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# -*- coding: binary -*-
require 'spec_helper'
require 'packetfu'
module PacketFu
module PcapNG
describe EPB do
before(:each) { @epb = EPB.new }
it 'should have correct initialization values' do
expect(@epb).to be_a(EPB)
expect(@epb.endian).to eq(:little)
expect(@epb.type.to_i).to eq(PcapNG::EPB_TYPE.to_i)
expect(@epb.interface_id.to_i).to eq(0)
expect(@epb.tsh.to_i).to eq(0)
expect(@epb.tsl.to_i).to eq(0)
expect(@epb.cap_len.to_i).to eq(0)
expect(@epb.orig_len.to_i).to eq(0)
expect(@epb.block_len.to_i).to eq(EPB::MIN_SIZE)
expect(@epb.block_len2).to eq(@epb.block_len)
end
context 'when reading' do
it 'should accept a String' do
str = ::File.read(::File.join(__dir__, '../..', 'test', 'sample.pcapng'))[84, 112]
expect { @epb.read(str) }.to_not raise_error
expect(@epb.type.to_i).to eq(PcapNG::EPB_TYPE.to_i)
expect(@epb.block_len.to_i).to eq(112)
expect(@epb.interface_id.to_i).to eq(0)
expect(@epb.tsh.to_i).to eq(0x475ad)
expect(@epb.tsl.to_i).to eq(0xd392be6a)
expect(@epb.cap_len.to_i).to eq(78)
expect(@epb.orig_len.to_i).to eq(@epb.cap_len.to_i)
expect(@epb.has_options?).to be(false)
end
it 'should accept an IO' do
::File.open(::File.join(__dir__, '../..', 'test', 'sample.pcapng')) do |f|
f.seek(84, :CUR)
@epb.read f
end
expect(@epb.type.to_i).to eq(PcapNG::EPB_TYPE.to_i)
expect(@epb.block_len.to_i).to eq(112)
expect(@epb.interface_id.to_i).to eq(0)
expect(@epb.tsh.to_i).to eq(0x475ad)
expect(@epb.tsl.to_i).to eq(0xd392be6a)
expect(@epb.cap_len.to_i).to eq(78)
expect(@epb.orig_len.to_i).to eq(@epb.cap_len.to_i)
expect(@epb.has_options?).to be(false)
end
end
it 'should decode packet timestamp with default resolution' do
::File.open(::File.join(__dir__, '../..', 'test', 'sample.pcapng')) do |f|
f.seek(84, :CUR)
@epb.read f
end
expect(@epb.timestamp.round).to eq(Time.utc(2009, 10, 11, 19, 29, 6))
end
it 'should decode packet timestamp with interface resolution' do
::File.open(::File.join(__dir__, '../..', 'test', 'sample.pcapng')) do |f|
f.seek(84, :CUR)
@epb.read f
end
idb = IDB.new
::File.open(::File.join(__dir__, '../..', 'test', 'sample.pcapng')) do |f|
f.seek(52, :CUR)
idb.read f
end
idb << @epb
@epb.interface = idb
expect(@epb.timestamp.round).to eq(Time.utc(2009, 10, 11, 19, 29, 6))
end
end
end
end
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