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# Copyright (c) 2008-2012 Phusion
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require 'minitest/autorun'
require 'minitest/around/unit'
require 'active_record'
if ActiveSupport::VERSION::MAJOR == 3
require 'active_support/core_ext/logger'
end
begin
TestCaseClass = MiniTest::Test
rescue NameError
TestCaseClass = MiniTest::Unit::TestCase
end
require 'default_value_for'
puts "\nTesting with Active Record version #{ActiveRecord::VERSION::STRING}\n\n"
ActiveRecord::Base.default_timezone = :local
ActiveRecord::Base.logger = Logger.new(STDERR)
ActiveRecord::Base.logger.level = Logger::WARN
ActiveRecord::Base.establish_connection(
:adapter => RUBY_PLATFORM == 'java' ? 'jdbcsqlite3' : 'sqlite3',
:database => ':memory:'
)
ActiveRecord::Base.connection.create_table(:users, :force => true) do |t|
t.string :username
t.integer :default_number
t.text :settings
end
ActiveRecord::Base.connection.create_table(:books, :force => true) do |t|
t.string :type
t.integer :number
t.integer :count, :null => false, :default => 1
t.integer :user_id
t.timestamp :timestamp
t.text :stuff
t.boolean :flag
end
if defined?(Rails::Railtie)
DefaultValueFor.initialize_railtie
DefaultValueFor.initialize_active_record_extensions
end
class DefaultValuePluginTest < TestCaseClass
def around
Object.const_set(:User, Class.new(ActiveRecord::Base))
Object.const_set(:Book, Class.new(ActiveRecord::Base))
Object.const_set(:Novel, Class.new(Book))
User.has_many :books
Book.belongs_to :user
ActiveRecord::Base.transaction do
yield
raise ActiveRecord::Rollback
end
ensure
Object.send(:remove_const, :User)
Object.send(:remove_const, :Book)
Object.send(:remove_const, :Novel)
ActiveSupport::Dependencies.clear
end
def test_default_value_on_attribute_methods
Book.class_eval do
serialize :stuff
default_value_for :color, :green
def color; (self.stuff || {})[:color]; end
def color=(val)
self.stuff ||= {}
self.stuff[:color] = val
end
end
assert_equal :green, Book.create.color
end
def test_default_value_can_be_passed_as_argument
Book.default_value_for(:number, 1234)
assert_equal 1234, Book.new.number
end
def test_default_value_can_be_passed_as_block
Book.default_value_for(:number) { 1234 }
assert_equal 1234, Book.new.number
end
def test_works_with_create
Book.default_value_for :number, 1234
object = Book.create
refute_nil Book.find_by_number(1234)
# allows nil for existing records
object.update_attribute(:number, nil)
assert_nil Book.find_by_number(1234)
assert_nil Book.find(object.id).number
end
def test_does_not_allow_nil_sets_default_value_on_existing_nils
Book.default_value_for(:number, :allows_nil => false) { 1234 }
object = Book.create
object.update_attribute(:number, nil)
assert_nil Book.find_by_number(1234)
assert_equal 1234, Book.find(object.id).number
end
def test_overwrites_db_default
Book.default_value_for :count, 1234
assert_equal 1234, Book.new.count
end
def test_doesnt_overwrite_values_provided_by_mass_assignment
Book.default_value_for :number, 1234
assert_equal 1, Book.new(:number => 1, :count => 2).number
end
def test_doesnt_overwrite_values_provided_by_multiparameter_assignment
Book.default_value_for :timestamp, Time.mktime(2000, 1, 1)
timestamp = Time.mktime(2009, 1, 1)
object = Book.new('timestamp(1i)' => '2009', 'timestamp(2i)' => '1', 'timestamp(3i)' => '1')
assert_equal timestamp, object.timestamp
end
def test_doesnt_overwrite_values_provided_by_constructor_block
Book.default_value_for :number, 1234
object = Book.new do |x|
x.number = 1
x.count = 2
end
assert_equal 1, object.number
end
def test_doesnt_overwrite_explicitly_provided_nil_values_in_mass_assignment
Book.default_value_for :number, 1234
assert_nil Book.new(:number => nil).number
end
def test_overwrites_explicitly_provided_nil_values_in_mass_assignment
Book.default_value_for :number, :value => 1234, :allows_nil => false
assert_equal 1234, Book.new(:number => nil).number
end
def test_default_values_are_inherited
Book.default_value_for :number, 1234
assert_equal 1234, Novel.new.number
end
def test_default_values_in_superclass_are_saved_in_subclass
Book.default_value_for :number, 1234
Novel.default_value_for :flag, true
object = Novel.create!
assert_equal object.id, Novel.find_by_number(1234).id
assert_equal object.id, Novel.find_by_flag(true).id
end
def test_default_values_in_subclass
Novel.default_value_for :number, 5678
assert_equal 5678, Novel.new.number
assert_nil Book.new.number
end
def test_multiple_default_values_in_subclass_with_default_values_in_parent_class
Book.class_eval do
default_value_for :other_number, nil
attr_accessor :other_number
end
Novel.default_value_for :number, 5678
# Ensure second call in this class doesn't reset _default_attribute_values,
# and also doesn't consider the parent class' _default_attribute_values when
# making that check.
Novel.default_value_for :user_id, 9999
object = Novel.new
assert_nil object.other_number
assert_equal 5678, object.number
assert_equal 9999, object.user_id
end
def test_override_default_values_in_subclass
Book.default_value_for :number, 1234
Novel.default_value_for :number, 5678
assert_equal 5678, Novel.new.number
assert_equal 1234, Book.new.number
end
def test_default_values_in_subclass_do_not_affect_parent_class
Book.default_value_for :number, 1234
Novel.class_eval do
default_value_for :hello, "hi"
attr_accessor :hello
end
assert Book.new
assert !Book._default_attribute_values.include?(:hello)
end
def test_doesnt_set_default_on_saved_records
Book.create(:number => 9876)
Book.default_value_for :number, 1234
assert_equal 9876, Book.first.number
end
def test_also_works_on_attributes_that_arent_database_columns
Book.class_eval do
default_value_for :hello, "hi"
attr_accessor :hello
end
assert_equal 'hi', Book.new.hello
end
def test_works_on_attributes_that_only_have_writers
Book.class_eval do
default_value_for :hello, "hi"
attr_writer :hello
end
assert_equal 'hi', Book.new.instance_variable_get('@hello')
end
def test_doesnt_conflict_with_overrided_initialize_method_in_model_class
Book.class_eval do
def initialize(attrs = {})
@initialized = true
super(:count => 5678)
end
default_value_for :number, 1234
end
object = Book.new
assert_equal 1234, object.number
assert_equal 5678, object.count
assert object.instance_variable_get('@initialized')
end
def test_model_instance_is_passed_to_the_given_block
instance = nil
Book.default_value_for :number do |n|
instance = n
end
object = Book.new
assert_same object.object_id, instance.object_id
end
def test_can_specify_default_value_via_association
user = User.create(:username => 'Kanako', :default_number => 123)
Book.default_value_for :number do |n|
n.user.default_number
end
assert_equal 123, user.books.create!.number
end
def test_default_values
Book.default_values({
:type => "normal",
:number => lambda { 10 + 5 },
:timestamp => lambda {|_| Time.now }
})
object = Book.new
assert_equal("normal", object.type)
assert_equal(15, object.number)
end
def test_default_value_order
Book.default_value_for :count, 5
Book.default_value_for :number do |this|
this.count * 2
end
object = Book.new
assert_equal(5, object.count)
assert_equal(10, object.number)
end
def test_attributes_with_default_values_are_not_marked_as_changed
Book.default_value_for :count, 5
Book.default_value_for :number, 2
object = Book.new
assert(!object.changed?)
assert_equal([], object.changed)
object.type = "foo"
assert(object.changed?)
assert_equal(["type"], object.changed)
end
def test_default_values_are_duplicated
User.default_value_for :username, "hello"
user1 = User.new
user1.username << " world"
user2 = User.new
assert_equal("hello", user2.username)
end
def test_default_values_are_shallow_copied
User.class_eval do
attr_accessor :hash
default_value_for :hash, { 1 => [] }
end
user1 = User.new
user1.hash[1] << 1
user2 = User.new
assert_equal([1], user2.hash[1])
end
def test_constructor_does_not_affect_the_hash_passed_to_it
Book.default_value_for :count, 5
options = { :count => 5, :user_id => 1 }
options_dup = options.dup
Book.new(options)
assert_equal(options_dup, options)
end
def test_subclass_find
Book.default_value_for :number, 5678
n = Novel.create
assert Novel.find(n.id)
end
def test_does_not_see_false_as_blank_at_boolean_columns_for_existing_records
Book.default_value_for(:flag, :allows_nil => false) { true }
object = Book.create
# allows nil for existing records
object.update_attribute(:flag, false)
assert_equal false, Book.find(object.id).flag
end
def test_works_with_nested_attributes
User.accepts_nested_attributes_for :books
User.default_value_for :books do
[Book.create!(:number => 0)]
end
user = User.create! :books_attributes => [{:number => 1}]
assert_equal 1, Book.all.first.number
end
def test_works_with_stored_attribute_accessors_when_initializing_value_that_does_not_allow_nil
User.store :settings, :accessors => :bio
User.default_value_for :bio, :value => 'None given', :allows_nil => false
user = User.create!(:bio => 'This is a bio')
assert_equal 'This is a bio', user.bio
end
if ActiveRecord::VERSION::MAJOR == 3
def test_constructor_ignores_forbidden_mass_assignment_attributes
Book.class_eval do
default_value_for :number, 1234
attr_protected :number
end
object = Book.new(:number => 5678, :count => 987)
assert_equal 1234, object.number
assert_equal 987, object.count
end
def test_constructor_respects_without_protection_option
Book.class_eval do
default_value_for :number, 1234
attr_protected :number
end
object = Book.create!({:number => 5678, :count => 987}, :without_protection => true)
assert_equal 5678, object.number
assert_equal 987, object.count
end
end
end
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