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050a895439
* Wake up join list within thread EC context. * Consume items from join list so that they are not re-executed. If `rb_fiber_scheduler_unblock` raises an exception, it can result in a segfault if `rb_threadptr_join_list_wakeup` is not within a valid EC. This change moves `rb_threadptr_join_list_wakeup` into the thread's top level EC which initially caused an infinite loop because on exception will retry. We explicitly remove items from the thread's join list to avoid this situation. * Verify the required scheduler interface. * Test several scheduler hooks methods with broken `unblock` implementation.
106 lines
1.8 KiB
Ruby
106 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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require 'test/unit'
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require_relative 'scheduler'
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class TestFiberScheduler < Test::Unit::TestCase
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def test_fiber_without_scheduler
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# Cannot create fiber without scheduler.
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assert_raise RuntimeError do
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Fiber.schedule do
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end
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end
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end
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def test_fiber_new
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f = Fiber.new{}
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refute f.blocking?
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end
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def test_fiber_new_with_options
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f = Fiber.new(blocking: true){}
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assert f.blocking?
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f = Fiber.new(blocking: false){}
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refute f.blocking?
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f = Fiber.new(pool: nil){}
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refute f.blocking?
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end
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def test_closed_at_thread_exit
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scheduler = Scheduler.new
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thread = Thread.new do
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Fiber.set_scheduler scheduler
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end
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thread.join
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assert scheduler.closed?
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end
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def test_closed_when_set_to_nil
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scheduler = Scheduler.new
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thread = Thread.new do
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Fiber.set_scheduler scheduler
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Fiber.set_scheduler nil
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assert scheduler.closed?
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end
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thread.join
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end
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def test_close_at_exit
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assert_in_out_err %W[-I#{__dir__} -], <<-RUBY, ['Running Fiber'], [], success: true
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require 'scheduler'
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scheduler = Scheduler.new
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Fiber.set_scheduler scheduler
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Fiber.schedule do
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sleep(0)
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puts "Running Fiber"
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end
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RUBY
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end
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def test_minimal_interface
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scheduler = Object.new
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def scheduler.block
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end
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def scheduler.unblock
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end
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def scheduler.io_wait
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end
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def scheduler.kernel_sleep
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end
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thread = Thread.new do
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Fiber.set_scheduler scheduler
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end
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thread.join
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end
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def test_current_scheduler
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thread = Thread.new do
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scheduler = Scheduler.new
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Fiber.set_scheduler scheduler
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assert Fiber.scheduler
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refute Fiber.current_scheduler
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Fiber.schedule do
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assert Fiber.current_scheduler
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end
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end
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thread.join
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end
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end
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