nagios-plugins/plugins/tests/check_snmp.t

#! /usr/bin/perl -w -I ..
#
# Test check_snmp by having an actual SNMP agent running
#

use strict;
use Test::More;
use NPTest;
use FindBin qw($Bin);

# Check that all dependent modules are available
eval {
	require NetSNMP::OID;
	require NetSNMP::agent;
	require NetSNMP::ASN;
};

if ($@) {
	plan skip_all => "Missing required module for test: $@";
}

my $port_snmp = 16100 + int(rand(100));


# Start up server
my @pids;
my $pid = fork();
if ($pid) {
	# Parent
	push @pids, $pid;
	# give our agent some time to startup
	sleep(1);
} else {
	# Child
	#print "child\n";

	print "Please contact SNMP at: $port_snmp\n";
	close(STDERR); # Coment out to debug snmpd problems (most errors sent there are OK)
	exec("snmpd -c tests/conf/snmpd.conf -C -f -r udp:$port_snmp");
}

END { 
	foreach my $pid (@pids) {
		if ($pid) { print "Killing $pid\n"; kill "INT", $pid } 
	}
};

if ($ARGV[0] && $ARGV[0] eq "-d") {
	while (1) {
		sleep 100;
	}
}

# We should merge that with $ENV{'NPTEST_CACHE'}, use one dir for all test data
$ENV{'NAGIOS_PLUGIN_STATE_DIRECTORY'} ||= "/var/tmp";

my $tests = 41;
if (-x "./check_snmp") {
	plan tests => $tests;
} else {
	plan skip_all => "No check_snmp compiled";
}

my $res;

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.0");
cmp_ok( $res->return_code, '==', 0, "Exit OK when querying a multi-line string" );
like($res->output, '/^SNMP OK - /', "String contains SNMP OK");
like($res->output, '/'.quotemeta('SNMP OK - Cisco Internetwork Operating System Software | 
.1.3.6.1.4.1.8072.3.2.67.0:
"Cisco Internetwork Operating System Software
IOS (tm) Catalyst 4000 \"L3\" Switch Software (cat4000-I9K91S-M), Version
12.2(20)EWA, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2004 by cisco Systems, Inc.
"').'/m', "String contains all lines");

# sysContact.0 is "Alice" (from our snmpd.conf)
$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.0 -o sysContact.0 -o .1.3.6.1.4.1.8072.3.2.67.1");
cmp_ok( $res->return_code, '==', 0, "Exit OK when querying multi-line OIDs" );
like($res->output, '/^SNMP OK - /', "String contains SNMP OK");
like($res->output, '/'.quotemeta('SNMP OK - Cisco Internetwork Operating System Software Alice Kisco Outernetwork Oserating Gystem Totware | 
.1.3.6.1.4.1.8072.3.2.67.0:
"Cisco Internetwork Operating System Software
IOS (tm) Catalyst 4000 \"L3\" Switch Software (cat4000-I9K91S-M), Version
12.2(20)EWA, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2004 by cisco Systems, Inc.
"
.1.3.6.1.4.1.8072.3.2.67.1:
"Kisco Outernetwork Oserating Gystem Totware
Copyleft (c) 2400-2689 by kisco Systrems, Inc."').'/m', "String contains all lines with multiple OIDs");

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.2");
like($res->output, '/'.quotemeta('SNMP OK - This should not confuse check_snmp \"parser\" | 
.1.3.6.1.4.1.8072.3.2.67.2:
"This should not confuse check_snmp \"parser\"
into thinking there is no 2nd line"').'/m', "Attempt to confuse parser No.1");

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.3");
like($res->output, '/'.quotemeta('SNMP OK - It\'s getting even harder if the line | 
.1.3.6.1.4.1.8072.3.2.67.3:
"It\'s getting even harder if the line
ends with with this: C:\\\\"').'/m', "Attempt to confuse parser No.2");

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.4");
like($res->output, '/'.quotemeta('SNMP OK - And now have fun with with this: \"C:\\\\\" | 
.1.3.6.1.4.1.8072.3.2.67.4:
"And now have fun with with this: \"C:\\\\\"
because we\'re not done yet!"').'/m', "Attempt to confuse parser No.3");

system("rm -f ".$ENV{'NAGIOS_PLUGIN_STATE_DIRECTORY'}."/check_snmp/*");
$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10 --rate -w 600" );
is($res->return_code, 0, "Returns OK");
is($res->output, "No previous data to calculate rate - assume okay");

# Need to sleep, otherwise duration=0
sleep 1;

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10 --rate -w 600" );
is($res->return_code, 1, "WARNING - due to going above rate calculation" );
is($res->output, "SNMP RATE WARNING - *666* | iso.3.6.1.4.1.8072.3.2.67.10=666 ");

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10 --rate -w 600" );
is($res->return_code, 3, "UNKNOWN - basically the divide by zero error" );
is($res->output, "Time duration between plugin calls is invalid");


$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10 --rate -l inoctets" );
is($res->return_code, 0, "OK for first call" );
is($res->output, "No previous data to calculate rate - assume okay" );

# Need to sleep, otherwise duration=0
sleep 1;

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10 --rate -l inoctets" );
is($res->return_code, 0, "OK as no thresholds" );
is($res->output, "SNMP RATE OK - inoctets 666 | inoctets=666 ", "Check label");

sleep 2;

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10 --rate -l inoctets" );
is($res->return_code, 0, "OK as no thresholds" );
is($res->output, "SNMP RATE OK - inoctets 333 | inoctets=333 ", "Check rate decreases due to longer interval");



$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10 --rate -l inoctets_per_minute --rate-multiplier=60" );
is($res->return_code, 0, "OK for first call" );
is($res->output, "No previous data to calculate rate - assume okay" );

# Need to sleep, otherwise duration=0
sleep 1;

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10 --rate -l inoctets_per_minute --rate-multiplier=60" );
is($res->return_code, 0, "OK as no thresholds" );
is($res->output, "SNMP RATE OK - inoctets_per_minute 39960 | inoctets_per_minute=39960 ", "Checking multiplier");


$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.11 -s '\"stringtests\"'" );
is($res->return_code, 0, "OK as string matches" );
is($res->output, 'SNMP OK - "stringtests" | ', "Good string match" );

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.11 -s ring" );
is($res->return_code, 2, "CRITICAL as string doesn't match (though is a substring)" );
is($res->output, 'SNMP CRITICAL - *"stringtests"* | ', "Failed string match" );

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.11 --invert-search -s '\"stringtests\"'" );
is($res->return_code, 2, "CRITICAL as string matches but inverted" );
is($res->output, 'SNMP CRITICAL - *"stringtests"* | ', "Inverted string match" );

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.11 --invert-search -s ring" );
is($res->return_code, 0, "OK as string doesn't match but inverted" );
is($res->output, 'SNMP OK - "stringtests" | ', "OK as inverted string no match" );

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.12" );
is($res->return_code, 0, "Numeric in string test" );
is($res->output, 'SNMP OK - 3.5 | iso.3.6.1.4.1.8072.3.2.67.12=3.5 ', "Check seen as numeric" );

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.12 -w 4:5" );
is($res->return_code, 1, "Numeric in string test" );
is($res->output, 'SNMP WARNING - *3.5* | iso.3.6.1.4.1.8072.3.2.67.12=3.5 ', "WARNING threshold checks for string masquerading as number" );

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.13" );
is($res->return_code, 0, "Not really numeric test" );
is($res->output, 'SNMP OK - "87.4startswithnumberbutshouldbestring" | ', "Check string with numeric start is still string" );

$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.14" );
is($res->return_code, 0, "Not really numeric test (trying best to fool it)" );
is($res->output, 'SNMP OK - "555\"I said\"" | ', "Check string with a double quote following is still a string (looks like the perl routine will always escape though)" );