gitlab-org--gitlab-foss/spec/lib/prometheus/cleanup_multiproc_dir_service_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
describe Prometheus::CleanupMultiprocDirService do
describe '.call' do
subject { described_class.new.execute }
let(:metrics_multiproc_dir) { Dir.mktmpdir }
let(:metrics_file_path) { File.join(metrics_multiproc_dir, 'counter_puma_master-0.db') }
before do
FileUtils.touch(metrics_file_path)
end
after do
FileUtils.rm_r(metrics_multiproc_dir)
end
context 'when `multiprocess_files_dir` is defined' do
before do
expect(Prometheus::Client.configuration)
.to receive(:multiprocess_files_dir)
.and_return(metrics_multiproc_dir)
.at_least(:once)
end
it 'removes old metrics' do
expect { subject }
.to change { File.exist?(metrics_file_path) }
.from(true)
.to(false)
end
end
context 'when `multiprocess_files_dir` is not defined' do
before do
expect(Prometheus::Client.configuration)
.to receive(:multiprocess_files_dir)
.and_return(nil)
.at_least(:once)
end
it 'does not remove any files' do
expect { subject }
.not_to change { File.exist?(metrics_file_path) }
.from(true)
end
end
end
end