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#!perl -w
use strict;
use Test::More tests =>32;
use Test::Exception;
use Data::Util qw(:all);
use constant PP_ONLY => $INC{'Data/Util/PurePerl.pm'};
sub get_subname{
return scalar get_code_info(@_);
}
sub foo{
42;
}
sub bar{
52;
}
{
package Base;
sub foo{
'Base::foo';
}
package Foo;
our @ISA = qw(Base);
use Data::Util qw(install_subroutine);
sub baz{}
package Callable;
use overload
'&{}' => 'codify',
;
sub new{
my $class = shift;
bless {@_} => $class;
}
sub codify{
my $self = shift;
$self->{code};
}
}
is_deeply get_subname(\&foo), 'main::foo', 'get_code_info()';
is_deeply [get_code_info(\&foo)], [qw(main foo)];
is_deeply get_subname(\&Foo::baz), 'Foo::baz', 'get_code_info()';
is_deeply [get_code_info(\&Foo::baz)], [qw(Foo baz)];
is_deeply get_subname(\&undefined_subr), 'main::undefined_subr';
is_deeply [get_code_info(\&undefined_subr)], [qw(main undefined_subr)];
no warnings 'redefine';
Foo->foo(); # touch the chache
Foo->install_subroutine(foo => \&foo);
is Foo::foo(), foo(), 'as function';
is(Foo->foo(), foo(), 'as method');
Foo->install_subroutine(foo => \&bar);
is Foo::foo(), bar(), 'redefined';
Foo->install_subroutine(foo => sub{ 314 });
is Foo::foo(), 314, 'install anonymous subr';
SKIP:{
skip 'in testing perl only', 1 if PP_ONLY;
is get_subname(\&Foo::foo), 'Foo::foo', '...named';
}
Foo->install_subroutine(foo => \&foo);
is Foo::foo(), foo();
SKIP:{
skip 'in testing perl only', 1 if PP_ONLY;
is get_subname(\&Foo::foo), 'main::foo';
}
{
my $count = 0;
Foo->install_subroutine(foo => sub{ ++$count });
}
is Foo::foo(), 1, 'install closure';
is Foo::foo(), 2;
SKIP:{
skip 'in testing perl only', 2 if PP_ONLY;
Foo->install_subroutine(foo => sub{});
is get_subname(\&Foo::foo), 'Foo::foo', 'name an anonymous subr';
Foo->install_subroutine(bar => \&Foo::foo);
is get_subname(\&Foo::bar), 'Foo::foo', 'does not name a named subr';
}
# exception
Foo->install_subroutine(foo => \&undefined_subr);
dies_ok{
Foo->foo();
} 'install undefined subroutine';
Foo->install_subroutine(ov1 => Callable->new(code => sub{ 'overloaded' }));
is Foo::ov1(), 'overloaded', 'overload';
Foo->install_subroutine(ov2 => Callable->new(code => sub{ die 'dies in codify' }));
throws_ok{
Foo::ov2();
} qr/dies in codify/;
dies_ok{
Foo->install_subroutine(ov3 => Callable->new(code => []));
};
dies_ok{
Foo->install_subroutine(ov4 => Callable->new(code => undef));
};
use warnings FATAL => 'redefine';
throws_ok{
get_code_info(undef);
} qr/CODE reference/;
throws_ok{
install_subroutine();
} qr/^Usage: /;
dies_ok{
Foo->install_subroutine('foo');
};
throws_ok{
Data::Util::install_subroutine(undef, foo => \&foo);
} qr/package name/;
throws_ok{
Foo->install_subroutine(PI => 3.14);
} qr/CODE reference/;
throws_ok{
Foo->install_subroutine(undef, sub{});
} qr/\b name\b /xms;
throws_ok{
Foo->install_subroutine([], sub{});
} qr/\b name\b /xms;
# multiple installation
install_subroutine(__PACKAGE__, f1 => sub{ 1 }, f2 => sub{ 2 }, f3 => sub{ 3 });
is f1(), 1, 'multiple installation(1)';
is f2(), 2, 'multiple installation(2)';
is f3(), 3, 'multiple installation(3)';;
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