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- package Test::Harness;
-
- use Exporter;
- use Benchmark;
- use Config;
- use FileHandle;
- use vars qw($VERSION $verbose $switches);
- require 5.002;
-
- $VERSION = "1.07";
-
- @ISA=('Exporter');
- @EXPORT= qw(&runtests);
- @EXPORT_OK= qw($verbose $switches);
-
-
- $verbose = 0;
- $switches = "-w";
-
- sub runtests {
- my(@tests) = @_;
- local($|) = 1;
- my($test,$te,$ok,$next,$max,$pct);
- my $totmax = 0;
- my $files = 0;
- my $bad = 0;
- my $good = 0;
- my $total = @tests;
- local($ENV{'PERL5LIB'}) = join($Config{path_sep}, @INC); # pass -I flags to children
-
- my $t_start = new Benchmark;
- while ($test = shift(@tests)) {
- $te = $test;
- chop($te);
- print "$te" . '.' x (20 - length($te));
- my $fh = new FileHandle;
- $fh->open("$^X $switches $test|") || (print "can't run. $!\n");
- $ok = $next = $max = 0;
- @failed = ();
- while (<$fh>) {
- if( $verbose ){
- print $_;
- }
- unless (/^\s*\#/) {
- if (/^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;
- push @failed, $this;
- } elsif (/^ok\s*(\d*)/) {
- $this = $1 if $1 > 0;
- $ok++;
- $totok++;
- }
- if ($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 "Aborting test: output counter mismatch [test $this answered when test $next expected]\n";
- last;
- }
- $next = $this + 1;
- }
- }
- }
- $fh->close; # must close to reap child resource values
- my $wstatus = $?;
- my $estatus = $wstatus >> 8;
- if ($ok == $max && $next == $max+1 && ! $estatus) {
- print "ok\n";
- $good++;
- } elsif ($max) {
- if ($next <= $max) {
- push @failed, $next..$max;
- }
- if (@failed) {
- print canonfailed($max,@failed);
- } else {
- print "Don't know which tests failed for some reason\n";
- }
- $bad++;
- } elsif ($next == 0) {
- print "FAILED before any test output arrived\n";
- $bad++;
- }
- if ($wstatus) {
- print "\tTest returned status $estatus (wstat $wstatus)\n";
- }
- }
- my $t_total = timediff(new Benchmark, $t_start);
-
- if ($bad == 0 && $totmax) {
- print "All tests successful.\n";
- } elsif ($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/$totmax;
- if ($bad == 1) {
- die "Failed 1 test script, $pct% okay.$subpct\n";
- } else {
- die "Failed $bad/$total test scripts, $pct% okay.$subpct\n";
- }
- }
- printf("Files=%d, Tests=%d, %s\n", $files, $totmax, timestr($t_total, 'nop'));
- }
-
- sub canonfailed ($@) {
- my($max,@failed) = @_;
- my %seen;
- @failed = sort {$a <=> $b} grep !$seen{$_}++, @failed;
- my $failed = @failed;
- my @result = ();
- my @canon = ();
- my $min;
- my $last = $min = shift @failed;
- 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";
- } else {
- push @result, "FAILED test $last\n";
- }
-
- push @result, "\tFailed $failed/$max tests, ";
- push @result, sprintf("%.2f",100*(1-$failed/$max)), "% okay\n";
- join "", @result;
- }
-
- 1;
- __END__
-
- =head1 NAME
-
- Test::Harness - run perl standard test scripts with statistics
-
- =head1 SYNOPSIS
-
- use Test::Harness;
-
- runtests(@tests);
-
- =head1 DESCRIPTION
-
- Perl test scripts print to standard output C<"ok N"> for each single
- test, where C<N> is an increasing sequence of integers. The first line
- output by a standard test scxript is C<"1..M"> with C<M> being the
- number of tests that should be run within the test
- script. Test::Harness::runscripts(@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, runscripts() 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 that look like perl comments (start with C</^\s*\#/>) are
- discarded. Lines containing C</^(not\s+)?ok\b/> are interpreted as
- feedback for runtests().
-
- It is tolerated if the test numbers after C<ok> 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 <<END;
- 1..6
- not ok
- ok
- not ok
- ok
- ok
- END
-
- will generate
-
- FAILED tests 1, 3, 6
- Failed 3/6 tests, 50.00% okay
-
- The global variable $Test::Harness::verbose is exportable and can be
- used to let runscripts() display the standard output of the script
- without altering the behavior otherwise.
-
- =head1 EXPORT
-
- C<&runscripts> is exported by Test::Harness per default.
-
- =head1 DIAGNOSTICS
-
- =over 4
-
- =item C<All tests successful.\nFiles=%d, Tests=%d, %s>
-
- If all tests are successful some statistics about the performance are
- printed.
-
- =item C<FAILED tests %s\n\tFailed %d/%d tests, %.2f%% okay.>
-
- For any single script that has failing subtests statistics like the
- above are printed.
-
- =item C<Test returned status %d (wstat %d)>
-
- Scripts that return a non-zero exit status, both $?>>8 and $? are
- printed in a message similar to the above.
-
- =item C<Failed 1 test, %.2f%% okay. %s>
-
- =item C<Failed %d/%d tests, %.2f%% okay. %s>
-
- If not all tests were successful, the script dies with one of the
- above messages.
-
- =back
-
- =head1 SEE ALSO
-
- See L<Benchmark> 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. 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
-