148 lines
4.5 KiB
Ruby
148 lines
4.5 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe Gitlab::BatchPopQueueing do
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include ExclusiveLeaseHelpers
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using RSpec::Parameterized::TableSyntax
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describe '#initialize' do
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where(:namespace, :queue_id, :expect_error, :error_type) do
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'feature' | '1' | false | nil
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:feature | '1' | false | nil
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nil | '1' | true | NoMethodError
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'feature' | nil | true | NoMethodError
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'' | '1' | true | ArgumentError
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'feature' | '' | true | ArgumentError
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'feature' | 1 | true | NoMethodError
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end
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with_them do
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it do
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if expect_error
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expect { described_class.new(namespace, queue_id) }.to raise_error(error_type)
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else
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expect { described_class.new(namespace, queue_id) }.not_to raise_error
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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 '#safe_execute', :clean_gitlab_redis_queues do
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subject { queue.safe_execute(new_items, lock_timeout: lock_timeout) }
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let(:queue) { described_class.new(namespace, queue_id) }
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let(:namespace) { 'feature' }
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let(:queue_id) { '1' }
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let(:lock_timeout) { 10.minutes }
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let(:new_items) { %w[A B] }
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let(:lock_key) { queue.send(:lock_key) }
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let(:queue_key) { queue.send(:queue_key) }
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it 'enqueues new items always' do
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Gitlab::Redis::Queues.with do |redis|
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expect(redis).to receive(:sadd).with(queue_key, new_items)
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expect(redis).to receive(:expire).with(queue_key, (lock_timeout + described_class::EXTRA_QUEUE_EXPIRE_WINDOW).to_i)
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end
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subject
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end
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it 'yields the new items with exclusive lease' do
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uuid = 'test'
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expect_to_obtain_exclusive_lease(lock_key, uuid, timeout: lock_timeout)
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expect_to_cancel_exclusive_lease(lock_key, uuid)
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expect { |b| queue.safe_execute(new_items, lock_timeout: lock_timeout, &b) }
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.to yield_with_args(match_array(new_items))
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end
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it 'returns the result and no items in the queue' do
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expect(subject[:status]).to eq(:finished)
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expect(subject[:new_items]).to be_empty
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Gitlab::Redis::Queues.with do |redis|
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expect(redis.llen(queue_key)).to be(0)
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end
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end
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context 'when new items are enqueued during the process' do
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it 'returns the result with newly added items' do
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result = queue.safe_execute(new_items) do
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queue.safe_execute(['C'])
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end
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expect(result[:status]).to eq(:finished)
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expect(result[:new_items]).to eq(['C'])
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Gitlab::Redis::Queues.with do |redis|
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expect(redis.scard(queue_key)).to be(1)
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end
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end
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end
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context 'when interger items are enqueued' do
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let(:new_items) { [1, 2, 3] }
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it 'yields as String values' do
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expect { |b| queue.safe_execute(new_items, lock_timeout: lock_timeout, &b) }
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.to yield_with_args(%w[1 2 3])
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end
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end
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context 'when the queue key does not exist in Redis' do
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before do
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allow(queue).to receive(:enqueue) { }
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end
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it 'yields empty array' do
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expect { |b| queue.safe_execute(new_items, lock_timeout: lock_timeout, &b) }
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.to yield_with_args([])
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end
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end
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context 'when the other process has already been working on the queue' do
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before do
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stub_exclusive_lease_taken(lock_key, timeout: lock_timeout)
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end
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it 'does not yield the block' do
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expect { |b| queue.safe_execute(new_items, lock_timeout: lock_timeout, &b) }
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.not_to yield_control
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end
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it 'returns the result' do
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expect(subject[:status]).to eq(:enqueued)
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end
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end
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context 'when a duplicate item is enqueued' do
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it 'returns the poped items to the queue and raise an error' do
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expect { |b| queue.safe_execute(%w[1 1 2 2], &b) }
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.to yield_with_args(match_array(%w[1 2]))
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end
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end
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context 'when there are two queues' do
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it 'enqueues items to each queue' do
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queue_1 = described_class.new(namespace, '1')
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queue_2 = described_class.new(namespace, '2')
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result_2 = nil
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result_1 = queue_1.safe_execute(['A']) do |_|
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result_2 = queue_2.safe_execute(['B']) do |_|
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queue_1.safe_execute(['C'])
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queue_2.safe_execute(['D'])
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end
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end
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expect(result_1[:status]).to eq(:finished)
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expect(result_1[:new_items]).to eq(['C'])
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expect(result_2[:status]).to eq(:finished)
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expect(result_2[:new_items]).to eq(['D'])
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end
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end
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end
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end
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