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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Metrics::SidekiqMiddleware do
let(:middleware) { described_class.new }
let(:message) { { 'args' => ['test'], 'enqueued_at' => Time.new(2016, 6, 23, 6, 59).to_f } }
describe '#call' do
it 'tracks the transaction' do
worker = double(:worker, class: double(:class, name: 'TestWorker'))
expect_next_instance_of(Gitlab::Metrics::BackgroundTransaction) do |transaction|
expect(transaction).to receive(:set).with(:sidekiq_queue_duration, instance_of(Float))
expect(transaction).to receive(:increment).with(:db_count, 1)
end
middleware.call(worker, message, :test) do
ActiveRecord::Base.connection.execute('SELECT pg_sleep(0.1);')
end
end
it 'prevents database counters from leaking to the next transaction' do
worker = double(:worker, class: double(:class, name: 'TestWorker'))
2.times do
Gitlab::WithRequestStore.with_request_store do
middleware.call(worker, message, :test) do
ActiveRecord::Base.connection.execute('SELECT pg_sleep(0.1);')
end
end
end
expect(message).to include(db_count: 1, db_write_count: 0, db_cached_count: 0)
end
it 'tracks the transaction (for messages without `enqueued_at`)', :aggregate_failures do
worker = double(:worker, class: double(:class, name: 'TestWorker'))
expect(Gitlab::Metrics::BackgroundTransaction).to receive(:new)
.with(worker.class)
.and_call_original
expect_any_instance_of(Gitlab::Metrics::Transaction).to receive(:set)
.with(:sidekiq_queue_duration, instance_of(Float))
middleware.call(worker, {}, :test) { nil }
end
it 'tracks any raised exceptions', :aggregate_failures, :request_store do
worker = double(:worker, class: double(:class, name: 'TestWorker'))
expect_any_instance_of(Gitlab::Metrics::Transaction)
.to receive(:add_event).with(:sidekiq_exception)
expect do
middleware.call(worker, message, :test) do
ActiveRecord::Base.connection.execute('SELECT pg_sleep(0.1);')
raise RuntimeError
end
end.to raise_error(RuntimeError)
expect(message).to include(db_count: 1, db_write_count: 0, db_cached_count: 0)
end
end
end
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