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# Copyright, 2018, by Samuel G. D. Williams. <http://www.codeotaku.com>
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

require 'async/semaphore'

RSpec.describe Async::Semaphore do
	include_context Async::RSpec::Reactor
	
	it 'should process work in batches' do
		semaphore = Async::Semaphore.new(4)
		current, maximum = 0, 0
		
		100.times.map do
			reactor.async do |task|
				semaphore.acquire do
					current += 1
					maximum = [current, maximum].max
					task.sleep(0.01)
					current -= 1
				end
			end
		end.collect(&:result)
		
		expect(maximum).to be == 4
	end
	
	it_behaves_like Async::Condition
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
async-1.9.0	spec/async/semaphore_spec.rb