NAME

Test::MockModule - Override subroutines in a module for unit testing

SYNOPSIS

use Module::Name;
use Test::MockModule;

{
    my $module = new Test::MockModule('Module::Name');
    $module->mock('subroutine', sub { ... });
    Module::Name::subroutine(@args); # mocked
}

Module::Name::subroutine(@args); # original subroutine

DESCRIPTION

Test::MockModule lets you temporarily redefine subroutines in other packages for the purposes of unit testing.

A Test::MockModule object is set up to mock subroutines for a given module. The object remembers the original subroutine so it can be easily restored. This happens automatically when all MockModule objects for the given module go out of scope, or when you unmock() the subroutine explicitly.

METHODS

new($package[, %options])

Returns an object that will mock subroutines in the specified $package.

If there is no $VERSION defined in $package, the module will be automatically loaded. You can override this behaviour by setting the no_auto option:

my $mock = new Test::MockModule('Module::Name', no_auto => 1);

get_package()

Returns the target package name for the mocked subroutines

is_mocked($subroutine)

Returns a boolean value indicating whether or not the subroutine is currently mocked

mock($subroutine[, \&coderef])

Temporarily replaces $subroutine with the supplied &coderef. The code reference is optional, and defaults to an empty subroutine if omitted.

You can call mock() for the same subroutine many times, but when you call unmock(), the original subroutine is restored (not the last mocked instance).

original($subroutine)

Returns the original (unmocked) subroutine

unmock($subroutine)

Restores the original $subroutine

unmock_all()

Restores all the subroutines in the package that were mocked. This is automatically called when all Test::MockObject objects for the given package go out of scope.

SEE ALSO

Test::MockObject::Extends

AUTHOR

Simon Flack <simonflk _AT_ cpan.org>

COPYRIGHT

Copyright 2004 Simon Flack <simonflk _AT_ cpan.org>. All rights reserved

You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file.