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|
#!/usr/bin/perl
use strict;
use warnings;
use Test::More;
use Test::Fatal;
use Test::Refcount;
use IO::Async::Notifier;
{
my $notifier = IO::Async::Notifier->new(
notifier_name => "test1",
);
ok( defined $notifier, '$notifier defined' );
isa_ok( $notifier, "IO::Async::Notifier", '$notifier isa IO::Async::Notifier' );
is_oneref( $notifier, '$notifier has refcount 1 initially' );
is( $notifier->notifier_name, "test1", '$notifier->notifier_name' );
ok( !exception { $notifier->configure; },
'$notifier->configure no params succeeds' );
ok( exception { $notifier->configure( oranges => 1 ) },
'$notifier->configure an unknown parameter fails' );
my %other;
no warnings 'redefine';
local *IO::Async::Notifier::configure_unknown = sub {
shift;
%other = @_;
};
ok( !exception { $notifier->configure( oranges => 3 ) },
'$notifier->configure with configure_unknown succeeds' );
is_deeply( \%other, { oranges => 3 }, '%other after configure_unknown' );
}
# weaseling
{
my $notifier = IO::Async::Notifier->new;
my @args;
my $mref = $notifier->_capture_weakself( sub { @args = @_ } );
is_oneref( $notifier, '$notifier has refcount 1 after _capture_weakself' );
$mref->( 123 );
is_deeply( \@args, [ $notifier, 123 ], '@args after invoking $mref' );
my @callstack;
$notifier->_capture_weakself( sub {
my $level = 0;
push @callstack, [ (caller $level++)[0,3] ] while defined caller $level;
} )->();
is_deeply( \@callstack,
[ [ "main", "main::__ANON__" ] ],
'trampoline does not appear in _capture_weakself callstack' );
undef @args;
$mref = $notifier->_replace_weakself( sub { @args = @_ } );
is_oneref( $notifier, '$notifier has refcount 1 after _replace_weakself' );
my $outerself = bless [], "OtherClass";
$mref->( $outerself, 456 );
is_deeply( \@args, [ $notifier, 456 ], '@args after invoking replacer $mref' );
isa_ok( $outerself, "OtherClass", '$outerself unchanged' );
ok( exception { $notifier->_capture_weakself( 'cannotdo' ) },
'$notifier->_capture_weakself on unknown method name fails' );
}
# Subclass
{
my @subargs;
{
package TestNotifier;
use base qw( IO::Async::Notifier );
sub frobnicate { @subargs = @_ }
}
my $subn = TestNotifier->new;
my $mref = $subn->_capture_weakself( 'frobnicate' );
is_oneref( $subn, '$subn has refcount 1 after _capture_weakself on named method' );
$mref->( 456 );
is_deeply( \@subargs, [ $subn, 456 ], '@subargs after invoking $mref on named method' );
undef @subargs;
# Method capture
{
my @newargs;
no warnings 'redefine';
local *TestNotifier::frobnicate = sub { @newargs = @_; };
$mref->( 321 );
is_deeply( \@subargs, [], '@subargs empty after TestNotifier::frobnicate replacement' );
is_deeply( \@newargs, [ $subn, 321 ], '@newargs after TestNotifier::frobnicate replacement' );
}
undef @subargs;
$subn->invoke_event( 'frobnicate', 78 );
is_deeply( \@subargs, [ $subn, 78 ], '@subargs after ->invoke_event' );
undef @subargs;
is_deeply( $subn->maybe_invoke_event( 'frobnicate', 'a'..'c' ),
[ $subn, 'a'..'c' ],
'return value from ->maybe_invoke_event' );
is( $subn->maybe_invoke_event( 'mangle' ), undef, 'return value from ->maybe_invoke_event on missing event' );
undef @subargs;
my $cb = $subn->make_event_cb( 'frobnicate' );
is( ref $cb, "CODE", '->make_event_cb returns a CODE reference' );
is_oneref( $subn, '$subn has refcount 1 after ->make_event_cb' );
$cb->( 90 );
is_deeply( \@subargs, [ $subn, 90 ], '@subargs after ->make_event_cb->()' );
isa_ok( $subn->maybe_make_event_cb( 'frobnicate' ), "CODE", '->maybe_make_event_cb yields CODE ref' );
is( $subn->maybe_make_event_cb( 'mangle' ), undef, '->maybe_make_event_cb on missing event yields undef' );
undef @subargs;
is_oneref( $subn, '$subn has refcount 1 finally' );
}
# parent/child
{
my $parent = IO::Async::Notifier->new;
my $child = IO::Async::Notifier->new;
is_oneref( $parent, '$parent has refcount 1 initially' );
is_oneref( $child, '$child has refcount 1 initially' );
$parent->add_child( $child );
is( $child->parent, $parent, '$child->parent is $parent' );
is_deeply( [ $parent->children ], [ $child ], '$parent->children' );
is_oneref( $parent, '$parent has refcount 1 after add_child' );
is_refcount( $child, 2, '$child has refcount 2 after add_child' );
ok( exception { $parent->add_child( $child ) }, 'Adding child again fails' );
$parent->remove_child( $child );
is_oneref( $child, '$child has refcount 1 after remove_child' );
is_deeply( [ $parent->children ], [], '$parent->children now empty' );
}
# invoke_error
{
my $parent = IO::Async::Notifier->new;
my $child = IO::Async::Notifier->new;
$parent->add_child( $child );
# invoke_error no handler
ok( exception { $parent->invoke_error( "It went wrong", wrong => ) },
'Exception thrown from ->invoke_error with no handler' );
# invoke_error handler
my $err;
$parent->configure( on_error => sub { $err = $_[1] } );
ok( !exception { $parent->invoke_error( "It's still wrong", wrong => ) },
'Exception not thrown from ->invoke_error with handler' );
is( $err, "It's still wrong", '$message to on_error' );
ok( !exception { $child->invoke_error( "Wrong on child", wrong => ) },
'Exception not thrown from ->invoke_error on child' );
is( $err, "Wrong on child", '$message to parent on_error' );
}
done_testing;
|
