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require 'em_test_helper'
class TestPause < Test::Unit::TestCase
if EM.respond_to? :pause_connection
def setup
@port = next_port
end
def teardown
assert(!EM.reactor_running?)
end
def test_pause_resume
server = nil
s_rx = c_rx = 0
test_server = Module.new do
define_method :post_init do
server = self
end
define_method :receive_data do |data|
s_rx += 1
EM.add_periodic_timer(0.01) { send_data 'hi' }
send_data 'hi'
# pause server, now no outgoing data will actually
# be sent and no more incoming data will be received
pause
end
end
test_client = Module.new do
def post_init
EM.add_periodic_timer(0.01) do
send_data 'hello'
end
end
define_method :receive_data do |data|
c_rx += 1
end
end
EM.run do
EM.start_server "127.0.0.1", @port, test_server
EM.connect "127.0.0.1", @port, test_client
EM.add_timer(0.05) do
assert_equal 1, s_rx
assert_equal 0, c_rx
assert server.paused?
# resume server, queued outgoing and incoming data will be flushed
server.resume
assert !server.paused?
EM.add_timer(0.05) do
assert server.paused?
assert s_rx > 1
assert c_rx > 0
EM.stop
end
end
end
end
def test_pause_in_receive_data
incoming = []
test_server = Module.new do
define_method(:receive_data) do |data|
incoming << data
pause
EM.add_timer(0.5){ close_connection }
end
define_method(:unbind) do
EM.stop
end
end
buf = 'a' * 1024
EM.run do
EM.start_server "127.0.0.1", @port, test_server
cli = EM.connect "127.0.0.1", @port
128.times do
cli.send_data buf
end
end
assert_equal 1, incoming.size
assert incoming[0].bytesize > buf.bytesize
assert incoming[0].bytesize < buf.bytesize * 128
end
else
warn "EM.pause_connection not implemented, skipping tests in #{__FILE__}"
# Because some rubies will complain if a TestCase class has no tests
def test_em_pause_connection_not_implemented
assert true
end
end
end
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