Testing code that uses method modifiers such as before, after, and around in Perl can be done using modules like Test::More and Moose or MooseX::Method::Modifiers. We can write tests to ensure that our method modifiers are behaving as expected. Below is an example demonstrating how to test methods with modifiers in Perl.
# Sample Perl Code with Method Modifiers
use Moose;
use MooseX::Method::Modifiers;
# A simple class with a method
package MyClass {
use Moose;
sub foo {
return "original foo";
}
}
# Adding modifiers with MooseX::Method::Modifiers
around 'foo' => sub {
my ($orig, $self) = @_;
return "around: " . $self->$orig();
};
before 'foo' => sub {
my $self = shift;
return "before: " . $self->foo();
};
after 'foo' => sub {
my $self = shift;
return "after: " . $self->foo();
};
# Testing the method modifiers
use Test::More;
my $obj = MyClass->new();
is($obj->foo(), "after: before: around: original foo", 'foo returns expected value');
done_testing();
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