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| | # -*- encoding: binary -*-
# Copyright (c) 2009 Eric Wong
# You can redistribute it and/or modify it under the same terms as Ruby 1.8 or
# the GPLv3
#
# Ensure we stay sane in the face of signals being sent to us
require 'test/test_helper'
include Unicorn
class Dd
def initialize(bs, count)
@count = count
@buf = ' ' * bs
end
def each(&block)
@count.times { yield @buf }
end
end
class SignalsTest < Test::Unit::TestCase
def setup
@bs = 1 * 1024 * 1024
@count = 100
@port = unused_port
@sock = Tempfile.new('unicorn.sock')
@tmp = Tempfile.new('unicorn.write')
@tmp.sync = true
File.unlink(@sock.path)
File.unlink(@tmp.path)
@server_opts = {
:listeners => [ "127.0.0.1:#@port", @sock.path ],
:after_fork => lambda { |server,worker|
trap(:HUP) { @tmp.syswrite('.') }
},
}
@server = nil
end
def teardown
reset_sig_handlers
end
def test_worker_dies_on_dead_master
pid = fork {
app = lambda { |env| [ 200, {'X-Pid' => "#$$" }, [] ] }
opts = @server_opts.merge(:timeout => 3)
redirect_test_io { HttpServer.new(app, opts).start.join }
}
wait_workers_ready("test_stderr.#{pid}.log", 1)
sock = TCPSocket.new('127.0.0.1', @port)
sock.syswrite("GET / HTTP/1.0\r\n\r\n")
buf = sock.readpartial(4096)
assert_nil sock.close
buf =~ /\bX-Pid: (\d+)\b/ or raise Exception
child = $1.to_i
wait_master_ready("test_stderr.#{pid}.log")
wait_workers_ready("test_stderr.#{pid}.log", 1)
Process.kill(:KILL, pid)
Process.waitpid(pid)
File.unlink("test_stderr.#{pid}.log", "test_stdout.#{pid}.log")
t0 = Time.now
assert child
assert t0
assert_raises(Errno::ESRCH) { loop { Process.kill(0, child); sleep 0.2 } }
assert((Time.now - t0) < 60)
end
def test_sleepy_kill
rd, wr = IO.pipe
pid = fork {
rd.close
app = lambda { |env| wr.syswrite('.'); sleep; [ 200, {}, [] ] }
redirect_test_io { HttpServer.new(app, @server_opts).start.join }
}
wr.close
wait_workers_ready("test_stderr.#{pid}.log", 1)
sock = TCPSocket.new('127.0.0.1', @port)
sock.syswrite("GET / HTTP/1.0\r\n\r\n")
buf = rd.readpartial(1)
wait_master_ready("test_stderr.#{pid}.log")
Process.kill(:INT, pid)
Process.waitpid(pid)
assert_equal '.', buf
buf = nil
assert_raises(EOFError,Errno::ECONNRESET,Errno::EPIPE,Errno::EINVAL,
Errno::EBADF) do
buf = sock.sysread(4096)
end
assert_nil buf
end
def test_timeout_slow_response
pid = fork {
app = lambda { |env| sleep }
opts = @server_opts.merge(:timeout => 3)
redirect_test_io { HttpServer.new(app, opts).start.join }
}
t0 = Time.now
wait_workers_ready("test_stderr.#{pid}.log", 1)
sock = TCPSocket.new('127.0.0.1', @port)
sock.syswrite("GET / HTTP/1.0\r\n\r\n")
buf = nil
assert_raises(EOFError,Errno::ECONNRESET,Errno::EPIPE,Errno::EINVAL,
Errno::EBADF) do
buf = sock.sysread(4096)
end
diff = Time.now - t0
assert_nil buf
assert diff > 1.0, "diff was #{diff.inspect}"
assert diff < 60.0
ensure
Process.kill(:TERM, pid) rescue nil
end
def test_response_write
app = lambda { |env|
[ 200, { 'Content-Type' => 'text/plain', 'X-Pid' => Process.pid.to_s },
Dd.new(@bs, @count) ]
}
redirect_test_io { @server = HttpServer.new(app, @server_opts).start }
wait_workers_ready("test_stderr.#{$$}.log", 1)
sock = TCPSocket.new('127.0.0.1', @port)
sock.syswrite("GET / HTTP/1.0\r\n\r\n")
buf = ''
header_len = pid = nil
buf = sock.sysread(16384, buf)
pid = buf[/\r\nX-Pid: (\d+)\r\n/, 1].to_i
header_len = buf[/\A(.+?\r\n\r\n)/m, 1].size
assert pid > 0, "pid not positive: #{pid.inspect}"
read = buf.size
size_before = @tmp.stat.size
assert_raises(EOFError,Errno::ECONNRESET,Errno::EPIPE,Errno::EINVAL,
Errno::EBADF) do
loop do
3.times { Process.kill(:HUP, pid) }
sock.sysread(16384, buf)
read += buf.size
3.times { Process.kill(:HUP, pid) }
end
end
redirect_test_io { @server.stop(true) }
# can't check for == since pending signals get merged
assert size_before < @tmp.stat.size
got = read - header_len
expect = @bs * @count
assert_equal(expect, got, "expect=#{expect} got=#{got}")
assert_nil sock.close
end
def test_request_read
app = lambda { |env|
while env['rack.input'].read(4096)
end
[ 200, {'Content-Type'=>'text/plain', 'X-Pid'=>Process.pid.to_s}, [] ]
}
redirect_test_io { @server = HttpServer.new(app, @server_opts).start }
wait_workers_ready("test_stderr.#{$$}.log", 1)
sock = TCPSocket.new('127.0.0.1', @port)
sock.syswrite("GET / HTTP/1.0\r\n\r\n")
pid = sock.sysread(4096)[/\r\nX-Pid: (\d+)\r\n/, 1].to_i
assert_nil sock.close
assert pid > 0, "pid not positive: #{pid.inspect}"
sock = TCPSocket.new('127.0.0.1', @port)
sock.syswrite("PUT / HTTP/1.0\r\n")
sock.syswrite("Content-Length: #{@bs * @count}\r\n\r\n")
1000.times { Process.kill(:HUP, pid) }
size_before = @tmp.stat.size
killer = fork { loop { Process.kill(:HUP, pid); sleep(0.0001) } }
buf = ' ' * @bs
@count.times { sock.syswrite(buf) }
Process.kill(:KILL, killer)
Process.waitpid2(killer)
redirect_test_io { @server.stop(true) }
# can't check for == since pending signals get merged
assert size_before < @tmp.stat.size
assert_equal pid, sock.sysread(4096)[/\r\nX-Pid: (\d+)\r\n/, 1].to_i
assert_nil sock.close
end
end
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