NAME

Test::Mock::Guard - Simple mock test library using RAII.

SYNOPSIS

use Test::More;
use Test::Mock::Guard qw(mock_guard);

package Some::Class;

sub new { bless {} => shift }
sub foo { "foo" }
sub bar { 1; }

package main;

{
    my $guard = mock_guard( 'Some::Class', { foo => sub { "bar" }, bar => 10 } );
    my $obj = Some::Class->new;
    is( $obj->foo, "bar" );
    is( $obj->bar, 10 );
}

my $obj = Some::Class->new;
is( $obj->foo, "foo" );
is( $obj->bar, 1 );

done_testing;

DESCRIPTION

Test::Mock::Guard is mock test library using RAII. This module is able to change method behavior by each scope. See SYNOPSIS's sample code.

EXPORT FUNCTION

mock_guard( @class_defs )

@class_defs have the following format.

key

Class name or object to mock.
value

Hash reference. Keys are method names; values are code references or scalars. If the value is code reference, it is used as a method. If the value is a scalar, the method will return the specified value.

You can mock instance methods as well as class methods (this feature was provided by cho45):

use Test::More;
use Test::Mock::Guard qw(mock_guard);

package Some::Class;

sub new { bless {} => shift }
sub foo { "foo" }

package main;

my $obj1 = Some::Class->new;
my $obj2 = Some::Class->new;

{
    my $obj2 = Some::Class->new;
    my $guard = mock_guard( $obj2, { foo => sub { "bar" } } );
    is ($obj1->foo, "foo", "obj1 has not changed" );
    is( $obj2->foo, "bar", "obj2 is mocked" );
}

is( $obj1->foo, "foo", "obj1" );
is( $obj2->foo, "foo", "obj2" );

done_testing;

METHODS

new( @class_defs )

See "mock_guard" definition.

call_count( $class_name_or_object, $method_name )

Returns a number of calling of $method_name in $class_name_or_object.

AUTHOR

Toru Yamaguchi zigorou@cpan.org

Yuji Shimada

Masaki Nakagawa masaki@cpan.org

THANKS TO

cho45 cho45@lowreal.net

LICENSE

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

zigorou/p5-test-mock-guard