forked from igrigorik/em-synchrony
/
tcpsocket_spec.rb
487 lines (473 loc) · 14.4 KB
/
tcpsocket_spec.rb
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require "spec/helper/core"
module SendAndClose
def post_init
send_data "1234"
close_connection_after_writing
end
end
module SendAndTimedClose
def post_init
send_data "1234"
EM.add_timer(0.05) { self.close_connection_after_writing }
end
end
module SendAndKeepOpen
def post_init
send_data "1234"
end
end
def tcp_test(server_type, ops={}, &block)
EventMachine.synchrony do
ops = {:stop => true}.merge ops
EM::start_server('localhost', 12345, server_type)
@socket = EventMachine::Synchrony::TCPSocket.new 'localhost', 12345
@socket.close if ops[:close]
block.call
EM.stop if ops[:stop]
end
end
describe EventMachine::Synchrony::TCPSocket do
context '.new' do
context 'to an open TCP port on an resolvable host' do
it 'succeeds' do
EventMachine.synchrony do
EM::start_server('localhost', 12345)
@socket = EventMachine::Synchrony::TCPSocket.new 'localhost', 12345
@socket.should_not be_error
EM.stop
end
end
end
context 'to an unresolvable host' do
it 'raises SocketError' do
EventMachine.synchrony do
proc {
EventMachine::Synchrony::TCPSocket.new 'xxxyyyzzz', 12345
}.should raise_error(SocketError)
EM.stop
end
end
end
context 'to a closed TCP port' do
it 'raises Errno::ECONNREFUSED' do
EventMachine.synchrony do
proc {
EventMachine::Synchrony::TCPSocket.new 'localhost', 12345
}.should raise_error(Errno::ECONNREFUSED)
EM.stop
end
end
end
end
context '#closed?' do
context 'after calling #close' do
it 'returns true' do
tcp_test(SendAndKeepOpen, :close => true) do
@socket.should be_closed
end
end
end
context 'after the peer has closed the connection' do
context 'when we\'ve not yet read EOF' do
it 'returns false' do
tcp_test(SendAndClose) do
@socket.read(2).size.should eq 2
@socket.should_not be_closed
end
end
end
context 'when we\'ve read EOF' do
it 'returns false' do
tcp_test(SendAndClose) do
@socket.read(10).size.should < 10
@socket.read(10).should be_nil
@socket.should_not be_closed
end
end
end
end
end
context '#read' do
context 'with a length argument' do
context 'with a possitive length argument' do
context 'when the connection is open' do
context 'with greater or equal than the requested data buffered' do
it 'returns the requested data and no more' do
tcp_test(SendAndKeepOpen) do
@socket.read(2).size.should eq 2
@socket.read(1).size.should eq 1
end
end
end
context 'with less than the requested data buffered' do
it 'blocks' do
tcp_test(SendAndKeepOpen, :stop => false) do
@blocked = true
EM.next_tick { @blocked.should eq true; EM.next_tick { EM.stop } }
@socket.read(10)
@blocked = false
end
end
end
end
context 'when the peer has closed the connection' do
context 'with no data buffered' do
it 'returns nil' do
tcp_test(SendAndClose) do
@socket.read(4).size.should eq 4
@socket.read(1).should be_nil
end
end
end
context 'with less than the requested data buffered' do
it 'returns the buffered data' do
tcp_test(SendAndClose) do
@socket.read(50).size.should eq 4
end
end
end
context 'with greater or equal than the requested data buffered' do
it 'returns the requested data and no more' do
tcp_test(SendAndClose) do
@socket = EventMachine::Synchrony::TCPSocket.new 'localhost', 12345
@socket.read(2).size.should eq 2
end
end
end
end
context 'when we closed the connection' do
it 'raises IOError' do
tcp_test(SendAndKeepOpen, :close => true) do
proc {
@socket.read(4)
}.should raise_error(IOError)
end
end
end
end
context 'with a negative length argument' do
it 'raises ArgumentError' do
tcp_test(SendAndKeepOpen) do
proc {
@socket.read(-10)
}.should raise_error(ArgumentError)
end
end
end
context 'with a zero length argument' do
context 'when the connection is open' do
it 'returns an empty string' do
tcp_test(SendAndKeepOpen) do
@socket.read(0).should eq ""
end
end
end
context 'when the peer has closed the connection' do
it 'returns an empty string' do
tcp_test(SendAndClose) do
@socket.read(0).should eq ""
end
end
end
context 'when we closed the connection' do
it 'raises IOError' do
tcp_test(SendAndKeepOpen, :close => true) do
proc {
@socket.read(0)
}.should raise_error(IOError)
end
end
end
end
end
context 'without a length argument' do
context 'when the connection is open' do
it 'blocks until the peer closes the connection and returns all data sent' do
tcp_test(SendAndTimedClose) do
@blocked = true
EM.next_tick { @blocked.should eq true }
@socket.read(10).should eq '1234'
@blocked = false
end
end
end
context 'when the peer has closed the connection' do
context 'with no data buffered' do
it 'returns an empty string' do
tcp_test(SendAndClose) do
@socket.read()
@socket.read().should eq ""
end
end
end
context 'with data buffered' do
it 'returns the buffered data' do
tcp_test(SendAndClose) do
@socket.read().should eq "1234"
end
end
end
end
context 'when we closed the connection' do
it 'raises IOError' do
tcp_test(SendAndKeepOpen, :close => true) do
proc {
@socket.read()
}.should raise_error(IOError)
end
end
end
end
end
context '#read_nonblock' do
context 'with a positive length argument' do
context 'when the connection is open' do
context 'with greater or equal than the requested data buffered' do
it 'returns the requested data and no more' do
tcp_test(SendAndKeepOpen) do
@socket.read_nonblock(2).size.should eq 2
@socket.read_nonblock(1).size.should eq 1
end
end
end
context 'with less than the requested data buffered' do
it 'returns the available data' do
tcp_test(SendAndKeepOpen) do
@socket.read_nonblock(10).size.should eq 4
end
end
end
end
context 'when the peer has closed the connection' do
context 'with no data buffered' do
it 'raises EOFError' do
tcp_test(SendAndClose) do
@socket.read_nonblock(4).size.should eq 4
lambda {
@socket.read_nonblock(1)
}.should raise_error(EOFError)
end
end
end
context 'with less than the requested data buffered' do
it 'returns the buffered data' do
tcp_test(SendAndClose) do
@socket.read_nonblock(50).size.should eq 4
end
end
end
context 'with greater or equal than the requested data buffered' do
it 'returns the requested data and no more' do
tcp_test(SendAndClose) do
@socket = EventMachine::Synchrony::TCPSocket.new 'localhost', 12345
@socket.read_nonblock(2).size.should eq 2
end
end
end
end
context 'when we closed the connection' do
it 'raises IOError' do
tcp_test(SendAndKeepOpen, :close => true) do
proc {
@socket.read_nonblock(4)
}.should raise_error(IOError)
end
end
end
end
context 'with a negative length argument' do
it 'raises ArgumentError' do
tcp_test(SendAndKeepOpen) do
proc {
@socket.read_nonblock(-10)
}.should raise_error(ArgumentError)
end
end
end
context 'with a zero length argument' do
it 'raises ArgumentError' do
tcp_test(SendAndKeepOpen) do
proc {
@socket.read_nonblock(0)
}.should raise_error(ArgumentError)
end
end
end
end
context '#recv' do
context 'with a length argument' do
context 'with a possitive length argument' do
context 'when the connection is open' do
context 'with greater or equal than the requested data buffered' do
it 'returns the requested data and no more' do
tcp_test(SendAndKeepOpen) do
@socket.recv(2).size.should eq 2
@socket.recv(1).size.should eq 1
end
end
end
context 'with less than the requested data buffered' do
it 'return the buffered data' do
tcp_test(SendAndKeepOpen) do
@socket.recv(50).size.should eq 4
end
end
end
context 'with no buffered data' do
it 'blocks' do
tcp_test(SendAndKeepOpen, :stop => false) do
@socket.recv(10)
@blocked = true
EM.next_tick { @blocked.should eq true; EM.next_tick { EM.stop } }
@socket.recv(10)
@blocked = false
end
end
end
end
context 'when the peer has closed the connection' do
context 'with no data buffered' do
it 'returns an empty string' do
tcp_test(SendAndClose) do
@socket.read(4).size.should eq 4
@socket.recv(1).should eq ""
end
end
end
context 'with less than the requested data buffered' do
it 'returns the buffered data' do
tcp_test(SendAndClose) do
@socket.recv(50).size.should eq 4
end
end
end
context 'with greater or equal than the requested data buffered' do
it 'returns the requested data and no more' do
tcp_test(SendAndClose) do
@socket.recv(2).size.should eq 2
end
end
end
end
context 'when we closed the connection' do
it 'raises IOError' do
tcp_test(SendAndKeepOpen, :close => true) do
proc {
@socket.recv(4)
}.should raise_error(IOError)
end
end
end
end
context 'with a negative length argument' do
it 'raises ArgumentError' do
tcp_test(SendAndKeepOpen) do
proc {
@socket.recv(-10)
}.should raise_error(ArgumentError)
end
end
end
context 'with a zero length argument' do
context 'when the connection is open' do
it 'returns an empty string' do
tcp_test(SendAndKeepOpen) do
@socket.recv(0).should eq ""
end
end
end
context 'when the peer has closed the connection' do
it 'returns an empty string' do
tcp_test(SendAndClose) do
@socket.recv(0).should eq ""
end
end
end
context 'when we closed the connection' do
it 'raises IOError' do
tcp_test(SendAndKeepOpen, :close => true) do
proc {
@socket.recv(0)
}.should raise_error(IOError)
end
end
end
end
end
context 'without a length argument' do
it 'raises ArgumentError' do
tcp_test(SendAndKeepOpen) do
proc {
@socket.recv()
}.should raise_error(ArgumentError)
end
end
end
end
context '#write' do
context 'when the peer has closed the connection' do
it 'raises Errno::EPIPE' do
tcp_test(SendAndClose, :stop => false) do
EM.add_timer(0.01) do
proc {
@socket.write("foo")
}.should raise_error(Errno::EPIPE)
EM.stop
end
end
end
end
context 'when we closed the connection' do
it 'raises IOError' do
tcp_test(SendAndKeepOpen, :close => true) do
proc {
@socket.write("foo")
}.should raise_error(IOError)
end
end
end
end
context '#send' do
context 'when the peer has closed the connection' do
it 'raises Errno::EPIPE' do
tcp_test(SendAndClose, :stop => false) do
EM.add_timer(0.01) do
proc {
@socket.send("foo",0)
}.should raise_error(Errno::EPIPE)
EM.stop
end
end
end
end
context 'when we closed the connection' do
it 'raises IOError' do
tcp_test(SendAndKeepOpen, :close => true) do
proc {
@socket.send("foo",0)
}.should raise_error(IOError)
end
end
end
context 'without a flags argument' do
it 'raises ArgumentError' do
tcp_test(SendAndKeepOpen) do
proc {
@socket.send('foo')
}.should raise_error(ArgumentError)
end
end
end
end
context 'when wrapped in a connection pool' do
it 'accepts "send"' do
EventMachine.synchrony do
@socket = EventMachine::Synchrony::ConnectionPool.new(size: 1) do
EventMachine::Synchrony::TCPSocket.new 'eventmachine.rubyforge.org', 80
end
@socket.send("GET / HTTP1.1\r\n\r\n",0).class.should be(Fixnum)
EM.stop
end
end
end
end