forked from lix-project/hydra
![Graham Christensen](/assets/img/avatar_default.png)
This lets us test the event loop if we wanted, and lets us test the listening behavior in isolation.
80 lines
2.1 KiB
Perl
80 lines
2.1 KiB
Perl
use strict;
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use Setup;
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my %ctx = test_init();
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require Hydra::Model::DB;
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use Hydra::PostgresListener;
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use Test2::V0;
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my $db = Hydra::Model::DB->new;
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my $dbh = $db->storage->dbh;
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my $listener = Hydra::PostgresListener->new($dbh);
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$listener->subscribe("foo");
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$listener->subscribe("bar");
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is(undef, $listener->block_for_messages(0)->(), "There is no message");
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is(undef, $listener->block_for_messages(0)->(), "There is no message");
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is(undef, $listener->block_for_messages(0)->(), "There is no message");
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$dbh->do("notify foo, ?", undef, "hi");
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my $event = $listener->block_for_messages(0)->();
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is($event->{'channel'}, "foo", "The channel matches");
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isnt($event->{'pid'}, undef, "The pid is set");
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is($event->{'payload'}, "hi", "The payload matches");
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is(undef, $listener->block_for_messages(0)->(), "There is no message");
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like(
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dies {
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local $SIG{ALRM} = sub { die "timeout" };
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alarm 1;
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$listener->block_for_messages->();
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alarm 0;
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},
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qr/timeout/,
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"An unspecified block should block forever"
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);
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like(
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dies {
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local $SIG{ALRM} = sub { die "timeout" };
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alarm 1;
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$listener->block_for_messages(2)->();
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alarm 0;
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},
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qr/timeout/,
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"A 2-second block goes longer than 1 second"
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);
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ok(
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lives {
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local $SIG{ALRM} = sub { die "timeout" };
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alarm 2;
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is(undef, $listener->block_for_messages(1)->(), "A one second block returns undef data after timeout");
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alarm 0;
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},
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"A 1-second block expires within 2 seconds"
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);
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subtest "with wacky channel names" => sub {
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my $channel = "foo! very weird channel names...; select * from t where 1 = 1";
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my $escapedChannel = $dbh->quote_identifier($channel);
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$listener->subscribe($channel);
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is(undef, $listener->block_for_messages(0)->(), "There is no message");
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$dbh->do("notify $escapedChannel, ?", undef, "hi");
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my $event = $listener->block_for_messages(0)->();
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is($event->{'channel'}, $channel, "The channel matches");
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isnt($event->{'pid'}, undef, "The pid is set");
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is($event->{'payload'}, "hi", "The payload matches");
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};
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done_testing;
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