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.IX Title "Appender::TestBuffer 3"
.TH Appender::TestBuffer 3 2026-08-14 "perl v5.42.2" "User Contributed Perl Documentation"
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.SH NAME
Log::Log4perl::Appender::TestBuffer \- Appender class for testing
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\&  use Log::Log4perl::Appender::TestBuffer;
\&
\&  my $appender = Log::Log4perl::Appender::TestBuffer\->new( 
\&      name      => \*(Aqmybuffer\*(Aq,
\&  );
\&
\&      # Append to the buffer
\&  $appender\->log( 
\&      level =  > \*(Aqalert\*(Aq, 
\&      message => "I\*(Aqm searching the city for sci\-fi wasabi\en" 
\&  );
\&
\&      # Retrieve the result
\&  my $result = $appender\->buffer();
\&
\&      # Clear the buffer to the empty string
\&  $appender\->clear();
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
This class is used for internal testing of \f(CW\*(C`Log::Log4perl\*(C'\fR. It
is a \f(CW\*(C`Log::Dispatch\*(C'\fR\-style appender, which writes to a buffer 
in memory, from where actual results can be easily retrieved later
to compare with expected results.
.PP
Every buffer created is stored in an internal global array, and can
later be referenced by name:
.PP
.Vb 1
\&    my $app = Log::Log4perl::Appender::TestBuffer\->by_name("mybuffer");
.Ve
.PP
retrieves the appender object of a previously created buffer "mybuffer".
To reset this global array and have it forget all of the previously 
created testbuffer appenders (external references to those appenders
nonwithstanding), use
.PP
.Vb 1
\&    Log::Log4perl::Appender::TestBuffer\->reset();
.Ve
.SH "SEE ALSO"
.IX Header "SEE ALSO"
.SH LICENSE
.IX Header "LICENSE"
Copyright 2002\-2026 by Mike Schilli <m@perlmeister.com>
and Kevin Goess <cpan@goess.org>.
.PP
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.