84 lines
2.2 KiB
Ruby
84 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::SidekiqMiddleware::MemoryKiller do
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subject { described_class.new }
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let(:pid) { 999 }
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let(:worker) { double(:worker, class: ProjectCacheWorker) }
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let(:job) { { 'jid' => 123 } }
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let(:queue) { 'test_queue' }
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def run
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thread = subject.call(worker, job, queue) { nil }
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thread&.join
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end
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before do
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allow(subject).to receive(:get_rss).and_return(10.kilobytes)
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allow(subject).to receive(:pid).and_return(pid)
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end
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context 'when MAX_RSS is set to 0' do
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before do
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stub_const("#{described_class}::MAX_RSS", 0)
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end
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it 'does nothing' do
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expect(subject).not_to receive(:sleep)
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run
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end
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end
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context 'when MAX_RSS is exceeded' do
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before do
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stub_const("#{described_class}::MAX_RSS", 5.kilobytes)
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end
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it 'sends the TSTP, TERM and KILL signals at expected times' do
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expect(subject).to receive(:sleep).with(15 * 60).ordered
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expect(Process).to receive(:kill).with('SIGTSTP', pid).ordered
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expect(subject).to receive(:sleep).with(30).ordered
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expect(Process).to receive(:kill).with('SIGTERM', pid).ordered
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expect(subject).to receive(:sleep).with(Sidekiq.options[:timeout] + 2).ordered
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expect(Process).to receive(:kill).with('SIGKILL', pid).ordered
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expect(Sidekiq.logger)
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.to receive(:warn).with(class: 'ProjectCacheWorker',
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message: anything,
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pid: pid,
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signal: anything).at_least(:once)
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run
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end
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it 'sends TSTP and TERM to the pid, but KILL to the pgroup, when running as process leader' do
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allow(Process).to receive(:getpgrp) { pid }
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allow(subject).to receive(:sleep)
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expect(Process).to receive(:kill).with('SIGTSTP', pid).ordered
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expect(Process).to receive(:kill).with('SIGTERM', pid).ordered
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expect(Process).to receive(:kill).with('SIGKILL', 0).ordered
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run
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end
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end
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context 'when MAX_RSS is not exceeded' do
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before do
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stub_const("#{described_class}::MAX_RSS", 15.kilobytes)
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end
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it 'does nothing' do
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expect(subject).not_to receive(:sleep)
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run
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end
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end
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end
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