mirror of https://github.com/grpc/grpc.git
Mark D. Roth
8 years ago
commit
0ed9fb50fc
18 changed files with 427 additions and 297 deletions
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# Copyright 2015, Google Inc. |
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# All rights reserved. |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions are |
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# met: |
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# |
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# * Redistributions of source code must retain the above copyright |
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# notice, this list of conditions and the following disclaimer. |
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# * Redistributions in binary form must reproduce the above |
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# copyright notice, this list of conditions and the following disclaimer |
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# in the documentation and/or other materials provided with the |
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# distribution. |
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# * Neither the name of Google Inc. nor the names of its |
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# contributors may be used to endorse or promote products derived from |
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# this software without specific prior written permission. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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require 'grpc' |
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describe GRPC::Pool do |
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Pool = GRPC::Pool |
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describe '#new' do |
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it 'raises if a non-positive size is used' do |
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expect { Pool.new(0) }.to raise_error |
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expect { Pool.new(-1) }.to raise_error |
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expect { Pool.new(Object.new) }.to raise_error |
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end |
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it 'is constructed OK with a positive size' do |
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expect { Pool.new(1) }.not_to raise_error |
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end |
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end |
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describe '#jobs_waiting' do |
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it 'at start, it is zero' do |
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p = Pool.new(1) |
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expect(p.jobs_waiting).to be(0) |
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end |
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it 'it increases, with each scheduled job if the pool is not running' do |
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p = Pool.new(1) |
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job = proc {} |
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expect(p.jobs_waiting).to be(0) |
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5.times do |i| |
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p.schedule(&job) |
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expect(p.jobs_waiting).to be(i + 1) |
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end |
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end |
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it 'it decreases as jobs are run' do |
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p = Pool.new(1) |
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job = proc {} |
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expect(p.jobs_waiting).to be(0) |
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3.times do |
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p.schedule(&job) |
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end |
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p.start |
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sleep 2 |
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expect(p.jobs_waiting).to be(0) |
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end |
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end |
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describe '#schedule' do |
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it 'return if the pool is already stopped' do |
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p = Pool.new(1) |
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p.stop |
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job = proc {} |
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expect { p.schedule(&job) }.to_not raise_error |
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end |
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it 'adds jobs that get run by the pool' do |
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p = Pool.new(1) |
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p.start |
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o, q = Object.new, Queue.new |
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job = proc { q.push(o) } |
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p.schedule(&job) |
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expect(q.pop).to be(o) |
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p.stop |
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end |
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end |
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describe '#stop' do |
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it 'works when there are no scheduled tasks' do |
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p = Pool.new(1) |
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expect { p.stop }.not_to raise_error |
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end |
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it 'stops jobs when there are long running jobs' do |
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p = Pool.new(1) |
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p.start |
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o, q = Object.new, Queue.new |
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job = proc do |
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sleep(5) # long running |
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q.push(o) |
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end |
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p.schedule(&job) |
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sleep(1) # should ensure the long job gets scheduled |
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expect { p.stop }.not_to raise_error |
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end |
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end |
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describe '#start' do |
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it 'runs pre-scheduled jobs' do |
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p = Pool.new(2) |
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o, q = Object.new, Queue.new |
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n = 5 # arbitrary |
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n.times { p.schedule(o, &q.method(:push)) } |
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p.start |
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n.times { expect(q.pop).to be(o) } |
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p.stop |
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end |
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it 'runs jobs as they are scheduled ' do |
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p = Pool.new(2) |
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o, q = Object.new, Queue.new |
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p.start |
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n = 5 # arbitrary |
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n.times do |
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p.schedule(o, &q.method(:push)) |
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expect(q.pop).to be(o) |
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end |
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p.stop |
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end |
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end |
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end |
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