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# frozen_string_literal: true
require 'protocol/hpack/compressor'
require 'protocol/hpack/decompressor'
require 'yaml'
RSpec.describe "RFC7541" do
def self.fixtures(mode)
Dir.glob(File.expand_path("rfc7541/*.yaml", __dir__)) do |path|
fixture = YAML::load_file(path)
if only = fixture[:only]
next unless only == mode
end
yield fixture
end
end
context Protocol::HPACK::Decompressor do
fixtures(:decompressor) do |example|
context example[:title] do
example[:streams].size.times do |nth|
context "request #{nth + 1}" do
let(:context) {Protocol::HPACK::Context.new(huffman: example[:huffman], table_size: example[:table_size])}
let(:buffer) {String.new.b}
let(:decompressor) {Protocol::HPACK::Decompressor.new(buffer, context)}
before do
(0...nth).each do |i|
buffer << [example[:streams][i][:wire].gsub(/\s/, '')].pack('H*')
decompressor.decode
end
end
let(:bytes) {[example[:streams][nth][:wire].gsub(/\s/, '')].pack('H*')}
subject! do
buffer << bytes
decompressor.decode
end
it 'should emit expected headers' do
expect(subject).to eq example[:streams][nth][:emitted]
end
it 'should update header table' do
expect(context.table).to eq example[:streams][nth][:table]
end
it 'should compute header table size' do
expect(context.current_table_size).to eq example[:streams][nth][:table_size]
end
end
end
end
end
end
context Protocol::HPACK::Compressor do
fixtures(:compressor) do |example|
context example[:title] do
example[:streams].size.times do |nth|
context "request #{nth + 1}" do
let(:context) {Protocol::HPACK::Context.new(huffman: example[:huffman], table_size: example[:table_size])}
let(:buffer) {String.new.b}
let(:compressor) {Protocol::HPACK::Compressor.new(buffer, context)}
before do
(0...nth).each do |i|
compressor.encode(example[:streams][i][:emitted])
end
end
subject! do
buffer.clear
compressor.encode(example[:streams][nth][:emitted])
buffer
end
it 'should emit expected bytes' do
expect(subject.unpack1('H*')).to eq example[:streams][nth][:wire].gsub(/\s/, '')
end
it 'should update header table' do
expect(context.table).to eq example[:streams][nth][:table]
end
it 'should compute header table size' do
expect(context.current_table_size).to eq example[:streams][nth][:table_size]
end
end
end
end
end
end
end
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