10 our($VERSION, $verbose, $switches, $have_devel_corestack, $curtest,
11 @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 $switches);
31 Failed Test Status Wstat Total Fail Failed List of failed
32 -------------------------------------------------------------------------------
36 @<<<<<<<<<<<<<< @>> @>>>> @>>>> @>>> ^##.##% ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
45 ~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
53 sub globdir { opendir DIRH, shift; my @f = readdir DIRH; closedir DIRH; @f }
58 my($test,$te,$ok,$next,$max,$pct,$totok,$totbonus,@failed,%failedtests);
65 # pass -I flags to children
66 my $old5lib = $ENV{PERL5LIB};
68 # VMS has a 255-byte limit on the length of %ENV entries, so
69 # toss the ones that involve perl_root, the install location
73 $new5lib = join($Config{path_sep}, grep {!/perl_root/i;} @INC);
74 $switches =~ s/-(\S*[A-Z]\S*)/"-$1"/g;
77 $new5lib = join($Config{path_sep}, @INC);
80 local($ENV{'PERL5LIB'}) = $new5lib;
82 my @dir_files = globdir $files_in_dir if defined $files_in_dir;
83 my $t_start = new Benchmark;
84 while ($test = shift(@tests)) {
87 if ($^O eq 'VMS') { $te =~ s/^.*\.t\./[.t./s; }
88 my $blank = (' ' x 77);
89 my $leader = "$te" . '.' x (20 - length($te));
91 $ml = "\r$blank\r$leader"
92 if -t STDOUT and not $ENV{HARNESS_NOTTY} and not $verbose;
94 my $fh = new FileHandle;
95 $fh->open($test) or print "can't open $test. $!\n";
98 $s .= " $ENV{'HARNESS_PERL_SWITCHES'}"
99 if exists $ENV{'HARNESS_PERL_SWITCHES'};
100 $s .= join " ", q[ "-T"], map {qq["-I$_"]} @INC
101 if $first =~ /^#!.*\bperl.*-\w*T/;
102 $fh->close or print "can't close $test. $!\n";
103 my $cmd = ($ENV{'HARNESS_COMPILE_TEST'})
104 ? "./perl -I../lib ../utils/perlcc $test "
105 . "-run 2>> ./compilelog |"
107 $cmd = "MCR $cmd" if $^O eq 'VMS';
108 $fh->open($cmd) or print "can't run $test. $!\n";
109 $ok = $next = $max = 0;
119 if (/^1\.\.([0-9]+) todo([\d\s]+)\;/) {
121 for (split(/\s+/, $2)) { $todo{$_} = 1; }
125 } elsif (/^1\.\.([0-9]+)(\s*\#\s*[Ss]kip\S*(?>\s+)(.+))?/) {
130 $skip_reason = $3 if not $max and defined $3;
131 } elsif ($max && /^(not\s+)?ok\b/) {
133 if (/^not ok\s*(\d*)/){
134 $this = $1 if $1 > 0;
135 print "${ml}NOK $this" if $ml;
142 } elsif (/^ok\s*(\d*)(\s*\#\s*[Ss]kip\S*(?:(?>\s+)(.+))?)?/) {
143 $this = $1 if $1 > 0;
144 print "${ml}ok $this/$max" if $ml;
147 $skipped++ if defined $2;
149 $reason = 'unknown reason' if defined $2;
150 $reason = $3 if defined $3;
151 if (defined $reason and defined $skip_reason) {
152 # print "was: '$skip_reason' new '$reason'\n";
153 $skip_reason = 'various reasons'
154 if $skip_reason ne $reason;
155 } elsif (defined $reason) {
156 $skip_reason = $reason;
158 $bonus++, $totbonus++ if $todo{$this};
161 # warn "Test output counter mismatch [test $this]\n";
162 # no need to warn probably
163 push @failed, $next..$this-1;
164 } elsif ($this < $next) {
165 #we have seen more "ok" lines than the number suggests
166 warn "Confused test output: test $this answered after test ", $next-1, "\n";
172 $fh->close; # must close to reap child resource values
173 my $wstatus = $ignore_exitcode ? 0 : $?; # Can trust $? ?
175 $estatus = ($^O eq 'VMS'
176 ? eval 'use vmsish "status"; $estatus = $?'
179 my ($failed, $canon, $percent) = ('??', '??');
180 printf "${ml}dubious\n\tTest returned status $estatus (wstat %d, 0x%x)\n",
182 print "\t\t(VMS status is $estatus)\n" if $^O eq 'VMS';
183 if (corestatus($wstatus)) { # until we have a wait module
184 if ($have_devel_corestack) {
185 Devel::CoreStack::stack($^X);
187 print "\ttest program seems to have generated a core\n";
192 if ($next == $max + 1 and not @failed) {
193 print "\tafter all the subtests completed successfully\n";
195 $failed = 0; # But we do not set $canon!
197 push @failed, $next..$max;
199 (my $txt, $canon) = canonfailed($max,$skipped,@failed);
200 $percent = 100*(scalar @failed)/$max;
204 $failedtests{$test} = { canon => $canon, max => $max || '??',
206 name => $test, percent => $percent,
207 estat => $estatus, wstat => $wstatus,
209 } elsif ($ok == $max && $next == $max+1) {
210 if ($max and $skipped + $bonus) {
212 push(@msg, "$skipped/$max skipped: $skip_reason")
214 push(@msg, "$bonus/$max unexpectedly succeeded")
216 print "${ml}ok, ".join(', ', @msg)."\n";
219 } elsif (defined $skip_reason) {
220 print "skipped: $skip_reason\n";
223 print "skipped test on this platform\n";
229 push @failed, $next..$max;
232 my ($txt, $canon) = canonfailed($max,$skipped,@failed);
234 $failedtests{$test} = { canon => $canon, max => $max,
235 failed => scalar @failed,
236 name => $test, percent => 100*(scalar @failed)/$max,
237 estat => '', wstat => '',
240 print "Don't know which tests failed: got $ok ok, expected $max\n";
241 $failedtests{$test} = { canon => '??', max => $max,
243 name => $test, percent => undef,
244 estat => '', wstat => '',
248 } elsif ($next == 0) {
249 print "FAILED before any test output arrived\n";
251 $failedtests{$test} = { canon => '??', max => '??',
253 name => $test, percent => undef,
254 estat => '', wstat => '',
257 $subtests_skipped += $skipped;
258 if (defined $files_in_dir) {
259 my @new_dir_files = globdir $files_in_dir;
260 if (@new_dir_files != @dir_files) {
262 @f{@new_dir_files} = (1) x @new_dir_files;
263 delete @f{@dir_files};
264 my @f = sort keys %f;
265 print "LEAKED FILES: @f\n";
266 @dir_files = @new_dir_files;
270 my $t_total = timediff(new Benchmark, $t_start);
273 if (defined $old5lib) {
274 $ENV{PERL5LIB} = $old5lib;
276 delete $ENV{PERL5LIB};
280 $bonusmsg = (" ($totbonus subtest".($totbonus>1?'s':'').
281 " UNEXPECTEDLY SUCCEEDED)")
283 if ($tests_skipped) {
284 $bonusmsg .= ", $tests_skipped test" . ($tests_skipped != 1 ? 's' : '');
285 if ($subtests_skipped) {
286 $bonusmsg .= " and $subtests_skipped subtest"
287 . ($subtests_skipped != 1 ? 's' : '');
289 $bonusmsg .= ' skipped';
291 elsif ($subtests_skipped) {
292 $bonusmsg .= ", $subtests_skipped subtest"
293 . ($subtests_skipped != 1 ? 's' : '')
296 if ($bad == 0 && $totmax) {
297 print "All tests successful$bonusmsg.\n";
299 die "FAILED--no tests were run for some reason.\n";
300 } elsif ($totmax==0) {
301 my $blurb = $total==1 ? "script" : "scripts";
302 die "FAILED--$total test $blurb could be run, alas--no output ever seen\n";
304 $pct = sprintf("%.2f", $good / $total * 100);
305 my $subpct = sprintf " %d/%d subtests failed, %.2f%% okay.",
306 $totmax - $totok, $totmax, 100*$totok/$totmax;
308 for $script (sort keys %failedtests) {
309 $curtest = $failedtests{$script};
313 $bonusmsg =~ s/^,\s*//;
314 print "$bonusmsg.\n" if $bonusmsg;
315 die "Failed $bad/$total test scripts, $pct% okay.$subpct\n";
318 printf("Files=%d, Tests=%d, %s\n", $files, $totmax, timestr($t_total, 'nop'));
320 return ($bad == 0 && $totmax) ;
323 my $tried_devel_corestack;
327 eval {require 'wait.ph'};
328 my $ret = defined &WCOREDUMP ? WCOREDUMP($st) : $st & 0200;
330 eval { require Devel::CoreStack; $have_devel_corestack++ }
331 unless $tried_devel_corestack++;
336 sub canonfailed ($@) {
337 my($max,$skipped,@failed) = @_;
339 @failed = sort {$a <=> $b} grep !$seen{$_}++, @failed;
340 my $failed = @failed;
344 my $last = $min = shift @failed;
347 for (@failed, $failed[-1]) { # don't forget the last one
348 if ($_ > $last+1 || $_ == $last) {
352 push @canon, "$min-$last";
359 push @result, "FAILED tests @canon\n";
362 push @result, "FAILED test $last\n";
366 push @result, "\tFailed $failed/$max tests, ";
367 push @result, sprintf("%.2f",100*(1-$failed/$max)), "% okay";
368 my $ender = 's' x ($skipped > 1);
369 my $good = $max - $failed - $skipped;
370 my $goodper = sprintf("%.2f",100*($good/$max));
371 push @result, " (-$skipped skipped test$ender: $good okay, $goodper%)" if $skipped;
373 my $txt = join "", @result;
382 Test::Harness - run perl standard test scripts with statistics
392 (By using the L<Test> module, you can write test scripts without
393 knowing the exact output this module expects. However, if you need to
394 know the specifics, read on!)
396 Perl test scripts print to standard output C<"ok N"> for each single
397 test, where C<N> is an increasing sequence of integers. The first line
398 output by a standard test script is C<"1..M"> with C<M> being the
399 number of tests that should be run within the test
400 script. Test::Harness::runtests(@tests) runs all the testscripts
401 named as arguments and checks standard output for the expected
404 After all tests have been performed, runtests() prints some
405 performance statistics that are computed by the Benchmark module.
407 =head2 The test script output
409 Any output from the testscript to standard error is ignored and
410 bypassed, thus will be seen by the user. Lines written to standard
411 output containing C</^(not\s+)?ok\b/> are interpreted as feedback for
412 runtests(). All other lines are discarded.
414 It is tolerated if the test numbers after C<ok> are omitted. In this
415 case Test::Harness maintains temporarily its own counter until the
416 script supplies test numbers again. So the following test script
430 Failed 3/6 tests, 50.00% okay
432 The global variable $Test::Harness::verbose is exportable and can be
433 used to let runtests() display the standard output of the script
434 without altering the behavior otherwise.
436 The global variable $Test::Harness::switches is exportable and can be
437 used to set perl command line options used for running the test
438 script(s). The default value is C<-w>.
440 If the standard output line contains substring C< # Skip> (with
441 variations in spacing and case) after C<ok> or C<ok NUMBER>, it is
442 counted as a skipped test. If the whole testscript succeeds, the
443 count of skipped tests is included in the generated output.
445 C<Test::Harness> reports the text after C< # Skip(whatever)> as a
446 reason for skipping. Similarly, one can include a similar explanation
447 in a C<1..0> line emitted if the test is skipped completely:
449 1..0 # Skipped: no leverage found
453 C<&runtests> is exported by Test::Harness per default.
459 =item C<All tests successful.\nFiles=%d, Tests=%d, %s>
461 If all tests are successful some statistics about the performance are
464 =item C<FAILED tests %s\n\tFailed %d/%d tests, %.2f%% okay.>
466 For any single script that has failing subtests statistics like the
469 =item C<Test returned status %d (wstat %d)>
471 Scripts that return a non-zero exit status, both C<$? E<gt>E<gt> 8> and C<$?> are
472 printed in a message similar to the above.
474 =item C<Failed 1 test, %.2f%% okay. %s>
476 =item C<Failed %d/%d tests, %.2f%% okay. %s>
478 If not all tests were successful, the script dies with one of the
485 Setting C<HARNESS_IGNORE_EXITCODE> makes harness ignore the exit status
488 Setting C<HARNESS_NOTTY> to a true value forces it to behave as though
489 STDOUT were not a console. You may need to set this if you don't want
490 harness to output more frequent progress messages using carriage returns.
491 Some consoles may not handle carriage returns properly (which results
492 in a somewhat messy output).
494 Setting C<HARNESS_COMPILE_TEST> to a true value will make harness attempt
495 to compile the test using C<perlcc> before running it.
497 If C<HARNESS_FILELEAK_IN_DIR> is set to the name of a directory, harness
498 will check after each test whether new files appeared in that directory,
501 LEAKED FILES: scr.tmp 0 my.db
503 If relative, directory name is with respect to the current directory at
504 the moment runtests() was called. Putting absolute path into
505 C<HARNESS_FILELEAK_IN_DIR> may give more predicatable results.
507 The value of C<HARNESS_PERL_SWITCHES> will be prepended to the
508 switches used to invoke perl on each test. For example, setting
509 C<HARNESS_PERL_SWITCHES> to "-W" will run all tests with all
512 Harness sets C<HARNESS_ACTIVE> before executing the individual tests.
513 This allows the tests to determine if they are being executed through the
514 harness or by any other means.
518 L<Test> for writing test scripts and also L<Benchmark> for the
519 underlying timing routines.
523 Either Tim Bunce or Andreas Koenig, we don't know. What we know for
524 sure is, that it was inspired by Larry Wall's TEST script that came
525 with perl distributions for ages. Numerous anonymous contributors
526 exist. Current maintainer is Andreas Koenig.
530 Test::Harness uses $^X to determine the perl binary to run the tests
531 with. Test scripts running via the shebang (C<#!>) line may not be
532 portable because $^X is not consistent for shebang scripts across
533 platforms. This is no problem when Test::Harness is run with an
534 absolute path to the perl binary or when $^X can be found in the path.