mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
6b9c2e9d77
Previous test depends on timing like:
<"[#<Thread:0x000008013413a0 run>, #<Thread:0x00000801341418 run>,
#<Thread:0x00000801364940 run>]"> expected but was
<"[#<Thread:0x000008013413a0 run>, #<Thread:0x00000801341418 sleep>,
#<Thread:0x00000801364940 run>]">.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26713 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
535 lines
10 KiB
Ruby
535 lines
10 KiB
Ruby
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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th.abort_on_exception = true
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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_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_condvar
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mutex = Mutex.new
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condvar = ConditionVariable.new
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result = []
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mutex.synchronize do
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t = Thread.new do
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mutex.synchronize do
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result << 1
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condvar.signal
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end
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end
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result << 0
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condvar.wait(mutex)
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result << 2
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t.join
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end
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assert_equal([0, 1, 2], result)
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end
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def test_condvar_wait_not_owner
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mutex = Mutex.new
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condvar = ConditionVariable.new
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assert_raise(ThreadError) { condvar.wait(mutex) }
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end
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def test_condvar_wait_exception_handling
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# Calling wait in the only thread running should raise a ThreadError of
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# 'stopping only thread'
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mutex = Mutex.new
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condvar = ConditionVariable.new
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locked = false
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thread = Thread.new do
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Thread.current.abort_on_exception = false
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mutex.synchronize do
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begin
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condvar.wait(mutex)
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rescue Exception
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locked = mutex.locked?
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raise
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end
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end
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end
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until thread.stop?
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sleep(0.1)
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end
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thread.raise Interrupt, "interrupt a dead condition variable"
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assert_raise(Interrupt) { thread.value }
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assert(locked)
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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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result = `#{EnvUtil.rubybin} #{lbtest}`
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assert(!$?.coredump?, '[ruby-dev:30653]')
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assert_equal("exit.", result[/.*\Z/], '[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 = -1
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t2 = Thread.new { loop { c2 += 1 } }
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t2.priority = -3
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assert_equal(-1, 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_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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t3 = 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(-d), <<-INPUT, %w(false 2), /.+/)
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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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d = Thread.new { sleep }
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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(a.stop?)
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assert_equal("sleep", b.status)
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assert(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(c.stop?)
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d.kill
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assert_equal(["aborting", false], [d.status, d.stop?])
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assert_equal(["run", false], [e.status, e.stop?])
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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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d.kill if d
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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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t = Thread.new { sleep }
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assert_raise(SecurityError) do
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Thread.new { $SAFE = 4; t[:foo] }.join
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end
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assert_raise(SecurityError) do
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Thread.new { $SAFE = 4; t[:foo] = :baz }.join
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end
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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])
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end
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end
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class TestThreadGroup < Test::Unit::TestCase
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def test_thread_init
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thgrp = ThreadGroup.new
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Thread.new{
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thgrp.add(Thread.current)
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assert_equal(thgrp, Thread.new{sleep 1}.group)
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}.join
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end
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def test_frozen_thgroup
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thgrp = ThreadGroup.new
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t = Thread.new{1}
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Thread.new{
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thgrp.add(Thread.current)
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thgrp.freeze
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assert_raise(ThreadError) do
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Thread.new{1}.join
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end
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assert_raise(ThreadError) do
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thgrp.add(t)
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end
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assert_raise(ThreadError) do
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ThreadGroup.new.add Thread.current
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end
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}.join
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t.join
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end
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def test_enclosed_thgroup
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thgrp = ThreadGroup.new
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assert_equal(false, thgrp.enclosed?)
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t = Thread.new{1}
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Thread.new{
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thgrp.add(Thread.current)
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thgrp.enclose
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assert_equal(true, thgrp.enclosed?)
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assert_nothing_raised do
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Thread.new{1}.join
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end
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assert_raise(ThreadError) do
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thgrp.add t
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end
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assert_raise(ThreadError) do
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ThreadGroup.new.add Thread.current
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end
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}.join
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t.join
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end
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def test_uninitialized
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c = Class.new(Thread)
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c.class_eval { def initialize; end }
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assert_raise(ThreadError) { c.new.start }
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end
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def test_backtrace
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Thread.new{
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assert_equal(Array, Thread.main.backtrace.class)
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}.join
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t = Thread.new{}
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t.join
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assert_equal(nil, t.backtrace)
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end
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end
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