10 use vars qw($VERSION $verbose $switches $have_devel_corestack $curtest
11 @ISA @EXPORT @EXPORT_OK);
12 $have_devel_corestack = 0;
17 @EXPORT= qw(&runtests);
18 @EXPORT_OK= qw($verbose $switches);
21 Failed Test Status Wstat Total Fail Failed List of failed
22 ------------------------------------------------------------------------------
26 @<<<<<<<<<<<<<< @>> @>>>> @>>>> @>>> ^##.##% @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
44 my($test,$te,$ok,$next,$max,$pct,$totok,@failed,%failedtests);
51 # pass -I flags to children
52 my $old5lib = $ENV{PERL5LIB};
53 local($ENV{'PERL5LIB'}) = join($Config{path_sep}, @INC);
55 if ($^O eq 'VMS') { $switches =~ s/-(\S*[A-Z]\S*)/"-$1"/g }
57 my $t_start = new Benchmark;
58 while ($test = shift(@tests)) {
61 print "$te" . '.' x (20 - length($te));
62 my $fh = new FileHandle;
63 my $cmd = "$^X $switches $test|";
64 $cmd = "MCR $cmd" if $^O eq 'VMS';
65 $fh->open($cmd) or print "can't run. $!\n";
66 $ok = $next = $max = 0;
72 if (/^1\.\.([0-9]+)/) {
77 } elsif ($max && /^(not\s+)?ok\b/) {
79 if (/^not ok\s*(\d*)/){
82 } elsif (/^ok\s*(\d*)/) {
88 # warn "Test output counter mismatch [test $this]\n";
89 # no need to warn probably
90 push @failed, $next..$this-1;
91 } elsif ($this < $next) {
92 #we have seen more "ok" lines than the number suggests
93 warn "Confused test output: test $this answered after test ", $next-1, "\n";
99 $fh->close; # must close to reap child resource values
101 my $estatus = $^O eq 'VMS' ? $wstatus : $wstatus >> 8;
102 if ($^O eq 'VMS' ? !($wstatus & 1) : $wstatus) {
103 print "dubious\n\tTest returned status $estatus (wstat $wstatus)\n";
104 if (corestatus($wstatus)) { # until we have a wait module
105 if ($have_devel_corestack) {
106 Devel::CoreStack::stack($^X);
108 print "\ttest program seems to have generated a core\n";
112 $failedtests{$test} = { canon => '??', max => $max || '??',
114 name => $test, percent => undef,
115 estat => $estatus, wstat => $wstatus,
117 } elsif ($ok == $max && $next == $max+1) {
121 print "skipping test on this platform\n";
126 push @failed, $next..$max;
129 my ($txt, $canon) = canonfailed($max,@failed);
131 $failedtests{$test} = { canon => $canon, max => $max,
132 failed => scalar @failed,
133 name => $test, percent => 100*(scalar @failed)/$max,
134 estat => '', wstat => '',
137 print "Don't know which tests failed: got $ok ok, expected $max\n";
138 $failedtests{$test} = { canon => '??', max => $max,
140 name => $test, percent => undef,
141 estat => '', wstat => '',
145 } elsif ($next == 0) {
146 print "FAILED before any test output arrived\n";
148 $failedtests{$test} = { canon => '??', max => '??',
150 name => $test, percent => undef,
151 estat => '', wstat => '',
155 my $t_total = timediff(new Benchmark, $t_start);
158 if (defined $old5lib) {
159 $ENV{PERL5LIB} = $old5lib;
161 delete $ENV{PERL5LIB};
164 if ($bad == 0 && $totmax) {
165 print "All tests successful.\n";
167 die "FAILED--no tests were run for some reason.\n";
168 } elsif ($totmax==0) {
169 my $blurb = $total==1 ? "script" : "scripts";
170 die "FAILED--$total test $blurb could be run, alas--no output ever seen\n";
172 $pct = sprintf("%.2f", $good / $total * 100);
173 my $subpct = sprintf " %d/%d subtests failed, %.2f%% okay.",
174 $totmax - $totok, $totmax, 100*$totok/$totmax;
176 for $script (sort keys %failedtests) {
177 $curtest = $failedtests{$script};
181 die "Failed $bad/$total test scripts, $pct% okay.$subpct\n";
184 printf("Files=%d, Tests=%d, %s\n", $files, $totmax, timestr($t_total, 'nop'));
186 return ($bad == 0 && $totmax) ;
193 eval {require 'wait.ph'};
196 $ret = ($st & 0200); # Tim says, this is for 90%
199 $ret = WCOREDUMP($st);
202 eval {require Devel::CoreStack};
203 $have_devel_corestack++ unless $@;
208 sub canonfailed ($@) {
209 my($max,@failed) = @_;
211 @failed = sort {$a <=> $b} grep !$seen{$_}++, @failed;
212 my $failed = @failed;
216 my $last = $min = shift @failed;
219 for (@failed, $failed[-1]) { # don't forget the last one
220 if ($_ > $last+1 || $_ == $last) {
224 push @canon, "$min-$last";
231 push @result, "FAILED tests @canon\n";
234 push @result, "FAILED test $last\n";
238 push @result, "\tFailed $failed/$max tests, ";
239 push @result, sprintf("%.2f",100*(1-$failed/$max)), "% okay\n";
240 my $txt = join "", @result;
249 Test::Harness - run perl standard test scripts with statistics
259 Perl test scripts print to standard output C<"ok N"> for each single
260 test, where C<N> is an increasing sequence of integers. The first line
261 output by a standard test script is C<"1..M"> with C<M> being the
262 number of tests that should be run within the test
263 script. Test::Harness::runtests(@tests) runs all the testscripts
264 named as arguments and checks standard output for the expected
267 After all tests have been performed, runtests() prints some
268 performance statistics that are computed by the Benchmark module.
270 =head2 The test script output
272 Any output from the testscript to standard error is ignored and
273 bypassed, thus will be seen by the user. Lines written to standard
274 output containing C</^(not\s+)?ok\b/> are interpreted as feedback for
275 runtests(). All other lines are discarded.
277 It is tolerated if the test numbers after C<ok> are omitted. In this
278 case Test::Harness maintains temporarily its own counter until the
279 script supplies test numbers again. So the following test script
293 Failed 3/6 tests, 50.00% okay
295 The global variable $Test::Harness::verbose is exportable and can be
296 used to let runtests() display the standard output of the script
297 without altering the behavior otherwise.
301 C<&runtests> is exported by Test::Harness per default.
307 =item C<All tests successful.\nFiles=%d, Tests=%d, %s>
309 If all tests are successful some statistics about the performance are
312 =item C<FAILED tests %s\n\tFailed %d/%d tests, %.2f%% okay.>
314 For any single script that has failing subtests statistics like the
317 =item C<Test returned status %d (wstat %d)>
319 Scripts that return a non-zero exit status, both C<$? E<gt>E<gt> 8> and C<$?> are
320 printed in a message similar to the above.
322 =item C<Failed 1 test, %.2f%% okay. %s>
324 =item C<Failed %d/%d tests, %.2f%% okay. %s>
326 If not all tests were successful, the script dies with one of the
333 See L<Benchmark> for the underlying timing routines.
337 Either Tim Bunce or Andreas Koenig, we don't know. What we know for
338 sure is, that it was inspired by Larry Wall's TEST script that came
339 with perl distributions for ages. Numerous anonymous contributors
340 exist. Current maintainer is Andreas Koenig.
344 Test::Harness uses $^X to determine the perl binary to run the tests
345 with. Test scripts running via the shebang (C<#!>) line may not be
346 portable because $^X is not consistent for shebang scripts across
347 platforms. This is no problem when Test::Harness is run with an
348 absolute path to the perl binary or when $^X can be found in the path.