153 lines
4.7 KiB
Ruby
153 lines
4.7 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::BackgroundMigration do
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let(:default_tracking_database) { described_class::DEFAULT_TRACKING_DATABASE }
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let(:coordinator) { described_class::JobCoordinator.for_tracking_database(default_tracking_database) }
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before do
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allow(described_class).to receive(:coordinator_for_database)
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.with(default_tracking_database)
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.and_return(coordinator)
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end
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describe '.queue' do
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it 'returns background migration worker queue' do
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expect(described_class.queue)
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.to eq BackgroundMigrationWorker.sidekiq_options['queue']
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end
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end
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describe '.steal' do
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context 'when the queue contains unprocessed jobs' do
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let(:queue) do
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[
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double(args: ['Foo', [10, 20]], klass: 'BackgroundMigrationWorker'),
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double(args: ['Bar', [20, 30]], klass: 'BackgroundMigrationWorker'),
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double(args: ['Foo', [20, 30]], klass: 'MergeWorker')
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]
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end
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before do
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allow(Sidekiq::Queue).to receive(:new)
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.with(coordinator.queue)
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.and_return(queue)
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end
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it 'uses the coordinator to steal jobs' do
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expect(queue[0]).to receive(:delete).and_return(true)
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expect(coordinator).to receive(:steal).with('Foo', retry_dead_jobs: false).and_call_original
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expect(coordinator).to receive(:perform).with('Foo', [10, 20])
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described_class.steal('Foo')
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end
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context 'when a custom predicate is given' do
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it 'steals jobs that match the predicate' do
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expect(queue[0]).to receive(:delete).and_return(true)
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expect(coordinator).to receive(:perform).with('Foo', [10, 20])
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described_class.steal('Foo') { |job| job.args.second.first == 10 && job.args.second.second == 20 }
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end
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it 'does not steal jobs that do not match the predicate' do
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expect(coordinator).not_to receive(:perform)
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expect(queue[0]).not_to receive(:delete)
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described_class.steal('Foo') { |(arg1, _)| arg1 == 5 }
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end
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end
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end
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context 'when retry_dead_jobs is true', :redis do
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let(:retry_queue) do
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[double(args: ['Object', [3]], klass: 'BackgroundMigrationWorker', delete: true)]
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end
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let(:dead_queue) do
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[double(args: ['Object', [4]], klass: 'BackgroundMigrationWorker', delete: true)]
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end
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before do
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allow(Sidekiq::RetrySet).to receive(:new).and_return(retry_queue)
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allow(Sidekiq::DeadSet).to receive(:new).and_return(dead_queue)
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end
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it 'steals from the dead and retry queue' do
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Sidekiq::Testing.disable! do
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expect(coordinator).to receive(:perform).with('Object', [1]).ordered
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expect(coordinator).to receive(:perform).with('Object', [2]).ordered
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expect(coordinator).to receive(:perform).with('Object', [3]).ordered
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expect(coordinator).to receive(:perform).with('Object', [4]).ordered
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BackgroundMigrationWorker.perform_async('Object', [2])
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BackgroundMigrationWorker.perform_in(10.minutes, 'Object', [1])
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described_class.steal('Object', retry_dead_jobs: true)
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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 '.perform' do
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let(:migration) { spy(:migration) }
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before do
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stub_const("#{described_class.name}::Foo", migration)
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end
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it 'uses the coordinator to perform a background migration' do
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expect(coordinator).to receive(:perform).with('Foo', [10, 20]).and_call_original
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expect(migration).to receive(:perform).with(10, 20).once
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described_class.perform('Foo', [10, 20])
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end
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end
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describe '.exists?', :redis do
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before do
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Sidekiq::Testing.disable! do
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MergeWorker.perform_async('Bar')
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BackgroundMigrationWorker.perform_async('Foo')
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end
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end
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it 'uses the coordinator to find if a job exists' do
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expect(coordinator).to receive(:exists?).with('Foo', []).and_call_original
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expect(described_class.exists?('Foo')).to eq(true)
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end
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it 'uses the coordinator to find a job does not exist' do
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expect(coordinator).to receive(:exists?).with('Bar', []).and_call_original
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expect(described_class.exists?('Bar')).to eq(false)
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end
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end
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describe '.remaining', :redis do
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before do
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Sidekiq::Testing.disable! do
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MergeWorker.perform_async('Foo')
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MergeWorker.perform_in(10.minutes, 'Foo')
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5.times do
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BackgroundMigrationWorker.perform_async('Foo')
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end
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3.times do
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BackgroundMigrationWorker.perform_in(10.minutes, 'Foo')
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end
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end
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end
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it 'uses the coordinator to find the number of remaining jobs' do
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expect(coordinator).to receive(:remaining).and_call_original
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expect(described_class.remaining).to eq(8)
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end
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end
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end
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