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3e3080ef58
an unused thread. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41276 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
898 lines
20 KiB
Ruby
898 lines
20 KiB
Ruby
# -*- coding: us-ascii -*-
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require 'test/unit'
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require 'thread'
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require_relative 'envutil'
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class TestThread < Test::Unit::TestCase
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class Thread < ::Thread
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Threads = []
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def self.new(*)
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th = super
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Threads << th
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th
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end
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end
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def setup
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Thread::Threads.clear
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end
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def teardown
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Thread::Threads.each do |t|
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t.kill if t.alive?
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begin
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t.join
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rescue Exception
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end
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end
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end
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def test_main_thread_variable_in_enumerator
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assert_equal Thread.main, Thread.current
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Thread.current.thread_variable_set :foo, "bar"
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thread, value = Fiber.new {
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Fiber.yield [Thread.current, Thread.current.thread_variable_get(:foo)]
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}.resume
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assert_equal Thread.current, thread
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assert_equal Thread.current.thread_variable_get(:foo), value
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end
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def test_thread_variable_in_enumerator
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Thread.new {
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Thread.current.thread_variable_set :foo, "bar"
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thread, value = Fiber.new {
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Fiber.yield [Thread.current, Thread.current.thread_variable_get(:foo)]
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}.resume
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assert_equal Thread.current, thread
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assert_equal Thread.current.thread_variable_get(:foo), value
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}.join
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end
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def test_thread_variables
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assert_equal [], Thread.new { Thread.current.thread_variables }.join.value
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t = Thread.new {
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Thread.current.thread_variable_set(:foo, "bar")
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Thread.current.thread_variables
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}
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assert_equal [:foo], t.join.value
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end
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def test_thread_variable?
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refute Thread.new { Thread.current.thread_variable?("foo") }.join.value
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t = Thread.new {
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Thread.current.thread_variable_set("foo", "bar")
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}.join
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assert t.thread_variable?("foo")
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assert t.thread_variable?(:foo)
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refute t.thread_variable?(:bar)
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end
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def test_thread_variable_strings_and_symbols_are_the_same_key
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t = Thread.new {}.join
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t.thread_variable_set("foo", "bar")
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assert_equal "bar", t.thread_variable_get(:foo)
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end
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def test_thread_variable_frozen
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t = Thread.new { }.join
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t.freeze
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assert_raises(RuntimeError) do
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t.thread_variable_set(:foo, "bar")
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end
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end
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def test_mutex_synchronize
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m = Mutex.new
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r = 0
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max = 10
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(1..max).map{
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Thread.new{
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i=0
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while i<max*max
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i+=1
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m.synchronize{
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r += 1
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}
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end
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}
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}.each{|e|
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e.join
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}
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assert_equal(max * max * max, r)
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end
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def test_mutex_synchronize_yields_no_block_params
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bug8097 = '[ruby-core:53424] [Bug #8097]'
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assert_empty(Mutex.new.synchronize {|*params| break params}, bug8097)
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end
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def test_local_barrier
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dir = File.dirname(__FILE__)
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lbtest = File.join(dir, "lbtest.rb")
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$:.unshift File.join(File.dirname(dir), 'ruby')
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require 'envutil'
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$:.shift
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3.times {
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`#{EnvUtil.rubybin} #{lbtest}`
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assert_not_predicate($?, :coredump?, '[ruby-dev:30653]')
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}
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end
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def test_priority
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c1 = c2 = 0
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t1 = Thread.new { loop { c1 += 1 } }
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t1.priority = 3
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t2 = Thread.new { loop { c2 += 1 } }
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t2.priority = -3
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assert_equal(3, t1.priority)
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assert_equal(-3, t2.priority)
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sleep 0.5
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5.times do
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break if c1 > c2
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sleep 0.1
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end
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t1.kill
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t2.kill
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assert_operator(c1, :>, c2, "[ruby-dev:33124]") # not guaranteed
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end
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def test_new
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assert_raise(ThreadError) do
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Thread.new
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end
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t1 = Thread.new { sleep }
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assert_raise(ThreadError) do
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t1.instance_eval { initialize { } }
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end
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t2 = Thread.new(&method(:sleep).to_proc)
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assert_raise(ThreadError) do
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t2.instance_eval { initialize { } }
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end
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ensure
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t1.kill if t1
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t2.kill if t2
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end
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def test_join
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t = Thread.new { sleep }
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assert_nil(t.join(0.5))
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ensure
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t.kill if t
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end
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def test_join2
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t1 = Thread.new { sleep(1.5) }
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t2 = Thread.new do
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t1.join(1)
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end
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t3 = Thread.new do
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sleep 0.5
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t1.join
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end
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assert_nil(t2.value)
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assert_equal(t1, t3.value)
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ensure
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t1.kill if t1
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t2.kill if t2
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t3.kill if t3
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end
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def test_kill_main_thread
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assert_in_out_err([], <<-INPUT, %w(1), [])
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p 1
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Thread.kill Thread.current
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p 2
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INPUT
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end
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def test_kill_wrong_argument
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bug4367 = '[ruby-core:35086]'
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assert_raise(TypeError, bug4367) {
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Thread.kill(nil)
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}
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o = Object.new
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assert_raise(TypeError, bug4367) {
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Thread.kill(o)
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}
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end
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def test_kill_thread_subclass
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c = Class.new(Thread)
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t = c.new { sleep 10 }
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assert_nothing_raised { Thread.kill(t) }
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assert_equal(nil, t.value)
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end
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def test_exit
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s = 0
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Thread.new do
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s += 1
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Thread.exit
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s += 2
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end.join
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assert_equal(1, s)
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end
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def test_wakeup
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s = 0
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t = Thread.new do
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s += 1
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Thread.stop
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s += 1
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end
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sleep 0.5
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assert_equal(1, s)
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t.wakeup
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sleep 0.5
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assert_equal(2, s)
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assert_raise(ThreadError) { t.wakeup }
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ensure
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t.kill if t
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end
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def test_stop
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assert_in_out_err([], <<-INPUT, %w(2), [])
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begin
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Thread.stop
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p 1
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rescue ThreadError
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p 2
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end
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INPUT
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end
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def test_list
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assert_in_out_err([], <<-INPUT) do |r, e|
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t1 = Thread.new { sleep }
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Thread.pass
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t2 = Thread.new { loop { } }
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Thread.new { }.join
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p [Thread.current, t1, t2].map{|t| t.object_id }.sort
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p Thread.list.map{|t| t.object_id }.sort
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INPUT
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assert_equal(r.first, r.last)
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assert_equal([], e)
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end
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end
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def test_main
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assert_in_out_err([], <<-INPUT, %w(true false), [])
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p Thread.main == Thread.current
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Thread.new { p Thread.main == Thread.current }.join
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INPUT
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end
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def test_abort_on_exception
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assert_in_out_err([], <<-INPUT, %w(false 1), [])
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p Thread.abort_on_exception
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begin
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Thread.new { raise }
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sleep 0.5
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p 1
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rescue
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p 2
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end
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INPUT
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assert_in_out_err([], <<-INPUT, %w(true 2), [])
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Thread.abort_on_exception = true
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p Thread.abort_on_exception
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begin
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Thread.new { raise }
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sleep 0.5
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p 1
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rescue
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p 2
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end
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INPUT
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assert_in_out_err(%w(--disable-gems -d), <<-INPUT, %w(false 2), %r".+")
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p Thread.abort_on_exception
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begin
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Thread.new { raise }
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sleep 0.5
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p 1
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rescue
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p 2
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end
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INPUT
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assert_in_out_err([], <<-INPUT, %w(false true 2), [])
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p Thread.abort_on_exception
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begin
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t = Thread.new { sleep 0.5; raise }
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t.abort_on_exception = true
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p t.abort_on_exception
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sleep 1
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p 1
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rescue
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p 2
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end
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INPUT
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end
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def test_status_and_stop_p
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a = ::Thread.new { raise("die now") }
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b = Thread.new { Thread.stop }
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c = Thread.new { Thread.exit }
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e = Thread.current
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sleep 0.5
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assert_equal(nil, a.status)
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assert_predicate(a, :stop?)
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assert_equal("sleep", b.status)
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assert_predicate(b, :stop?)
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assert_equal(false, c.status)
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assert_match(/^#<TestThread::Thread:.* dead>$/, c.inspect)
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assert_predicate(c, :stop?)
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es1 = e.status
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es2 = e.stop?
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assert_equal(["run", false], [es1, es2])
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ensure
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a.kill if a
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b.kill if b
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c.kill if c
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end
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def test_safe_level
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t = Thread.new { $SAFE = 3; sleep }
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sleep 0.5
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assert_equal(0, Thread.current.safe_level)
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assert_equal(3, t.safe_level)
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ensure
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t.kill if t
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end
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def test_thread_local
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t = Thread.new { sleep }
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assert_equal(false, t.key?(:foo))
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t["foo"] = "foo"
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t["bar"] = "bar"
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t["baz"] = "baz"
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assert_equal(true, t.key?(:foo))
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assert_equal(true, t.key?("foo"))
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assert_equal(false, t.key?(:qux))
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assert_equal(false, t.key?("qux"))
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assert_equal([:foo, :bar, :baz], t.keys)
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ensure
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t.kill if t
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end
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def test_thread_local_security
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assert_raise(RuntimeError) do
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Thread.new do
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Thread.current[:foo] = :bar
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Thread.current.freeze
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Thread.current[:foo] = :baz
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end.join
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end
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end
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def test_select_wait
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assert_nil(IO.select(nil, nil, nil, 1))
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t = Thread.new do
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IO.select(nil, nil, nil, nil)
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end
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sleep 0.5
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t.kill
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end
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def test_mutex_deadlock
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m = Mutex.new
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m.synchronize do
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assert_raise(ThreadError) do
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m.synchronize do
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assert(false)
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end
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end
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end
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end
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def test_mutex_interrupt
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m = Mutex.new
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m.lock
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t = Thread.new do
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m.lock
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:foo
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end
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sleep 0.5
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t.kill
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assert_nil(t.value)
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end
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def test_mutex_illegal_unlock
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m = Mutex.new
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m.lock
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assert_raise(ThreadError) do
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Thread.new do
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m.unlock
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end.join
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end
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end
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def test_mutex_fifo_like_lock
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m1 = Mutex.new
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m2 = Mutex.new
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m1.lock
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m2.lock
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m1.unlock
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m2.unlock
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assert_equal(false, m1.locked?)
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assert_equal(false, m2.locked?)
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m3 = Mutex.new
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m1.lock
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m2.lock
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m3.lock
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m1.unlock
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m2.unlock
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m3.unlock
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assert_equal(false, m1.locked?)
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assert_equal(false, m2.locked?)
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assert_equal(false, m3.locked?)
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end
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def test_mutex_trylock
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m = Mutex.new
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assert_equal(true, m.try_lock)
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assert_equal(false, m.try_lock, '[ruby-core:20943]')
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Thread.new{
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assert_equal(false, m.try_lock)
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}.join
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m.unlock
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end
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def test_recursive_outer
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arr = []
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obj = Struct.new(:foo, :visited).new(arr, false)
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arr << obj
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def obj.hash
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self[:visited] = true
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super
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raise "recursive_outer should short circuit intermediate calls"
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end
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assert_nothing_raised {arr.hash}
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assert(obj[:visited], "obj.hash was not called")
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end
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def test_thread_instance_variable
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bug4389 = '[ruby-core:35192]'
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assert_in_out_err([], <<-INPUT, %w(), [], bug4389)
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class << Thread.current
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@data = :data
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end
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INPUT
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end
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def test_no_valid_cfp
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skip 'with win32ole, cannot run this testcase because win32ole redefines Thread#intialize' if defined?(WIN32OLE)
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bug5083 = '[ruby-dev:44208]'
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assert_equal([], Thread.new(&Module.method(:nesting)).value)
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error = assert_raise(RuntimeError) do
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Thread.new(:to_s, &Module.method(:undef_method)).join
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end
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assert_equal("Can't call on top of Fiber or Thread", error.message, bug5083)
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end
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def make_handle_interrupt_test_thread1 flag
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r = []
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ready_p = false
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th = Thread.new{
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begin
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Thread.handle_interrupt(RuntimeError => flag){
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begin
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ready_p = true
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sleep 0.5
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rescue
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r << :c1
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end
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}
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rescue
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r << :c2
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end
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}
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Thread.pass until ready_p
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th.raise
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begin
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th.join
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rescue
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r << :c3
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end
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r
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end
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def test_handle_interrupt
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[[:never, :c2],
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[:immediate, :c1],
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[:on_blocking, :c1]].each{|(flag, c)|
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assert_equal([flag, c], [flag] + make_handle_interrupt_test_thread1(flag))
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}
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# TODO: complex cases are needed.
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end
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def test_handle_interrupt_invalid_argument
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assert_raise(ArgumentError) {
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Thread.handle_interrupt(RuntimeError => :immediate) # no block
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}
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assert_raise(ArgumentError) {
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Thread.handle_interrupt(RuntimeError => :xyzzy) {}
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}
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assert_raise(TypeError) {
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Thread.handle_interrupt([]) {} # array
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}
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end
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def for_test_handle_interrupt_with_return
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Thread.handle_interrupt(Object => :never){
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Thread.current.raise RuntimeError.new("have to be rescured")
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return
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}
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rescue
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end
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def test_handle_interrupt_with_return
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assert_nothing_raised do
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for_test_handle_interrupt_with_return
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_dummy_for_check_ints=nil
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end
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end
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def test_handle_interrupt_with_break
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assert_nothing_raised do
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begin
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Thread.handle_interrupt(Object => :never){
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Thread.current.raise RuntimeError.new("have to be rescured")
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break
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}
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rescue
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end
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_dummy_for_check_ints=nil
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end
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end
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def test_handle_interrupt_blocking
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r=:ng
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e=Class.new(Exception)
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th_s = Thread.current
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begin
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th = Thread.start{
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Thread.handle_interrupt(Object => :on_blocking){
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begin
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Thread.current.raise RuntimeError
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r=:ok
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sleep
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ensure
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th_s.raise e
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end
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}
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}
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sleep 1
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r=:ng
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th.raise RuntimeError
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th.join
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rescue e
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end
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assert_equal(:ok,r)
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end
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def test_handle_interrupt_and_io
|
|
assert_in_out_err([], <<-INPUT, %w(ok), [])
|
|
th_waiting = true
|
|
|
|
t = Thread.new {
|
|
Thread.handle_interrupt(RuntimeError => :on_blocking) {
|
|
nil while th_waiting
|
|
# async interrupt should be raised _before_ writing puts arguments
|
|
puts "ng"
|
|
}
|
|
}
|
|
|
|
sleep 0.1
|
|
t.raise RuntimeError
|
|
th_waiting = false
|
|
t.join rescue nil
|
|
puts "ok"
|
|
INPUT
|
|
end
|
|
|
|
def test_handle_interrupt_and_p
|
|
assert_in_out_err([], <<-INPUT, %w(:ok :ok), [])
|
|
th_waiting = true
|
|
|
|
t = Thread.new {
|
|
Thread.handle_interrupt(RuntimeError => :on_blocking) {
|
|
nil while th_waiting
|
|
# p shouldn't provide interruptible point
|
|
p :ok
|
|
p :ok
|
|
}
|
|
}
|
|
|
|
sleep 0.1
|
|
t.raise RuntimeError
|
|
th_waiting = false
|
|
t.join rescue nil
|
|
INPUT
|
|
end
|
|
|
|
def test_handle_interrupted?
|
|
q = Queue.new
|
|
Thread.handle_interrupt(RuntimeError => :never){
|
|
th = Thread.new{
|
|
q.push :e
|
|
begin
|
|
begin
|
|
sleep 0.5
|
|
rescue => e
|
|
q.push :ng1
|
|
end
|
|
begin
|
|
Thread.handle_interrupt(Object => :immediate){} if Thread.pending_interrupt?
|
|
rescue RuntimeError => e
|
|
q.push :ok
|
|
end
|
|
rescue => e
|
|
q.push :ng2
|
|
ensure
|
|
q.push :ng3
|
|
end
|
|
}
|
|
q.pop
|
|
th.raise
|
|
th.join
|
|
assert_equal(:ok, q.pop)
|
|
}
|
|
end
|
|
|
|
def test_thread_timer_and_ensure
|
|
assert_normal_exit(<<_eom, 'r36492', timeout: 3)
|
|
flag = false
|
|
t = Thread.new do
|
|
begin
|
|
sleep
|
|
ensure
|
|
1 until flag
|
|
end
|
|
end
|
|
|
|
Thread.pass until t.status == "sleep"
|
|
|
|
t.kill
|
|
t.alive? == true
|
|
flag = true
|
|
t.join
|
|
_eom
|
|
end
|
|
|
|
def test_uninitialized
|
|
c = Class.new(Thread)
|
|
c.class_eval { def initialize; end }
|
|
assert_raise(ThreadError) { c.new.start }
|
|
end
|
|
|
|
def test_backtrace
|
|
Thread.new{
|
|
assert_equal(Array, Thread.main.backtrace.class)
|
|
}.join
|
|
|
|
t = Thread.new{}
|
|
t.join
|
|
assert_equal(nil, t.backtrace)
|
|
end
|
|
|
|
def test_thread_timer_and_interrupt
|
|
bug5757 = '[ruby-dev:44985]'
|
|
t0 = Time.now.to_f
|
|
pid = nil
|
|
cmd = 'r,=IO.pipe; Thread.start {Thread.pass until Thread.main.stop?; puts; STDOUT.flush}; r.read'
|
|
opt = {}
|
|
opt[:new_pgroup] = true if /mswin|mingw/ =~ RUBY_PLATFORM
|
|
s, _err = EnvUtil.invoke_ruby(['-e', cmd], "", true, true, opt) do |in_p, out_p, err_p, cpid|
|
|
out_p.gets
|
|
pid = cpid
|
|
Process.kill(:SIGINT, pid)
|
|
Process.wait(pid)
|
|
[$?, err_p.read]
|
|
end
|
|
t1 = Time.now.to_f
|
|
assert_equal(pid, s.pid, bug5757)
|
|
assert_equal([false, true, false, Signal.list["INT"]],
|
|
[s.exited?, s.signaled?, s.stopped?, s.termsig],
|
|
"[s.exited?, s.signaled?, s.stopped?, s.termsig]")
|
|
assert_in_delta(t1 - t0, 1, 1, bug5757)
|
|
end
|
|
|
|
def test_thread_join_in_trap
|
|
assert_nothing_raised{
|
|
t = Thread.new{ sleep 0.2; Process.kill(:INT, $$) }
|
|
|
|
Signal.trap :INT do
|
|
t.join
|
|
end
|
|
|
|
t.join
|
|
}
|
|
|
|
assert_equal(:normal_end,
|
|
begin
|
|
t = Thread.new{ sleep 0.2; Process.kill(:INT, $$); :normal_end }
|
|
|
|
Signal.trap :INT do
|
|
t.value
|
|
end
|
|
t.value
|
|
end
|
|
)
|
|
end
|
|
|
|
def test_thread_join_current
|
|
assert_raises(ThreadError) do
|
|
Thread.current.join
|
|
end
|
|
end
|
|
|
|
def test_thread_join_main_thread
|
|
assert_raises(ThreadError) do
|
|
Thread.new(Thread.current) {|t|
|
|
t.join
|
|
}.join
|
|
end
|
|
end
|
|
|
|
def test_main_thread_status_at_exit
|
|
assert_in_out_err([], <<-INPUT, %w(false), [])
|
|
Thread.new(Thread.current) {|mth|
|
|
begin
|
|
sleep 0.1
|
|
ensure
|
|
p mth.alive?
|
|
end
|
|
}
|
|
INPUT
|
|
end
|
|
|
|
def test_thread_status_in_trap
|
|
# when running trap handler, Thread#status must show "run"
|
|
# Even though interrupted from sleeping function
|
|
assert_in_out_err([], <<-INPUT, %w(sleep run), [])
|
|
Signal.trap(:INT) {
|
|
puts Thread.current.status
|
|
}
|
|
|
|
Thread.new(Thread.current) {|mth|
|
|
sleep 0.01
|
|
puts mth.status
|
|
Process.kill(:INT, $$)
|
|
}
|
|
sleep 0.1
|
|
INPUT
|
|
end
|
|
|
|
# Bug #7450
|
|
def test_thread_status_raise_after_kill
|
|
ary = []
|
|
|
|
t = Thread.new {
|
|
begin
|
|
ary << Thread.current.status
|
|
sleep #1
|
|
ensure
|
|
begin
|
|
ary << Thread.current.status
|
|
sleep #2
|
|
ensure
|
|
ary << Thread.current.status
|
|
end
|
|
end
|
|
}
|
|
|
|
begin
|
|
sleep 0.01
|
|
t.kill # wake up sleep #1
|
|
sleep 0.01
|
|
t.raise "wakeup" # wake up sleep #2
|
|
sleep 0.01
|
|
assert_equal(ary, ["run", "aborting", "aborting"])
|
|
ensure
|
|
t.join rescue nil
|
|
end
|
|
end
|
|
|
|
def test_mutex_owned
|
|
mutex = Mutex.new
|
|
|
|
assert_equal(mutex.owned?, false)
|
|
mutex.synchronize {
|
|
# Now, I have the mutex
|
|
assert_equal(mutex.owned?, true)
|
|
}
|
|
assert_equal(mutex.owned?, false)
|
|
end
|
|
|
|
def test_mutex_owned2
|
|
begin
|
|
mutex = Mutex.new
|
|
th = Thread.new {
|
|
# lock forever
|
|
mutex.lock
|
|
sleep
|
|
}
|
|
|
|
sleep 0.01 until th.status == "sleep"
|
|
# acquired another thread.
|
|
assert_equal(mutex.locked?, true)
|
|
assert_equal(mutex.owned?, false)
|
|
ensure
|
|
th.kill if th
|
|
end
|
|
end
|
|
|
|
def invoke_rec script, vm_stack_size, machine_stack_size, use_length = true
|
|
env = {}
|
|
env['RUBY_THREAD_VM_STACK_SIZE'] = vm_stack_size.to_s if vm_stack_size
|
|
env['RUBY_THREAD_MACHINE_STACK_SIZE'] = machine_stack_size.to_s if machine_stack_size
|
|
out, = EnvUtil.invoke_ruby([env, '-e', script], '', true, true)
|
|
use_length ? out.length : out
|
|
end
|
|
|
|
def test_stack_size
|
|
h_default = eval(invoke_rec('p RubyVM::DEFAULT_PARAMS', nil, nil, false))
|
|
h_0 = eval(invoke_rec('p RubyVM::DEFAULT_PARAMS', 0, 0, false))
|
|
h_large = eval(invoke_rec('p RubyVM::DEFAULT_PARAMS', 1024 * 1024 * 10, 1024 * 1024 * 10, false))
|
|
|
|
assert_operator(h_default[:thread_vm_stack_size], :>, h_0[:thread_vm_stack_size],
|
|
"0 thread_vm_stack_size")
|
|
assert_operator(h_default[:thread_vm_stack_size], :<, h_large[:thread_vm_stack_size],
|
|
"large thread_vm_stack_size")
|
|
assert_operator(h_default[:thread_machine_stack_size], :>=, h_0[:thread_machine_stack_size],
|
|
"0 thread_machine_stack_size")
|
|
assert_operator(h_default[:thread_machine_stack_size], :<=, h_large[:thread_machine_stack_size],
|
|
"large thread_machine_stack_size")
|
|
|
|
# check VM machine stack size
|
|
script = 'def rec; print "."; STDOUT.flush; rec; end; rec'
|
|
size_default = invoke_rec script, nil, nil
|
|
assert_operator(size_default, :>, 0, "default size")
|
|
size_0 = invoke_rec script, 0, nil
|
|
assert_operator(size_default, :>, size_0, "0 size")
|
|
size_large = invoke_rec script, 1024 * 1024 * 10, nil
|
|
assert_operator(size_default, :<, size_large, "large size")
|
|
|
|
return if /mswin|mingw/ =~ RUBY_PLATFORM
|
|
|
|
# check machine stack size
|
|
# Note that machine stack size may not change size (depend on OSs)
|
|
script = 'def rec; print "."; STDOUT.flush; 1.times{1.times{1.times{rec}}}; end; Thread.new{rec}.join'
|
|
vm_stack_size = 1024 * 1024
|
|
size_default = invoke_rec script, vm_stack_size, nil
|
|
size_0 = invoke_rec script, vm_stack_size, 0
|
|
assert_operator(size_default, :>=, size_0, "0 size")
|
|
size_large = invoke_rec script, vm_stack_size, 1024 * 1024 * 10
|
|
assert_operator(size_default, :<=, size_large, "large size")
|
|
end
|
|
end
|