ruby-net-ldap/test/test_snmp.rb

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# $Id: testsnmp.rb 231 2006-12-21 15:09:29Z blackhedd $
require 'common'
require 'net/snmp'
class TestSnmp < Test::Unit::TestCase
SnmpGetRequest = "0'\002\001\000\004\006public\240\032\002\002?*\002\001\000\002\001\0000\0160\f\006\b+\006\001\002\001\001\001\000\005\000"
SnmpGetResponse = "0+\002\001\000\004\006public\242\036\002\002'\017\002\001\000\002\001\0000\0220\020\006\b+\006\001\002\001\001\001\000\004\004test"
SnmpGetRequestXXX = "0'\002\001\000\004\006xxxxxx\240\032\002\002?*\002\001\000\002\001\0000\0160\f\006\b+\006\001\002\001\001\001\000\005\000"
def setup
end
def teardown
end
def test_invalid_packet
data = "xxxx"
assert_raise( Net::BER::BerError ) {
ary = data.read_ber(Net::SNMP::AsnSyntax)
}
end
def test_weird_packet
assert_raise( Net::SnmpPdu::Error ) {
Net::SnmpPdu.parse("aaaaaaaaaaaaaa")
}
end
def test_get_request
data = SnmpGetRequest.dup
pkt = data.read_ber(Net::SNMP::AsnSyntax)
assert pkt.is_a?(Net::BER::BerIdentifiedArray)
assert_equal( 48, pkt.ber_identifier) # Constructed [0], signifies GetRequest
pdu = Net::SnmpPdu.parse(pkt)
assert_equal(:get_request, pdu.pdu_type )
assert_equal(16170, pdu.request_id ) # whatever was in the test data. 16170 is not magic.
assert_equal( [[[1,3,6,1,2,1,1,1,0],nil]], pdu.variables )
assert_equal( pdu.to_ber_string, SnmpGetRequest )
end
def test_empty_pdu
pdu = Net::SnmpPdu.new
assert_raise( Net::SnmpPdu::Error ) {
pdu.to_ber_string
}
end
def test_malformations
pdu = Net::SnmpPdu.new
pdu.version = 0
pdu.version = 2
assert_raise( Net::SnmpPdu::Error ) {
pdu.version = 100
}
pdu.pdu_type = :get_request
pdu.pdu_type = :get_next_request
pdu.pdu_type = :get_response
pdu.pdu_type = :set_request
pdu.pdu_type = :trap
assert_raise( Net::SnmpPdu::Error ) {
pdu.pdu_type = :something_else
}
end
def test_make_response
pdu = Net::SnmpPdu.new
pdu.version = 0
pdu.community = "public"
pdu.pdu_type = :get_response
pdu.request_id = 9999
pdu.error_status = 0
pdu.error_index = 0
pdu.add_variable_binding [1,3,6,1,2,1,1,1,0], "test"
assert_equal( SnmpGetResponse, pdu.to_ber_string )
end
def test_make_bad_response
pdu = Net::SnmpPdu.new
assert_raise(Net::SnmpPdu::Error) {pdu.to_ber_string}
pdu.pdu_type = :get_response
pdu.request_id = 999
pdu.to_ber_string
# Not specifying variables doesn't create an error. (Maybe it should?)
end
def test_snmp_integers
c32 = Net::SNMP::Counter32.new(100)
assert_equal( "A\001d", c32.to_ber )
g32 = Net::SNMP::Gauge32.new(100)
assert_equal( "B\001d", g32.to_ber )
t32 = Net::SNMP::TimeTicks32.new(100)
assert_equal( "C\001d", t32.to_ber )
end
def test_community
data = SnmpGetRequestXXX.dup
ary = data.read_ber(Net::SNMP::AsnSyntax)
pdu = Net::SnmpPdu.parse( ary )
assert_equal( "xxxxxx", pdu.community )
end
end