# Copyright, 2017, by Samuel G. D. Williams. <http://www.codeotaku.com>
# 
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# of this software and associated documentation files (the "Software"), to deal
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# furnished to do so, subject to the following conditions:
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RSpec.describe Async::Reactor do
	it "can run asynchronously" do
		outer_fiber = Fiber.current
		inner_fiber = nil
		
		described_class.run do |task|
			task.sleep(0)
			inner_fiber = Fiber.current
		end
		
		expect(inner_fiber).to_not be nil
		expect(outer_fiber).to_not be == inner_fiber
	end
	
	it "can be stopped" do
		state = nil
		
		subject.async do |task|
			state = :started
			task.sleep(10)
			state = :stopped
		end
		
		subject.async do |task|
			task.sleep(0.1)
			task.reactor.stop
		end
		
		subject.run
		
		expect(state).to be == :started
	end
	
	it "can't return" do
		expect do
			Async::Reactor.run do |task|
				return
			end
		end.to raise_error(LocalJumpError)
	end
	
	it "is closed after running" do
		reactor = Async::Reactor.run do
		end
		
		expect(reactor).to be_closed
		
		expect{reactor.run}.to raise_error(RuntimeError, /closed/)
	end
	
	describe '#async' do
		include_context Async::RSpec::Reactor
		
		it "can pass in arguments" do
			reactor.async(:arg) do |task, arg|
				expect(arg).to be == :arg
			end.wait
		end
		
		it "passes in the correct number of arguments" do
			reactor.async(:arg1, :arg2, :arg3) do |task, arg1, arg2, arg3|
				expect(arg1).to be == :arg1
				expect(arg2).to be == :arg2
				expect(arg3).to be == :arg3
			end.wait
		end
	end
	
	describe '#to_s' do
		it "shows stopped=" do
			expect(subject.to_s).to include "stopped"
		end
	end
end