreach my $config (@new_configs) {
1986 print OUT
"$config = $entered_configs{$config}\n";
1987 $opt{$config} = $entered_configs{$config};
1991 if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
1992 unlink $opt{"LOG_FILE"};
1995 doprint
"\n\nSTARTING AUTOMATED TESTS\n\n";
1997 for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
2000 doprint
"DEFAULT OPTIONS:\n";
2002 doprint
"\nTEST $i OPTIONS";
2003 if (defined($repeat_tests{$i})) {
2004 $repeat = $repeat_tests{$i};
2005 doprint
" ITERATE $repeat";
2010 foreach my $option (sort keys %opt) {
2012 if ($option =~ /\[(\d+)\]$/) {
2018 doprint
"$option = $opt{$option}\n";
2022 sub __set_test_option
{
2023 my ($name, $i) = @_;
2025 my $option = "$name\[$i\]";
2027 if (defined($opt{$option})) {
2028 return $opt{$option};
2031 foreach my $test (keys %repeat_tests) {
2033 $i < $test + $repeat_tests{$test}) {
2034 $option = "$name\[$test\]";
2035 if (defined($opt{$option})) {
2036 return $opt{$option};
2041 if (defined($opt{$name})) {
2049 my ($option, $i) = @_;
2051 # Add space to evaluate the character before $
2052 $option = " $option";
2055 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
2060 # Append beginning of line
2061 $retval = "$retval$start";
2063 # If the iteration option OPT[$i] exists, then use that.
2064 # otherwise see if the default OPT (without [$i]) exists.
2066 my $o = "$var\[$i\]";
2068 if (defined($opt{$o})) {
2070 $retval = "$retval$o";
2071 } elsif (defined($opt{$var})) {
2073 $retval = "$retval$o";
2075 $retval = "$retval\$\{$var\}";
2081 $retval = "$retval$option";
2088 sub set_test_option
{
2089 my ($name, $i) = @_;
2091 my $option = __set_test_option
($name, $i);
2092 return $option if (!defined($option));
2096 # Since an option can evaluate to another option,
2097 # keep iterating until we do not evaluate any more
2100 while ($prev ne $option) {
2101 # Check for recursive evaluations.
2102 # 100 deep should be more than enough.
2104 die "Over 100 evaluations accurred with $name\n" .
2105 "Check for recursive variables\n";
2108 $option = eval_option
($option, $i);
2114 # First we need to do is the builds
2115 for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
2119 my $makecmd = set_test_option
("MAKE_CMD", $i);
2121 $machine = set_test_option
("MACHINE", $i);
2122 $ssh_user = set_test_option
("SSH_USER", $i);
2123 $tmpdir = set_test_option
("TMP_DIR", $i);
2124 $outputdir = set_test_option
("OUTPUT_DIR", $i);
2125 $builddir = set_test_option
("BUILD_DIR", $i);
2126 $test_type = set_test_option
("TEST_TYPE", $i);
2127 $build_type = set_test_option
("BUILD_TYPE", $i);
2128 $build_options = set_test_option
("BUILD_OPTIONS", $i);
2129 $power_cycle = set_test_option
("POWER_CYCLE", $i);
2130 $reboot = set_test_option
("REBOOT", $i);
2131 $noclean = set_test_option
("BUILD_NOCLEAN", $i);
2132 $minconfig = set_test_option
("MIN_CONFIG", $i);
2133 $run_test = set_test_option
("TEST", $i);
2134 $addconfig = set_test_option
("ADD_CONFIG", $i);
2135 $reboot_type = set_test_option
("REBOOT_TYPE", $i);
2136 $grub_menu = set_test_option
("GRUB_MENU", $i);
2137 $post_install = set_test_option
("POST_INSTALL", $i);
2138 $reboot_script = set_test_option
("REBOOT_SCRIPT", $i);
2139 $reboot_on_error = set_test_option
("REBOOT_ON_ERROR", $i);
2140 $poweroff_on_error = set_test_option
("POWEROFF_ON_ERROR", $i);
2141 $die_on_failure = set_test_option
("DIE_ON_FAILURE", $i);
2142 $power_off = set_test_option
("POWER_OFF", $i);
2143 $powercycle_after_reboot = set_test_option
("POWERCYCLE_AFTER_REBOOT", $i);
2144 $poweroff_after_halt = set_test_option
("POWEROFF_AFTER_HALT", $i);
2145 $sleep_time = set_test_option
("SLEEP_TIME", $i);
2146 $bisect_sleep_time = set_test_option
("BISECT_SLEEP_TIME", $i);
2147 $patchcheck_sleep_time = set_test_option
("PATCHCHECK_SLEEP_TIME", $i);
2148 $bisect_manual = set_test_option
("BISECT_MANUAL", $i);
2149 $bisect_skip = set_test_option
("BISECT_SKIP", $i);
2150 $store_failures = set_test_option
("STORE_FAILURES", $i);
2151 $timeout = set_test_option
("TIMEOUT", $i);
2152 $booted_timeout = set_test_option
("BOOTED_TIMEOUT", $i);
2153 $console = set_test_option
("CONSOLE", $i);
2154 $success_line = set_test_option
("SUCCESS_LINE", $i);
2155 $stop_after_success = set_test_option
("STOP_AFTER_SUCCESS", $i);
2156 $stop_after_failure = set_test_option
("STOP_AFTER_FAILURE", $i);
2157 $stop_test_after = set_test_option
("STOP_TEST_AFTER", $i);
2158 $build_target = set_test_option
("BUILD_TARGET", $i);
2159 $ssh_exec = set_test_option
("SSH_EXEC", $i);
2160 $scp_to_target = set_test_option
("SCP_TO_TARGET", $i);
2161 $target_image = set_test_option
("TARGET_IMAGE", $i);
2162 $localversion = set_test_option
("LOCALVERSION", $i);
2164 chdir $builddir || die "can't change directory to $builddir";
2168 die "can't create $tmpdir";
2171 $ENV{"SSH_USER"} = $ssh_user;
2172 $ENV{"MACHINE"} = $machine;
2174 $target = "$ssh_user\@$machine";
2176 $buildlog = "$tmpdir/buildlog-$machine";
2177 $dmesg = "$tmpdir/dmesg-$machine";
2178 $make = "$makecmd O=$outputdir";
2179 $output_config = "$outputdir/.config";
2181 if ($reboot_type eq "grub") {
2182 dodie
"GRUB_MENU not defined" if (!defined($grub_menu));
2183 } elsif (!defined($reboot_script)) {
2184 dodie
"REBOOT_SCRIPT not defined"
2187 my $run_type = $build_type;
2188 if ($test_type eq "patchcheck") {
2189 $run_type = $opt{"PATCHCHECK_TYPE[$i]"};
2190 } elsif ($test_type eq "bisect") {
2191 $run_type = $opt{"BISECT_TYPE[$i]"};
2192 } elsif ($test_type eq "config_bisect") {
2193 $run_type = $opt{"CONFIG_BISECT_TYPE[$i]"};
2196 # mistake in config file?
2197 if (!defined($run_type)) {
2198 $run_type = "ERROR";
2202 doprint
"RUNNING TEST $i of $opt{NUM_TESTS} with option $test_type $run_type\n\n";
2207 if (!defined($minconfig)) {
2208 $minconfig = $addconfig;
2210 } elsif (defined($addconfig)) {
2211 run_command
"cat $addconfig $minconfig > $tmpdir/add_config" or
2212 dodie
"Failed to create temp config";
2213 $minconfig = "$tmpdir/add_config";
2216 my $checkout = $opt{"CHECKOUT[$i]"};
2217 if (defined($checkout)) {
2218 run_command
"git checkout $checkout" or
2219 die "failed to checkout $checkout";
2222 if ($test_type eq "bisect") {
2225 } elsif ($test_type eq "config_bisect") {
2228 } elsif ($test_type eq "patchcheck") {
2233 if ($build_type ne "nobuild") {
2234 build
$build_type or next;
2237 if ($test_type ne "build") {
2244 monitor
or $failed = 1;;
2246 if (!$failed && $test_type ne "boot" && defined($run_test)) {
2247 do_run_test
or $failed = 1;
2256 if ($opt{"POWEROFF_ON_SUCCESS"}) {
2258 } elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot
) {
2262 doprint
"\n $successes of $opt{NUM_TESTS} tests were successful\n\n";