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require 'test/unit'
require 'thread'
require 'tmpdir'
require 'timeout'
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
def test_queue_thread_raise
q = Queue.new
th1 = Thread.new do
begin
q.pop
rescue RuntimeError
sleep
end
end
th2 = Thread.new do
sleep 0.1
q.pop
end
sleep 0.1
th1.raise
sleep 0.1
q << :s
assert_nothing_raised(TimeoutError) do
timeout(1) { th2.join }
end
end
end
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