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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::SidekiqMiddleware::ClientMetrics do
let(:enqueued_jobs_metric) { double('enqueued jobs metric', increment: true) }
shared_examples "a metrics middleware" do
context "with mocked prometheus" do
before do
labels[:scheduling] = 'immediate'
allow(Gitlab::Metrics).to receive(:counter).with(described_class::ENQUEUED, anything).and_return(enqueued_jobs_metric)
end
describe '#call' do
it 'yields block' do
expect { |b| subject.call(worker_class, job, :test, double, &b) }.to yield_control.once
end
it 'increments enqueued jobs metric with correct labels when worker is a string of the class' do
expect(enqueued_jobs_metric).to receive(:increment).with(labels, 1)
subject.call(worker_class.to_s, job, :test, double) { nil }
end
it 'increments enqueued jobs metric with correct labels' do
expect(enqueued_jobs_metric).to receive(:increment).with(labels, 1)
subject.call(worker_class, job, :test, double) { nil }
end
end
end
end
it_behaves_like 'metrics middleware with worker attribution'
context 'when mounted' do
before do
stub_const('TestWorker', Class.new)
TestWorker.class_eval do
include Sidekiq::Worker
def perform(*args)
end
end
allow(Gitlab::Metrics).to receive(:counter).and_return(Gitlab::Metrics::NullMetric.instance)
allow(Gitlab::Metrics).to receive(:counter).with(described_class::ENQUEUED, anything).and_return(enqueued_jobs_metric)
end
context 'when scheduling jobs for immediate execution' do
it 'increments enqueued jobs metric with scheduling label set to immediate' do
expect(enqueued_jobs_metric).to receive(:increment).with(a_hash_including(scheduling: 'immediate'), 1)
Sidekiq::Testing.inline! { TestWorker.perform_async }
end
end
context 'when scheduling jobs for future execution' do
it 'increments enqueued jobs metric with scheduling label set to delayed' do
expect(enqueued_jobs_metric).to receive(:increment).with(a_hash_including(scheduling: 'delayed'), 1)
Sidekiq::Testing.inline! { TestWorker.perform_in(1.second) }
end
it 'sets the scheduled_at field' do
job = { 'at' => Time.current }
subject.call('TestWorker', job, 'queue', nil) do
expect(job[:scheduled_at]).to eq(job['at'])
end
end
end
context 'when the worker class cannot be found' do
it 'increments enqueued jobs metric with the worker labels set to NilClass' do
test_anonymous_worker = Class.new(TestWorker)
expect(enqueued_jobs_metric).to receive(:increment).with(a_hash_including(worker: 'NilClass'), 1)
# Sidekiq won't be able to create an instance of this class
expect do
Sidekiq::Testing.inline! { test_anonymous_worker.perform_async }
end.to raise_error(NameError)
end
end
end
end
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