10 our($VERSION, $verbose, $switches, $have_devel_corestack, $curtest,
11 $columns, @ISA, @EXPORT, @EXPORT_OK);
12 $have_devel_corestack = 0;
16 $ENV{HARNESS_ACTIVE} = 1;
18 # Some experimental versions of OS/2 build have broken $?
19 my $ignore_exitcode = $ENV{HARNESS_IGNORE_EXITCODE};
21 my $files_in_dir = $ENV{HARNESS_FILELEAK_IN_DIR};
23 my $tests_skipped = 0;
24 my $subtests_skipped = 0;
27 @EXPORT= qw(&runtests);
28 @EXPORT_OK= qw($verbose $switches);
32 $columns = $ENV{HARNESS_COLUMNS} || $ENV{COLUMNS} || 80;
34 sub globdir { opendir DIRH, shift; my @f = readdir DIRH; closedir DIRH; @f }
39 my($test,$te,$ok,$next,$max,$pct,$totbonus,@failed,%failedtests);
47 # pass -I flags to children
48 my $old5lib = $ENV{PERL5LIB};
50 # VMS has a 255-byte limit on the length of %ENV entries, so
51 # toss the ones that involve perl_root, the install location
55 $new5lib = join($Config{path_sep}, grep {!/perl_root/i;} @INC);
56 $switches =~ s/-(\S*[A-Z]\S*)/"-$1"/g;
59 $new5lib = join($Config{path_sep}, @INC);
61 local($ENV{'PERL5LIB'}) = $new5lib;
63 my @dir_files = globdir $files_in_dir if defined $files_in_dir;
64 my $t_start = new Benchmark;
65 while ($test = shift(@tests)) {
68 if ($^O eq 'VMS') { $te =~ s/^.*\.t\./[.t./s; }
69 my $blank = (' ' x 77);
70 my $leader = "$te" . '.' x (20 - length($te));
72 $ml = "\r$blank\r$leader"
73 if -t STDOUT and not $ENV{HARNESS_NOTTY} and not $verbose;
75 my $fh = new FileHandle;
76 $fh->open($test) or print "can't open $test. $!\n";
79 $s .= " $ENV{'HARNESS_PERL_SWITCHES'}"
80 if exists $ENV{'HARNESS_PERL_SWITCHES'};
81 $s .= join " ", q[ "-T"], map {qq["-I$_"]} @INC
82 if $first =~ /^#!.*\bperl.*-\w*T/;
83 $fh->close or print "can't close $test. $!\n";
84 my $cmd = ($ENV{'HARNESS_COMPILE_TEST'})
85 ? "./perl -I../lib ../utils/perlcc $test "
86 . "-run 2>> ./compilelog |"
88 $cmd = "MCR $cmd" if $^O eq 'VMS';
89 $fh->open($cmd) or print "can't run $test. $!\n";
90 $ok = $next = $max = 0;
100 if (/^1\.\.([0-9]+) todo([\d\s]+)\;/) {
102 for (split(/\s+/, $2)) { $todo{$_} = 1; }
106 } elsif (/^1\.\.([0-9]+)(\s*\#\s*[Ss]kip\S*(?>\s+)(.+))?/) {
111 $skip_reason = $3 if not $max and defined $3;
112 } elsif ($max && /^(not\s+)?ok\b/) {
114 if (/^not ok\s*(\d*)/){
115 $this = $1 if $1 > 0;
116 print "${ml}NOK $this" if $ml;
123 } elsif (/^ok\s*(\d*)(\s*\#\s*[Ss]kip\S*(?:(?>\s+)(.+))?)?/) {
124 $this = $1 if $1 > 0;
125 print "${ml}ok $this/$max" if $ml;
128 $skipped++ if defined $2;
130 $reason = 'unknown reason' if defined $2;
131 $reason = $3 if defined $3;
132 if (defined $reason and defined $skip_reason) {
133 # print "was: '$skip_reason' new '$reason'\n";
134 $skip_reason = 'various reasons'
135 if $skip_reason ne $reason;
136 } elsif (defined $reason) {
137 $skip_reason = $reason;
139 $bonus++, $totbonus++ if $todo{$this};
142 # print "Test output counter mismatch [test $this]\n";
143 # no need to warn probably
144 push @failed, $next..$this-1;
145 } elsif ($this < $next) {
146 #we have seen more "ok" lines than the number suggests
147 print "Confused test output: test $this answered after test ", $next-1, "\n";
153 $fh->close; # must close to reap child resource values
154 my $wstatus = $ignore_exitcode ? 0 : $?; # Can trust $? ?
156 $estatus = ($^O eq 'VMS'
157 ? eval 'use vmsish "status"; $estatus = $?'
160 my ($failed, $canon, $percent) = ('??', '??');
161 printf "${ml}dubious\n\tTest returned status $estatus (wstat %d, 0x%x)\n",
163 print "\t\t(VMS status is $estatus)\n" if $^O eq 'VMS';
164 if (corestatus($wstatus)) { # until we have a wait module
165 if ($have_devel_corestack) {
166 Devel::CoreStack::stack($^X);
168 print "\ttest program seems to have generated a core\n";
173 if ($next == $max + 1 and not @failed) {
174 print "\tafter all the subtests completed successfully\n";
176 $failed = 0; # But we do not set $canon!
178 push @failed, $next..$max;
180 (my $txt, $canon) = canonfailed($max,$skipped,@failed);
181 $percent = 100*(scalar @failed)/$max;
185 $failedtests{$test} = { canon => $canon, max => $max || '??',
187 name => $test, percent => $percent,
188 estat => $estatus, wstat => $wstatus,
190 } elsif ($ok == $max && $next == $max+1) {
191 if ($max and $skipped + $bonus) {
193 push(@msg, "$skipped/$max skipped: $skip_reason")
195 push(@msg, "$bonus/$max unexpectedly succeeded")
197 print "${ml}ok, ".join(', ', @msg)."\n";
200 } elsif (defined $skip_reason) {
201 print "skipped: $skip_reason\n";
204 print "skipped test on this platform\n";
210 push @failed, $next..$max;
213 my ($txt, $canon) = canonfailed($max,$skipped,@failed);
215 $failedtests{$test} = { canon => $canon, max => $max,
216 failed => scalar @failed,
217 name => $test, percent => 100*(scalar @failed)/$max,
218 estat => '', wstat => '',
221 print "Don't know which tests failed: got $ok ok, expected $max\n";
222 $failedtests{$test} = { canon => '??', max => $max,
224 name => $test, percent => undef,
225 estat => '', wstat => '',
229 } elsif ($next == 0) {
230 print "FAILED before any test output arrived\n";
232 $failedtests{$test} = { canon => '??', max => '??',
234 name => $test, percent => undef,
235 estat => '', wstat => '',
238 $subtests_skipped += $skipped;
239 if (defined $files_in_dir) {
240 my @new_dir_files = globdir $files_in_dir;
241 if (@new_dir_files != @dir_files) {
243 @f{@new_dir_files} = (1) x @new_dir_files;
244 delete @f{@dir_files};
245 my @f = sort keys %f;
246 print "LEAKED FILES: @f\n";
247 @dir_files = @new_dir_files;
251 my $t_total = timediff(new Benchmark, $t_start);
254 if (defined $old5lib) {
255 $ENV{PERL5LIB} = $old5lib;
257 delete $ENV{PERL5LIB};
261 $bonusmsg = (" ($totbonus subtest".($totbonus>1?'s':'').
262 " UNEXPECTEDLY SUCCEEDED)")
264 if ($tests_skipped) {
265 $bonusmsg .= ", $tests_skipped test" . ($tests_skipped != 1 ? 's' : '');
266 if ($subtests_skipped) {
267 $bonusmsg .= " and $subtests_skipped subtest"
268 . ($subtests_skipped != 1 ? 's' : '');
270 $bonusmsg .= ' skipped';
272 elsif ($subtests_skipped) {
273 $bonusmsg .= ", $subtests_skipped subtest"
274 . ($subtests_skipped != 1 ? 's' : '')
277 if ($bad == 0 && $totmax) {
278 print "All tests successful$bonusmsg.\n";
280 die "FAILED--no tests were run for some reason.\n";
281 } elsif ($totmax==0) {
282 my $blurb = $total==1 ? "script" : "scripts";
283 die "FAILED--$total test $blurb could be run, alas--no output ever seen\n";
285 $pct = sprintf("%.2f", $good / $total * 100);
286 my $subpct = sprintf " %d/%d subtests failed, %.2f%% okay.",
287 $totmax - $totok, $totmax, 100*$totok/$totmax;
289 # First, figure out max length of test names
290 my $failed_str = "Failed Test";
291 my $middle_str = " Status Wstat Total Fail Failed ";
292 my $list_str = "List of Failed";
293 my $max_namelen = length($failed_str);
295 foreach $script (keys %failedtests) {
297 (length $failedtests{$script}->{name} > $max_namelen) ?
298 length $failedtests{$script}->{name} : $max_namelen;
300 my $list_len = $columns - length($middle_str) - $max_namelen;
301 if ($list_len < length($list_str)) {
302 $list_len = length($list_str);
303 $max_namelen = $columns - length($middle_str) - $list_len;
304 if ($max_namelen < length($failed_str)) {
305 $max_namelen = length($failed_str);
306 $columns = $max_namelen + length($middle_str) + $list_len;
310 my $fmt_top = "format STDOUT_TOP =\n"
311 . sprintf("%-${max_namelen}s", $failed_str)
316 my $fmt = "format STDOUT =\n"
317 . "@" . "<" x ($max_namelen - 1)
318 . " @>> @>>>> @>>>> @>>> ^##.##% "
319 . "^" . "<" x ($list_len - 1) . "\n"
320 . '{ $curtest->{name}, $curtest->{estat},'
321 . ' $curtest->{wstat}, $curtest->{max},'
322 . ' $curtest->{failed}, $curtest->{percent},'
323 . ' $curtest->{canon}'
325 . "~~" . " " x ($columns - $list_len - 2) . "^"
326 . "<" x ($list_len - 1) . "\n"
327 . '$curtest->{canon}'
335 # Now write to formats
336 for $script (sort keys %failedtests) {
337 $curtest = $failedtests{$script};
341 $bonusmsg =~ s/^,\s*//;
342 print "$bonusmsg.\n" if $bonusmsg;
343 die "Failed $bad/$total test scripts, $pct% okay.$subpct\n";
346 printf("Files=%d, Tests=%d, %s\n", $files, $totmax, timestr($t_total, 'nop'));
348 return ($bad == 0 && $totmax) ;
351 my $tried_devel_corestack;
355 eval {require 'wait.ph'};
356 my $ret = defined &WCOREDUMP ? WCOREDUMP($st) : $st & 0200;
358 eval { require Devel::CoreStack; $have_devel_corestack++ }
359 unless $tried_devel_corestack++;
364 sub canonfailed ($@) {
365 my($max,$skipped,@failed) = @_;
367 @failed = sort {$a <=> $b} grep !$seen{$_}++, @failed;
368 my $failed = @failed;
372 my $last = $min = shift @failed;
375 for (@failed, $failed[-1]) { # don't forget the last one
376 if ($_ > $last+1 || $_ == $last) {
380 push @canon, "$min-$last";
387 push @result, "FAILED tests @canon\n";
390 push @result, "FAILED test $last\n";
394 push @result, "\tFailed $failed/$max tests, ";
395 push @result, sprintf("%.2f",100*(1-$failed/$max)), "% okay";
396 my $ender = 's' x ($skipped > 1);
397 my $good = $max - $failed - $skipped;
398 my $goodper = sprintf("%.2f",100*($good/$max));
399 push @result, " (-$skipped skipped test$ender: $good okay, $goodper%)" if $skipped;
401 my $txt = join "", @result;
410 Test::Harness - run perl standard test scripts with statistics
420 (By using the L<Test> module, you can write test scripts without
421 knowing the exact output this module expects. However, if you need to
422 know the specifics, read on!)
424 Perl test scripts print to standard output C<"ok N"> for each single
425 test, where C<N> is an increasing sequence of integers. The first line
426 output by a standard test script is C<"1..M"> with C<M> being the
427 number of tests that should be run within the test
428 script. Test::Harness::runtests(@tests) runs all the testscripts
429 named as arguments and checks standard output for the expected
432 After all tests have been performed, runtests() prints some
433 performance statistics that are computed by the Benchmark module.
435 =head2 The test script output
437 Any output from the testscript to standard error is ignored and
438 bypassed, thus will be seen by the user. Lines written to standard
439 output containing C</^(not\s+)?ok\b/> are interpreted as feedback for
440 runtests(). All other lines are discarded.
442 It is tolerated if the test numbers after C<ok> are omitted. In this
443 case Test::Harness maintains temporarily its own counter until the
444 script supplies test numbers again. So the following test script
458 Failed 3/6 tests, 50.00% okay
460 The global variable $Test::Harness::verbose is exportable and can be
461 used to let runtests() display the standard output of the script
462 without altering the behavior otherwise.
464 The global variable $Test::Harness::switches is exportable and can be
465 used to set perl command line options used for running the test
466 script(s). The default value is C<-w>.
468 If the standard output line contains substring C< # Skip> (with
469 variations in spacing and case) after C<ok> or C<ok NUMBER>, it is
470 counted as a skipped test. If the whole testscript succeeds, the
471 count of skipped tests is included in the generated output.
473 C<Test::Harness> reports the text after C< # Skip(whatever)> as a
474 reason for skipping. Similarly, one can include a similar explanation
475 in a C<1..0> line emitted if the test is skipped completely:
477 1..0 # Skipped: no leverage found
481 C<&runtests> is exported by Test::Harness per default.
487 =item C<All tests successful.\nFiles=%d, Tests=%d, %s>
489 If all tests are successful some statistics about the performance are
492 =item C<FAILED tests %s\n\tFailed %d/%d tests, %.2f%% okay.>
494 For any single script that has failing subtests statistics like the
497 =item C<Test returned status %d (wstat %d)>
499 Scripts that return a non-zero exit status, both C<$? E<gt>E<gt> 8> and C<$?> are
500 printed in a message similar to the above.
502 =item C<Failed 1 test, %.2f%% okay. %s>
504 =item C<Failed %d/%d tests, %.2f%% okay. %s>
506 If not all tests were successful, the script dies with one of the
513 Setting C<HARNESS_IGNORE_EXITCODE> makes harness ignore the exit status
516 Setting C<HARNESS_NOTTY> to a true value forces it to behave as though
517 STDOUT were not a console. You may need to set this if you don't want
518 harness to output more frequent progress messages using carriage returns.
519 Some consoles may not handle carriage returns properly (which results
520 in a somewhat messy output).
522 Setting C<HARNESS_COMPILE_TEST> to a true value will make harness attempt
523 to compile the test using C<perlcc> before running it.
525 If C<HARNESS_FILELEAK_IN_DIR> is set to the name of a directory, harness
526 will check after each test whether new files appeared in that directory,
529 LEAKED FILES: scr.tmp 0 my.db
531 If relative, directory name is with respect to the current directory at
532 the moment runtests() was called. Putting absolute path into
533 C<HARNESS_FILELEAK_IN_DIR> may give more predicatable results.
535 The value of C<HARNESS_PERL_SWITCHES> will be prepended to the
536 switches used to invoke perl on each test. For example, setting
537 C<HARNESS_PERL_SWITCHES> to "-W" will run all tests with all
540 If C<HARNESS_COLUMNS> is set, then this value will be used for the
541 width of the terminal. If it is not set then it will default to
542 C<COLUMNS>. If this is not set, it will default to 80. Note that users
543 of Bourne-sh based shells will need to C<export COLUMNS> for this
544 module to use that variable.
546 Harness sets C<HARNESS_ACTIVE> before executing the individual tests.
547 This allows the tests to determine if they are being executed through the
548 harness or by any other means.
552 L<Test> for writing test scripts and also L<Benchmark> for the
553 underlying timing routines.
557 Either Tim Bunce or Andreas Koenig, we don't know. What we know for
558 sure is, that it was inspired by Larry Wall's TEST script that came
559 with perl distributions for ages. Numerous anonymous contributors
560 exist. Current maintainer is Andreas Koenig.
564 Test::Harness uses $^X to determine the perl binary to run the tests
565 with. Test scripts running via the shebang (C<#!>) line may not be
566 portable because $^X is not consistent for shebang scripts across
567 platforms. This is no problem when Test::Harness is run with an
568 absolute path to the perl binary or when $^X can be found in the path.