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use Moo::_strictures;
use Test::More;
use Test::Fatal;
use Sub::Defer qw(defer_sub undefer_sub undefer_all undefer_package);
my %made;
my $one_defer = defer_sub 'Foo::one' => sub {
die "remade - wtf" if $made{'Foo::one'};
$made{'Foo::one'} = sub { 'one' }
};
my $two_defer = defer_sub 'Foo::two' => sub {
die "remade - wtf" if $made{'Foo::two'};
$made{'Foo::two'} = sub { 'two' }
};
is($one_defer, \&Foo::one, 'one defer installed');
is($two_defer, \&Foo::two, 'two defer installed');
is($one_defer->(), 'one', 'one defer runs');
is($made{'Foo::one'}, \&Foo::one, 'one made');
is($made{'Foo::two'}, undef, 'two not made');
is($one_defer->(), 'one', 'one (deferred) still runs');
is(Foo->one, 'one', 'one (undeferred) runs');
like exception { defer_sub 'welp' => sub { sub { 1 } } },
qr/^welp is not a fully qualified sub name!/,
'correct error for defer_sub with unqualified name';
is(my $two_made = undefer_sub($two_defer), $made{'Foo::two'}, 'make two');
is exception { undefer_sub($two_defer) }, undef,
"repeated undefer doesn't regenerate";
is($two_made, \&Foo::two, 'two installed');
is($two_defer->(), 'two', 'two (deferred) still runs');
is($two_made->(), 'two', 'two (undeferred) runs');
my $three = sub { 'three' };
is(undefer_sub($three), $three, 'undefer non-deferred is a no-op');
my $four_defer = defer_sub 'Foo::four' => sub {
sub { 'four' }
};
is($four_defer, \&Foo::four, 'four defer installed');
# somebody somewhere wraps up around the deferred installer
no warnings qw/redefine/;
my $orig = Foo->can('four');
*Foo::four = sub {
$orig->() . ' with a twist';
};
is(Foo->four, 'four with a twist', 'around works');
is(Foo->four, 'four with a twist', 'around has not been destroyed by first invocation');
my $one_all_defer = defer_sub 'Foo::one_all' => sub {
$made{'Foo::one_all'} = sub { 'one_all' }
};
my $two_all_defer = defer_sub 'Foo::two_all' => sub {
$made{'Foo::two_all'} = sub { 'two_all' }
};
is( $made{'Foo::one_all'}, undef, 'one_all not made' );
is( $made{'Foo::two_all'}, undef, 'two_all not made' );
undefer_all();
is( $made{'Foo::one_all'}, \&Foo::one_all, 'one_all made by undefer_all' );
is( $made{'Foo::two_all'}, \&Foo::two_all, 'two_all made by undefer_all' );
defer_sub 'Bar::one' => sub {
$made{'Bar::one'} = sub { 'one' }
};
defer_sub 'Bar::two' => sub {
$made{'Bar::two'} = sub { 'two' }
};
defer_sub 'Bar::Baz::one' => sub {
$made{'Bar::Baz::one'} = sub { 'one' }
};
undefer_package('Bar');
is( $made{'Bar::one'}, \&Bar::one, 'one made by undefer_package' );
is( $made{'Bar::two'}, \&Bar::two, 'two made by undefer_package' );
is( $made{'Bar::Baz::one'}, undef, 'sub-package not undefered by undefer_package' );
{
my $foo = defer_sub undef, sub { sub { 'foo' } };
my $foo_string = "$foo";
undef $foo;
is Sub::Defer::defer_info($foo_string), undef,
"deferred subs don't leak";
Sub::Defer->CLONE;
ok !exists $Sub::Defer::DEFERRED{$foo_string},
'CLONE cleans out expired entries';
}
{
my $foo = defer_sub undef, sub { sub { 'foo' } };
my $foo_string = "$foo";
Sub::Defer->CLONE;
undef $foo;
is Sub::Defer::defer_info($foo_string), undef,
"CLONE doesn't strengthen refs";
}
{
my $foo = defer_sub undef, sub { sub { 'foo' } };
my $foo_string = "$foo";
my $foo_info = Sub::Defer::defer_info($foo_string);
undef $foo;
is exception { Sub::Defer->CLONE }, undef,
'CLONE works when quoted info saved externally';
ok exists $Sub::Defer::DEFERRED{$foo_string},
'CLONE keeps entries that had info saved externally';
}
{
my $foo = defer_sub undef, sub { sub { 'foo' } };
my $foo_string = "$foo";
my $foo_info = $Sub::Defer::DEFERRED{$foo_string};
undef $foo;
is exception { Sub::Defer->CLONE }, undef,
'CLONE works when quoted info kept alive externally';
ok !exists $Sub::Defer::DEFERRED{$foo_string},
'CLONE removes expired entries that were kept alive externally';
}
{
my $foo = defer_sub undef, sub { sub { 'foo' } };
my $foo_string = "$foo";
undef $foo;
Sub::Defer::undefer_package 'Unused';
is exception { undefer_sub $foo_string }, undef,
"undeferring expired sub (or reused refaddr) after undefer_package lives";
}
{
my $foo;
my $sub = defer_sub undef, sub { +sub :lvalue { $foo } }, { attributes => [ 'lvalue' ]};
$sub->() = 'foo';
is $foo, 'foo', 'attributes are applied to deferred subs';
}
done_testing;
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