debian-mirror-gitlab/spec/lib/gitlab/sidekiq_middleware_spec.rb
2020-06-23 00:09:42 +05:30

176 lines
5.7 KiB
Ruby

# frozen_string_literal: true
require 'spec_helper'
require 'sidekiq/testing'
describe Gitlab::SidekiqMiddleware do
before do
stub_const('TestWorker', Class.new)
TestWorker.class_eval do
include Sidekiq::Worker
include ApplicationWorker
def perform(_arg)
Gitlab::SafeRequestStore['gitaly_call_actual'] = 1
Gitlab::SafeRequestStore[:gitaly_query_time] = 5
end
end
end
around do |example|
Sidekiq::Testing.inline! { example.run }
end
let(:worker_class) { TestWorker }
let(:job_args) { [0.01] }
# The test sets up a new server middleware stack, ensuring that the
# appropriate middlewares, as passed into server_configurator,
# are invoked.
# Additionally the test ensure that each middleware is
# 1) not failing
# 2) yielding exactly once
describe '.server_configurator' do
around do |example|
with_sidekiq_server_middleware do |chain|
described_class.server_configurator(
metrics: metrics,
arguments_logger: arguments_logger,
memory_killer: memory_killer
).call(chain)
example.run
end
end
let(:middleware_expected_args) { [a_kind_of(worker_class), hash_including({ 'args' => job_args }), anything] }
let(:all_sidekiq_middlewares) do
[
Gitlab::SidekiqMiddleware::Monitor,
Gitlab::SidekiqMiddleware::BatchLoader,
Labkit::Middleware::Sidekiq::Server,
Gitlab::SidekiqMiddleware::InstrumentationLogger,
Gitlab::SidekiqStatus::ServerMiddleware,
Gitlab::SidekiqMiddleware::ServerMetrics,
Gitlab::SidekiqMiddleware::ArgumentsLogger,
Gitlab::SidekiqMiddleware::MemoryKiller,
Gitlab::SidekiqMiddleware::RequestStoreMiddleware,
Gitlab::SidekiqMiddleware::ExtraDoneLogMetadata,
Gitlab::SidekiqMiddleware::WorkerContext::Server,
Gitlab::SidekiqMiddleware::AdminMode::Server,
Gitlab::SidekiqMiddleware::DuplicateJobs::Server
]
end
let(:enabled_sidekiq_middlewares) { all_sidekiq_middlewares - disabled_sidekiq_middlewares }
shared_examples "a server middleware chain" do
it "passes through the right server middlewares" do
enabled_sidekiq_middlewares.each do |middleware|
expect_any_instance_of(middleware).to receive(:call).with(*middleware_expected_args).once.and_call_original
end
disabled_sidekiq_middlewares.each do |middleware|
expect_any_instance_of(middleware).not_to receive(:call)
end
worker_class.perform_async(*job_args)
end
end
context "all optional middlewares off" do
let(:metrics) { false }
let(:arguments_logger) { false }
let(:memory_killer) { false }
let(:disabled_sidekiq_middlewares) do
[
Gitlab::SidekiqMiddleware::ServerMetrics,
Gitlab::SidekiqMiddleware::ArgumentsLogger,
Gitlab::SidekiqMiddleware::MemoryKiller
]
end
it_behaves_like "a server middleware chain"
end
context "all optional middlewares on" do
let(:metrics) { true }
let(:arguments_logger) { true }
let(:memory_killer) { true }
let(:disabled_sidekiq_middlewares) { [] }
it_behaves_like "a server middleware chain"
context "server metrics" do
let(:gitaly_histogram) { double(:gitaly_histogram) }
before do
allow(Gitlab::Metrics).to receive(:histogram).and_call_original
allow(Gitlab::Metrics).to receive(:histogram)
.with(:sidekiq_jobs_gitaly_seconds, anything, anything, anything)
.and_return(gitaly_histogram)
end
it "records correct Gitaly duration" do
expect(gitaly_histogram).to receive(:observe).with(anything, 5.0)
worker_class.perform_async(*job_args)
end
end
end
end
# The test sets up a new client middleware stack. The test ensures
# that each middleware is:
# 1) not failing
# 2) yielding exactly once
describe '.client_configurator' do
let(:chain) { Sidekiq::Middleware::Chain.new }
let(:job) { { 'args' => job_args } }
let(:queue) { 'default' }
let(:redis_pool) { Sidekiq.redis_pool }
let(:middleware_expected_args) { [worker_class_arg, job, queue, redis_pool] }
let(:expected_middlewares) do
[
::Gitlab::SidekiqMiddleware::WorkerContext::Client,
::Labkit::Middleware::Sidekiq::Client,
::Gitlab::SidekiqMiddleware::DuplicateJobs::Client,
::Gitlab::SidekiqStatus::ClientMiddleware,
::Gitlab::SidekiqMiddleware::AdminMode::Client,
::Gitlab::SidekiqMiddleware::ClientMetrics
]
end
before do
described_class.client_configurator.call(chain)
end
shared_examples "a client middleware chain" do
# Its possible that a middleware could accidentally omit a yield call
# this will prevent the full middleware chain from being executed.
# This test ensures that this does not happen
it "invokes the chain" do
expected_middlewares do |middleware|
expect_any_instance_of(middleware).to receive(:call).with(*middleware_expected_args).once.ordered.and_call_original
end
expect { |b| chain.invoke(worker_class_arg, job, queue, redis_pool, &b) }.to yield_control.once
end
end
# Sidekiq documentation states that the worker class could be a string
# or a class reference. We should test for both
context "handles string worker_class values" do
let(:worker_class_arg) { worker_class.to_s }
it_behaves_like "a client middleware chain"
end
context "handles string worker_class values" do
let(:worker_class_arg) { worker_class }
it_behaves_like "a client middleware chain"
end
end
end