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require 'test/unit'
require 'snmp/manager'
class EchoTransport
def initialize
end
def close
end
def send(data, host, port)
@data = data
end
def recv(max_bytes)
SNMP::Message.decode(@data).response.encode[0,max_bytes]
end
end
class TestManager < Test::Unit::TestCase
include SNMP
def setup
@manager = Manager.new(:Transport => EchoTransport)
end
def teardown
@manager.close
end
def test_defaults
assert_equal('localhost', @manager.config[:Host])
assert_equal(161, @manager.config[:Port])
assert_equal('public', @manager.config[:WriteCommunity])
end
def test_community
@manager = Manager.new(:WriteCommunity=>'private', :Transport => EchoTransport)
assert_equal('public', @manager.config[:Community])
assert_equal('private', @manager.config[:WriteCommunity])
@manager = Manager.new(:Community=>'test', :Transport => EchoTransport)
assert_equal('test', @manager.config[:Community])
assert_equal('test', @manager.config[:WriteCommunity])
@manager = Manager.new(:Community=>'test', :WriteCommunity=>'private',
:Transport => EchoTransport)
assert_equal('test', @manager.config[:Community])
assert_equal('private', @manager.config[:WriteCommunity])
end
def test_get
response = @manager.get("1.2.3.4")
assert_equal("1.2.3.4", response.varbind_list.first.name.to_s)
response = @manager.get([ObjectId.new("1.2.3.4"), ObjectId.new("1.2.3.4.5")])
assert_equal(ObjectId.new("1.2.3.4.5"), response.varbind_list[1].name)
end
def test_get_value
value = @manager.get_value("1.2.3.4")
assert_equal(Null, value)
value = @manager.get_value(["1.2.3.4"])
assert_equal([Null], value)
values = @manager.get_value(["1.2.3.4", "1.2.3.4.5"])
assert_equal(2, values.length)
assert_equal(Null, values[0])
assert_equal(Null, values[1])
end
def test_get_next
response = @manager.get_next("1.2.3.4")
assert_equal("1.2.3.4", response.varbind_list.first.name.to_s)
response = @manager.get_next([ObjectId.new("1.2.3.4"), ObjectId.new("1.2.3.4.5")])
assert_equal(ObjectId.new("1.2.3.4.5"), response.varbind_list[1].name)
end
def test_set
v0 = VarBind.new("1.3.6.1.3.1.1.1.0", OctetString.new("Hello1"))
v1 = VarBind.new("1.3.6.1.3.1.1.1.0", OctetString.new("Hello2"))
response = @manager.set([v0, v1])
assert_equal("Hello1", response.varbind_list[0].value.to_s)
assert_equal("Hello2", response.varbind_list[1].value.to_s)
end
def test_single_set
varbind = VarBind.new("1.3.6.1.3.1.1.1.0", OctetString.new("Hello"))
response = @manager.set(varbind)
assert_equal("Hello", response.varbind_list.first.value.to_s)
end
def test_get_bulk
response = @manager.get_bulk(1, 3, ["1.3.6.1.3.1.1.1.0", "1.3.6.1.3.1.1.2.0"])
assert_equal(:noError, response.error_status)
assert_equal(0, response.error_index)
assert_equal(2, response.varbind_list.length)
assert_equal("1.3.6.1.3.1.1.1.0", response.varbind_list[0].name.to_s)
assert_equal("1.3.6.1.3.1.1.2.0", response.varbind_list[1].name.to_s)
end
def test_walk
old_verbose = $VERBOSE
$VERBOSE = nil
@manager.walk("ifTable") { fail "Expected break from OID not increasing" }
ensure
$VERBOSE = old_verbose
end
def test_request_id
id = RequestId.new
fail if id.next < 0 or id.next >= 2**31
id.force_next(1)
assert_equal(1, id.next)
id.force_next(RequestId::MAX_REQUEST_ID-1)
assert_equal(RequestId::MAX_REQUEST_ID-1, id.next)
assert_raise(RuntimeError) { id.force_next(RequestId::MAX_REQUEST_ID) }
assert_raise(RuntimeError) { id.force_next(0) }
end
def test_trap_v1
manager = Manager.new(:Transport => EchoTransport, :Version => :SNMPv1)
sent_data = manager.trap_v1(
"enterprises.9",
"10.1.2.3",
:enterpriseSpecific,
42,
12345,
[VarBind.new("1.3.6.1.2.3.4", Integer.new(1))]
)
pdu = Message.decode(sent_data).pdu
assert_equal(ObjectId.new("1.3.6.1.4.1.9"), pdu.enterprise)
assert_equal(IpAddress.new("10.1.2.3"), pdu.agent_addr)
assert_equal(:enterpriseSpecific, pdu.generic_trap)
assert_equal(42, pdu.specific_trap)
assert_equal(TimeTicks.new(12345), pdu.timestamp)
assert_equal(1, pdu.vb_list.length)
end
def test_trap_v2
sent_data = @manager.trap_v2(1234, "1.3.6.1.2.3.4")
pdu = Message.decode(sent_data).pdu
assert_equal(1234, pdu.sys_up_time)
assert_equal("1.3.6.1.2.3.4", pdu.trap_oid.to_s)
assert_equal(2, pdu.vb_list.length)
sent_data = @manager.trap_v2(1234, "1.3.6.1.2.3.4", ["1.2.3", "1.4.5.6"])
pdu = Message.decode(sent_data).pdu
assert_equal(1234, pdu.sys_up_time)
assert_equal("1.3.6.1.2.3.4", pdu.trap_oid.to_s)
assert_equal(4, pdu.vb_list.length)
assert_equal("1.4.5.6", pdu.vb_list.last.name.to_s)
end
def test_inform
response = @manager.inform(1234, "1.3.6.1.2.3.4")
assert_equal(1234, response.vb_list[0].value)
assert_equal("1.3.6.1.2.3.4", response.vb_list[1].value.to_s)
assert(2, response.vb_list.length)
response = @manager.inform(1234, "1.3.6.1.2.3.4", ["1.2.3", "1.4.5.6"])
assert_equal(1234, response.vb_list[0].value)
assert_equal("1.3.6.1.2.3.4", response.vb_list[1].value.to_s)
assert(4, response.vb_list.length)
end
end
class TrapTestTransport
include SNMP
def initialize(host, port)
@count = 0
sys_up_varbind = VarBind.new(ObjectId.new("1.3.6.1.2.1.1.3.0"),
TimeTicks.new(1234))
trap_oid_varbind = VarBind.new(ObjectId.new("1.3.6.1.6.3.1.1.4.1.0"),
ObjectId.new("1.2.3"))
trap = SNMPv2_Trap.new(42, VarBindList.new([sys_up_varbind, trap_oid_varbind]))
message = Message.new(:SNMPv2c, "public", trap)
@data = message.encode
end
def close
end
def recvfrom(max_bytes)
@count += 1
case @count
when 1
return @data, "127.0.0.1"
when 2
Thread.exit
else
raise "Huh?"
end
end
end
class TestTrapListener < Test::Unit::TestCase
include SNMP
def test_init_no_handlers
init_called = false
m = TrapListener.new(:ServerTransport => TrapTestTransport) do |manager|
init_called = true
end
m.join
assert(init_called)
end
def test_v2c_handler
default_called = false
v2c_called = false
m = TrapListener.new(:ServerTransport => TrapTestTransport) do |manager|
manager.on_trap_default { default_called = true }
manager.on_trap_v2c { v2c_called = true }
end
m.join
assert(!default_called)
assert(v2c_called)
end
def test_oid_handler
default_called = false
v2c_called = false
oid_called = false
m = TrapListener.new(:ServerTransport => TrapTestTransport) do |manager|
manager.on_trap("1.2.3") do |trap|
assert_equal(ObjectId.new("1.2.3"), trap.trap_oid)
assert_equal("127.0.0.1", trap.source_ip)
oid_called = true
end
manager.on_trap_default { default_called = true }
manager.on_trap_v2c { v2c_called = true }
end
m.join
assert(!default_called)
assert(!v2c_called)
assert(oid_called)
end
def test_reject_wrong_community
default_called = false
m = TrapListener.new(
:Community => "test",
:ServerTransport => TrapTestTransport) do |manager|
manager.on_trap_default { default_called = true }
end
m.join
assert(!default_called)
end
end
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