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.IX Title "Test2::Manual::Testing::Todo 3"
.TH Test2::Manual::Testing::Todo 3 "2019-05-18" "perl v5.10.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Test2::Manual::Testing::Todo \- Tutorial for marking tests as TODO.
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This tutorial covers the process of marking tests as \s-1TODO\s0. It also describes
how \s-1TODO\s0 works under the hood.
.SH "THE TOOL"
.IX Header "THE TOOL"
.Vb 1
\&    use Test2::Tools::Basic qw/todo/;
.Ve
.SS "\s-1TODO\s0 \s-1BLOCK\s0"
.IX Subsection "TODO BLOCK"
This form is low-magic. All tests inside the block are marked as todo, tests
outside the block are not todo. You do not need to do any variable management.
The flaw with this form is that it adds a couple levels to the stack, which can
break some high-magic tests.
.PP
Overall this is the preferred form unless you have a special case that requires
the variable form.
.PP
.Vb 4
\&    todo "Reason for the todo" => sub {
\&        ok(0, "fail but todo");
\&        ...
\&    };
.Ve
.SS "\s-1TODO\s0 \s-1VARIABLE\s0"
.IX Subsection "TODO VARIABLE"
This form maintains the todo scope for the life of the variable. This is useful
for tests that are sensitive to scope changes. This closely emulates the
Test::More style which localized the \f(CW$TODO\fR package variable. Once the
variable is destroyed (set it to undef, scope end, etc) the \s-1TODO\s0 state ends.
.PP
.Vb 4
\&    my $todo = todo "Reason for the todo";
\&    ok(0, "fail but todo");
\&    ...
\&    $todo = undef;
.Ve
.SH "MANUAL TODO EVENTS"
.IX Header "MANUAL TODO EVENTS"
.Vb 1
\&    use Test2::API qw/context/;
\&
\&    sub todo_ok {
\&        my ($bool, $name, $todo) = @_;
\&
\&        my $ctx = context();
\&        $ctx\->send_event(\*(AqOk\*(Aq, pass => $bool, effective_pass => 1, todo => $todo);
\&        $ctx\->release;
\&
\&        return $bool;
\&    }
.Ve
.PP
The Test2::Event::Ok event has a \f(CW\*(C`todo\*(C'\fR field which should have the todo
reason. The event also has the \f(CW\*(C`pass\*(C'\fR and \f(CW\*(C`effective_pass\*(C'\fR fields. The
\&\f(CW\*(C`pass\*(C'\fR field is the actual pass/fail value. The \f(CW\*(C`effective_pass\*(C'\fR is used to
determine if the event is an actual failure (should always be set tot true with
todo).
.SH "HOW THE TODO TOOLS WORK UNDER THE HOOD"
.IX Header "HOW THE TODO TOOLS WORK UNDER THE HOOD"
The Test2::Todo library gets the current Test2::Hub instance and adds a
filter. The filter that is added will set the todo and effective pass fields on
any Test2::Event::Ok events that pass through the hub. The filter also
converts Test2::Event::Diag events into Test2::Event::Note events.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Test2::Manual \- Primary index of the manual.
.SH "SOURCE"
.IX Header "SOURCE"
The source code repository for Test2\-Manual can be found at
\&\fIhttps://github.com/Test\-More/Test2\-Suite/\fR.
.SH "MAINTAINERS"
.IX Header "MAINTAINERS"
.IP "Chad Granum <exodist@cpan.org>" 4
.IX Item "Chad Granum <exodist@cpan.org>"
.SH "AUTHORS"
.IX Header "AUTHORS"
.PD 0
.IP "Chad Granum <exodist@cpan.org>" 4
.IX Item "Chad Granum <exodist@cpan.org>"
.PD
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2018 Chad Granum <exodist@cpan.org>.
.PP
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
.PP
See \fIhttp://dev.perl.org/licenses/\fR
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