require "cases/helper" require 'models/default' require 'models/entrant' class DefaultTest < ActiveRecord::TestCase def test_nil_defaults_for_not_null_columns %w(id name course_id).each do |name| column = Entrant.columns_hash[name] assert !column.null, "#{name} column should be NOT NULL" assert_not column.default, "#{name} column should be DEFAULT 'nil'" end end if current_adapter?(:PostgreSQLAdapter) def test_multiline_default_text record = Default.new # older postgres versions represent the default with escapes ("\\012" for a newline) assert("--- []\n\n" == record.multiline_default || "--- []\\012\\012" == record.multiline_default) end end end class DefaultNumbersTest < ActiveRecord::TestCase class DefaultNumber < ActiveRecord::Base; end setup do @connection = ActiveRecord::Base.connection @connection.create_table :default_numbers do |t| t.integer :positive_integer, default: 7 t.integer :negative_integer, default: -5 t.decimal :decimal_number, default: "2.78", precision: 5, scale: 2 end end teardown do @connection.drop_table :default_numbers, if_exists: true end def test_default_positive_integer record = DefaultNumber.new assert_equal 7, record.positive_integer assert_equal "7", record.positive_integer_before_type_cast end def test_default_negative_integer record = DefaultNumber.new assert_equal (-5), record.negative_integer assert_equal "-5", record.negative_integer_before_type_cast end def test_default_decimal_number record = DefaultNumber.new assert_equal BigDecimal.new("2.78"), record.decimal_number assert_equal "2.78", record.decimal_number_before_type_cast end end class DefaultStringsTest < ActiveRecord::TestCase class DefaultString < ActiveRecord::Base; end setup do @connection = ActiveRecord::Base.connection @connection.create_table :default_strings do |t| t.string :string_col, default: "Smith" t.string :string_col_with_quotes, default: "O'Connor" end DefaultString.reset_column_information end def test_default_strings assert_equal "Smith", DefaultString.new.string_col end def test_default_strings_containing_single_quotes assert_equal "O'Connor", DefaultString.new.string_col_with_quotes end teardown do @connection.drop_table :default_strings end end if current_adapter?(:Mysql2Adapter) class DefaultsTestWithoutTransactionalFixtures < ActiveRecord::TestCase # ActiveRecord::Base#create! (and #save and other related methods) will # open a new transaction. When in transactional tests mode, this will # cause Active Record to create a new savepoint. However, since MySQL doesn't # support DDL transactions, creating a table will result in any created # savepoints to be automatically released. This in turn causes the savepoint # release code in AbstractAdapter#transaction to fail. # # We don't want that to happen, so we disable transactional tests here. self.use_transactional_tests = false def using_strict(strict) connection = ActiveRecord::Base.remove_connection ActiveRecord::Base.establish_connection connection.merge(strict: strict) yield ensure ActiveRecord::Base.remove_connection ActiveRecord::Base.establish_connection connection end # MySQL cannot have defaults on text/blob columns. It reports the # default value as null. # # Despite this, in non-strict mode, MySQL will use an empty string # as the default value of the field, if no other value is # specified. # # Therefore, in non-strict mode, we want column.default to report # an empty string as its default, to be consistent with that. # # In strict mode, column.default should be nil. def test_mysql_text_not_null_defaults_non_strict using_strict(false) do with_text_blob_not_null_table do |klass| record = klass.new assert_equal '', record.non_null_blob assert_equal '', record.non_null_text assert_nil record.null_blob assert_nil record.null_text record.save! record.reload assert_equal '', record.non_null_text assert_equal '', record.non_null_blob assert_nil record.null_text assert_nil record.null_blob end end end def test_mysql_text_not_null_defaults_strict using_strict(true) do with_text_blob_not_null_table do |klass| record = klass.new assert_nil record.non_null_blob assert_nil record.non_null_text assert_nil record.null_blob assert_nil record.null_text assert_raises(ActiveRecord::StatementInvalid) { klass.create } end end end def with_text_blob_not_null_table klass = Class.new(ActiveRecord::Base) klass.table_name = 'test_mysql_text_not_null_defaults' klass.connection.create_table klass.table_name do |t| t.column :non_null_text, :text, :null => false t.column :non_null_blob, :blob, :null => false t.column :null_text, :text, :null => true t.column :null_blob, :blob, :null => true end yield klass ensure klass.connection.drop_table(klass.table_name) rescue nil end # MySQL uses an implicit default 0 rather than NULL unless in strict mode. # We use an implicit NULL so schema.rb is compatible with other databases. def test_mysql_integer_not_null_defaults klass = Class.new(ActiveRecord::Base) klass.table_name = 'test_integer_not_null_default_zero' klass.connection.create_table klass.table_name do |t| t.column :zero, :integer, :null => false, :default => 0 t.column :omit, :integer, :null => false end assert_equal '0', klass.columns_hash['zero'].default assert !klass.columns_hash['zero'].null # 0 in MySQL 4, nil in 5. assert [0, nil].include?(klass.columns_hash['omit'].default) assert !klass.columns_hash['omit'].null assert_raise(ActiveRecord::StatementInvalid) { klass.create! } assert_nothing_raised do instance = klass.create!(:omit => 1) assert_equal 0, instance.zero assert_equal 1, instance.omit end ensure klass.connection.drop_table(klass.table_name) rescue nil end end end