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require 'cases/helper'
require 'models/developer'
require 'models/owner'
require 'models/pet'
require 'models/toy'
class TimestampTest < ActiveRecord::TestCase
fixtures :developers, :owners, :pets, :toys
def setup
@developer = Developer.first
@previously_updated_at = @developer.updated_at
end
def test_saving_a_changed_record_updates_its_timestamp
@developer.name = "Jack Bauer"
@developer.save!
assert_not_equal @previously_updated_at, @developer.updated_at
end
def test_saving_a_unchanged_record_doesnt_update_its_timestamp
@developer.save!
assert_equal @previously_updated_at, @developer.updated_at
end
def test_touching_a_record_updates_its_timestamp
previous_salary = @developer.salary
@developer.salary = previous_salary + 10000
@developer.touch
assert_not_equal @previously_updated_at, @developer.updated_at
assert_equal previous_salary + 10000, @developer.salary
assert @developer.salary_changed?, 'developer salary should have changed'
assert @developer.changed?, 'developer should be marked as changed'
@developer.reload
assert_equal previous_salary, @developer.salary
end
def test_saving_when_record_timestamps_is_false_doesnt_update_its_timestamp
Developer.record_timestamps = false
@developer.name = "John Smith"
@developer.save!
assert_equal @previously_updated_at, @developer.updated_at
ensure
Developer.record_timestamps = true
end
def test_touching_a_different_attribute
previously_created_at = @developer.created_at
@developer.touch(:created_at)
assert !@developer.created_at_changed? , 'created_at should not be changed'
assert !@developer.changed?, 'record should not be changed'
assert_not_equal previously_created_at, @developer.created_at
assert_not_equal @previously_updated_at, @developer.updated_at
end
def test_saving_a_record_with_a_belongs_to_that_specifies_touching_the_parent_should_update_the_parent_updated_at
pet = Pet.first
owner = pet.owner
previously_owner_updated_at = owner.updated_at
pet.name = "Fluffy the Third"
pet.save
assert_not_equal previously_owner_updated_at, pet.owner.updated_at
end
def test_destroying_a_record_with_a_belongs_to_that_specifies_touching_the_parent_should_update_the_parent_updated_at
pet = Pet.first
owner = pet.owner
previously_owner_updated_at = owner.updated_at
pet.destroy
assert_not_equal previously_owner_updated_at, pet.owner.updated_at
end
def test_saving_a_record_with_a_belongs_to_that_specifies_touching_a_specific_attribute_the_parent_should_update_that_attribute
Pet.belongs_to :owner, :touch => :happy_at
pet = Pet.first
owner = pet.owner
previously_owner_happy_at = owner.happy_at
pet.name = "Fluffy the Third"
pet.save
assert_not_equal previously_owner_happy_at, pet.owner.happy_at
ensure
Pet.belongs_to :owner, :touch => true
end
def test_touching_a_record_with_a_belongs_to_that_uses_a_counter_cache_should_update_the_parent
Pet.belongs_to :owner, :counter_cache => :use_count, :touch => true
pet = Pet.first
owner = pet.owner
owner.update_attribute(:happy_at, (time = 3.days.ago))
previously_owner_updated_at = owner.updated_at
pet.name = "I'm a parrot"
pet.save
assert_not_equal previously_owner_updated_at, pet.owner.updated_at
ensure
Pet.belongs_to :owner, :touch => true
end
def test_touching_a_record_touches_parent_record_and_grandparent_record
Toy.belongs_to :pet, :touch => true
Pet.belongs_to :owner, :touch => true
toy = Toy.first
pet = toy.pet
owner = pet.owner
owner.update_attribute(:updated_at, (time = 3.days.ago))
toy.touch
owner.reload
assert_not_equal time, owner.updated_at
ensure
Toy.belongs_to :pet
end
end
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