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# -*- coding: utf-8 -*-
require File.expand_path(File.dirname(__FILE__) + '/../helper')
Dir.chdir(File.expand_path(File.dirname(__FILE__) + '/../core'))
$LOAD_PATH.push '.'
require 'utils'
miquire :lib, 'test_unit_extensions'
miquire :core, 'event_filter', 'event_listener'
class TC_EventFilter < Test::Unit::TestCase
def setup
Event.clear!
end
must "start listening" do
value = d_value = sum = d_sum = 0
increase = EventListener.new(Event[:increase]) { |v|
value += v
d_value -= v
sum += v
}
decrease = EventListener.new(Event[:decrease]) { |v|
value -= v
d_value += v
d_sum += v
}
EventFilter.new(Event[:increase]){ |v| [v * 2] }
Event[:increase].call(1)
Delayer.run while not Delayer.empty?
assert_equal(2, value)
assert_equal(-2, d_value)
Event[:decrease].call(2)
Event[:increase].call(3)
Delayer.run while not Delayer.empty?
assert_equal(6, value)
assert_equal(-6, d_value)
assert_equal(8, sum)
assert_equal(2, d_sum)
end
must "cancel" do
EventFilter.new(Event[:increase]){ |v| [v * 2] }
result = Event[:increase].filtering(1)
assert_equal([2], result)
EventFilter.new(Event[:increase]){ |v| [v * 2] }
result = Event[:increase].filtering(1)
assert_equal([4], result)
e1 = EventFilter.new(Event[:increase]){ |v| EventFilter.cancel! }
result = Event[:increase].filtering(1)
assert_equal(false, result)
e1.detach
EventFilter.new(Event[:increase]){ |v, &cont| cont.call([v*3]) }
result = Event[:increase].filtering(1)
assert_equal([12], result)
end
end
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