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|
# frozen_string_literal: true
require 'spec_helper'
describe BackgroundMigrationWorker, :sidekiq, :clean_gitlab_redis_shared_state do
let(:worker) { described_class.new }
describe '.minimum_interval' do
it 'returns 2 minutes' do
expect(described_class.minimum_interval).to eq(2.minutes.to_i)
end
end
describe '.perform' do
it 'performs a background migration' do
expect(Gitlab::BackgroundMigration)
.to receive(:perform)
.with('Foo', [10, 20])
worker.perform('Foo', [10, 20])
end
it 'reschedules a migration if it was performed recently' do
expect(worker)
.to receive(:always_perform?)
.and_return(false)
worker.lease_for('Foo').try_obtain
expect(Gitlab::BackgroundMigration)
.not_to receive(:perform)
expect(described_class)
.to receive(:perform_in)
.with(a_kind_of(Numeric), 'Foo', [10, 20])
worker.perform('Foo', [10, 20])
end
it 'reschedules a migration if the database is not healthy' do
allow(worker)
.to receive(:always_perform?)
.and_return(false)
allow(worker)
.to receive(:healthy_database?)
.and_return(false)
expect(described_class)
.to receive(:perform_in)
.with(a_kind_of(Numeric), 'Foo', [10, 20])
worker.perform('Foo', [10, 20])
end
end
describe '#healthy_database?' do
context 'when replication lag is too great' do
it 'returns false' do
allow(Postgresql::ReplicationSlot)
.to receive(:lag_too_great?)
.and_return(true)
expect(worker.healthy_database?).to eq(false)
end
context 'when replication lag is small enough' do
it 'returns true' do
allow(Postgresql::ReplicationSlot)
.to receive(:lag_too_great?)
.and_return(false)
expect(worker.healthy_database?).to eq(true)
end
end
end
end
end
|
