367 lines
14 KiB
Ruby
367 lines
14 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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require 'rake'
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RSpec.describe 'gitlab:db namespace rake task' do
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before :all do
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Rake.application.rake_require 'active_record/railties/databases'
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Rake.application.rake_require 'tasks/seed_fu'
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Rake.application.rake_require 'tasks/gitlab/db'
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# empty task as env is already loaded
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Rake::Task.define_task :environment
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end
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before do
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# Stub out db tasks
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allow(Rake::Task['db:migrate']).to receive(:invoke).and_return(true)
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allow(Rake::Task['db:structure:load']).to receive(:invoke).and_return(true)
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allow(Rake::Task['db:seed_fu']).to receive(:invoke).and_return(true)
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end
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describe 'configure' do
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it 'invokes db:migrate when schema has already been loaded' do
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allow(ActiveRecord::Base.connection).to receive(:tables).and_return(%w[table1 table2])
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expect(Rake::Task['db:migrate']).to receive(:invoke)
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expect(Rake::Task['db:structure:load']).not_to receive(:invoke)
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expect(Rake::Task['db:seed_fu']).not_to receive(:invoke)
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expect { run_rake_task('gitlab:db:configure') }.not_to raise_error
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end
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it 'invokes db:shema:load and db:seed_fu when schema is not loaded' do
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allow(ActiveRecord::Base.connection).to receive(:tables).and_return([])
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expect(Rake::Task['db:structure:load']).to receive(:invoke)
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expect(Rake::Task['db:seed_fu']).to receive(:invoke)
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expect(Rake::Task['db:migrate']).not_to receive(:invoke)
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expect { run_rake_task('gitlab:db:configure') }.not_to raise_error
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end
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it 'invokes db:shema:load and db:seed_fu when there is only a single table present' do
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allow(ActiveRecord::Base.connection).to receive(:tables).and_return(['default'])
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expect(Rake::Task['db:structure:load']).to receive(:invoke)
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expect(Rake::Task['db:seed_fu']).to receive(:invoke)
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expect(Rake::Task['db:migrate']).not_to receive(:invoke)
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expect { run_rake_task('gitlab:db:configure') }.not_to raise_error
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end
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it 'does not invoke any other rake tasks during an error' do
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allow(ActiveRecord::Base).to receive(:connection).and_raise(RuntimeError, 'error')
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expect(Rake::Task['db:migrate']).not_to receive(:invoke)
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expect(Rake::Task['db:structure:load']).not_to receive(:invoke)
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expect(Rake::Task['db:seed_fu']).not_to receive(:invoke)
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expect { run_rake_task('gitlab:db:configure') }.to raise_error(RuntimeError, 'error')
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# unstub connection so that the database cleaner still works
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allow(ActiveRecord::Base).to receive(:connection).and_call_original
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end
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it 'does not invoke seed after a failed schema_load' do
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allow(ActiveRecord::Base.connection).to receive(:tables).and_return([])
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allow(Rake::Task['db:structure:load']).to receive(:invoke).and_raise(RuntimeError, 'error')
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expect(Rake::Task['db:structure:load']).to receive(:invoke)
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expect(Rake::Task['db:seed_fu']).not_to receive(:invoke)
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expect(Rake::Task['db:migrate']).not_to receive(:invoke)
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expect { run_rake_task('gitlab:db:configure') }.to raise_error(RuntimeError, 'error')
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end
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context 'SKIP_POST_DEPLOYMENT_MIGRATIONS environment variable set' do
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let(:rails_paths) { { 'db' => ['db'], 'db/migrate' => ['db/migrate'] } }
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before do
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allow(ENV).to receive(:[]).and_call_original
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allow(ENV).to receive(:[]).with('SKIP_POST_DEPLOYMENT_MIGRATIONS').and_return true
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# Our environment has already been loaded, so we need to pretend like post_migrations were not
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allow(Rails.application.config).to receive(:paths).and_return(rails_paths)
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allow(ActiveRecord::Migrator).to receive(:migrations_paths).and_return(rails_paths['db/migrate'].dup)
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end
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it 'adds post deployment migrations before schema load if the schema is not already loaded' do
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allow(ActiveRecord::Base.connection).to receive(:tables).and_return([])
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expect(Gitlab::Database).to receive(:add_post_migrate_path_to_rails).and_call_original
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expect(Rake::Task['db:structure:load']).to receive(:invoke)
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expect(Rake::Task['db:seed_fu']).to receive(:invoke)
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expect(Rake::Task['db:migrate']).not_to receive(:invoke)
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expect { run_rake_task('gitlab:db:configure') }.not_to raise_error
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expect(rails_paths['db/migrate'].include?(File.join(Rails.root, 'db', 'post_migrate'))).to be(true)
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end
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it 'ignores post deployment migrations when schema has already been loaded' do
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allow(ActiveRecord::Base.connection).to receive(:tables).and_return(%w[table1 table2])
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expect(Rake::Task['db:migrate']).to receive(:invoke)
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expect(Gitlab::Database).not_to receive(:add_post_migrate_path_to_rails)
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expect(Rake::Task['db:structure:load']).not_to receive(:invoke)
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expect(Rake::Task['db:seed_fu']).not_to receive(:invoke)
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expect { run_rake_task('gitlab:db:configure') }.not_to raise_error
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expect(rails_paths['db/migrate'].include?(File.join(Rails.root, 'db', 'post_migrate'))).to be(false)
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end
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end
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end
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describe 'unattended' do
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using RSpec::Parameterized::TableSyntax
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where(:schema_migration_table_exists, :needs_migrations, :rake_output) do
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false | false | "unattended_migrations_completed"
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false | true | "unattended_migrations_completed"
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true | false | "unattended_migrations_static"
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true | true | "unattended_migrations_completed"
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end
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before do
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allow(Rake::Task['gitlab:db:configure']).to receive(:invoke).and_return(true)
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end
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with_them do
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it 'outputs changed message for automation after operations happen' do
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allow(ActiveRecord::Base.connection.schema_migration).to receive(:table_exists?).and_return(schema_migration_table_exists)
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allow_any_instance_of(ActiveRecord::MigrationContext).to receive(:needs_migration?).and_return(needs_migrations)
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expect { run_rake_task('gitlab:db:unattended') }. to output(/^#{rake_output}$/).to_stdout
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end
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end
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end
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describe 'clean_structure_sql' do
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let_it_be(:clean_rake_task) { 'gitlab:db:clean_structure_sql' }
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let_it_be(:test_task_name) { 'gitlab:db:_test_multiple_structure_cleans' }
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let_it_be(:structure_file) { 'db/structure.sql' }
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let_it_be(:input) { 'this is structure data' }
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let(:output) { StringIO.new }
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before do
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stub_file_read(structure_file, content: input)
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allow(File).to receive(:open).with(structure_file, any_args).and_yield(output)
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end
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after do
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Rake::Task[test_task_name].clear if Rake::Task.task_defined?(test_task_name)
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end
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it 'can be executed multiple times within another rake task' do
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expect_multiple_executions_of_task(test_task_name, clean_rake_task) do
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expect_next_instance_of(Gitlab::Database::SchemaCleaner) do |cleaner|
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expect(cleaner).to receive(:clean).with(output)
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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 'load_custom_structure' do
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let_it_be(:db_config) { Rails.application.config_for(:database) }
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let_it_be(:custom_load_task) { 'gitlab:db:load_custom_structure' }
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let_it_be(:custom_filepath) { Pathname.new('db/directory') }
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it 'uses the psql command to load the custom structure file' do
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expect(Gitlab::Database::CustomStructure).to receive(:custom_dump_filepath).and_return(custom_filepath)
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expect(Kernel).to receive(:system)
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.with('psql', any_args, custom_filepath.to_path, db_config['database']).and_return(true)
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run_rake_task(custom_load_task)
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end
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it 'raises an error when the call to the psql command fails' do
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expect(Gitlab::Database::CustomStructure).to receive(:custom_dump_filepath).and_return(custom_filepath)
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expect(Kernel).to receive(:system)
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.with('psql', any_args, custom_filepath.to_path, db_config['database']).and_return(nil)
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expect { run_rake_task(custom_load_task) }.to raise_error(/failed to execute:\s*psql/)
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end
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end
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describe 'dump_custom_structure' do
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let_it_be(:test_task_name) { 'gitlab:db:_test_multiple_task_executions' }
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let_it_be(:custom_dump_task) { 'gitlab:db:dump_custom_structure' }
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after do
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Rake::Task[test_task_name].clear if Rake::Task.task_defined?(test_task_name)
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end
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it 'can be executed multiple times within another rake task' do
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expect_multiple_executions_of_task(test_task_name, custom_dump_task) do
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expect_next_instance_of(Gitlab::Database::CustomStructure) do |custom_structure|
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expect(custom_structure).to receive(:dump)
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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 'drop_tables' do
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subject { run_rake_task('gitlab:db:drop_tables') }
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let(:tables) { %w(one two) }
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let(:views) { %w(three four) }
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let(:connection) { ActiveRecord::Base.connection }
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before do
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allow(connection).to receive(:execute).and_return(nil)
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allow(connection).to receive(:tables).and_return(tables)
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allow(connection).to receive(:views).and_return(views)
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end
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it 'drops all tables, except schema_migrations' do
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expect(connection).to receive(:execute).with('DROP TABLE IF EXISTS "one" CASCADE')
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expect(connection).to receive(:execute).with('DROP TABLE IF EXISTS "two" CASCADE')
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subject
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end
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it 'drops all views' do
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expect(connection).to receive(:execute).with('DROP VIEW IF EXISTS "three" CASCADE')
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expect(connection).to receive(:execute).with('DROP VIEW IF EXISTS "four" CASCADE')
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subject
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end
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it 'truncates schema_migrations table' do
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expect(connection).to receive(:execute).with('TRUNCATE schema_migrations')
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subject
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end
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it 'drops extra schemas' do
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Gitlab::Database::EXTRA_SCHEMAS.each do |schema|
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expect(connection).to receive(:execute).with("DROP SCHEMA IF EXISTS \"#{schema}\"")
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end
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subject
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end
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end
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describe 'reindex' do
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let(:reindex) { double('reindex') }
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let(:indexes) { double('indexes') }
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context 'when no index_name is given' do
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it 'uses all candidate indexes' do
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expect(Gitlab::Database::Reindexing).to receive(:candidate_indexes).and_return(indexes)
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expect(Gitlab::Database::Reindexing).to receive(:perform).with(indexes)
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run_rake_task('gitlab:db:reindex')
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end
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end
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context 'with index name given' do
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let(:index) { double('index') }
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before do
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allow(Gitlab::Database::Reindexing).to receive(:candidate_indexes).and_return(indexes)
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end
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it 'calls the index rebuilder with the proper arguments' do
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allow(indexes).to receive(:where).with(identifier: 'public.foo_idx').and_return([index])
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expect(Gitlab::Database::Reindexing).to receive(:perform).with([index])
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run_rake_task('gitlab:db:reindex', '[public.foo_idx]')
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end
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it 'raises an error if the index does not exist' do
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allow(indexes).to receive(:where).with(identifier: 'public.absent_index').and_return([])
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expect { run_rake_task('gitlab:db:reindex', '[public.absent_index]') }.to raise_error(/Index not found/)
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end
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it 'raises an error if the index is not fully qualified with a schema' do
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expect { run_rake_task('gitlab:db:reindex', '[foo_idx]') }.to raise_error(/Index name is not fully qualified/)
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end
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end
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end
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describe 'active' do
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using RSpec::Parameterized::TableSyntax
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let(:task) { 'gitlab:db:active' }
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let(:self_monitoring) { double('self_monitoring') }
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where(:needs_migration, :self_monitoring_project, :project_count, :exit_status, :exit_code) do
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true | nil | nil | 1 | false
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false | :self_monitoring | 1 | 1 | false
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false | nil | 0 | 1 | false
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false | :self_monitoring | 2 | 0 | true
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end
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with_them do
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it 'exits 0 or 1 depending on user modifications to the database' do
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allow_any_instance_of(ActiveRecord::MigrationContext).to receive(:needs_migration?).and_return(needs_migration)
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allow_any_instance_of(ApplicationSetting).to receive(:self_monitoring_project).and_return(self_monitoring_project)
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allow(Project).to receive(:count).and_return(project_count)
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expect { run_rake_task(task) }.to raise_error do |error|
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expect(error).to be_a(SystemExit)
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expect(error.status).to eq(exit_status)
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expect(error.success?).to be(exit_code)
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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 '#migrate_with_instrumentation' do
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subject { run_rake_task('gitlab:db:migration_testing', "[#{filename}]") }
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let(:ctx) { double('ctx', migrations: all_migrations, schema_migration: double, get_all_versions: existing_versions) }
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let(:instrumentation) { instance_double(Gitlab::Database::Migrations::Instrumentation, observations: observations) }
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let(:existing_versions) { [1] }
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let(:all_migrations) { [double('migration1', version: 1), pending_migration] }
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let(:pending_migration) { double('migration2', version: 2) }
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let(:filename) { 'results-file.json'}
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let(:buffer) { StringIO.new }
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let(:observations) { %w[some data] }
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before do
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allow(ActiveRecord::Base.connection).to receive(:migration_context).and_return(ctx)
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allow(Gitlab::Database::Migrations::Instrumentation).to receive(:new).and_return(instrumentation)
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allow(ActiveRecord::Migrator).to receive_message_chain('new.run').with(any_args).with(no_args)
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allow(instrumentation).to receive(:observe).and_yield
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allow(File).to receive(:open).with(filename, 'wb+').and_yield(buffer)
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end
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it 'fails when given no filename argument' do
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expect { run_rake_task('gitlab:db:migration_testing') }.to raise_error(/specify result_file/)
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end
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it 'fails when the given file already exists' do
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expect(File).to receive(:exist?).with(filename).and_return(true)
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expect { subject }.to raise_error(/File exists/)
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end
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it 'instruments the pending migration' do
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expect(instrumentation).to receive(:observe).with(2).and_yield
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subject
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end
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it 'executes the pending migration' do
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expect(ActiveRecord::Migrator).to receive_message_chain('new.run').with(:up, ctx.migrations, ctx.schema_migration, pending_migration.version).with(no_args)
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subject
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end
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it 'writes observations out to JSON file' do
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subject
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expect(buffer.string).to eq(observations.to_json)
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end
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end
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def run_rake_task(task_name, arguments = '')
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Rake::Task[task_name].reenable
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Rake.application.invoke_task("#{task_name}#{arguments}")
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end
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def expect_multiple_executions_of_task(test_task_name, task_to_invoke, count: 2)
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Rake::Task.define_task(test_task_name => :environment) do
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count.times do
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yield
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Rake::Task[task_to_invoke].invoke
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end
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end
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run_rake_task(test_task_name)
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end
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end
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