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require "cases/helper"
require "models/post"
require "models/author"
require "models/project"
require "models/developer"
require "models/computer"
require "models/company"
class AssociationCallbacksTest < ActiveRecord::TestCase
fixtures :posts, :authors, :author_addresses, :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_not_includes @david.unchangeable_posts, @authorless
begin
@david.unchangeable_posts << @authorless
rescue Exception
end
assert @david.post_log.empty?
assert_not_includes @david.unchangeable_posts, @authorless
@david.reload
assert_not_includes @david.unchangeable_posts, @authorless
end
end
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