Document that tests functions return the value of the test

[perl/modules/Test-Leaner.git] / lib / Test / Leaner.pm

diff --git a/lib/Test/Leaner.pm b/lib/Test/Leaner.pm
index 336bf31c3d56ca17a9712de6074b411adfc490a1..c1b8df4b712334a900802ec34b9260407b905f2e 100644 (file)
--- a/lib/Test/Leaner.pm
+++ b/lib/Test/Leaner.pm
@@ -4,8 +4,35 @@ use 5.006;
 use strict;
 use warnings;
 
+=head1 NAME
+
+Test::Leaner - A slimmer Test::More for when you favor performance over completeness.
+
+=head1 VERSION
+
+Version 0.01
+
+=cut
+
 our $VERSION = '0.01';
 
+=head1 SYNOPSIS
+
+    use Test::Leaner tests => 10_000;
+    for (1 .. 10_000) {
+     ...
+     is $one, 1, "checking situation $_";
+    }
+
+
+=head1 DESCRIPTION
+
+When profiling some L<Test::More>-based test script that contained about 10 000 unit tests, I realized that 60% of the time was spent in L<Test::Builder> itself, even though every single test actually involved a costly C<eval STRING>.
+
+This module aims to be a partial replacement to L<Test::More> in those situations where you want to run a large number of simple tests.
+
+=cut
+
 use Exporter ();
 
 BEGIN {
@@ -28,6 +55,12 @@ BEGIN {
 my $TAP_STREAM  = *STDOUT;
 my $DIAG_STREAM = *STDERR;
 
+for ($TAP_STREAM, $DIAG_STREAM) {
+ my $fh = select $_;
+ $|++;
+ select $fh;
+}
+
 my ($plan, $test, $failed, $no_diag, $done_testing);
 
 sub NO_PLAN  () { -1 }
@@ -63,6 +96,14 @@ sub sanitize_comment {
  $_[0] =~ s/\n/\n# /g;
 }
 
+=head1 FUNCTIONS
+
+The following functions from L<Test::More> are implemented and exported by default.
+
+=head2 C<< plan [ tests => $count | 'no_plan' | skip_all => $reason ] >>
+
+=cut
+
 sub plan {
  my ($key, $value) = @_;
 
@@ -96,12 +137,6 @@ sub plan {
   croak("plan() doesn't understand @args");
  }
 
- {
-  my $fh = select $TAP_STREAM;
-  $|++;
-  select $fh;
- }
-
  if (defined $plan_str) {
   local $\;
   print $TAP_STREAM "$plan_str\n";
@@ -143,6 +178,7 @@ sub import {
     push @imports, @{ $_[$i+1] };
     $splice  = 2;
    } elsif ($item eq 'no_diag') {
+    lock $plan if THREADSAFE;
     $no_diag = 1;
     $splice  = 1;
    }
@@ -163,11 +199,19 @@ sub import {
  goto &Exporter::import;
 }
 
+=head2 C<skip_all $reason>
+
+=cut
+
 sub skip_all {
  @_ = (skip_all => $_[0]);
  goto &plan;
 }
 
+=head2 C<< skip $reason => $count >>
+
+=cut
+
 sub skip {
  my ($reason, $count) = @_;
 
@@ -199,6 +243,10 @@ sub skip {
  last SKIP;
 }
 
+=head2 C<done_testing [ $count ]>
+
+=cut
+
 sub done_testing {
  my ($count) = @_;
 
@@ -226,6 +274,10 @@ sub done_testing {
  return 1;
 }
 
+=head2 C<ok $ok [, $desc ]>
+
+=cut
+
 sub ok ($;$) {
  my ($ok, $desc) = @_;
 
@@ -249,16 +301,28 @@ sub ok ($;$) {
  return $ok;
 }
 
+=head2 C<pass [ $desc ]>
+
+=cut
+
 sub pass (;$) {
  unshift @_, 1;
  goto &ok;
 }
 
+=head2 C<fail [ $desc ]>
+
+=cut
+
 sub fail (;$) {
  unshift @_, 0;
  goto &ok;
 }
 
+=head2 C<is $got, $expected [, $desc ]>
+
+=cut
+
 sub is ($$;$) {
  my ($got, $expected, $desc) = @_;
  no warnings 'uninitialized';
@@ -269,6 +333,10 @@ sub is ($$;$) {
  goto &ok;
 }
 
+=head2 C<isnt $got, $expected [, $desc ]>
+
+=cut
+
 sub isnt ($$;$) {
  my ($got, $expected, $desc) = @_;
  no warnings 'uninitialized';
@@ -331,12 +399,22 @@ IS_BINOP
  }
 }
 
+=head2 C<like $got, $regexp_expected [, $desc ]>
+
+=head2 C<unlike $got, $regexp_expected, [, $desc ]>
+
+=cut
+
 {
  no warnings 'once';
  *like   = _create_binop_handler('=~');
  *unlike = _create_binop_handler('!~');
 }
 
+=head2 C<cmp_ok $got, $op, $expected [, $desc ]>
+
+=cut
+
 sub cmp_ok ($$$;$) {
  my ($got, $op, $expected, $desc) = @_;
  my $handler = $binop_handlers{$op};
@@ -366,16 +444,28 @@ sub _diag_fh {
  return 0;
 };
 
+=head2 C<diag @text>
+
+=cut
+
 sub diag {
  unshift @_, $DIAG_STREAM;
  goto &_diag_fh;
 }
 
+=head2 C<note @text>
+
+=cut
+
 sub note {
  unshift @_, $TAP_STREAM;
  goto &_diag_fh;
 }
 
+=head2 C<BAIL_OUT [ $desc ]>
+
+=cut
+
 sub BAIL_OUT {
  my ($desc) = @_;
 
@@ -410,4 +500,40 @@ END {
  }
 }
 
+=pod
+
+L</pass>, L</fail>, L</ok>, L</is>, L</isnt>, L</like>, L</unlike> and L</cmp_ok> are all guaranteed to return the truth value of the test.
+Their L<Test::More> counterparts behave the same, but it is not documented anywhere.
+
+=head1 DEPENDENCIES
+
+L<perl> 5.6.
+
+L<Exporter>, L<Test::More>
+
+=head1 AUTHOR
+
+Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.
+
+You can contact me by mail or on C<irc.perl.org> (vincent).
+
+=head1 BUGS
+
+Please report any bugs or feature requests to C<bug-test-leaner at rt.cpan.org>, or through the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Leaner>.
+I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
+
+=head1 SUPPORT
+
+You can find documentation for this module with the perldoc command.
+
+    perldoc Test::Leaner
+
+=head1 COPYRIGHT & LICENSE
+
+Copyright 2010 Vincent Pit, all rights reserved.
+
+This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
+
+=cut
+
 1; # End of Test::Leaner