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# Copyright, 2018, by Samuel G. D. Williams. <http://www.codeotaku.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require_relative 'connection_context'
RSpec.describe Protocol::HTTP2::Connection do
include_context Protocol::HTTP2::Connection
it "can negotiate connection" do
first_server_frame = nil
first_client_frame = client.send_connection_preface do
first_server_frame = server.read_connection_preface([])
end
expect(first_client_frame).to be_kind_of Protocol::HTTP2::SettingsFrame
expect(first_client_frame).to_not be_acknowledgement
expect(first_server_frame).to be_kind_of Protocol::HTTP2::SettingsFrame
expect(first_server_frame).to_not be_acknowledgement
frame = client.read_frame
expect(frame).to be_kind_of Protocol::HTTP2::SettingsFrame
expect(frame).to be_acknowledgement
frame = server.read_frame
expect(frame).to be_kind_of Protocol::HTTP2::SettingsFrame
expect(frame).to be_acknowledgement
expect(client.state).to eq :open
expect(server.state).to eq :open
end
context Protocol::HTTP2::PingFrame do
before do
client.open!
server.open!
end
it "can send ping and receive pong" do
expect(server).to receive(:receive_ping).once.and_call_original
client.send_ping("12345678")
server.read_frame
expect(client).to receive(:receive_ping).once.and_call_original
client.read_frame
end
end
context Protocol::HTTP2::Stream do
before do
client.open!
server.open!
end
let(:request_data) {"Hello World!"}
let(:stream) {client.create_stream}
let(:request_headers) {[[':method', 'GET'], [':path', '/'], [':authority', 'localhost']]}
let(:response_headers) {[[':status', '200']]}
it "can create new stream and send response" do
stream.send_headers(nil, request_headers)
expect(stream.id).to eq 1
expect(server).to receive(:receive_headers).once.and_wrap_original do |method, frame|
headers = method.call(frame)
expect(headers).to be == request_headers
end
server.read_frame
expect(server.streams).to_not be_empty
expect(server.streams[1].state).to be :open
stream.send_data(request_data, Protocol::HTTP2::END_STREAM)
expect(stream.state).to eq :half_closed_local
expect(server).to receive(:receive_data).and_call_original
data_frame = server.read_frame
expect(data_frame.unpack).to be == request_data
expect(server.streams[1].state).to be :half_closed_remote
server.streams[1].send_headers(nil, response_headers, Protocol::HTTP2::END_STREAM)
expect(stream).to receive(:process_headers).once.and_wrap_original do |method, frame|
headers = method.call(frame)
expect(headers).to be == response_headers
end
client.read_frame
expect(stream.state).to eq :closed
expect(stream.remote_window.used).to eq data_frame.length
end
it "client can handle graceful shutdown" do
stream.send_headers(nil, request_headers, Protocol::HTTP2::END_STREAM)
# Establish request stream on server:
server.read_frame
# Graceful shutdown
server.send_goaway(0)
expect(client.read_frame).to be_a Protocol::HTTP2::GoawayFrame
expect(client.remote_stream_id).to be == 1
expect(client).to be_closed
expect(server.streams[1].state).to eq :half_closed_remote
server.streams[1].send_headers(nil, response_headers, Protocol::HTTP2::END_STREAM)
client.read_frame
expect(stream.state).to eq :closed
end
it "client can handle non-graceful shutdown" do
stream.send_headers(nil, request_headers, Protocol::HTTP2::END_STREAM)
# Establish request stream on server:
server.read_frame
# Send connection error to client:
server.send_goaway(1, "Bugger off!")
expect(stream).to receive(:close).and_call_original
expect do
client.read_frame
end.to raise_error(Protocol::HTTP2::GoawayError)
client.close
expect(client.remote_stream_id).to be == 1
expect(client).to be_closed
end
it "can stream data" do
stream.send_headers(nil, request_headers)
stream.send_data("A")
stream.send_data("B")
stream.send_data("C")
stream.send_data("", Protocol::HTTP2::END_STREAM)
frame = server.read_frame
expect(frame).to be_a(Protocol::HTTP2::HeadersFrame)
expect(stream.available_frame_size).to be >= 3
frame = server.read_frame
expect(frame).to be_a(Protocol::HTTP2::DataFrame)
expect(frame.unpack).to be == "A"
frame = server.read_frame
expect(frame).to be_a(Protocol::HTTP2::DataFrame)
expect(frame.unpack).to be == "B"
frame = server.read_frame
expect(frame).to be_a(Protocol::HTTP2::DataFrame)
expect(frame.unpack).to be == "C"
frame = server.read_frame
expect(frame).to be_a(Protocol::HTTP2::DataFrame)
expect(frame.unpack).to be == ""
expect(frame).to be_end_stream
end
end
end
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