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| | # -*- encoding: binary -*-
require 'test/unit'
require 'thread'
require 'fcntl'
$stderr.sync = $stdout.sync = true
require "dl"
begin
require "dl/func"
rescue LoadError
end
$-w = true
require 'posix_mq'
class Test_POSIX_MQ < Test::Unit::TestCase
POSIX_MQ.method_defined?(:to_io) or
warn "POSIX_MQ#to_io not supported on this platform: #{RUBY_PLATFORM}"
POSIX_MQ.method_defined?(:notify) or
warn "POSIX_MQ#notify not supported on this platform: #{RUBY_PLATFORM}"
def setup
@mq = nil
@path = "/posix_mq.rb.#{Time.now.to_i}.#$$.#{rand}"
end
def teardown
@mq or return
assert_equal @mq, @mq.unlink
assert ! @mq.closed?
assert_nil @mq.close
assert @mq.closed?
end
def test_open_with_null_byte
assert_raises(ArgumentError) { POSIX_MQ.open("/hello\0world", :rw) }
end
def test_unlink_with_null_byte
assert_raises(ArgumentError) { POSIX_MQ.open("/hello\0world", :rw) }
end
def test_gc
assert_nothing_raised do
2025.times { POSIX_MQ.new(@path, :rw) }
2025.times {
@mq = POSIX_MQ.new(@path, :rw)
@mq.to_io if @mq.respond_to?(:to_io)
}
end
end unless defined?RUBY_ENGINE && RUBY_ENGINE == "rbx"
def test_name_clobber_proof
@mq = POSIX_MQ.new(@path, :rw)
tmp = @mq.name
tmp.freeze
assert_nothing_raised { @mq.name.gsub!(/\A/, "foo") }
assert_equal tmp, @mq.name
assert tmp.object_id != @mq.name.object_id
end
def test_dup_clone
@mq = POSIX_MQ.new(@path, :rw)
dup = @mq.dup
assert_equal @mq.object_id, dup.object_id
clone = @mq.clone
assert_equal @mq.object_id, clone.object_id
end
def test_timed_receive_float
interval = 0.01
@mq = POSIX_MQ.new(@path, :rw)
assert ! @mq.nonblock?
t0 = Time.now
maybe_timeout { @mq.receive "", interval } or return
elapsed = Time.now - t0
assert_operator elapsed, :>, interval, elapsed.inspect
assert_operator elapsed, :<, 0.04, elapsed.inspect
end
def test_timed_receive_divmod
interval = Object.new
def interval.divmod(num)
num == 1 ? [ 0, 0.01 ] : nil
end
@mq = POSIX_MQ.new(@path, :rw)
assert ! @mq.nonblock?
t0 = Time.now
maybe_timeout { @mq.receive "", interval } or return
elapsed = Time.now - t0
assert_operator elapsed, :>=, 0.01, elapsed.inspect
assert_operator elapsed, :<=, 0.04, elapsed.inspect
end
def test_timed_receive_fixnum
interval = 1
@mq = POSIX_MQ.new(@path, :rw)
assert ! @mq.nonblock?
t0 = Time.now
maybe_timeout { @mq.receive "", interval } or return
elapsed = Time.now - t0
assert elapsed >= interval, elapsed.inspect
assert elapsed < 1.10, elapsed.inspect
end
def test_alarm_signal_safe
libc = alarm = nil
libcs = %w(libc.so.6 libc.so.0.1 libc.so.7 /usr/lib/libc.sl)
libcs.each do |name|
libc = DL::Handle.new(name) rescue next
if defined?(DL::Function)
alarm = libc["alarm"]
alarm = DL::CFunc.new(alarm, DL::TYPE_INT, "alarm")
alarm = DL::Function.new(alarm, [DL::TYPE_INT])
else
alarm = libc["alarm", "II"]
end
break
end
alarm or return warn "alarm() not found in #{libcs.inspect}"
alarms = 0
trap("ALRM") do
alarms += 1
Thread.new { @mq.send("HI") }
end
interval = 1
alarm.call interval
@mq = POSIX_MQ.new(@path, :rw)
assert ! @mq.nonblock?
t0 = Time.now
a = @mq.receive
elapsed = Time.now - t0
assert_equal(["HI", 0], a)
assert elapsed >= interval, elapsed.inspect
assert elapsed < 1.10, elapsed.inspect
assert_equal 1, alarms
end
def test_timed_send
interval = 0.01
@mq = POSIX_MQ.new(@path, :rw, 0666, POSIX_MQ::Attr[0, 1, 1, 0])
assert ! @mq.nonblock?
assert_nothing_raised {
begin
@mq.send "A", 1, interval
rescue NotImplementedError
return
end
}
t0 = Time.now
maybe_timeout { @mq.send "B", 1, interval } or return
elapsed = Time.now - t0
assert elapsed > interval
end
def test_open
POSIX_MQ.open(@path, IO::CREAT|IO::WRONLY, 0666) do |mq|
@mq = mq
assert mq.kind_of?(POSIX_MQ)
assert_equal @path, mq.name
assert_equal true, mq.send("HI", 0)
assert_equal 1, mq.attr.curmsgs
assert_nil mq.close
assert_raises(IOError) { mq.close }
end
assert @mq.closed?
@mq = nil
POSIX_MQ.unlink(@path)
end
def test_name
path = "" << @path.dup
path.freeze
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY, 0666
assert_equal path, @mq.name
end
def test_new_readonly
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY, 0666
rd = POSIX_MQ.new @path, IO::RDONLY
assert_equal @mq.name, rd.name
assert_nil rd.close
end
def test_send0_receive
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
assert_equal(@mq, @mq << "hello")
assert_equal [ "hello", 0 ], @mq.receive
end
def test_send0_chain
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
@mq << "hello" << "world"
assert_equal [ "hello", 0 ], @mq.receive
assert_equal [ "world", 0 ], @mq.receive
end
def test_shift
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
@mq << "hello"
assert_equal "hello", @mq.shift
end
def test_shift_buf
buf = ""
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
@mq << "hello"
assert_equal "hello", @mq.shift(buf)
assert_equal "hello", buf
end
def test_send_receive
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
assert_equal true, @mq.send("hello", 0)
assert_equal [ "hello", 0 ], @mq.receive
end
def test_send_receive_buf
buf = ""
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
assert_equal true, @mq.send("hello", 0)
assert_equal [ "hello", 0 ], @mq.receive(buf)
assert_equal "hello", buf
end
def test_send_receive_prio
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
assert_equal true, @mq.send("hello", 2)
assert_equal [ "hello", 2 ], @mq.receive
end
def test_getattr
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY, 0666
mq_attr = @mq.attr
assert_equal POSIX_MQ::Attr, mq_attr.class
assert mq_attr.flags.kind_of?(Integer)
assert mq_attr.maxmsg.kind_of?(Integer)
assert mq_attr.msgsize.kind_of?(Integer)
assert mq_attr.curmsgs.kind_of?(Integer)
end
def test_to_io
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
assert @mq.to_io.kind_of?(IO)
assert_nothing_raised { IO.select([@mq], nil, nil, 0) }
end if POSIX_MQ.method_defined?(:to_io)
def test_notify
rd, wr = IO.pipe
orig = trap(:USR1) { wr.syswrite('.') }
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
assert_nothing_raised { @mq.notify = :SIGUSR1 }
assert_nothing_raised { @mq.send("hello", 0) }
assert_equal [[rd], [], []], IO.select([rd], nil, nil, 10)
assert_equal '.', rd.sysread(1)
assert_nil(@mq.notify = nil)
assert_nothing_raised { @mq.send("hello", 0) }
assert_nil IO.select([rd], nil, nil, 0.1)
ensure
trap(:USR1, orig)
end if POSIX_MQ.method_defined?(:to_io)
def test_notify_none
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666
assert_nothing_raised { @mq.notify = false }
pid = fork do
begin
@mq.notify = :USR1
rescue Errno::EBUSY
exit 0
rescue => e
p e
end
exit! 1
end
_, status = Process.waitpid2(pid)
assert status.success?, status.inspect
end
def test_setattr
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY, 0666
mq_attr = POSIX_MQ::Attr.new(IO::NONBLOCK)
@mq.attr = mq_attr
assert_equal IO::NONBLOCK, @mq.attr.flags
assert mq_attr.flags.kind_of?(Integer)
mq_attr.flags = 0
@mq.attr = mq_attr
assert_equal 0, @mq.attr.flags
end
def test_setattr_fork
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY, 0666
mq_attr = POSIX_MQ::Attr.new(IO::NONBLOCK)
@mq.attr = mq_attr
assert @mq.nonblock?
pid = fork { @mq.nonblock = false }
assert Process.waitpid2(pid)[1].success?
assert ! @mq.nonblock?
end
def test_new_nonblocking
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY|IO::NONBLOCK, 0666
assert @mq.nonblock?
end
def test_new_blocking
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY, 0666
assert ! @mq.nonblock?
end
def test_nonblock_toggle
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY, 0666
assert ! @mq.nonblock?
@mq.nonblock = true
assert @mq.nonblock?
@mq.nonblock = false
assert ! @mq.nonblock?
assert_raises(ArgumentError) { @mq.nonblock = nil }
end
def test_new_sym_w
@mq = POSIX_MQ.new @path, :w
assert_equal IO::WRONLY, @mq.to_io.fcntl(Fcntl::F_GETFL)
end if POSIX_MQ.method_defined?(:to_io)
def test_new_sym_r
@mq = POSIX_MQ.new @path, :w
mq = nil
assert_nothing_raised { mq = POSIX_MQ.new @path, :r }
assert_equal IO::RDONLY, mq.to_io.fcntl(Fcntl::F_GETFL)
assert_nil mq.close
end if POSIX_MQ.method_defined?(:to_io)
def test_new_path_only
@mq = POSIX_MQ.new @path, :w
mq = nil
assert_nothing_raised { mq = POSIX_MQ.new @path }
assert_equal IO::RDONLY, mq.to_io.fcntl(Fcntl::F_GETFL)
assert_nil mq.close
end if POSIX_MQ.method_defined?(:to_io)
def test_new_sym_wr
@mq = POSIX_MQ.new @path, :rw
assert_equal IO::RDWR, @mq.to_io.fcntl(Fcntl::F_GETFL)
end if POSIX_MQ.method_defined?(:to_io)
def test_new_attr
mq_attr = POSIX_MQ::Attr.new(IO::NONBLOCK, 1, 1, 0)
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666, mq_attr
assert @mq.nonblock?
assert_equal mq_attr, @mq.attr
assert_raises(Errno::EAGAIN) { @mq.receive }
assert_raises(Errno::EMSGSIZE) { @mq << '..' }
assert_nothing_raised { @mq << '.' }
assert_equal [ '.', 0 ], @mq.receive
assert_nothing_raised { @mq << '.' }
assert_raises(Errno::EAGAIN) { @mq << '.' }
end
def test_try
mq_attr = POSIX_MQ::Attr.new(IO::NONBLOCK, 1, 1, 0)
@mq = POSIX_MQ.new @path, IO::CREAT|IO::RDWR, 0666, mq_attr
assert_nil @mq.tryreceive
assert_nil @mq.tryshift
assert_equal true, @mq.trysend("a")
assert_equal [ "a", 0 ], @mq.tryreceive
assert_equal true, @mq.trysend("b")
assert_equal "b", @mq.tryshift
assert_equal true, @mq.trysend("c")
assert_equal false, @mq.trysend("d")
end
def test_prio_max
min_posix_mq_prio_max = 31 # defined by POSIX
assert POSIX_MQ::PRIO_MAX >= min_posix_mq_prio_max
end
def test_open_max
assert POSIX_MQ::OPEN_MAX.kind_of?(Integer)
end
def test_notify_block_replace
q = Queue.new
@mq = POSIX_MQ.new(@path, :rw)
assert_nothing_raised { @mq.notify { |mq| q << mq } }
assert_nothing_raised { Process.waitpid2(fork { @mq << "hi" }) }
assert_equal @mq.object_id, q.pop.object_id
assert_equal "hi", @mq.receive.first
assert_nothing_raised { @mq.notify { |mq| q << "hi" } }
assert_nothing_raised { Process.waitpid2(fork { @mq << "bye" }) }
assert_equal "hi", q.pop
end if POSIX_MQ.method_defined?(:notify)
def test_notify_thread
q = Queue.new
@mq = POSIX_MQ.new(@path, :rw)
@mq.notify { |mq| q << Thread.current }
@mq << "."
x = q.pop
assert x.instance_of?(Thread)
assert Thread.current != x
end if POSIX_MQ.method_defined?(:notify)
def test_bad_open_mode
assert_raises(ArgumentError) { POSIX_MQ.new(@path, "rw") }
end
def test_bad_open_attr
assert_raises(TypeError) { POSIX_MQ.new(@path, :rw, 0666, [0, 1, 1, 0]) }
end
def test_bad_setattr
@mq = POSIX_MQ.new @path, IO::CREAT|IO::WRONLY, 0666
assert_raises(TypeError) { @mq.attr = {} }
assert_raises(TypeError) { @mq.attr = Struct.new(:a,:b,:c,:d).new }
end
def maybe_timeout
yield
assert_raises(exc) { } # FAIL
return true
rescue Errno::ETIMEDOUT => e
return true
rescue NotImplementedError => e
warn "E: #{e}"
return false
end
end
|