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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, :FirebirdAdapter, :OpenBaseAdapter, :OracleAdapter)
def test_default_integers
default = Default.new
assert_instance_of Fixnum, default.positive_integer
assert_equal 1, default.positive_integer
assert_instance_of Fixnum, default.negative_integer
assert_equal(-1, default.negative_integer)
assert_instance_of BigDecimal, default.decimal_number
assert_equal BigDecimal.new("2.78"), default.decimal_number
end
end
if current_adapter?(:PostgreSQLAdapter)
def test_multiline_default_text
# older postgres versions represent the default with escapes ("\\012" for a newline)
assert( "--- []\n\n" == Default.columns_hash['multiline_default'].default ||
"--- []\\012\\012" == Default.columns_hash['multiline_default'].default)
end
end
end
if current_adapter?(:MysqlAdapter)
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 ActiveRecord 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
# MySQL 5 and higher is quirky with not null text/blob columns.
# With MySQL Text/blob columns cannot have defaults. If the column is not
# null MySQL will report that the column has a null default
# but it behaves as though the column had a default of ''
def test_mysql_text_not_null_defaults
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
assert_equal '', klass.columns_hash['non_null_blob'].default
assert_equal '', klass.columns_hash['non_null_text'].default
assert_equal nil, klass.columns_hash['null_blob'].default
assert_equal nil, klass.columns_hash['null_text'].default
assert_nothing_raised do
instance = klass.create!
assert_equal '', instance.non_null_text
assert_equal '', instance.non_null_blob
assert_nil instance.null_text
assert_nil instance.null_blob
end
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
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