diff options
Diffstat (limited to 'spec/lib/gitlab/database/async_foreign_keys/migration_helpers_spec.rb')
| -rw-r--r-- | spec/lib/gitlab/database/async_foreign_keys/migration_helpers_spec.rb | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/spec/lib/gitlab/database/async_foreign_keys/migration_helpers_spec.rb b/spec/lib/gitlab/database/async_foreign_keys/migration_helpers_spec.rb new file mode 100644 index 00000000000..0bd0e8045ff --- /dev/null +++ b/spec/lib/gitlab/database/async_foreign_keys/migration_helpers_spec.rb @@ -0,0 +1,167 @@ +# frozen_string_literal: true + +require 'spec_helper' + +RSpec.describe Gitlab::Database::AsyncForeignKeys::MigrationHelpers, feature_category: :database do + let(:migration) { Gitlab::Database::Migration[2.1].new } + let(:connection) { ApplicationRecord.connection } + let(:fk_model) { Gitlab::Database::AsyncForeignKeys::PostgresAsyncForeignKeyValidation } + let(:table_name) { '_test_async_fks' } + let(:column_name) { 'parent_id' } + let(:fk_name) { nil } + + context 'with regular tables' do + before do + allow(migration).to receive(:puts) + allow(migration.connection).to receive(:transaction_open?).and_return(false) + + connection.create_table(table_name) do |t| + t.integer column_name + end + + migration.add_concurrent_foreign_key( + table_name, table_name, + column: column_name, validate: false, name: fk_name) + end + + describe '#prepare_async_foreign_key_validation' do + it 'creates the record for the async FK validation' do + expect do + migration.prepare_async_foreign_key_validation(table_name, column_name) + end.to change { fk_model.where(table_name: table_name).count }.by(1) + + record = fk_model.find_by(table_name: table_name) + + expect(record.name).to start_with('fk_') + end + + context 'when an explicit name is given' do + let(:fk_name) { 'my_fk_name' } + + it 'creates the record with the given name' do + expect do + migration.prepare_async_foreign_key_validation(table_name, name: fk_name) + end.to change { fk_model.where(name: fk_name).count }.by(1) + + record = fk_model.find_by(name: fk_name) + + expect(record.table_name).to eq(table_name) + end + end + + context 'when the FK does not exist' do + it 'returns an error' do + expect do + migration.prepare_async_foreign_key_validation(table_name, name: 'no_fk') + end.to raise_error RuntimeError, /Could not find foreign key "no_fk" on table "_test_async_fks"/ + end + end + + context 'when the record already exists' do + let(:fk_name) { 'my_fk_name' } + + it 'does attempt to create the record' do + create(:postgres_async_foreign_key_validation, table_name: table_name, name: fk_name) + + expect do + migration.prepare_async_foreign_key_validation(table_name, name: fk_name) + end.not_to change { fk_model.where(name: fk_name).count } + end + end + + context 'when the async FK validation table does not exist' do + it 'does not raise an error' do + connection.drop_table(:postgres_async_foreign_key_validations) + + expect(fk_model).not_to receive(:safe_find_or_create_by!) + + expect { migration.prepare_async_foreign_key_validation(table_name, column_name) }.not_to raise_error + end + end + end + + describe '#unprepare_async_foreign_key_validation' do + before do + migration.prepare_async_foreign_key_validation(table_name, column_name, name: fk_name) + end + + it 'destroys the record' do + expect do + migration.unprepare_async_foreign_key_validation(table_name, column_name) + end.to change { fk_model.where(table_name: table_name).count }.by(-1) + end + + context 'when an explicit name is given' do + let(:fk_name) { 'my_test_async_fk' } + + it 'destroys the record' do + expect do + migration.unprepare_async_foreign_key_validation(table_name, name: fk_name) + end.to change { fk_model.where(name: fk_name).count }.by(-1) + end + end + + context 'when the async fk validation table does not exist' do + it 'does not raise an error' do + connection.drop_table(:postgres_async_foreign_key_validations) + + expect(fk_model).not_to receive(:find_by) + + expect { migration.unprepare_async_foreign_key_validation(table_name, column_name) }.not_to raise_error + end + end + end + end + + context 'with partitioned tables' do + let(:partition_schema) { 'gitlab_partitions_dynamic' } + let(:partition1_name) { "#{partition_schema}.#{table_name}_202001" } + let(:partition2_name) { "#{partition_schema}.#{table_name}_202002" } + let(:fk_name) { 'my_partitioned_fk_name' } + + before do + connection.execute(<<~SQL) + CREATE TABLE #{table_name} ( + id serial NOT NULL, + #{column_name} int NOT NULL, + created_at timestamptz NOT NULL, + PRIMARY KEY (id, created_at) + ) PARTITION BY RANGE (created_at); + + CREATE TABLE #{partition1_name} PARTITION OF #{table_name} + FOR VALUES FROM ('2020-01-01') TO ('2020-02-01'); + + CREATE TABLE #{partition2_name} PARTITION OF #{table_name} + FOR VALUES FROM ('2020-02-01') TO ('2020-03-01'); + SQL + end + + describe '#prepare_partitioned_async_foreign_key_validation' do + it 'delegates to prepare_async_foreign_key_validation for each partition' do + expect(migration) + .to receive(:prepare_async_foreign_key_validation) + .with(partition1_name, column_name, name: fk_name) + + expect(migration) + .to receive(:prepare_async_foreign_key_validation) + .with(partition2_name, column_name, name: fk_name) + + migration.prepare_partitioned_async_foreign_key_validation(table_name, column_name, name: fk_name) + end + end + + describe '#unprepare_partitioned_async_foreign_key_validation' do + it 'delegates to unprepare_async_foreign_key_validation for each partition' do + expect(migration) + .to receive(:unprepare_async_foreign_key_validation) + .with(partition1_name, column_name, name: fk_name) + + expect(migration) + .to receive(:unprepare_async_foreign_key_validation) + .with(partition2_name, column_name, name: fk_name) + + migration.unprepare_partitioned_async_foreign_key_validation(table_name, column_name, name: fk_name) + end + end + end +end |