require "cases/helper" require "models/book" require "models/post" require "models/author" require "models/event" module ActiveRecord class AdapterTest < ActiveRecord::TestCase def setup @connection = ActiveRecord::Base.connection end ## # PostgreSQL does not support null bytes in strings unless current_adapter?(:PostgreSQLAdapter) || (current_adapter?(:SQLite3Adapter) && !ActiveRecord::Base.connection.prepared_statements) def test_update_prepared_statement b = Book.create(name: "my \x00 book") b.reload assert_equal "my \x00 book", b.name b.update_attributes(name: "my other \x00 book") b.reload assert_equal "my other \x00 book", b.name end end def test_create_record_with_pk_as_zero Book.create(id: 0) assert_equal 0, Book.find(0).id assert_nothing_raised { Book.destroy(0) } end def test_tables tables = nil ActiveSupport::Deprecation.silence { tables = @connection.tables } assert tables.include?("accounts") assert tables.include?("authors") assert tables.include?("tasks") assert tables.include?("topics") end def test_table_exists? ActiveSupport::Deprecation.silence do assert @connection.table_exists?("accounts") assert !@connection.table_exists?("nonexistingtable") assert !@connection.table_exists?(nil) end end def test_table_exists_checking_both_tables_and_views_is_deprecated assert_deprecated { @connection.table_exists?("accounts") } end def test_data_sources data_sources = @connection.data_sources assert data_sources.include?("accounts") assert data_sources.include?("authors") assert data_sources.include?("tasks") assert data_sources.include?("topics") end def test_data_source_exists? assert @connection.data_source_exists?("accounts") assert @connection.data_source_exists?(:accounts) assert_not @connection.data_source_exists?("nonexistingtable") assert_not @connection.data_source_exists?(nil) 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 assert_equal idx_name, indexes.first.name 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_remove_index_when_name_and_wrong_column_name_specified index_name = "accounts_idx" @connection.add_index :accounts, :firm_id, name: index_name assert_raises ArgumentError do @connection.remove_index :accounts, name: index_name, column: :wrong_column_name end ensure @connection.remove_index(:accounts, name: index_name) 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?(:Mysql2Adapter) 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 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 def test_uniqueness_violations_are_translated_to_specific_exception @connection.execute "INSERT INTO subscribers(nick) VALUES('me')" error = assert_raises(ActiveRecord::RecordNotUnique) do @connection.execute "INSERT INTO subscribers(nick) VALUES('me')" end assert_not_nil error.cause end unless current_adapter?(:SQLite3Adapter) def test_foreign_key_violations_are_translated_to_specific_exception error = 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 assert_not_nil error.cause end def test_foreign_key_violations_are_translated_to_specific_exception_with_validate_false klass_has_fk = Class.new(ActiveRecord::Base) do self.table_name = "fk_test_has_fk" end error = assert_raises(ActiveRecord::InvalidForeignKey) do has_fk = klass_has_fk.new has_fk.fk_id = 1231231231 has_fk.save(validate: false) end assert_not_nil error.cause end def test_value_limit_violations_are_translated_to_specific_exception error = assert_raises(ActiveRecord::ValueTooLong) do Event.create(title: "abcdefgh") end assert_not_nil error.cause 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 delete created record as otherwise disable_referential_integrity will try to enable constraints after executed block # and will fail (at least on Oracle) @connection.execute "DELETE FROM fk_test_has_fk" end end end def test_select_all_always_return_activerecord_result result = @connection.select_all "SELECT * FROM posts" assert result.is_a?(ActiveRecord::Result) end def test_select_methods_passing_a_association_relation author = Author.create!(name: "john") Post.create!(author: author, title: "foo", body: "bar") query = author.posts.where(title: "foo").select(:title) assert_equal({ "title" => "foo" }, @connection.select_one(query.arel, nil, query.bound_attributes)) assert_equal({ "title" => "foo" }, @connection.select_one(query)) assert @connection.select_all(query).is_a?(ActiveRecord::Result) assert_equal "foo", @connection.select_value(query) assert_equal ["foo"], @connection.select_values(query) end def test_select_methods_passing_a_relation Post.create!(title: "foo", body: "bar") query = Post.where(title: "foo").select(:title) assert_equal({ "title" => "foo" }, @connection.select_one(query.arel, nil, query.bound_attributes)) assert_equal({ "title" => "foo" }, @connection.select_one(query)) assert @connection.select_all(query).is_a?(ActiveRecord::Result) assert_equal "foo", @connection.select_value(query) assert_equal ["foo"], @connection.select_values(query) end test "type_to_sql returns a String for unmapped types" do assert_equal "special_db_type", @connection.type_to_sql(:special_db_type) end unless current_adapter?(:PostgreSQLAdapter) def test_log_invalid_encoding error = assert_raise ActiveRecord::StatementInvalid do @connection.send :log, "SELECT 'ы' FROM DUAL" do raise "ы".force_encoding(Encoding::ASCII_8BIT) end end assert_not_nil error.cause end end if current_adapter?(:Mysql2Adapter, :SQLite3Adapter) def test_tables_returning_both_tables_and_views_is_deprecated assert_deprecated { @connection.tables } end end def test_passing_arguments_to_tables_is_deprecated assert_deprecated { @connection.tables(:books) } end end class AdapterTestWithoutTransaction < ActiveRecord::TestCase self.use_transactional_tests = false class Klass < ActiveRecord::Base end def setup Klass.establish_connection :arunit @connection = Klass.connection end teardown do Klass.remove_connection end unless in_memory_db? test "transaction state is reset after a reconnect" do @connection.begin_transaction assert @connection.transaction_open? @connection.reconnect! assert !@connection.transaction_open? end test "transaction state is reset after a disconnect" do @connection.begin_transaction assert @connection.transaction_open? @connection.disconnect! assert !@connection.transaction_open? end end end end