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|
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::Migrations::BatchedBackgroundMigrationHelpers do
let(:migration) do
ActiveRecord::Migration.new.extend(described_class)
end
describe '#queue_batched_background_migration' do
let(:pgclass_info) { instance_double('Gitlab::Database::PgClass', cardinality_estimate: 42) }
before do
allow(Gitlab::Database::PgClass).to receive(:for_table).and_call_original
end
context 'when such migration already exists' do
it 'does not create duplicate migration' do
create(
:batched_background_migration,
job_class_name: 'MyJobClass',
table_name: :projects,
column_name: :id,
interval: 10.minutes,
min_value: 5,
max_value: 1005,
batch_class_name: 'MyBatchClass',
batch_size: 200,
sub_batch_size: 20,
job_arguments: [[:id], [:id_convert_to_bigint]]
)
expect do
migration.queue_batched_background_migration(
'MyJobClass',
:projects,
:id,
[:id], [:id_convert_to_bigint],
job_interval: 5.minutes,
batch_min_value: 5,
batch_max_value: 1000,
batch_class_name: 'MyBatchClass',
batch_size: 100,
sub_batch_size: 10)
end.not_to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }
end
end
it 'creates the database record for the migration' do
expect(Gitlab::Database::PgClass).to receive(:for_table).with(:projects).and_return(pgclass_info)
expect do
migration.queue_batched_background_migration(
'MyJobClass',
:projects,
:id,
job_interval: 5.minutes,
batch_min_value: 5,
batch_max_value: 1000,
batch_class_name: 'MyBatchClass',
batch_size: 100,
max_batch_size: 10000,
sub_batch_size: 10)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(1)
expect(Gitlab::Database::BackgroundMigration::BatchedMigration.last).to have_attributes(
job_class_name: 'MyJobClass',
table_name: 'projects',
column_name: 'id',
interval: 300,
min_value: 5,
max_value: 1000,
batch_class_name: 'MyBatchClass',
batch_size: 100,
max_batch_size: 10000,
sub_batch_size: 10,
job_arguments: %w[],
status_name: :active,
total_tuple_count: pgclass_info.cardinality_estimate)
end
context 'when the job interval is lower than the minimum' do
let(:minimum_delay) { described_class::BATCH_MIN_DELAY }
it 'sets the job interval to the minimum value' do
expect do
migration.queue_batched_background_migration('MyJobClass', :events, :id, job_interval: minimum_delay - 1.minute)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(1)
created_migration = Gitlab::Database::BackgroundMigration::BatchedMigration.last
expect(created_migration.interval).to eq(minimum_delay)
end
end
context 'when additional arguments are passed to the method' do
it 'saves the arguments on the database record' do
expect do
migration.queue_batched_background_migration(
'MyJobClass',
:projects,
:id,
'my',
'arguments',
job_interval: 5.minutes,
batch_max_value: 1000)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(1)
expect(Gitlab::Database::BackgroundMigration::BatchedMigration.last).to have_attributes(
job_class_name: 'MyJobClass',
table_name: 'projects',
column_name: 'id',
interval: 300,
min_value: 1,
max_value: 1000,
job_arguments: %w[my arguments])
end
end
context 'when the max_value is not given' do
context 'when records exist in the database' do
let!(:event1) { create(:event) }
let!(:event2) { create(:event) }
let!(:event3) { create(:event) }
it 'creates the record with the current max value' do
expect do
migration.queue_batched_background_migration('MyJobClass', :events, :id, job_interval: 5.minutes)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(1)
created_migration = Gitlab::Database::BackgroundMigration::BatchedMigration.last
expect(created_migration.max_value).to eq(event3.id)
end
it 'creates the record with an active status' do
expect do
migration.queue_batched_background_migration('MyJobClass', :events, :id, job_interval: 5.minutes)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(1)
expect(Gitlab::Database::BackgroundMigration::BatchedMigration.last).to be_active
end
end
context 'when the database is empty' do
it 'sets the max value to the min value' do
expect do
migration.queue_batched_background_migration('MyJobClass', :events, :id, job_interval: 5.minutes)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(1)
created_migration = Gitlab::Database::BackgroundMigration::BatchedMigration.last
expect(created_migration.max_value).to eq(created_migration.min_value)
end
it 'creates the record with a finished status' do
expect do
migration.queue_batched_background_migration('MyJobClass', :projects, :id, job_interval: 5.minutes)
end.to change { Gitlab::Database::BackgroundMigration::BatchedMigration.count }.by(1)
expect(Gitlab::Database::BackgroundMigration::BatchedMigration.last).to be_finished
end
end
end
end
describe '#finalize_batched_background_migration' do
let!(:batched_migration) { create(:batched_background_migration, job_class_name: 'MyClass', table_name: :projects, column_name: :id, job_arguments: []) }
it 'finalizes the migration' do
allow_next_instance_of(Gitlab::Database::BackgroundMigration::BatchedMigrationRunner) do |runner|
expect(runner).to receive(:finalize).with('MyClass', :projects, :id, [])
end
migration.finalize_batched_background_migration(job_class_name: 'MyClass', table_name: :projects, column_name: :id, job_arguments: [])
end
context 'when the migration does not exist' do
it 'raises an exception' do
expect do
migration.finalize_batched_background_migration(job_class_name: 'MyJobClass', table_name: :projects, column_name: :id, job_arguments: [])
end.to raise_error(RuntimeError, 'Could not find batched background migration')
end
end
context 'when uses a CI connection', :reestablished_active_record_base do
before do
skip_if_multiple_databases_not_setup
ActiveRecord::Base.establish_connection(:ci) # rubocop:disable Database/EstablishConnection
end
it 'raises an exception' do
ci_migration = create(:batched_background_migration, :active)
expect do
migration.finalize_batched_background_migration(
job_class_name: ci_migration.job_class_name,
table_name: ci_migration.table_name,
column_name: ci_migration.column_name,
job_arguments: ci_migration.job_arguments
)
end.to raise_error /is currently not supported when running in decomposed/
end
end
end
end
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