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| | # -*- encoding: binary -*-
require 'test/unit'
require 'posix_mq'
require 'thread'
require 'fcntl'
$stderr.sync = $stdout.sync = true
class Test_POSIX_MQ < Test::Unit::TestCase
HAVE_TO_IO = if POSIX_MQ.instance_methods.grep(/\Ato_io\z/).empty?
warn "POSIX_MQ#to_io not supported on this platform: #{RUBY_PLATFORM}"
false
else
true
end
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_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
interval = 0.01
@mq = POSIX_MQ.new(@path, :rw)
assert ! @mq.nonblock?
t0 = Time.now
assert_raises(Errno::ETIMEDOUT) { @mq.receive "", interval }
elapsed = Time.now - t0
assert elapsed > interval
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 { @mq.send "A", 1, interval }
t0 = Time.now
assert_raises(Errno::ETIMEDOUT) { @mq.send "B", 1, interval }
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_nil 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_nil @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_nil @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_nil @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 HAVE_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
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_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 HAVE_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 HAVE_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 HAVE_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 HAVE_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_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 } }
@mq << "hi"
assert_equal POSIX_MQ, q.pop.class
assert_equal "hi", @mq.receive.first
assert_nothing_raised { @mq.notify { |mq| q << "hi" } }
@mq << "bye"
assert_equal "hi", q.pop
end if POSIX_MQ.respond_to?(:notify)
def test_notify_thread
q = Queue.new
@mq = POSIX_MQ.new(@path, :rw)
@mq.notify_thread = thr = Thread.new { sleep }
assert thr.alive?
@mq.notify { |mq| q << Thread.current }
@mq << "."
x = q.pop
assert x.instance_of?(Thread)
assert Thread.current != x
assert ! thr.alive?
end if POSIX_MQ.respond_to?(:notify)
end
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