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framing_spec.rb
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framing_spec.rb
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require 'helper'
describe EM::WebSocket::Framing03 do
class FramingContainer
include EM::WebSocket::Framing03
def <<(data)
@data << data
process_data(data)
end
def debug(*args); end
end
before :each do
@f = FramingContainer.new
@f.initialize_framing
end
describe "basic examples" do
it "connection close" do
@f.should_receive(:message).with(:close, '', '')
@f << 0b00000001
@f << 0b00000000
end
it "ping" do
@f.should_receive(:message).with(:ping, '', '')
@f << 0b00000010
@f << 0b00000000
end
it "pong" do
@f.should_receive(:message).with(:pong, '', '')
@f << 0b00000011
@f << 0b00000000
end
it "text" do
@f.should_receive(:message).with(:text, '', 'foo')
@f << 0b00000100
@f << 0b00000011
@f << 'foo'
end
it "Text in two frames" do
@f.should_receive(:message).with(:text, '', 'hello world')
@f << 0b10000100
@f << 0b00000110
@f << "hello "
@f << 0b00000000
@f << 0b00000101
@f << "world"
end
it "2 byte extended payload length text frame" do
data = 'a' * 256
@f.should_receive(:message).with(:text, '', data)
@f << 0b00000100 # Single frame, text
@f << 0b01111110 # Length 126 (so read 2 bytes)
@f << 0b00000001 # Two bytes in network byte order (256)
@f << 0b00000000
@f << data
end
end
# These examples are straight from the spec
# http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-03#section-4.6
describe "examples from the spec" do
it "a single-frame text message" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x04\x05Hello"
end
it "a fragmented text message" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x84\x03Hel"
@f << "\x00\x02lo"
end
it "Ping request and response" do
@f.should_receive(:message).with(:ping, '', 'Hello')
@f << "\x02\x05Hello"
end
it "256 bytes binary message in a single frame" do
data = "a"*256
@f.should_receive(:message).with(:binary, '', data)
@f << "\x05\x7E\x01\x00" + data
end
it "64KiB binary message in a single frame" do
data = "a"*65536
@f.should_receive(:message).with(:binary, '', data)
@f << "\x05\x7F\x00\x00\x00\x00\x00\x01\x00\x00" + data
end
end
describe "other tests" do
it "should accept a fragmented unmasked text message in 3 frames" do
@f.should_receive(:message).with(:text, '', 'Hello world')
@f << "\x84\x03Hel"
@f << "\x80\x02lo"
@f << "\x00\x06 world"
end
end
describe "error cases" do
it "should raise an exception on continuation frame without preceeding more frame" do
lambda {
@f << 0b00000000 # Single frame, continuation
@f << 0b00000001 # Length 1
@f << 'f'
}.should raise_error(EM::WebSocket::WebSocketError, 'Continuation frame not expected')
end
end
end
# These examples are straight from the spec
# http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-03#section-4.6
describe EM::WebSocket::Framing04 do
class FramingContainer04
include EM::WebSocket::Framing04
def <<(data)
@data << data
process_data(data)
end
def debug(*args); end
end
before :each do
@f = FramingContainer04.new
@f.initialize_framing
end
describe "examples from the spec" do
it "a single-frame text message" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x84\x05\x48\x65\x6c\x6c\x6f" # "\x84\x05Hello"
end
it "a fragmented text message" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x04\x03Hel"
@f << "\x80\x02lo"
end
it "Ping request" do
@f.should_receive(:message).with(:ping, '', 'Hello')
@f << "\x82\x05Hello"
end
it "a pong response" do
@f.should_receive(:message).with(:pong, '', 'Hello')
@f << "\x83\x05Hello"
end
it "256 bytes binary message in a single frame" do
data = "a"*256
@f.should_receive(:message).with(:binary, '', data)
@f << "\x85\x7E\x01\x00" + data
end
it "64KiB binary message in a single frame" do
data = "a"*65536
@f.should_receive(:message).with(:binary, '', data)
@f << "\x85\x7F\x00\x00\x00\x00\x00\x01\x00\x00" + data
end
end
describe "other tests" do
it "should accept a fragmented unmasked text message in 3 frames" do
@f.should_receive(:message).with(:text, '', 'Hello world')
@f << "\x04\x03Hel"
@f << "\x00\x02lo"
@f << "\x80\x06 world"
end
end
end
describe EM::WebSocket::Framing07 do
class FramingContainer07
include EM::WebSocket::Framing07
def <<(data)
@data << data
process_data(data)
end
def debug(*args); end
end
before :each do
@f = FramingContainer07.new
@f.initialize_framing
end
# These examples are straight from the spec
# http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-07#section-4.6
# NOTE I modified these to be compliant with the rule that client data must be masked
describe "server side" do
describe "examples from the spec" do
it "rejects a single-frame unmasked text message from the client" do
lambda {
@f << "\x81\x05\x48\x65\x6c\x6c\x6f" # "\x84\x05Hello"
}.should raise_error(EventMachine::WebSocket::WebSocketError, 'Data from client must be masked')
end
it "a single-frame masked text message" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x81\x85\x37\xfa\x21\x3d\x7f\x9f\x4d\x51\x58" # "\x84\x05Hello"
end
it "a fragmented masked text message" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x01\x83\x01\x01\x01\x01Idm" # with mask x01x01x01x01, Hello -> Idmmn
@f << "\x80\x82\x01\x01\x01\x01mn"
end
it "Ping request" do
@f.should_receive(:message).with(:ping, '', 'Hello')
@f << "\x89\x85\x01\x01\x01\x01Idmmn"
end
it "a pong response" do
@f.should_receive(:message).with(:pong, '', 'Hello')
@f << "\x8a\x85\x01\x01\x01\x01Idmmn"
end
it "256 bytes binary message in a single masked frame" do
data = "b"*256
masked_data = "c"*256
@f.should_receive(:message).with(:binary, '', data)
@f << "\x82\xFE\x01\x00\x01\x01\x01\x01" + masked_data
end
it "64KiB binary message in a single masked frame" do
data = "b"*65536
masked_data = "c"*65536
@f.should_receive(:message).with(:binary, '', data)
@f << "\x82\xFF\x00\x00\x00\x00\x00\x01\x00\x00\x01\x01\x01\x01" + masked_data
end
end
describe "other tests" do
it "should raise a DataError if an invalid frame type is requested" do
lambda {
# Opcode 3 is not supported by this draft
@f << "\x83\x85\x01\x01\x01\x01Idmmn"
}.should raise_error(EventMachine::WebSocket::DataError, "Unknown opcode")
end
it "should accept a fragmented masked text message in 3 frames" do
@f.should_receive(:message).with(:text, '', 'Hello world')
@f << "\x01\x83\x01\x01\x01\x01Idm"
@f << "\x00\x82\x01\x01\x01\x01mn"
@f << "\x80\x86\x01\x01\x01\x01\x21vnsme"
end
end
end
describe "client side" do
before do
@f.mask_outbound_messages = true
@f.require_masked_inbound_messages = false
end
describe "examples from the spec" do
it "accepts a single-frame unmasked text message from the client" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x81\x05\x48\x65\x6c\x6c\x6f" # "\x84\x05Hello"
end
it "a single-frame masked text message" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x81\x85\x37\xfa\x21\x3d\x7f\x9f\x4d\x51\x58" # "\x84\x05Hello"
end
it "a fragmented unmasked text message" do
@f.should_receive(:message).with(:text, '', 'Hello')
@f << "\x01\x03\Hel"
@f << "\x80\x02\lo"
end
it "Ping request" do
@f.should_receive(:message).with(:ping, '', 'Hello')
@f << "\x89\x05Hello"
end
it "a pong response" do
@f.should_receive(:message).with(:pong, '', 'Hello')
@f << "\x8a\x05Hello"
end
it "256 bytes binary message in a single unmasked frame" do
data = "a"*256
@f.should_receive(:message).with(:binary, '', data)
@f << "\x82\x7E\x01\x00" + data
end
it "64KiB binary message in a single unmasked frame" do
data = "a"*65536
@f.should_receive(:message).with(:binary, '', data)
@f << "\x82\x7F\x00\x00\x00\x00\x00\x01\x00\x00" + data
end
end
describe "other tests" do
it "should raise a DataError if an invalid frame type is requested" do
lambda {
# Opcode 3 is not supported by this draft
@f << "\x83\x05Hello"
}.should raise_error(EventMachine::WebSocket::DataError, "Unknown opcode")
end
it "should accept a fragmented unmasked text message in 3 frames" do
@f.should_receive(:message).with(:text, '', 'Hello world')
@f << "\x01\x03Hel"
@f << "\x00\x02lo"
@f << "\x80\x06 world"
end
end
end
end