package Test::Harness; BEGIN {require 5.002;} use Exporter; use Benchmark; use Config; use FileHandle; use strict; use vars qw($VERSION $verbose $switches $have_devel_corestack $curtest @ISA @EXPORT @EXPORT_OK); $have_devel_corestack = 0; $VERSION = "1.1602"; # Some experimental versions of OS/2 build have broken $? my $ignore_exitcode = $ENV{HARNESS_IGNORE_EXITCODE}; my $files_in_dir = $ENV{HARNESS_FILELEAK_IN_DIR}; my $tests_skipped = 0; my $subtests_skipped = 0; @ISA=('Exporter'); @EXPORT= qw(&runtests); @EXPORT_OK= qw($verbose $switches); format STDOUT_TOP = Failed Test Status Wstat Total Fail Failed List of failed ------------------------------------------------------------------------------- . format STDOUT = @<<<<<<<<<<<<<< @>> @>>>> @>>>> @>>> ^##.##% ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< { $curtest->{name}, $curtest->{estat}, $curtest->{wstat}, $curtest->{max}, $curtest->{failed}, $curtest->{percent}, $curtest->{canon} } ~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< $curtest->{canon} . $verbose = 0; $switches = "-w"; sub globdir { opendir DIRH, shift; my @f = readdir DIRH; closedir DIRH; @f } sub runtests { my(@tests) = @_; local($|) = 1; my($test,$te,$ok,$next,$max,$pct,$totok,$totbonus,@failed,%failedtests); my $totmax = 0; my $files = 0; my $bad = 0; my $good = 0; my $total = @tests; # pass -I flags to children my $old5lib = $ENV{PERL5LIB}; local($ENV{'PERL5LIB'}) = join($Config{path_sep}, @INC); if ($^O eq 'VMS') { $switches =~ s/-(\S*[A-Z]\S*)/"-$1"/g } my @dir_files = globdir $files_in_dir if defined $files_in_dir; my $t_start = new Benchmark; while ($test = shift(@tests)) { $te = $test; chop($te); if ($^O eq 'VMS') { $te =~ s/^.*\.t\./[.t./; } print "$te" . '.' x (20 - length($te)); my $fh = new FileHandle; $fh->open($test) or print "can't open $test. $!\n"; my $first = <$fh>; my $s = $switches; $s .= q[ "-T"] if $first =~ /^#!.*\bperl.*-\w*T/; $fh->close or print "can't close $test. $!\n"; my $cmd = ($ENV{'COMPILE_TEST'})? "./perl -I../lib ../utils/perlcc $test -run -verbose dcf -log ./compilelog |" : "$^X $s $test|"; $cmd = "MCR $cmd" if $^O eq 'VMS'; $fh->open($cmd) or print "can't run $test. $!\n"; $ok = $next = $max = 0; @failed = (); my %todo = (); my $bonus = 0; my $skipped = 0; while (<$fh>) { if( $verbose ){ print $_; } if (/^1\.\.([0-9]+) todo([\d\s]+)\;/) { $max = $1; for (split(/\s+/, $2)) { $todo{$_} = 1; } $totmax += $max; $files++; $next = 1; } elsif (/^1\.\.([0-9]+)/) { $max = $1; $totmax += $max; $files++; $next = 1; } elsif ($max && /^(not\s+)?ok\b/) { my $this = $next; if (/^not ok\s*(\d*)/){ $this = $1 if $1 > 0; if (!$todo{$this}) { push @failed, $this; } else { $ok++; $totok++; } } elsif (/^ok\s*(\d*)(\s*\#\s*[Ss]kip)?/) { $this = $1 if $1 > 0; $ok++; $totok++; $skipped++ if defined $2; $bonus++, $totbonus++ if $todo{$this}; } if ($this > $next) { # warn "Test output counter mismatch [test $this]\n"; # no need to warn probably push @failed, $next..$this-1; } elsif ($this < $next) { #we have seen more "ok" lines than the number suggests warn "Confused test output: test $this answered after test ", $next-1, "\n"; $next = $this; } $next = $this + 1; } } $fh->close; # must close to reap child resource values my $wstatus = $ignore_exitcode ? 0 : $?; # Can trust $? ? my $estatus; $estatus = ($^O eq 'VMS' ? eval 'use vmsish "status"; $estatus = $?' : $wstatus >> 8); if ($wstatus) { my ($failed, $canon, $percent) = ('??', '??'); printf "dubious\n\tTest returned status $estatus (wstat %d, 0x%x)\n", $wstatus,$wstatus; print "\t\t(VMS status is $estatus)\n" if $^O eq 'VMS'; if (corestatus($wstatus)) { # until we have a wait module if ($have_devel_corestack) { Devel::CoreStack::stack($^X); } else { print "\ttest program seems to have generated a core\n"; } } $bad++; if ($max) { if ($next == $max + 1 and not @failed) { print "\tafter all the subtests completed successfully\n"; $percent = 0; $failed = 0; # But we do not set $canon! } else { push @failed, $next..$max; $failed = @failed; (my $txt, $canon) = canonfailed($max,$skipped,@failed); $percent = 100*(scalar @failed)/$max; print "DIED. ",$txt; } } $failedtests{$test} = { canon => $canon, max => $max || '??', failed => $failed, name => $test, percent => $percent, estat => $estatus, wstat => $wstatus, }; } elsif ($ok == $max && $next == $max+1) { if ($max and $skipped + $bonus) { my @msg; push(@msg, "$skipped/$max subtest".($skipped>1?'s':'')." skipped") if $skipped; push(@msg, "$bonus subtest".($bonus>1?'s':''). " unexpectedly succeeded") if $bonus; print "ok, ".join(', ', @msg)."\n"; } elsif ($max) { print "ok\n"; } else { print "skipping test on this platform\n"; $tests_skipped++; } $good++; } elsif ($max) { if ($next <= $max) { push @failed, $next..$max; } if (@failed) { my ($txt, $canon) = canonfailed($max,$skipped,@failed); print $txt; $failedtests{$test} = { canon => $canon, max => $max, failed => scalar @failed, name => $test, percent => 100*(scalar @failed)/$max, estat => '', wstat => '', }; } else { print "Don't know which tests failed: got $ok ok, expected $max\n"; $failedtests{$test} = { canon => '??', max => $max, failed => '??', name => $test, percent => undef, estat => '', wstat => '', }; } $bad++; } elsif ($next == 0) { print "FAILED before any test output arrived\n"; $bad++; $failedtests{$test} = { canon => '??', max => '??', failed => '??', name => $test, percent => undef, estat => '', wstat => '', }; } $subtests_skipped += $skipped; if (defined $files_in_dir) { my @new_dir_files = globdir $files_in_dir; if (@new_dir_files != @dir_files) { my %f; @f{@new_dir_files} = (1) x @new_dir_files; delete @f{@dir_files}; my @f = sort keys %f; print "LEAKED FILES: @f\n"; @dir_files = @new_dir_files; } } } my $t_total = timediff(new Benchmark, $t_start); if ($^O eq 'VMS') { if (defined $old5lib) { $ENV{PERL5LIB} = $old5lib; } else { delete $ENV{PERL5LIB}; } } my $bonusmsg = ''; $bonusmsg = (" ($totbonus subtest".($totbonus>1?'s':''). " UNEXPECTEDLY SUCCEEDED)") if $totbonus; if ($tests_skipped) { $bonusmsg .= ", $tests_skipped test" . ($tests_skipped != 1 ? 's' : '') . ' skipped'; } if ($subtests_skipped) { $bonusmsg .= ($tests_skipped ? ', plus ' : ', '). "$subtests_skipped subtest" . ($subtests_skipped != 1 ? 's' : '') . " skipped"; } if ($bad == 0 && $totmax) { print "All tests successful$bonusmsg.\n"; } elsif ($total==0){ die "FAILED--no tests were run for some reason.\n"; } elsif ($totmax==0) { my $blurb = $total==1 ? "script" : "scripts"; die "FAILED--$total test $blurb could be run, alas--no output ever seen\n"; } else { $pct = sprintf("%.2f", $good / $total * 100); my $subpct = sprintf " %d/%d subtests failed, %.2f%% okay.", $totmax - $totok, $totmax, 100*$totok/$totmax; my $script; for $script (sort keys %failedtests) { $curtest = $failedtests{$script}; write; } if ($bad) { $bonusmsg =~ s/^,\s*//; print "$bonusmsg.\n" if $bonusmsg; die "Failed $bad/$total test scripts, $pct% okay.$subpct\n"; } } printf("Files=%d, Tests=%d, %s\n", $files, $totmax, timestr($t_total, 'nop')); return ($bad == 0 && $totmax) ; } my $tried_devel_corestack; sub corestatus { my($st) = @_; my($ret); eval {require 'wait.ph'}; if ($@) { SWITCH: { $ret = ($st & 0200); # Tim says, this is for 90% } } else { $ret = WCOREDUMP($st); } eval { require Devel::CoreStack; $have_devel_corestack++ } unless $tried_devel_corestack++; $ret; } sub canonfailed ($@) { my($max,$skipped,@failed) = @_; my %seen; @failed = sort {$a <=> $b} grep !$seen{$_}++, @failed; my $failed = @failed; my @result = (); my @canon = (); my $min; my $last = $min = shift @failed; my $canon; if (@failed) { for (@failed, $failed[-1]) { # don't forget the last one if ($_ > $last+1 || $_ == $last) { if ($min == $last) { push @canon, $last; } else { push @canon, "$min-$last"; } $min = $_; } $last = $_; } local $" = ", "; push @result, "FAILED tests @canon\n"; $canon = "@canon"; } else { push @result, "FAILED test $last\n"; $canon = $last; } push @result, "\tFailed $failed/$max tests, "; push @result, sprintf("%.2f",100*(1-$failed/$max)), "% okay"; my $ender = 's' x ($skipped > 1); my $good = $max - $failed - $skipped; my $goodper = sprintf("%.2f",100*($good/$max)); push @result, " (-$skipped skipped test$ender: $good okay, $goodper%)" if $skipped; push @result, "\n"; my $txt = join "", @result; ($txt, $canon); } 1; __END__ =head1 NAME Test::Harness - run perl standard test scripts with statistics =head1 SYNOPSIS use Test::Harness; runtests(@tests); =head1 DESCRIPTION (By using the L module, you can write test scripts without knowing the exact output this module expects. However, if you need to know the specifics, read on!) Perl test scripts print to standard output C<"ok N"> for each single test, where C is an increasing sequence of integers. The first line output by a standard test script is C<"1..M"> with C being the number of tests that should be run within the test script. Test::Harness::runtests(@tests) runs all the testscripts named as arguments and checks standard output for the expected C<"ok N"> strings. After all tests have been performed, runtests() prints some performance statistics that are computed by the Benchmark module. =head2 The test script output Any output from the testscript to standard error is ignored and bypassed, thus will be seen by the user. Lines written to standard output containing C are interpreted as feedback for runtests(). All other lines are discarded. It is tolerated if the test numbers after C are omitted. In this case Test::Harness maintains temporarily its own counter until the script supplies test numbers again. So the following test script print <. If the standard output line contains substring C< # Skip> (with variations in spacing and case) after C or C, it is counted as a skipped test. If the whole testscript succeeds, the count of skipped tests is included in the generated output. =head1 EXPORT C<&runtests> is exported by Test::Harness per default. =head1 DIAGNOSTICS =over 4 =item C If all tests are successful some statistics about the performance are printed. =item C For any single script that has failing subtests statistics like the above are printed. =item C Scripts that return a non-zero exit status, both C<$? EE 8> and C<$?> are printed in a message similar to the above. =item C =item C If not all tests were successful, the script dies with one of the above messages. =back =head1 ENVIRONMENT Setting C makes harness ignore the exit status of child processes. If C is set to the name of a directory, harness will check after each test whether new files appeared in that directory, and report them as LEAKED FILES: scr.tmp 0 my.db If relative, directory name is with respect to the current directory at the moment runtests() was called. Putting absolute path into C may give more predicatable results. =head1 SEE ALSO L for writing test scripts and also L for the underlying timing routines. =head1 AUTHORS Either Tim Bunce or Andreas Koenig, we don't know. What we know for sure is, that it was inspired by Larry Wall's TEST script that came with perl distributions for ages. Numerous anonymous contributors exist. Current maintainer is Andreas Koenig. =head1 BUGS Test::Harness uses $^X to determine the perl binary to run the tests with. Test scripts running via the shebang (C<#!>) line may not be portable because $^X is not consistent for shebang scripts across platforms. This is no problem when Test::Harness is run with an absolute path to the perl binary or when $^X can be found in the path. =cut