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require "cases/helper"
require 'models/post'
require 'models/author'
require 'models/project'
require 'models/developer'
require 'models/company'
class AssociationCallbacksTest < ActiveRecord::TestCase
fixtures :posts, :authors, :projects, :developers
def setup
@david = authors(:david)
@thinking = posts(:thinking)
@authorless = posts(:authorless)
assert @david.post_log.empty?
end
def test_adding_macro_callbacks
@david.posts_with_callbacks << @thinking
assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log
@david.posts_with_callbacks << @thinking
assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}",
"after_adding#{@thinking.id}"], @david.post_log
end
def test_adding_with_proc_callbacks
@david.posts_with_proc_callbacks << @thinking
assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log
@david.posts_with_proc_callbacks << @thinking
assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}",
"after_adding#{@thinking.id}"], @david.post_log
end
def test_removing_with_macro_callbacks
first_post, second_post = @david.posts_with_callbacks[0, 2]
@david.posts_with_callbacks.delete(first_post)
assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log
@david.posts_with_callbacks.delete(second_post)
assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}",
"after_removing#{second_post.id}"], @david.post_log
end
def test_removing_with_proc_callbacks
first_post, second_post = @david.posts_with_callbacks[0, 2]
@david.posts_with_proc_callbacks.delete(first_post)
assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log
@david.posts_with_proc_callbacks.delete(second_post)
assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}",
"after_removing#{second_post.id}"], @david.post_log
end
def test_multiple_callbacks
@david.posts_with_multiple_callbacks << @thinking
assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}",
"after_adding_proc#{@thinking.id}"], @david.post_log
@david.posts_with_multiple_callbacks << @thinking
assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}",
"after_adding_proc#{@thinking.id}", "before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}",
"after_adding#{@thinking.id}", "after_adding_proc#{@thinking.id}"], @david.post_log
end
def test_has_many_callbacks_with_create
morten = Author.create :name => "Morten"
post = morten.posts_with_proc_callbacks.create! :title => "Hello", :body => "How are you doing?"
assert_equal ["before_adding<new>", "after_adding#{post.id}"], morten.post_log
end
def test_has_many_callbacks_with_create!
morten = Author.create! :name => "Morten"
post = morten.posts_with_proc_callbacks.create :title => "Hello", :body => "How are you doing?"
assert_equal ["before_adding<new>", "after_adding#{post.id}"], morten.post_log
end
def test_has_many_callbacks_for_save_on_parent
jack = Author.new :name => "Jack"
jack.posts_with_callbacks.build :title => "Call me back!", :body => "Before you wake up and after you sleep"
callback_log = ["before_adding<new>", "after_adding#{jack.posts_with_callbacks.first.id}"]
assert_equal callback_log, jack.post_log
assert jack.save
assert_equal 1, jack.posts_with_callbacks.count
assert_equal callback_log, jack.post_log
end
def test_has_many_callbacks_for_destroy_on_parent
firm = Firm.create! :name => "Firm"
client = firm.clients.create! :name => "Client"
firm.destroy
assert_equal ["before_remove#{client.id}", "after_remove#{client.id}"], firm.log
end
def test_has_and_belongs_to_many_add_callback
david = developers(:david)
ar = projects(:active_record)
assert ar.developers_log.empty?
ar.developers_with_callbacks << david
assert_equal ["before_adding#{david.id}", "after_adding#{david.id}"], ar.developers_log
ar.developers_with_callbacks << david
assert_equal ["before_adding#{david.id}", "after_adding#{david.id}", "before_adding#{david.id}",
"after_adding#{david.id}"], ar.developers_log
end
def test_has_and_belongs_to_many_before_add_called_before_save
dev = nil
new_dev = nil
klass = Class.new(Project) do
def self.name; Project.name; end
has_and_belongs_to_many :developers_with_callbacks,
:class_name => "Developer",
:before_add => lambda { |o,r|
dev = r
new_dev = r.new_record?
}
end
rec = klass.create!
alice = Developer.new(:name => 'alice')
rec.developers_with_callbacks << alice
assert_equal alice, dev
assert_not_nil new_dev
assert new_dev, "record should not have been saved"
assert_not alice.new_record?
end
def test_has_and_belongs_to_many_after_add_called_after_save
ar = projects(:active_record)
assert ar.developers_log.empty?
alice = Developer.new(:name => 'alice')
ar.developers_with_callbacks << alice
assert_equal"after_adding#{alice.id}", ar.developers_log.last
bob = ar.developers_with_callbacks.create(:name => 'bob')
assert_equal "after_adding#{bob.id}", ar.developers_log.last
ar.developers_with_callbacks.build(:name => 'charlie')
assert_equal "after_adding<new>", ar.developers_log.last
end
def test_has_and_belongs_to_many_remove_callback
david = developers(:david)
jamis = developers(:jamis)
activerecord = projects(:active_record)
assert activerecord.developers_log.empty?
activerecord.developers_with_callbacks.delete(david)
assert_equal ["before_removing#{david.id}", "after_removing#{david.id}"], activerecord.developers_log
activerecord.developers_with_callbacks.delete(jamis)
assert_equal ["before_removing#{david.id}", "after_removing#{david.id}", "before_removing#{jamis.id}",
"after_removing#{jamis.id}"], activerecord.developers_log
end
def test_has_and_belongs_to_many_does_not_fire_callbacks_on_clear
activerecord = projects(:active_record)
assert activerecord.developers_log.empty?
if activerecord.developers_with_callbacks.size == 0
activerecord.developers << developers(:david)
activerecord.developers << developers(:jamis)
activerecord.reload
assert activerecord.developers_with_callbacks.size == 2
end
activerecord.developers_with_callbacks.flat_map {|d| ["before_removing#{d.id}","after_removing#{d.id}"]}.sort
assert activerecord.developers_with_callbacks.clear
assert_predicate activerecord.developers_log, :empty?
end
def test_has_many_and_belongs_to_many_callbacks_for_save_on_parent
project = Project.new :name => "Callbacks"
project.developers_with_callbacks.build :name => "Jack", :salary => 95000
callback_log = ["before_adding<new>", "after_adding<new>"]
assert_equal callback_log, project.developers_log
assert project.save
assert_equal 1, project.developers_with_callbacks.size
assert_equal callback_log, project.developers_log
end
def test_dont_add_if_before_callback_raises_exception
assert !@david.unchangable_posts.include?(@authorless)
begin
@david.unchangable_posts << @authorless
rescue Exception
end
assert @david.post_log.empty?
assert !@david.unchangable_posts.include?(@authorless)
@david.reload
assert !@david.unchangable_posts.include?(@authorless)
end
end
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