summaryrefslogtreecommitdiff
path: root/test/fiber/test_scheduler.rb
blob: 72bde9fcc3a9824c590da6c717e9cd42d3acd929 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
# frozen_string_literal: true
require 'test/unit'
require_relative 'scheduler'

class TestFiberScheduler < Test::Unit::TestCase
  def test_fiber_without_scheduler
    # Cannot create fiber without scheduler.
    assert_raise RuntimeError do
      Fiber.schedule do
      end
    end
  end

  def test_fiber_new
    f = Fiber.new{}
    refute f.blocking?
  end

  def test_fiber_new_with_options
    f = Fiber.new(blocking: true){}
    assert f.blocking?

    f = Fiber.new(blocking: false){}
    refute f.blocking?

    f = Fiber.new(pool: nil){}
    refute f.blocking?
  end

  def test_closed_at_thread_exit
    scheduler = Scheduler.new

    thread = Thread.new do
      Fiber.set_scheduler scheduler
    end

    thread.join

    assert scheduler.closed?
  end

  def test_closed_when_set_to_nil
    scheduler = Scheduler.new

    thread = Thread.new do
      Fiber.set_scheduler scheduler
      Fiber.set_scheduler nil

      assert scheduler.closed?
    end

    thread.join
  end

  def test_close_at_exit
    assert_in_out_err %W[-I#{__dir__} -], <<-RUBY, ['Running Fiber'], [], success: true
    require 'scheduler'

    scheduler = Scheduler.new
    Fiber.set_scheduler scheduler

    Fiber.schedule do
      sleep(0)
      puts "Running Fiber"
    end
    RUBY
  end

  def test_optional_close
    thread = Thread.new do
      Fiber.set_scheduler Object.new
    end

    thread.join
  end
end