698 lines
23 KiB
Ruby
698 lines
23 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Database, feature_category: :database do
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before do
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stub_const('MigrationTest', Class.new { include Gitlab::Database })
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end
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describe 'EXTRA_SCHEMAS' do
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it 'contains only schemas starting with gitlab_ prefix' do
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described_class::EXTRA_SCHEMAS.each do |schema|
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expect(schema.to_s).to start_with('gitlab_')
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end
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end
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end
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describe '.all_database_connections' do
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it 'the first entry is always main' do
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expect(described_class.all_database_connections.keys).to start_with('main')
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end
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it 'contains as many entries as YAML files' do
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expect(described_class.all_database_connections.values.map(&:file_path))
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.to contain_exactly(*described_class.all_database_connection_files)
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end
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end
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describe '.database_base_models' do
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subject { described_class.database_base_models }
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it 'contains "main"' do
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is_expected.to include("main" => ActiveRecord::Base)
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end
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it 'does not contain "ci" when not running CI database' do
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skip_if_multiple_databases_are_setup(:ci)
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is_expected.not_to include("ci")
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end
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it 'contains "ci" pointing to Ci::ApplicationRecord when running CI database' do
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skip_if_multiple_databases_not_setup(:ci)
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is_expected.to include("ci" => Ci::ApplicationRecord)
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end
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end
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describe '.all_gitlab_schemas' do
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it 'contains as many entries as YAML files' do
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expect(described_class.all_gitlab_schemas.values.map(&:file_path))
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.to contain_exactly(*described_class.all_gitlab_schema_files)
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end
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end
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describe '.schemas_to_base_models' do
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subject { described_class.schemas_to_base_models }
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it 'contains gitlab_main' do
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is_expected.to include(gitlab_main: [ActiveRecord::Base])
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end
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it 'contains gitlab_shared' do
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is_expected.to include(gitlab_main: include(ActiveRecord::Base))
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end
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it 'contains gitlab_ci pointing to ActiveRecord::Base when not running CI database' do
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skip_if_multiple_databases_are_setup(:ci)
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is_expected.to include(gitlab_ci: [ActiveRecord::Base])
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end
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it 'contains gitlab_ci pointing to Ci::ApplicationRecord when running CI database' do
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skip_if_multiple_databases_not_setup(:ci)
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is_expected.to include(gitlab_ci: [Ci::ApplicationRecord])
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end
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end
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describe '.default_pool_size' do
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before do
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allow(Gitlab::Runtime).to receive(:max_threads).and_return(7)
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end
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it 'returns the max thread size plus a fixed headroom of 10' do
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expect(described_class.default_pool_size).to eq(17)
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end
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it 'returns the max thread size plus a DB_POOL_HEADROOM if this env var is present' do
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stub_env('DB_POOL_HEADROOM', '7')
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expect(described_class.default_pool_size).to eq(14)
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end
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end
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describe '.has_config?' do
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context 'three tier database config' do
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it 'returns true for main' do
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expect(described_class.has_config?(:main)).to eq(true)
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end
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context 'ci' do
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before do
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# CI config might not be configured
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allow(ActiveRecord::Base.configurations).to receive(:configs_for)
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.with(env_name: 'test', name: 'ci', include_hidden: true)
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.and_return(ci_db_config)
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end
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let(:ci_db_config) { instance_double('ActiveRecord::DatabaseConfigurations::HashConfig') }
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it 'returns true for ci' do
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expect(described_class.has_config?(:ci)).to eq(true)
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end
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context 'ci database.yml not configured' do
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let(:ci_db_config) { nil }
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it 'returns false for ci' do
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expect(described_class.has_config?(:ci)).to eq(false)
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end
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end
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end
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it 'returns false for non-existent' do
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expect(described_class.has_config?(:nonexistent)).to eq(false)
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end
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end
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end
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describe '.has_database?' do
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context 'three tier database config' do
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it 'returns true for main' do
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expect(described_class.has_database?(:main)).to eq(true)
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end
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it 'returns false for shared database' do
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skip_if_multiple_databases_not_setup(:ci)
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skip_if_database_exists(:ci)
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expect(described_class.has_database?(:ci)).to eq(false)
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end
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it 'returns false for non-existent' do
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expect(described_class.has_database?(:nonexistent)).to eq(false)
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end
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end
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end
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describe '.database_mode' do
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context 'three tier database config' do
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it 'returns single-database if ci is not configured' do
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skip_if_multiple_databases_are_setup(:ci)
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expect(described_class.database_mode).to eq(::Gitlab::Database::MODE_SINGLE_DATABASE)
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end
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it 'returns single-database-ci-connection if ci is shared with main database' do
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skip_if_multiple_databases_not_setup(:ci)
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skip_if_database_exists(:ci)
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expect(described_class.database_mode).to eq(::Gitlab::Database::MODE_SINGLE_DATABASE_CI_CONNECTION)
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end
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it 'returns multiple-database if ci has its own database' do
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skip_if_shared_database(:ci)
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expect(described_class.database_mode).to eq(::Gitlab::Database::MODE_MULTIPLE_DATABASES)
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end
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end
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end
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describe '.check_for_non_superuser' do
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subject { described_class.check_for_non_superuser }
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let(:non_superuser) { Gitlab::Database::PgUser.new(usename: 'foo', usesuper: false) }
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let(:superuser) { Gitlab::Database::PgUser.new(usename: 'bar', usesuper: true) }
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it 'prints user details if not superuser' do
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allow(Gitlab::Database::PgUser).to receive(:find_by).with('usename = CURRENT_USER').and_return(non_superuser)
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expect(Gitlab::AppLogger).to receive(:info).with("Account details: User: \"foo\", UseSuper: (false)")
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subject
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end
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it 'raises an exception if superuser' do
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allow(Gitlab::Database::PgUser).to receive(:find_by).with('usename = CURRENT_USER').and_return(superuser)
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expect(Gitlab::AppLogger).to receive(:info).with("Account details: User: \"bar\", UseSuper: (true)")
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expect { subject }.to raise_error('Error: detected superuser')
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end
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it 'catches exception if find_by fails' do
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allow(Gitlab::Database::PgUser).to receive(:find_by).with('usename = CURRENT_USER').and_raise(ActiveRecord::StatementInvalid)
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expect { subject }.to raise_error('User CURRENT_USER not found')
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end
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end
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describe '.db_config_for_connection' do
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context 'when the regular connection is used' do
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it 'returns db_config' do
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connection = ApplicationRecord.retrieve_connection
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expect(described_class.db_config_for_connection(connection)).to eq(connection.pool.db_config)
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end
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end
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context 'when the connection is LoadBalancing::ConnectionProxy', :database_replica do
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it 'returns primary db config even if ambiguous queries default to replica' do
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Gitlab::Database.database_base_models_using_load_balancing.each_value do |database_base_model|
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connection = database_base_model.connection
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Gitlab::Database::LoadBalancing::SessionMap.with_sessions([::ApplicationRecord, ::Ci::ApplicationRecord]).use_primary!
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primary_config = described_class.db_config_for_connection(connection)
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Gitlab::Database::LoadBalancing::SessionMap.clear_session
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Gitlab::Database::LoadBalancing::SessionMap.with_sessions([::ApplicationRecord, ::Ci::ApplicationRecord]).fallback_to_replicas_for_ambiguous_queries do
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expect(described_class.db_config_for_connection(connection)).to eq(primary_config)
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end
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end
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end
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end
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context 'when the pool is a NullPool' do
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it 'returns nil' do
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connection = double(:active_record_connection, pool: ActiveRecord::ConnectionAdapters::NullPool.new)
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expect(described_class.db_config_for_connection(connection)).to be_nil
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end
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end
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end
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describe '.db_config_name' do
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it 'returns the db_config name for the connection' do
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model = ActiveRecord::Base
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# This is a ConnectionProxy
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expect(described_class.db_config_name(model.connection))
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.to eq('main')
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# This is an actual connection
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expect(described_class.db_config_name(model.retrieve_connection))
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.to eq('main')
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end
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context 'when replicas are configured', :database_replica do
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it 'returns the main_replica for a main database replica' do
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replica = ApplicationRecord.load_balancer.host
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expect(described_class.db_config_name(replica)).to eq('main_replica')
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end
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it 'returns the ci_replica for a ci database replica' do
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skip_if_multiple_databases_not_setup(:ci)
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replica = Ci::ApplicationRecord.load_balancer.host
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expect(described_class.db_config_name(replica)).to eq('ci_replica')
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end
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end
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end
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describe '.db_config_database' do
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let(:model) { ActiveRecord::Base }
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it 'returns the db_config database for the connection' do
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# This is a ConnectionProxy
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expect(described_class.db_config_database(model.connection)).to eq('gitlabhq_test')
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# This is an actual connection
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expect(described_class.db_config_database(model.retrieve_connection)).to eq('gitlabhq_test')
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end
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it 'returns unknown if .database returns nil' do
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expect(described_class.db_config_database(nil)).to eq('unknown')
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end
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end
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describe '.db_config_names' do
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using RSpec::Parameterized::TableSyntax
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where(:configs_for, :gitlab_schema, :expected_main, :expected_main_ci) do
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%i[main] | :gitlab_shared | %i[main] | %i[main]
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%i[main ci] | :gitlab_shared | %i[main] | %i[main ci]
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%i[main ci] | :gitlab_ci | %i[main] | %i[ci]
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end
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with_them do
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before do
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hash_configs = configs_for.map do |x|
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instance_double(ActiveRecord::DatabaseConfigurations::HashConfig, name: x)
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end
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allow(::ActiveRecord::Base).to receive(:configurations).and_return(
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instance_double(ActiveRecord::DatabaseConfigurations, configs_for: hash_configs)
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)
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end
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if ::Gitlab::Database.has_config?(:ci)
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it 'when main and CI database are configured' do
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expect(described_class.db_config_names(with_schema: gitlab_schema))
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.to eq(expected_main_ci)
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end
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else
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it 'when only main database is configured' do
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expect(described_class.db_config_names(with_schema: gitlab_schema))
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.to eq(expected_main)
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end
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end
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end
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end
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describe '.db_config_share_with' do
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using RSpec::Parameterized::TableSyntax
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where(:db_config_name, :db_config_attributes, :expected_db_config_share_with) do
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'main' | { database_tasks: true } | nil
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'main' | { database_tasks: false } | nil
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'ci' | { database_tasks: true } | nil
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'ci' | { database_tasks: false } | 'main'
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'main_clusterwide' | { database_tasks: true } | nil
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'main_clusterwide' | { database_tasks: false } | 'main'
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'_test_unknown' | { database_tasks: true } | nil
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'_test_unknown' | { database_tasks: false } | 'main'
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end
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with_them do
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it 'returns the expected result' do
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db_config = ActiveRecord::DatabaseConfigurations::HashConfig.new(
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Rails.env,
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db_config_name,
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db_config_attributes
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)
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expect(described_class.db_config_share_with(db_config)).to eq(expected_db_config_share_with)
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end
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end
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end
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describe '.gitlab_schemas_for_connection' do
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it 'does return a valid schema depending on a base model used', :request_store do
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expect(described_class.gitlab_schemas_for_connection(Project.connection)).to include(:gitlab_main, :gitlab_shared)
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expect(described_class.gitlab_schemas_for_connection(Ci::Build.connection)).to include(:gitlab_ci, :gitlab_shared)
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end
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# rubocop:disable Database/MultipleDatabases
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it 'does return gitlab_ci when a ActiveRecord::Base is using CI connection' do
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with_reestablished_active_record_base do
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reconfigure_db_connection(model: ActiveRecord::Base, config_model: Ci::Build)
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expect(
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described_class.gitlab_schemas_for_connection(ActiveRecord::Base.connection)
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).to include(:gitlab_ci, :gitlab_shared)
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end
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end
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# rubocop:enable Database/MultipleDatabases
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it 'does return a valid schema for a replica connection' do
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with_replica_pool_for(ActiveRecord::Base) do |main_replica_pool|
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expect(described_class.gitlab_schemas_for_connection(main_replica_pool.connection)).to include(:gitlab_main, :gitlab_shared)
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end
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with_replica_pool_for(Ci::ApplicationRecord) do |ci_replica_pool|
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expect(described_class.gitlab_schemas_for_connection(ci_replica_pool.connection)).to include(:gitlab_ci, :gitlab_shared)
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end
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end
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def with_replica_pool_for(base_model)
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config = Gitlab::Database::LoadBalancing::Configuration.new(base_model, [base_model.connection_pool.db_config.host])
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lb = Gitlab::Database::LoadBalancing::LoadBalancer.new(config)
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pool = lb.create_replica_connection_pool(1)
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yield pool
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ensure
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pool&.disconnect!
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end
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context "when there's CI connection" do
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before do
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skip_if_multiple_databases_not_setup(:ci)
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end
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context 'when CI uses database_tasks: false does indicate that ci: is subset of main:' do
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before do
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allow(Ci::ApplicationRecord.connection_db_config).to receive(:database_tasks?).and_return(false)
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end
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it 'does return gitlab_ci when accessing via main: connection' do
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expect(described_class.gitlab_schemas_for_connection(Project.connection)).to include(:gitlab_ci, :gitlab_main, :gitlab_shared)
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end
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it 'does not return gitlab_main when accessing via ci: connection' do
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expect(described_class.gitlab_schemas_for_connection(Ci::Build.connection)).to include(:gitlab_ci, :gitlab_shared)
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expect(described_class.gitlab_schemas_for_connection(Ci::Build.connection)).not_to include(:gitlab_main)
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end
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end
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context 'when CI uses database_tasks: true does indicate that ci: has own database' do
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before do
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allow(Ci::ApplicationRecord.connection_db_config).to receive(:database_tasks?).and_return(true)
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end
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it 'does not return gitlab_ci when accessing via main: connection' do
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expect(described_class.gitlab_schemas_for_connection(Project.connection)).to include(:gitlab_main, :gitlab_shared)
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expect(described_class.gitlab_schemas_for_connection(Project.connection)).not_to include(:gitlab_ci)
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end
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it 'does not return gitlab_main when accessing via ci: connection' do
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expect(described_class.gitlab_schemas_for_connection(Ci::Build.connection)).to include(:gitlab_ci, :gitlab_shared)
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expect(described_class.gitlab_schemas_for_connection(Ci::Build.connection)).not_to include(:gitlab_main)
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end
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end
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end
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it 'does return empty for non-adopted connections' do
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new_connection = ActiveRecord::Base.postgresql_connection(
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ActiveRecord::Base.connection_db_config.configuration_hash # rubocop:disable Database/MultipleDatabases
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)
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expect(described_class.gitlab_schemas_for_connection(new_connection)).to be_nil
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ensure
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new_connection&.disconnect!
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end
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it 'returns nil when database model does not exist' do
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connection = Project.connection
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db_config = double(name: 'unknown')
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expect(described_class).to receive(:db_config_for_connection).with(connection).and_return(db_config)
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expect(described_class.gitlab_schemas_for_connection(connection)).to be_nil
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end
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end
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describe '.database_base_models_with_gitlab_shared' do
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before do
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described_class.instance_variable_set(:@database_base_models_with_gitlab_shared, nil)
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end
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it 'memoizes the models' do
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expect { described_class.database_base_models_with_gitlab_shared }.to change { Gitlab::Database.instance_variable_get(:@database_base_models_with_gitlab_shared) }.from(nil)
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end
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end
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describe '.database_base_models_using_load_balancing' do
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before do
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described_class.instance_variable_set(:@database_base_models_using_load_balancing, nil)
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end
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it 'memoizes the models' do
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expect { described_class.database_base_models_using_load_balancing }.to change { Gitlab::Database.instance_variable_get(:@database_base_models_using_load_balancing) }.from(nil)
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end
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end
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describe '.application_record_for_connection' do
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it 'returns ApplicationRecord for main database connection' do
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connection = ApplicationRecord.retrieve_connection
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expect(described_class.application_record_for_connection(connection)).to eq(ApplicationRecord)
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end
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it 'returns Ci::ApplicationRecord for ci database connection' do
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skip_if_multiple_databases_not_setup(:ci)
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connection = Ci::ApplicationRecord.retrieve_connection
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expect(described_class.application_record_for_connection(connection)).to eq(Ci::ApplicationRecord)
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end
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end
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describe '#true_value' do
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it 'returns correct value' do
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expect(described_class.true_value).to eq "'t'"
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end
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end
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describe '#false_value' do
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it 'returns correct value' do
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expect(described_class.false_value).to eq "'f'"
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end
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end
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describe '#sanitize_timestamp' do
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let(:max_timestamp) { Time.at((1 << 31) - 1) }
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subject { described_class.sanitize_timestamp(timestamp) }
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context 'with a timestamp smaller than MAX_TIMESTAMP_VALUE' do
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let(:timestamp) { max_timestamp - 10.years }
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it 'returns the given timestamp' do
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expect(subject).to eq(timestamp)
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end
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end
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context 'with a timestamp larger than MAX_TIMESTAMP_VALUE' do
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let(:timestamp) { max_timestamp + 1.second }
|
|
|
|
it 'returns MAX_TIMESTAMP_VALUE' do
|
|
expect(subject).to eq(max_timestamp)
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '.all_uncached' do
|
|
let(:base_model) do
|
|
Class.new do
|
|
def self.uncached
|
|
@uncached = true
|
|
|
|
yield
|
|
end
|
|
|
|
def self.load_balancer
|
|
lb = Struct.new(:name)
|
|
lb.new(:main)
|
|
end
|
|
end
|
|
end
|
|
|
|
let(:model1) { Class.new(base_model) }
|
|
let(:model2) { Class.new(base_model) }
|
|
|
|
before do
|
|
allow(described_class).to receive(:database_base_models_using_load_balancing)
|
|
.and_return({ model1: model1, model2: model2 }.with_indifferent_access)
|
|
end
|
|
|
|
it 'wraps the given block in uncached calls for each primary connection', :aggregate_failures do
|
|
expect(model1.instance_variable_get(:@uncached)).to be_nil
|
|
expect(model2.instance_variable_get(:@uncached)).to be_nil
|
|
|
|
expect(Gitlab::Database::LoadBalancing::SessionMap.current(::ApplicationRecord.load_balancer))
|
|
.to receive(:use_primary).twice.and_yield
|
|
|
|
expect(model2).to receive(:uncached).and_call_original
|
|
expect(model1).to receive(:uncached).and_call_original
|
|
|
|
yielded_to_block = false
|
|
described_class.all_uncached do
|
|
expect(model1.instance_variable_get(:@uncached)).to be(true)
|
|
expect(model2.instance_variable_get(:@uncached)).to be(true)
|
|
|
|
yielded_to_block = true
|
|
end
|
|
|
|
expect(yielded_to_block).to be(true)
|
|
end
|
|
end
|
|
|
|
describe '.read_only?' do
|
|
it 'returns false' do
|
|
expect(described_class.read_only?).to eq(false)
|
|
end
|
|
end
|
|
|
|
describe '.read_write' do
|
|
it 'returns true' do
|
|
expect(described_class.read_write?).to eq(true)
|
|
end
|
|
end
|
|
|
|
describe 'ActiveRecordBaseTransactionMetrics' do
|
|
def subscribe_events
|
|
events = []
|
|
|
|
begin
|
|
subscriber = ActiveSupport::Notifications.subscribe('transaction.active_record') do |e|
|
|
events << e
|
|
end
|
|
|
|
yield
|
|
ensure
|
|
ActiveSupport::Notifications.unsubscribe(subscriber) if subscriber
|
|
end
|
|
|
|
events
|
|
end
|
|
|
|
context 'without a transaction block' do
|
|
it 'does not publish a transaction event' do
|
|
events = subscribe_events do
|
|
User.first
|
|
end
|
|
|
|
expect(events).to be_empty
|
|
end
|
|
end
|
|
|
|
context 'within a transaction block' do
|
|
it 'publishes a transaction event' do
|
|
events = subscribe_events do
|
|
ApplicationRecord.transaction do
|
|
User.first
|
|
end
|
|
end
|
|
|
|
expect(events.length).to be(1)
|
|
|
|
event = events.first
|
|
expect(event).not_to be_nil
|
|
expect(event.duration).to be > 0.0
|
|
|
|
unless ::Gitlab.next_rails?
|
|
expect(event.payload).to a_hash_including(
|
|
connection: be_a(Gitlab::Database::LoadBalancing::ConnectionProxy)
|
|
)
|
|
end
|
|
end
|
|
end
|
|
|
|
unless ::Gitlab.next_rails?
|
|
context 'within an empty transaction block' do
|
|
it 'publishes a transaction event' do
|
|
events = subscribe_events do
|
|
ApplicationRecord.transaction {}
|
|
Ci::ApplicationRecord.transaction {}
|
|
end
|
|
|
|
expect(events.length).to be(2)
|
|
|
|
event = events.first
|
|
expect(event).not_to be_nil
|
|
expect(event.duration).to be > 0.0
|
|
expect(event.payload).to a_hash_including(
|
|
connection: be_a(Gitlab::Database::LoadBalancing::ConnectionProxy)
|
|
)
|
|
end
|
|
end
|
|
end
|
|
|
|
context 'within a nested transaction block' do
|
|
it 'publishes multiple transaction events' do
|
|
events = subscribe_events do
|
|
ApplicationRecord.transaction do
|
|
User.first
|
|
|
|
ApplicationRecord.transaction(requires_new: true) do
|
|
User.first
|
|
|
|
ApplicationRecord.transaction(requires_new: true) do
|
|
User.first
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
expect(events.length).to be(3)
|
|
|
|
events.each do |event|
|
|
expect(event).not_to be_nil
|
|
expect(event.duration).to be > 0.0
|
|
end
|
|
end
|
|
end
|
|
|
|
context 'within a cancelled transaction block' do
|
|
it 'publishes multiple transaction events' do
|
|
events = subscribe_events do
|
|
ApplicationRecord.transaction do
|
|
User.first
|
|
raise ActiveRecord::Rollback
|
|
end
|
|
end
|
|
|
|
expect(events.length).to be(1)
|
|
|
|
event = events.first
|
|
expect(event).not_to be_nil
|
|
expect(event.duration).to be > 0.0
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '.read_minimum_migration_version' do
|
|
before do
|
|
allow(Dir).to receive(:open).with(Rails.root.join('db/migrate')).and_return(migration_files)
|
|
end
|
|
|
|
context 'valid migration files exist' do
|
|
let(:migration_files) do
|
|
[
|
|
'20211004170422_init_schema.rb',
|
|
'20211005182304_add_users.rb'
|
|
]
|
|
end
|
|
|
|
let(:valid_schema) { 20211004170422 }
|
|
|
|
it 'finds the correct ID' do
|
|
expect(described_class.read_minimum_migration_version).to eq valid_schema
|
|
end
|
|
end
|
|
|
|
context 'no valid migration files exist' do
|
|
let(:migration_files) { ['readme.txt', 'INSTALL'] }
|
|
|
|
it 'returns nil' do
|
|
expect(described_class.read_minimum_migration_version).to be_nil
|
|
end
|
|
end
|
|
end
|
|
end
|