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# frozen_string_literal: true
require 'fast_spec_helper'
RSpec.describe 'memory watchdog', feature_category: :cloud_connector do
shared_examples 'starts configured watchdog' do |configure_monitor_method|
shared_examples 'configures and starts watchdog' do
it "correctly configures and starts watchdog", :aggregate_failures do
expect(Gitlab::Memory::Watchdog::Configurator).to receive(configure_monitor_method)
expect(Gitlab::Memory::Watchdog).to receive(:new).and_return(watchdog)
expect(Gitlab::BackgroundTask).to receive(:new).with(watchdog).and_return(background_task)
expect(background_task).to receive(:start)
expect(Gitlab::Cluster::LifecycleEvents).to receive(:on_worker_start).and_yield
run_initializer
end
end
end
let(:watchdog) { instance_double(Gitlab::Memory::Watchdog) }
let(:background_task) { instance_double(Gitlab::BackgroundTask) }
subject(:run_initializer) do
load rails_root_join('config/initializers/memory_watchdog.rb')
end
context 'when GITLAB_MEMORY_WATCHDOG_ENABLED is truthy' do
let(:env_switch) { 'true' }
before do
stub_env('GITLAB_MEMORY_WATCHDOG_ENABLED', env_switch)
end
context 'when runtime is an application' do
before do
allow(Gitlab::Runtime).to receive(:application?).and_return(true)
end
it 'registers a life-cycle hook' do
expect(Gitlab::Cluster::LifecycleEvents).to receive(:on_worker_start)
run_initializer
end
context 'when puma' do
before do
allow(Gitlab::Runtime).to receive(:puma?).and_return(true)
end
it_behaves_like 'starts configured watchdog', :configure_for_puma
end
context 'when sidekiq' do
before do
allow(Gitlab::Runtime).to receive(:sidekiq?).and_return(true)
end
it_behaves_like 'starts configured watchdog', :configure_for_sidekiq
end
end
context 'when runtime is unsupported' do
it 'does not register life-cycle hook' do
expect(Gitlab::Cluster::LifecycleEvents).not_to receive(:on_worker_start)
run_initializer
end
end
end
context 'when GITLAB_MEMORY_WATCHDOG_ENABLED is false' do
let(:env_switch) { 'false' }
before do
stub_env('GITLAB_MEMORY_WATCHDOG_ENABLED', env_switch)
# To rule out we return early due to this being false.
allow(Gitlab::Runtime).to receive(:application?).and_return(true)
end
it 'does not register life-cycle hook' do
expect(Gitlab::Cluster::LifecycleEvents).not_to receive(:on_worker_start)
run_initializer
end
end
context 'when GITLAB_MEMORY_WATCHDOG_ENABLED is not set' do
before do
# To rule out we return early due to this being false.
allow(Gitlab::Runtime).to receive(:application?).and_return(true)
end
context 'when puma' do
before do
allow(Gitlab::Runtime).to receive(:puma?).and_return(true)
end
it_behaves_like 'starts configured watchdog', :configure_for_puma
end
context 'when sidekiq' do
before do
allow(Gitlab::Runtime).to receive(:sidekiq?).and_return(true)
end
it_behaves_like 'starts configured watchdog', :configure_for_sidekiq
end
end
end
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