require 'test/unit' require 'thread' require 'tmpdir' require_relative '../ruby/envutil' class TestQueue < Test::Unit::TestCase def test_queue grind(5, 1000, 15, Queue) end def test_sized_queue grind(5, 1000, 15, SizedQueue, 1000) end def grind(num_threads, num_objects, num_iterations, klass, *args) from_workers = klass.new(*args) to_workers = klass.new(*args) workers = (1..num_threads).map { Thread.new { while object = to_workers.pop from_workers.push object end } } Thread.new { num_iterations.times { num_objects.times { to_workers.push 99 } num_objects.times { from_workers.pop } } }.join num_threads.times { to_workers.push nil } workers.each { |t| t.join } assert_equal 0, from_workers.size assert_equal 0, to_workers.size end def test_sized_queue_initialize q = SizedQueue.new(1) assert_equal 1, q.max assert_raise(ArgumentError) { SizedQueue.new(0) } assert_raise(ArgumentError) { SizedQueue.new(-1) } end def test_sized_queue_assign_max q = SizedQueue.new(2) assert_equal(2, q.max) q.max = 1 assert_equal(1, q.max) assert_raise(ArgumentError) { q.max = 0 } assert_equal(1, q.max) assert_raise(ArgumentError) { q.max = -1 } assert_equal(1, q.max) end def test_queue_pop_interrupt q = Queue.new t1 = Thread.new { q.pop } sleep 0.01 until t1.stop? t1.kill.join assert_equal(0, q.num_waiting) end def test_sized_queue_pop_interrupt q = SizedQueue.new(1) t1 = Thread.new { q.pop } sleep 0.01 until t1.stop? t1.kill.join assert_equal(0, q.num_waiting) end def test_sized_queue_push_interrupt q = SizedQueue.new(1) q.push(1) t1 = Thread.new { q.push(2) } sleep 0.01 until t1.stop? t1.kill.join assert_equal(0, q.num_waiting) end def test_thr_kill bug5343 = '[ruby-core:39634]' Dir.mktmpdir {|d| timeout = 30 total_count = 250 begin assert_normal_exit(<<-"_eom", bug5343, {:timeout => timeout, :chdir=>d}) require "thread" #{total_count}.times do |i| open("test_thr_kill_count", "w") {|f| f.puts i } queue = Queue.new r, w = IO.pipe th = Thread.start { queue.push(nil) r.read 1 } queue.pop th.kill th.join end _eom rescue Timeout::Error count = File.read("#{d}/test_thr_kill_count").to_i flunk "only #{count}/#{total_count} done in #{timeout} seconds." end } end def test_queue_push_return_value q = Queue.new retval = q.push(1) assert_same q, retval end def test_queue_clear_return_value q = Queue.new retval = q.clear assert_same q, retval end def test_sized_queue_push_return_value q = SizedQueue.new(1) retval = q.push(1) assert_same q, retval end def test_sized_queue_clear_return_value q = SizedQueue.new(1) retval = q.clear assert_same q, retval end end