114 lines
3.6 KiB
Ruby
114 lines
3.6 KiB
Ruby
# $Id: testsnmp.rb 231 2006-12-21 15:09:29Z blackhedd $
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require 'common'
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require 'net/snmp'
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class TestSnmp < Test::Unit::TestCase
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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"
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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"
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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"
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def test_invalid_packet
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data = "xxxx"
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assert_raise(Net::BER::BerError) {
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ary = data.read_ber(Net::SNMP::AsnSyntax)
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}
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end
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# The method String#read_ber! added by Net::BER consumes a well-formed BER
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# object from the head of a string. If it doesn't find a complete,
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# well-formed BER object, it returns nil and leaves the string unchanged.
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# If it finds an object, it returns the object and removes it from the
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# head of the string. This is good for handling partially-received data
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# streams, such as from network connections.
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def _test_consume_string
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data = "xxx"
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assert_equal(nil, data.read_ber!)
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assert_equal("xxx", data)
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data = SnmpGetRequest + "!!!"
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ary = data.read_ber!(Net::SNMP::AsnSyntax)
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assert_equal("!!!", data)
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assert ary.is_a?(Array)
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assert ary.is_a?(Net::BER::BerIdentifiedArray)
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end
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def test_weird_packet
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assert_raise(Net::SnmpPdu::Error) {
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Net::SnmpPdu.parse("aaaaaaaaaaaaaa")
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}
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end
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def test_get_request
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data = SnmpGetRequest.dup
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pkt = data.read_ber(Net::SNMP::AsnSyntax)
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assert pkt.is_a?(Net::BER::BerIdentifiedArray)
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assert_equal(48, pkt.ber_identifier) # Constructed [0], signifies GetRequest
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pdu = Net::SnmpPdu.parse(pkt)
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assert_equal(:get_request, pdu.pdu_type)
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assert_equal(16170, pdu.request_id) # whatever was in the test data. 16170 is not magic.
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assert_equal([[[1, 3, 6, 1, 2, 1, 1, 1, 0], nil]], pdu.variables)
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assert_equal(pdu.to_ber_string, SnmpGetRequest)
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end
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def test_empty_pdu
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pdu = Net::SnmpPdu.new
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assert_raise(Net::SnmpPdu::Error) { pdu.to_ber_string }
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end
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def test_malformations
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pdu = Net::SnmpPdu.new
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pdu.version = 0
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pdu.version = 2
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assert_raise(Net::SnmpPdu::Error) { pdu.version = 100 }
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pdu.pdu_type = :get_request
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pdu.pdu_type = :get_next_request
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pdu.pdu_type = :get_response
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pdu.pdu_type = :set_request
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pdu.pdu_type = :trap
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assert_raise(Net::SnmpPdu::Error) { pdu.pdu_type = :something_else }
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end
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def test_make_response
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pdu = Net::SnmpPdu.new
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pdu.version = 0
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pdu.community = "public"
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pdu.pdu_type = :get_response
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pdu.request_id = 9999
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pdu.error_status = 0
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pdu.error_index = 0
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pdu.add_variable_binding [1, 3, 6, 1, 2, 1, 1, 1, 0], "test"
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assert_equal(SnmpGetResponse, pdu.to_ber_string)
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end
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def test_make_bad_response
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pdu = Net::SnmpPdu.new
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assert_raise(Net::SnmpPdu::Error) {pdu.to_ber_string}
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pdu.pdu_type = :get_response
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pdu.request_id = 999
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pdu.to_ber_string
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# Not specifying variables doesn't create an error. (Maybe it should?)
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end
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def test_snmp_integers
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c32 = Net::SNMP::Counter32.new(100)
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assert_equal("A\001d", c32.to_ber)
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g32 = Net::SNMP::Gauge32.new(100)
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assert_equal("B\001d", g32.to_ber)
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t32 = Net::SNMP::TimeTicks32.new(100)
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assert_equal("C\001d", t32.to_ber)
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end
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def test_community
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data = SnmpGetRequestXXX.dup
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ary = data.read_ber(Net::SNMP::AsnSyntax)
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pdu = Net::SnmpPdu.parse(ary)
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assert_equal("xxxxxx", pdu.community)
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end
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end
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