require "cases/helper" module ActiveRecord class AdapterTest < ActiveRecord::TestCase def setup @connection = ActiveRecord::Base.connection end def test_tables tables = @connection.tables assert tables.include?("accounts") assert tables.include?("authors") assert tables.include?("tasks") assert tables.include?("topics") end def test_table_exists? assert @connection.table_exists?("accounts") assert !@connection.table_exists?("nonexistingtable") end def test_indexes idx_name = "accounts_idx" if @connection.respond_to?(:indexes) indexes = @connection.indexes("accounts") assert indexes.empty? @connection.add_index :accounts, :firm_id, :name => idx_name indexes = @connection.indexes("accounts") assert_equal "accounts", indexes.first.table # OpenBase does not have the concept of a named index # Indexes are merely properties of columns. assert_equal idx_name, indexes.first.name unless current_adapter?(:OpenBaseAdapter) assert !indexes.first.unique assert_equal ["firm_id"], indexes.first.columns else warn "#{@connection.class} does not respond to #indexes" end ensure @connection.remove_index(:accounts, :name => idx_name) rescue nil end def test_current_database if @connection.respond_to?(:current_database) assert_equal ARTest.connection_config['arunit']['database'], @connection.current_database end end if current_adapter?(:MysqlAdapter) def test_charset assert_not_nil @connection.charset assert_not_equal 'character_set_database', @connection.charset assert_equal @connection.show_variable('character_set_database'), @connection.charset end def test_collation assert_not_nil @connection.collation assert_not_equal 'collation_database', @connection.collation assert_equal @connection.show_variable('collation_database'), @connection.collation end def test_show_nonexistent_variable_returns_nil assert_nil @connection.show_variable('foo_bar_baz') end def test_not_specifying_database_name_for_cross_database_selects begin assert_nothing_raised do ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations['arunit'].except(:database)) config = ARTest.connection_config ActiveRecord::Base.connection.execute( "SELECT #{config['arunit']['database']}.pirates.*, #{config['arunit2']['database']}.courses.* " \ "FROM #{config['arunit']['database']}.pirates, #{config['arunit2']['database']}.courses" ) end ensure ActiveRecord::Base.establish_connection 'arunit' end end end def test_table_alias def @connection.test_table_alias_length() 10; end class << @connection alias_method :old_table_alias_length, :table_alias_length alias_method :table_alias_length, :test_table_alias_length end assert_equal 'posts', @connection.table_alias_for('posts') assert_equal 'posts_comm', @connection.table_alias_for('posts_comments') assert_equal 'dbo_posts', @connection.table_alias_for('dbo.posts') class << @connection remove_method :table_alias_length alias_method :table_alias_length, :old_table_alias_length end end # test resetting sequences in odd tables in postgreSQL if ActiveRecord::Base.connection.respond_to?(:reset_pk_sequence!) require 'models/movie' require 'models/subscriber' def test_reset_empty_table_with_custom_pk Movie.delete_all Movie.connection.reset_pk_sequence! 'movies' assert_equal 1, Movie.create(:name => 'fight club').id end if ActiveRecord::Base.connection.adapter_name != "FrontBase" def test_reset_table_with_non_integer_pk Subscriber.delete_all Subscriber.connection.reset_pk_sequence! 'subscribers' sub = Subscriber.new(:name => 'robert drake') sub.id = 'bob drake' assert_nothing_raised { sub.save! } end end end def test_uniqueness_violations_are_translated_to_specific_exception @connection.execute "INSERT INTO subscribers(nick) VALUES('me')" assert_raises(ActiveRecord::RecordNotUnique) do @connection.execute "INSERT INTO subscribers(nick) VALUES('me')" end end def test_foreign_key_violations_are_translated_to_specific_exception unless @connection.adapter_name == 'SQLite' assert_raises(ActiveRecord::InvalidForeignKey) do # Oracle adapter uses prefetched primary key values from sequence and passes them to connection adapter insert method if @connection.prefetch_primary_key? id_value = @connection.next_sequence_value(@connection.default_sequence_name("fk_test_has_fk", "id")) @connection.execute "INSERT INTO fk_test_has_fk (id, fk_id) VALUES (#{id_value},0)" else @connection.execute "INSERT INTO fk_test_has_fk (fk_id) VALUES (0)" end end end end def test_disable_referential_integrity assert_nothing_raised do @connection.disable_referential_integrity do # Oracle adapter uses prefetched primary key values from sequence and passes them to connection adapter insert method if @connection.prefetch_primary_key? id_value = @connection.next_sequence_value(@connection.default_sequence_name("fk_test_has_fk", "id")) @connection.execute "INSERT INTO fk_test_has_fk (id, fk_id) VALUES (#{id_value},0)" else @connection.execute "INSERT INTO fk_test_has_fk (fk_id) VALUES (0)" end # should deleted created record as otherwise disable_referential_integrity will try to enable contraints after executed block # and will fail (at least on Oracle) @connection.execute "DELETE FROM fk_test_has_fk" end end end end end