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# frozen_string_literal: true
# Released under the MIT License.
# Copyright, 2019-2024, by Samuel Williams.
require "protocol/http2/connection_context"
describe Protocol::HTTP2::Client do
include_context Protocol::HTTP2::ConnectionContext
let(:framer) {server.framer}
let(:settings) do
[[Protocol::HTTP2::Settings::HEADER_TABLE_SIZE, 1024]]
end
it "has an id of 0" do
expect(client.id).to be == 0
expect(client[0]).to be == client
end
it "can lookup stream by id" do
stream = client.create_stream
expect(client[stream.id]).to be == stream
end
it "should start in new state" do
expect(client.state).to be == :new
end
it "should send connection preface followed by settings frame" do
client.send_connection_preface(settings) do
expect(framer.read_connection_preface).to be == Protocol::HTTP2::CONNECTION_PREFACE
client_settings_frame = framer.read_frame
expect(client_settings_frame).to be_a Protocol::HTTP2::SettingsFrame
expect(client_settings_frame.unpack).to be == settings
# Fake (empty) server settings:
server_settings_frame = Protocol::HTTP2::SettingsFrame.new
server_settings_frame.pack
framer.write_frame(server_settings_frame)
framer.write_frame(client_settings_frame.acknowledge)
end
expect(client.state).to be == :new
client.read_frame
expect(client.state).to be == :open
expect(client.local_settings.header_table_size).to be == 1024
end
it "should fail if the server does not reply with settings frame" do
data_frame = Protocol::HTTP2::DataFrame.new
data_frame.pack("Hello, World!")
expect do
client.send_connection_preface(settings) do
framer.write_frame(data_frame)
end
end.to raise_exception(Protocol::HTTP2::ProtocolError, message: be =~ /First frame must be Protocol::HTTP2::SettingsFrame/)
end
it "can generate a stream id" do
id = client.next_stream_id
expect(id).to be == 1
expect(client).to be(:local_stream_id?, id)
expect(client).not.to be(:remote_stream_id?, id)
end
it "can't send connection preface in open state" do
client.open!
expect do
client.send_connection_preface(settings)
end.to raise_exception(Protocol::HTTP2::ProtocolError)
end
it "can't generate push promise stream" do
expect do
client.create_push_promise_stream
end.to raise_exception(Protocol::HTTP2::ProtocolError)
end
it "can't receive push promise stream for stream id 0" do
frame = Protocol::HTTP2::PushPromiseFrame.new
frame.pack(0, "Hello World")
expect do
client.receive_push_promise(frame)
end.to raise_exception(Protocol::HTTP2::ProtocolError)
end
end
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