require "cases/helper"
require 'models/default'
require 'models/entrant'
class DefaultTest < ActiveRecord::TestCase
def test_nil_defaults_for_not_null_columns
column_defaults =
if current_adapter?(:MysqlAdapter) && (Mysql.client_version < 50051 || (50100..50122).include?(Mysql.client_version))
{ 'id' => nil, 'name' => '', 'course_id' => nil }
else
{ 'id' => nil, 'name' => nil, 'course_id' => nil }
end
column_defaults.each do |name, default|
column = Entrant.columns_hash[name]
assert !column.null, "#{name} column should be NOT NULL"
assert_equal default, column.default, "#{name} column should be DEFAULT #{default.inspect}"
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 @connection.table_exists? 'default_numbers'
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?(:MysqlAdapter, :Mysql2Adapter)
class DefaultsTestWithoutTransactionalFixtures < ActiveRecord::TestCase
# ActiveRecord::Base#create! (and #save and other related methods) will
# open a new transaction. When in transactional fixtures 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 fixtures here.
self.use_transactional_fixtures = 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
