#!perl -T use Test::More tests => 4; use Device::USB; use strict; use warnings; my $usb = Device::USB->new(); ok( defined $usb, "Object successfully created" ); can_ok( $usb, "find_busses", "find_devices" ); my $bus_changes = $usb->find_busses(); is( $usb->find_busses(), 0, "No bus changes since last call." ); my $device_changes = $usb->find_devices(); is( $usb->find_devices(), 0, "No device changes since last call." );