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# encoding: UTF-8
require 'spec/helper/all'
describe EventMachine::Synchrony do
before do
EM::Synchrony.on_sleep
end
after do
EM::Synchrony.on_sleep
end
describe '#sleep' do
context 'outside synchrony' do
it 'does not call hook' do
EM::Synchrony.on_sleep { fail 'should not happen' }
expect { sleep(0.01) }.not_to raise_error
end
context 'with synchrony in another thread'do
before do
@thread = Thread.new do
EM.run do
sleep(0.5)
EM.stop
end
end
sleep(0.1)
end
after do
@thread.join
end
it 'does not call hook' do
EM::Synchrony.on_sleep { fail 'should not happen' }
expect { sleep(0.01) }.not_to raise_error
end
end
end
context 'within synchrony' do
around do |example|
EM.synchrony do
example.run
EM.next_tick { EM.stop }
end
end
context 'with no hook defined' do
it 'calls Kernel.sleep' do
expect(self).to receive(:sleep)
sleep(1)
end
end
context 'with hook defined' do
it 'executes the hook' do
called = 0
EM::Synchrony.on_sleep { called += 1 }
(1..10).each do |count|
sleep(1)
expect(called).to be count
end
end
it 'propagates exceptions' do
msg = 'expected exception'
EM::Synchrony.on_sleep { fail msg }
expect { sleep(1) }.to raise_error(RuntimeError, msg)
end
context "when calling 'sleep' in the hook" do
it 'calls the original sleep' do
sleep_time = 1.213234123412341454134512345
expect(self).to receive(:orig_sleep).with(sleep_time)
EM::Synchrony.on_sleep do |*args|
sleep(*args)
end
sleep(sleep_time)
end
end
end
end
end
end
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