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# frozen_string_literal: false
require 'test/unit'
require 'sync'
require 'timeout'
class SyncTest < Test::Unit::TestCase
class Tester
include Sync_m
end
def test_sync_lock_and_wakeup
tester = Tester.new
tester.sync_lock(:EX)
t = Thread.new { tester.sync_lock(:EX) }
sleep 0.1 until t.stop?
t.wakeup
sleep 0.1 until t.stop?
assert_equal(tester.sync_waiting.uniq, tester.sync_waiting)
ensure
t.kill
t.join
end
def test_sync_upgrade_and_wakeup
tester = Tester.new
tester.sync_lock(:SH)
t = Thread.new do
tester.sync_lock(:SH)
tester.sync_lock(:EX)
end
sleep 0.1 until t.stop?
t.wakeup
sleep 0.1 until t.stop?
tester.sync_upgrade_waiting.each { |ary|
assert(!tester.sync_waiting.include?(ary[0]))
}
assert_equal(tester.sync_waiting.uniq, tester.sync_waiting)
assert_equal(tester.sync_waiting, [])
ensure
t.kill
t.join
end
def test_sync_lock_and_raise
tester= Tester.new
tester.sync_lock(:EX)
t = Thread.new {
assert_raise(RuntimeError) {
tester.sync_lock(:EX)
}
}
sleep 0.1 until t.stop?
# Disabled for Ruby 2.5. Should be enabled back on Ruby 2.7
# sleep 1 if RubyVM::MJIT.enabled? # t.stop? behaves unexpectedly with --jit-wait
t.raise
t.join
assert_equal(tester.sync_waiting.uniq, tester.sync_waiting)
assert_equal(tester.sync_waiting, [])
end
end
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