NAME

       Test::SubCalls - Track the number of times subs are called

SYNOPSIS

         use Test::SubCalls;

         # Start tracking calls to a named sub
         sub_track( 'Foo::foo' );

         # Run some test code
         ...

         # Test that some sub deep in the codebase was called
         # a specific number of times.
         sub_calls( 'Foo::foo', 5 );
         sub_calls( 'Foo::foo', 5, 'Use a custom test message' );

         # Reset the counts for one or all subs
         sub_reset( 'Foo::foo' );
         sub_reset_all();

DESCRIPTION

       There are a number of different situations (like testing caching code) where you want to
       want to do a number of tests, and then verify that some underlying subroutine deep within
       the code was called a specific number of times.

       This module provides a number of functions for doing testing in this way in association
       with your normal Test::More (or similar) test scripts.

FUNCTIONS

       In the nature of test modules, all functions are exported by default.

   sub_track $subname
       The "sub_track" function creates a new call tracker for a named function.

       The sub to track must be provided by name, references to the function itself are
       insufficient.

       Returns true if added, or dies on error.

   sub_calls $subname, $expected_calls [, $message ]
       The "sub_calls" function is the primary (and only) testing function provided by
       "Test::SubCalls". A single call will represent one test in your plan.

       It takes the subroutine name as originally provided to "sub_track", the expected number of
       times the subroutine should have been called, and an optional test message.

       If no message is provided, a default message will be provided for you.

       Test is ok if the number of times the sub has been called matches the expected number, or
       not ok if not.

   sub_reset $subname
       To prevent repeat users from having to take before and after counts when they start
       testing from after zero, the "sub_reset" function has been provided to reset a sub call
       counter to zero.

       Returns true or dies if the sub name is invalid or not currently tracked.

   sub_reset_all
       Provided mainly as a convenience, the "sub_reset_all" function will reset all the counters
       currently defined.

       Returns true.

SUPPORT

       Bugs should be submitted via the CPAN bug tracker, located at

       <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-SubCalls>

       For other issues, or commercial enhancement or support, contact the author.

AUTHOR

       Adam Kennedy <adamk@cpan.org>

SEE ALSO

       <http://ali.as/>, Test::Builder, Test::More, Hook::LexWrap

COPYRIGHT

       Copyright 2005 - 2009 Adam Kennedy.

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

       The full text of the license can be found in the LICENSE file included with this module.