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|
#!/usr/bin/perl
use v5.14;
use warnings;
use Test2::V0;
use Net::Prometheus;
my $client = Net::Prometheus->new(
disable_process_collector => 1,
disable_perl_collector => 1,
);
ok( defined $client, 'defined $client' );
# initially empty
is( $client->render, "", '$client->render gives empty string' );
# with some metrics
{
$client->new_gauge(
name => "gauge",
help => "A gauge metric",
)->set( 123 );
$client->new_counter(
name => "counter",
help => "A counter metric",
)->inc();
is( $client->render, <<'EOF', '$client->render gives metric results' );
# HELP counter A counter metric
# TYPE counter counter
counter 1
# HELP gauge A gauge metric
# TYPE gauge gauge
gauge 123
EOF
}
# NaN rendering
{
my $client = Net::Prometheus->new(
disable_process_collector => 1,
disable_perl_collector => 1,
);
$client->new_gauge(
name => "gauge",
help => "undefined",
)->set( "nan" );
is( $client->render, <<'EOF', '$client->render renders NaN' );
# HELP gauge undefined
# TYPE gauge gauge
gauge NaN
EOF
}
# undef is absent
{
my $client = Net::Prometheus->new(
disable_process_collector => 1,
disable_perl_collector => 1,
);
$client->new_gauge(
name => "gauge",
help => "undefined",
)->set( undef );
is( $client->render, <<'EOF', '$client->render renders undef absent' );
# HELP gauge undefined
# TYPE gauge gauge
EOF
}
# HELP escaping
{
my $client = Net::Prometheus->new(
disable_process_collector => 1,
disable_perl_collector => 1,
);
$client->new_gauge(
name => "gauge",
help => "with\nlinefeed",
)->set( 0 );
is( $client->render, <<'EOF', '$client->render escapes HELP text' );
# HELP gauge with\nlinefeed
# TYPE gauge gauge
gauge 0
EOF
}
# metric groups
{
is(
$client->new_metricgroup(
namespace => "namespc"
)->new_gauge(
subsystem => "subsys",
name => "gauge",
help => ""
)->fullname,
"namespc_subsys_gauge",
'Metric Group can provide default namespace'
);
is(
$client->new_metricgroup(
subsystem => "subsys",
)->new_gauge(
name => "gauge",
help => ""
)->fullname,
"subsys_gauge",
'Metric Group can provide default subsystem'
);
}
done_testing;
|
