--- /dev/null
+use strictures 1;
+use Test::More;
+
+use System::Introspector::DiskUsage;
+
+my $probe = System::Introspector::DiskUsage->new;
+my $data = $probe->gather;
+
+ok scalar(@$data), 'received data';
+my @fields = qw( filesystem blocks_1024 used available capacity mount_point );
+for my $field (@fields) {
+ ok not(grep { not defined $_->{$field} } @$data), "all have $field";
+}
+
+done_testing;