NAME

       Test2::Tools::Tester - Tools to help you test other testing tools.

DESCRIPTION

       This is a collection of tools that are useful when testing other test tools.

SYNOPSIS

           use Test2::Tools::Tester qw/event_groups filter_events facets/;

           use Test2::Tools::Basic qw/plan pass ok/;
           use Test2::Tools::Compare qw/is like/;

           my $events = intercept {
               plan 11;

               pass('pass');
               ok(1, 'pass');

               is(1, 1, "pass");
               like(1, 1, "pass");
           };

           # Grab events generated by tools in Test2::Tools::Basic
           my $basic = filter $events => 'Test2::Tools::Basic';

           # Grab events generated by Test2::Tools::Basic;
           my $compare = filter $events => 'Test2::Tools::Compare';

           # Grab events generated by tools named 'ok'.
           my $oks = filter $events => qr/.*::ok$/;

           my $grouped = group_events $events;
           # Breaks events into this structure:
           {
               '__NA__' => [ ... ],
               'Test2::Tools::Basic' => {
                   '__ALL__' => [ $events->[0], $events->[1], $events->[2] ],
                   plan => [ $events->[0] ],
                   pass => [ $events->[1] ],
                   ok => [ $events->[2] ],
               },
               Test2::Tools::Compare => { ... },
           }

           # Get an arrayref of all the assert facets from the list of events.
           my $assert_facets = facets assert => $events;
           # [
           #   bless({ details => 'pass', pass => 1}, 'Test2::EventFacet::Assert'),
           #   bless({ details => 'pass', pass => 1}, 'Test2::EventFacet::Assert'),
           # ]

           # Same, but for info facets
           my $info_facets = facets info => $events;

EXPORTS

       No subs are exported by default.

       $array_ref = filter $events => $PACKAGE
       $array_ref = filter $events => $PACKAGE1, $PACKAGE2
       $array_ref = filter $events => qr/match/
       $array_ref = filter $events => qr/match/, $PACKAGE
           This function takes an arrayref of events as the first argument. All additional
           arguments must either be a package name, or a regex. Any event that is generated by a
           tool in any of the package, or by a tool that matches any of the regexes, will be
           returned in an arrayref.

       $grouped = group_events($events)
           This function iterates all the events in the argument arrayref and splits them into
           groups. The resulting data structure is:

               { PACKAGE => { SUBNAME => [ $EVENT1, $EVENT2, ... }}

           If the package of an event is not known it will be put into and arrayref under the
           '__NA__' key at the root of the structure. If a sub name is not known it will
           typically go under the '__ANON__' key in under the package name.

           In addition there is an '__ALL__' key under each package which stores all of the
           events sorted into that group.

           A more complete example:

               {
                   '__NA__' => [ $event->[3] ],
                   'Test2::Tools::Basic' => {
                       '__ALL__' => [ $events->[0], $events->[1], $events->[2] ],
                       plan => [ $events->[0] ],
                       pass => [ $events->[1] ],
                       ok => [ $events->[2] ],
                   },
               }

       $arrayref = facets TYPE => $events
           This function will compile a list of all facets of the specified type that are found
           in the arrayref of events. If the facet has a "Test2::EventFacet::TYPE" package
           available then the facet will be constructed into an instance of the class, otherwise
           it is left as a hashref. Facet Order is preserved.

               my $assert_facets = facets assert => $events;
               # [
               #   bless({ details => 'pass', pass => 1}, 'Test2::EventFacet::Assert'),
               #   bless({ details => 'pass', pass => 1}, 'Test2::EventFacet::Assert'),
               # ]

SOURCE

       The source code repository for Test2-Suite can be found at
       https://github.com/Test-More/Test2-Suite/.

MAINTAINERS

       Chad Granum <exodist@cpan.org>

AUTHORS

       Chad Granum <exodist@cpan.org>

COPYRIGHT

       Copyright 2017 Chad Granum <exodist@cpan.org>.

       This program is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

       See http://dev.perl.org/licenses/