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|
#!/usr/bin/perl
use v5.14;
use warnings;
use Test2::V0;
use Future;
use Future::AsyncAwait qw( :experimental(cancel) );
my $orig_cxstack_ix = Future::AsyncAwait::__cxstack_ix;
# CANCEL before await
{
my $cancelled;
my $f1 = Future->new;
my $fret = (async sub {
CANCEL { $cancelled++; }
await $f1;
})->();
$fret->get if $fret->is_failed; # report errors
$fret->cancel;
$f1->done;
ok( $cancelled, 'cancelled async sub invokes CANCEL blocks' );
}
# CANCEL after await
{
my $cancelled;
my $f1 = Future->new;
my $f2 = Future->new;
my $fret = (async sub {
await $f1;
CANCEL { $cancelled++; }
await $f2;
})->();
$f1->done;
$fret->get if $fret->is_failed; # report errors
$fret->cancel;
$f2->done;
ok( $cancelled, 'cancelled async sub invokes CANCEL blocks after first await' );
}
# Not cancelled for done
{
my $cancelled;
my $f1 = Future->new;
my $fret = (async sub {
CANCEL { $cancelled++; }
await $f1;
return "OK";
})->();
$fret->get if $fret->is_failed; # report errors
$f1->done;
$fret->get;
ok( !$cancelled, 'no CANCEL block for done sub' );
}
# Not cancelled for failure
{
my $cancelled;
my $f1 = Future->new;
my $fret = (async sub {
CANCEL { $cancelled++; }
await $f1;
die "Oops!\n";
})->();
$fret->get if $fret->is_failed; # report errors
$f1->done;
ok( $fret->is_failed, '$fret failed' );
ok( !$cancelled, 'no CANCEL block for failed sub' );
}
is( Future::AsyncAwait::__cxstack_ix, $orig_cxstack_ix,
'cxstack_ix did not grow during the test' );
done_testing;
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