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#!/usr/bin/perl
use perl5i::latest;
use Test::More;
use Test::Warn;
# Test name construction
{
sub { 42 }->alias("foo");
is foo(), 42;
sub { 23 }->alias("Local::Class", "foo");
is Local::Class->foo, 23;
sub { 99 }->alias(qw(This Is A Little Silly));
is This::Is::A::Little::Silly(), 99;
sub { 123 }->alias("Some::thing");
is Some::thing(), 123, "caller only prepended if there's no ::";
sub { 234 }->alias("this", "that");
is this::that(), 234, "caller not prepended if there's more than one";
sub bar { "wibble" }
(\&bar)->alias("that");
is that(), "wibble";
}
# Things other than code.
{
our $foo;
(\23)->alias('foo');
is $foo, 23;
our @bar;
[1,2,3]->alias('bar');
is_deeply \@bar, [1,2,3];
our %baz;
{ foo => 23, bar => 42 }->alias('baz');
is_deeply \%baz, { foo => 23, bar => 42 };
}
# Make sure its an alias and not a copy
{
my @src = qw(1 2 3);
our @dest;
@src->alias("dest");
is \@src, \@dest;
my $src = \23;
our $dest;
$src->alias("dest");
is $src, \$dest;
}
# Errors
{
ok !eval {
sub{}->alias();
1;
};
like $@, qr{^\QNot enough arguments given to alias()};
ok !eval {
23->alias("bar");
1;
};
like $@, qr{scalars cannot be aliased};
}
# No redefine warnings:
{
sub egg { 42 }
sub ham { 10 }
warning_is {
(\&egg)->alias('ham');
} undef, 'no warning';
}
done_testing;
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