chinwagsocial/spec/workers/scheduler/accounts_statuses_cleanup_scheduler_spec.rb

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# frozen_string_literal: true
require 'rails_helper'
describe Scheduler::AccountsStatusesCleanupScheduler do
subject { described_class.new }
let!(:account_alice) { Fabricate(:account, domain: nil, username: 'alice') }
let!(:account_bob) { Fabricate(:account, domain: nil, username: 'bob') }
let!(:account_chris) { Fabricate(:account, domain: nil, username: 'chris') }
let!(:account_dave) { Fabricate(:account, domain: nil, username: 'dave') }
let!(:account_erin) { Fabricate(:account, domain: nil, username: 'erin') }
let!(:remote) { Fabricate(:account) }
let(:queue_size) { 0 }
let(:queue_latency) { 0 }
let(:process_set_stub) do
[
{
'concurrency' => 2,
'queues' => %w(push default),
},
]
end
before do
queue_stub = instance_double(Sidekiq::Queue, size: queue_size, latency: queue_latency)
allow(Sidekiq::Queue).to receive(:new).and_return(queue_stub)
allow(Sidekiq::ProcessSet).to receive(:new).and_return(process_set_stub)
sidekiq_stats_stub = instance_double(Sidekiq::Stats)
allow(Sidekiq::Stats).to receive(:new).and_return(sidekiq_stats_stub)
end
describe '#under_load?' do
context 'when nothing is queued' do
it 'returns false' do
expect(subject.under_load?).to be false
end
end
context 'when numerous jobs are queued' do
let(:queue_size) { 5 }
let(:queue_latency) { 120 }
it 'returns true' do
expect(subject.under_load?).to be true
end
end
end
describe '#compute_budget' do
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context 'with a single thread' do
let(:process_set_stub) { [{ 'concurrency' => 1, 'queues' => %w(push default) }] }
it 'returns a low value' do
expect(subject.compute_budget).to be < 10
end
end
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context 'with a lot of threads' do
let(:process_set_stub) do
[
{ 'concurrency' => 2, 'queues' => %w(push default) },
{ 'concurrency' => 2, 'queues' => ['push'] },
{ 'concurrency' => 2, 'queues' => ['push'] },
{ 'concurrency' => 2, 'queues' => ['push'] },
]
end
it 'returns a larger value' do
expect(subject.compute_budget).to be > 10
end
end
end
describe '#perform' do
around do |example|
Timeout.timeout(30) do
example.run
end
end
before do
# Policies for the accounts
Fabricate(:account_statuses_cleanup_policy, account: account_alice)
Fabricate(:account_statuses_cleanup_policy, account: account_chris)
Fabricate(:account_statuses_cleanup_policy, account: account_dave, enabled: false)
Fabricate(:account_statuses_cleanup_policy, account: account_erin)
# Create a bunch of old statuses
4.times do
Fabricate(:status, account: account_alice, created_at: 3.years.ago)
Fabricate(:status, account: account_bob, created_at: 3.years.ago)
Fabricate(:status, account: account_chris, created_at: 3.years.ago)
Fabricate(:status, account: account_dave, created_at: 3.years.ago)
Fabricate(:status, account: account_erin, created_at: 3.years.ago)
Fabricate(:status, account: remote, created_at: 3.years.ago)
end
# Create a bunch of newer statuses
Fabricate(:status, account: account_alice, created_at: 3.minutes.ago)
Fabricate(:status, account: account_bob, created_at: 3.minutes.ago)
Fabricate(:status, account: account_chris, created_at: 3.minutes.ago)
Fabricate(:status, account: account_dave, created_at: 3.minutes.ago)
Fabricate(:status, account: remote, created_at: 3.minutes.ago)
end
context 'when the budget is lower than the number of toots to delete' do
it 'deletes the appropriate statuses' do
expect(Status.count).to be > (subject.compute_budget) # Data check
expect { subject.perform }
.to change(Status, :count).by(-subject.compute_budget) # Cleanable statuses
.and (not_change { account_bob.statuses.count }) # No cleanup policy for account
.and(not_change { account_dave.statuses.count }) # Disabled cleanup policy
end
it 'eventually deletes every deletable toot given enough runs' do
stub_const 'Scheduler::AccountsStatusesCleanupScheduler::MAX_BUDGET', 4
expect { 3.times { subject.perform } }.to change(Status, :count).by(-cleanable_statuses_count)
end
it 'correctly round-trips between users across several runs' do
stub_const 'Scheduler::AccountsStatusesCleanupScheduler::MAX_BUDGET', 3
stub_const 'Scheduler::AccountsStatusesCleanupScheduler::PER_ACCOUNT_BUDGET', 2
expect { 3.times { subject.perform } }
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.to change(Status, :count).by(-3 * 3)
.and change { account_alice.statuses.count }
.and change { account_chris.statuses.count }
.and(change { account_erin.statuses.count })
end
context 'when given a big budget' do
let(:process_set_stub) { [{ 'concurrency' => 400, 'queues' => %w(push default) }] }
before do
stub_const 'Scheduler::AccountsStatusesCleanupScheduler::MAX_BUDGET', 400
end
it 'correctly handles looping in a single run' do
expect(subject.compute_budget).to eq(400)
expect { subject.perform }.to change(Status, :count).by(-cleanable_statuses_count)
end
end
context 'when there is no work to be done' do
let(:process_set_stub) { [{ 'concurrency' => 400, 'queues' => %w(push default) }] }
before do
stub_const 'Scheduler::AccountsStatusesCleanupScheduler::MAX_BUDGET', 400
subject.perform
end
it 'does not get stuck' do
expect(subject.compute_budget).to eq(400)
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expect { subject.perform }.to_not change(Status, :count)
end
end
def cleanable_statuses_count
Status
.where(account_id: [account_alice, account_chris, account_erin]) # Accounts with enabled policies
.where('created_at < ?', 2.weeks.ago) # Policy defaults is 2.weeks
.count
end
end
end
end