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# frozen_string_literal: true
# rubocop:todo all
require 'lite_spec_helper'
describe Mongo::DistinguishingSemaphore do
let(:semaphore) do
described_class.new
end
it 'waits until signaled' do
result = nil
consumer = Thread.new do
result = semaphore.wait(3)
end
# Context switch to start the thread
sleep 0.1
start_time = Mongo::Utils.monotonic_time
semaphore.signal
consumer.join
(Mongo::Utils.monotonic_time - start_time).should < 1
result.should be true
end
it 'waits until broadcast' do
result = nil
consumer = Thread.new do
result = semaphore.wait(3)
end
# Context switch to start the thread
sleep 0.1
start_time = Mongo::Utils.monotonic_time
semaphore.broadcast
consumer.join
(Mongo::Utils.monotonic_time - start_time).should < 1
result.should be true
end
it 'times out' do
result = nil
consumer = Thread.new do
result = semaphore.wait(2)
end
# Context switch to start the thread
sleep 0.1
start_time = Mongo::Utils.monotonic_time
consumer.join
(Mongo::Utils.monotonic_time - start_time).should > 1
result.should be false
end
end
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