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require 'em_test_helper'
class TestTimers < Test::Unit::TestCase
def test_timer_with_block
x = false
EM.run {
EM::Timer.new(0) {
x = true
EM.stop
}
}
assert x
end
def test_timer_with_proc
x = false
EM.run {
EM::Timer.new(0, proc {
x = true
EM.stop
})
}
assert x
end
def test_timer_cancel
assert_nothing_raised do
EM.run {
timer = EM::Timer.new(0.01) { flunk "Timer was not cancelled." }
timer.cancel
EM.add_timer(0.02) { EM.stop }
}
end
end
def test_periodic_timer
x = 0
EM.run {
EM::PeriodicTimer.new(0.01) do
x += 1
EM.stop if x == 4
end
}
assert_equal 4, x
end
def test_add_periodic_timer
x = 0
EM.run {
t = EM.add_periodic_timer(0.01) do
x += 1
EM.stop if x == 4
end
assert t.respond_to?(:cancel)
}
assert_equal 4, x
end
def test_periodic_timer_cancel
x = 0
EM.run {
pt = EM::PeriodicTimer.new(0.01) { x += 1 }
pt.cancel
EM::Timer.new(0.02) { EM.stop }
}
assert_equal 0, x
end
def test_add_periodic_timer_cancel
x = 0
EM.run {
pt = EM.add_periodic_timer(0.01) { x += 1 }
EM.cancel_timer(pt)
EM.add_timer(0.02) { EM.stop }
}
assert_equal 0, x
end
def test_periodic_timer_self_cancel
x = 0
EM.run {
pt = EM::PeriodicTimer.new(0) {
x += 1
if x == 4
pt.cancel
EM.stop
end
}
}
assert_equal 4, x
end
# This test is only applicable to compiled versions of the reactor.
# Pure ruby and java versions have no built-in limit on the number of outstanding timers.
unless [:pure_ruby, :java].include? EM.library_type
def test_timer_change_max_outstanding
defaults = EM.get_max_timers
EM.set_max_timers(100)
one_hundred_one_timers = lambda do
101.times { EM.add_timer(0.01) {} }
EM.stop
end
assert_raises(RuntimeError) do
EM.run( &one_hundred_one_timers )
end
EM.set_max_timers( 101 )
assert_nothing_raised do
EM.run( &one_hundred_one_timers )
end
ensure
EM.set_max_timers(defaults)
end
end
end
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