343 lines
10 KiB
Ruby
343 lines
10 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Ci::UpdateBuildQueueService do
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let(:project) { create(:project, :repository) }
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let(:pipeline) { create(:ci_pipeline, project: project) }
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let(:build) { create(:ci_build, pipeline: pipeline) }
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describe 'pending builds queue push / pop' do
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describe '#push' do
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let(:transition) { double('transition') }
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before do
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allow(transition).to receive(:to).and_return('pending')
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allow(transition).to receive(:within_transaction).and_yield
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end
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context 'when pending build can be created' do
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it 'creates a new pending build in transaction' do
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queued = subject.push(build, transition)
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expect(queued).to eq build.id
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end
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it 'increments queue push metric' do
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metrics = spy('metrics')
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described_class.new(metrics).push(build, transition)
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expect(metrics)
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.to have_received(:increment_queue_operation)
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.with(:build_queue_push)
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end
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end
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context 'when invalid transition is detected' do
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it 'raises an error' do
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allow(transition).to receive(:to).and_return('created')
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expect { subject.push(build, transition) }
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.to raise_error(described_class::InvalidQueueTransition)
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end
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end
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context 'when duplicate entry exists' do
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before do
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create(:ci_pending_build, build: build, project: build.project)
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end
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it 'does nothing and returns build id' do
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queued = subject.push(build, transition)
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expect(queued).to eq build.id
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end
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end
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end
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describe '#pop' do
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let(:transition) { double('transition') }
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before do
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allow(transition).to receive(:from).and_return('pending')
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allow(transition).to receive(:within_transaction).and_yield
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end
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context 'when pending build exists' do
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before do
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create(:ci_pending_build, build: build, project: build.project)
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end
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it 'removes pending build in a transaction' do
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dequeued = subject.pop(build, transition)
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expect(dequeued).to eq build.id
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end
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it 'increments queue pop metric' do
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metrics = spy('metrics')
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described_class.new(metrics).pop(build, transition)
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expect(metrics)
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.to have_received(:increment_queue_operation)
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.with(:build_queue_pop)
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end
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end
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context 'when pending build does not exist' do
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it 'does nothing if there is no pending build to remove' do
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dequeued = subject.pop(build, transition)
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expect(dequeued).to be_nil
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end
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end
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context 'when invalid transition is detected' do
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it 'raises an error' do
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allow(transition).to receive(:from).and_return('created')
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expect { subject.pop(build, transition) }
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.to raise_error(described_class::InvalidQueueTransition)
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end
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end
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end
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describe '#remove!' do
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context 'when pending build exists' do
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before do
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create(:ci_pending_build, build: build, project: build.project)
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end
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it 'removes pending build in a transaction' do
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dequeued = subject.remove!(build)
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expect(dequeued).to eq build.id
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end
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end
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context 'when pending build does not exist' do
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it 'does nothing if there is no pending build to remove' do
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dequeued = subject.remove!(build)
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expect(dequeued).to be_nil
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end
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end
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end
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end
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describe 'shared runner builds tracking' do
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let(:runner) { create(:ci_runner, :instance_type) }
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let(:build) { create(:ci_build, runner: runner, pipeline: pipeline) }
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describe '#track' do
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let(:transition) { double('transition') }
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before do
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allow(transition).to receive(:to).and_return('running')
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allow(transition).to receive(:within_transaction).and_yield
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end
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context 'when a shared runner build can be tracked' do
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it 'creates a new shared runner build tracking entry' do
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build_id = subject.track(build, transition)
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expect(build_id).to eq build.id
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end
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it 'increments new shared runner build metric' do
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metrics = spy('metrics')
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described_class.new(metrics).track(build, transition)
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expect(metrics)
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.to have_received(:increment_queue_operation)
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.with(:shared_runner_build_new)
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end
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end
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context 'when invalid transition is detected' do
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it 'raises an error' do
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allow(transition).to receive(:to).and_return('pending')
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expect { subject.track(build, transition) }
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.to raise_error(described_class::InvalidQueueTransition)
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end
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end
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context 'when duplicate entry exists' do
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before do
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create(:ci_running_build, build: build, project: project, runner: runner)
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end
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it 'does nothing and returns build id' do
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build_id = subject.track(build, transition)
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expect(build_id).to eq build.id
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end
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end
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end
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describe '#untrack' do
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let(:transition) { double('transition') }
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before do
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allow(transition).to receive(:from).and_return('running')
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allow(transition).to receive(:within_transaction).and_yield
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end
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context 'when shared runner build tracking entry exists' do
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before do
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create(:ci_running_build, build: build, project: project, runner: runner)
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end
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it 'removes shared runner build' do
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build_id = subject.untrack(build, transition)
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expect(build_id).to eq build.id
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end
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it 'increments shared runner build done metric' do
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metrics = spy('metrics')
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described_class.new(metrics).untrack(build, transition)
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expect(metrics)
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.to have_received(:increment_queue_operation)
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.with(:shared_runner_build_done)
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end
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end
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context 'when tracking entry does not exist' do
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it 'does nothing if there is no tracking entry to remove' do
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build_id = subject.untrack(build, transition)
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expect(build_id).to be_nil
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end
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end
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context 'when invalid transition is detected' do
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it 'raises an error' do
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allow(transition).to receive(:from).and_return('pending')
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expect { subject.untrack(build, transition) }
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.to raise_error(described_class::InvalidQueueTransition)
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end
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end
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end
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end
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describe '#tick' do
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shared_examples 'refreshes runner' do
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it 'ticks runner queue value' do
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expect { subject.tick(build) }.to change { runner.ensure_runner_queue_value }
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end
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end
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shared_examples 'does not refresh runner' do
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it 'ticks runner queue value' do
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expect { subject.tick(build) }.not_to change { runner.ensure_runner_queue_value }
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end
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end
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shared_examples 'matching build' do
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context 'when there is a online runner that can pick build' do
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before do
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runner.update!(contacted_at: 30.minutes.ago)
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end
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it_behaves_like 'refreshes runner'
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it 'avoids running redundant queries' do
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expect(Ci::Runner).not_to receive(:owned_or_instance_wide)
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subject.tick(build)
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end
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end
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end
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shared_examples 'mismatching tags' do
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context 'when there is no runner that can pick build due to tag mismatch' do
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before do
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build.tag_list = [:docker]
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end
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it_behaves_like 'does not refresh runner'
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end
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end
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shared_examples 'recent runner queue' do
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context 'when there is runner with expired cache' do
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before do
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runner.update!(contacted_at: Ci::Runner.recent_queue_deadline)
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end
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it_behaves_like 'does not refresh runner'
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end
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end
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context 'when updating specific runners' do
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let(:runner) { create(:ci_runner, :project, projects: [project]) }
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it_behaves_like 'matching build'
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it_behaves_like 'mismatching tags'
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it_behaves_like 'recent runner queue'
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context 'when the runner is assigned to another project' do
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let(:another_project) { create(:project) }
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let(:runner) { create(:ci_runner, :project, projects: [another_project]) }
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it_behaves_like 'does not refresh runner'
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end
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end
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context 'when updating shared runners' do
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let(:runner) { create(:ci_runner, :instance) }
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it_behaves_like 'matching build'
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it_behaves_like 'mismatching tags'
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it_behaves_like 'recent runner queue'
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context 'when there is no runner that can pick build due to being disabled on project' do
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before do
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build.project.shared_runners_enabled = false
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end
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it_behaves_like 'does not refresh runner'
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end
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end
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context 'when updating group runners' do
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let(:group) { create(:group) }
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let(:project) { create(:project, group: group) }
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let(:runner) { create(:ci_runner, :group, groups: [group]) }
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it_behaves_like 'matching build'
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it_behaves_like 'mismatching tags'
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it_behaves_like 'recent runner queue'
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context 'when there is no runner that can pick build due to being disabled on project' do
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before do
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build.project.group_runners_enabled = false
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end
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it_behaves_like 'does not refresh runner'
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end
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end
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context 'avoids N+1 queries', :request_store do
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let!(:build) { create(:ci_build, pipeline: pipeline, tag_list: %w[a b]) }
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let!(:project_runner) { create(:ci_runner, :project, :online, projects: [project], tag_list: %w[a b c]) }
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it 'does execute the same amount of queries regardless of number of runners' do
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control_count = ActiveRecord::QueryRecorder.new { subject.tick(build) }.count
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create_list(:ci_runner, 10, :project, :online, projects: [project], tag_list: %w[b c d])
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expect { subject.tick(build) }.not_to exceed_all_query_limit(control_count)
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end
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end
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end
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end
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