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Contents
require 'spec_helper'
RSpec.describe RubySMB::Field::Stringz16 do
subject(:stringz16) { described_class.new }
it 'starts as an empty string' do
expect(stringz16).to eq ''
end
context 'with a value already set' do
let(:abcd) { described_class.new('ABCD') }
it 'should be UTF-16le' do
expect(abcd).to eq 'ABCD'.encode('utf-16le')
end
it 'should include the NULL terminator on binary output' do
expect(abcd.to_binary_s).to eq "A\x00B\x00C\x00D\x00\x00\x00"
end
end
context 'with a null terminator in the middle' do
let(:null_terminator) { described_class.new("ABCD\x00EFG") }
it 'drops everything after the null terminator' do
expect(null_terminator).to eq 'ABCD'.encode('utf-16le')
end
end
context 'when reading data in' do
it 'stops at the first double null byte' do
io = StringIO.new("A\x00B\x00C\x00D\x00\x00\x00E\x00F\x00")
stringz16.read(io)
expect(stringz16.to_binary_s).to eq "A\x00B\x00C\x00D\x00\x00\x00"
end
it 'handles a zero length string' do
io = StringIO.new("\x00\x00A\x00")
stringz16.read(io)
expect(stringz16).to eq ''
end
it 'fails if no null terminator is found' do
io = StringIO.new("A\x00B\x00C\x00D\x00")
expect { stringz16.read(io) }.to raise_error(EOFError)
end
it 'trims the string to #max_length and makes sure it ends with a null terminator' do
io = StringIO.new("A\x00B\x00C\x00D\x00")
str = described_class.new(max_length: 6)
expect(str.read(io).to_binary_s).to eq("A\x00B\x00\x00\x00".b)
end
it 'raises an exception when #max_length is not a multiple of two' do
io = StringIO.new("A\x00B\x00C\x00D\x00")
str = described_class.new(max_length: 5)
expect { str.read(io) }.to raise_error(ArgumentError)
end
end
end
Version data entries
48 entries across 48 versions & 1 rubygems