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require 'abstract_unit'
module CallbacksTest
class Phone
include ActiveSupport::Callbacks
define_callbacks :save
set_callback :save, :before, :before_save1
set_callback :save, :after, :after_save1
def before_save1; self.history << :before; end
def after_save1; self.history << :after; end
def save
run_callbacks :save do
raise 'boom'
end
end
def history
@history ||= []
end
end
class Record
include ActiveSupport::Callbacks
define_callbacks :save
def self.before_save(*filters, &blk)
set_callback(:save, :before, *filters, &blk)
end
def self.after_save(*filters, &blk)
set_callback(:save, :after, *filters, &blk)
end
class << self
def callback_symbol(callback_method)
method_name = :"#{callback_method}_method"
define_method(method_name) do
history << [callback_method, :symbol]
end
method_name
end
def callback_string(callback_method)
"history << [#{callback_method.to_sym.inspect}, :string]"
end
def callback_proc(callback_method)
Proc.new { |model| model.history << [callback_method, :proc] }
end
def callback_object(callback_method)
klass = Class.new
klass.send(:define_method, callback_method) do |model|
model.history << [:"#{callback_method}_save", :object]
end
klass.new
end
end
def history
@history ||= []
end
end
class Person < Record
[:before_save, :after_save].each do |callback_method|
callback_method_sym = callback_method.to_sym
send(callback_method, callback_symbol(callback_method_sym))
send(callback_method, callback_string(callback_method_sym))
send(callback_method, callback_proc(callback_method_sym))
send(callback_method, callback_object(callback_method_sym.to_s.gsub(/_save/, '')))
send(callback_method) { |model| model.history << [callback_method_sym, :block] }
end
def save
run_callbacks :save
end
end
class PersonSkipper < Person
skip_callback :save, :before, :before_save_method, :if => :yes
skip_callback :save, :after, :before_save_method, :unless => :yes
skip_callback :save, :after, :before_save_method, :if => :no
skip_callback :save, :before, :before_save_method, :unless => :no
def yes; true; end
def no; false; end
end
class ParentController
include ActiveSupport::Callbacks
define_callbacks :dispatch
set_callback :dispatch, :before, :log, :unless => proc {|c| c.action_name == :index || c.action_name == :show }
set_callback :dispatch, :after, :log2
attr_reader :action_name, :logger
def initialize(action_name)
@action_name, @logger = action_name, []
end
def log
@logger << action_name
end
def log2
@logger << action_name
end
def dispatch
run_callbacks :dispatch do
@logger << "Done"
end
self
end
end
class Child < ParentController
skip_callback :dispatch, :before, :log, :if => proc {|c| c.action_name == :update}
skip_callback :dispatch, :after, :log2
end
class OneTimeCompile < Record
@@starts_true, @@starts_false = true, false
def initialize
super
end
before_save Proc.new {|r| r.history << [:before_save, :starts_true, :if] }, :if => :starts_true
before_save Proc.new {|r| r.history << [:before_save, :starts_false, :if] }, :if => :starts_false
before_save Proc.new {|r| r.history << [:before_save, :starts_true, :unless] }, :unless => :starts_true
before_save Proc.new {|r| r.history << [:before_save, :starts_false, :unless] }, :unless => :starts_false
def starts_true
if @@starts_true
@@starts_true = false
return true
end
@@starts_true
end
def starts_false
unless @@starts_false
@@starts_false = true
return false
end
@@starts_false
end
def save
run_callbacks :save
end
end
class OneTimeCompileTest < ActiveSupport::TestCase
def test_optimized_first_compile
around = OneTimeCompile.new
around.save
assert_equal [
[:before_save, :starts_true, :if],
[:before_save, :starts_true, :unless]
], around.history
end
end
class AfterSaveConditionalPerson < Record
after_save Proc.new { |r| r.history << [:after_save, :string1] }
after_save Proc.new { |r| r.history << [:after_save, :string2] }
def save
run_callbacks :save
end
end
class AfterSaveConditionalPersonCallbackTest < ActiveSupport::TestCase
def test_after_save_runs_in_the_reverse_order
person = AfterSaveConditionalPerson.new
person.save
assert_equal [
[:after_save, :string2],
[:after_save, :string1]
], person.history
end
end
class ConditionalPerson < Record
# proc
before_save Proc.new { |r| r.history << [:before_save, :proc] }, :if => Proc.new { |r| true }
before_save Proc.new { |r| r.history << "b00m" }, :if => Proc.new { |r| false }
before_save Proc.new { |r| r.history << [:before_save, :proc] }, :unless => Proc.new { |r| false }
before_save Proc.new { |r| r.history << "b00m" }, :unless => Proc.new { |r| true }
# symbol
before_save Proc.new { |r| r.history << [:before_save, :symbol] }, :if => :yes
before_save Proc.new { |r| r.history << "b00m" }, :if => :no
before_save Proc.new { |r| r.history << [:before_save, :symbol] }, :unless => :no
before_save Proc.new { |r| r.history << "b00m" }, :unless => :yes
# string
before_save Proc.new { |r| r.history << [:before_save, :string] }, :if => 'yes'
before_save Proc.new { |r| r.history << "b00m" }, :if => 'no'
before_save Proc.new { |r| r.history << [:before_save, :string] }, :unless => 'no'
before_save Proc.new { |r| r.history << "b00m" }, :unless => 'yes'
# Combined if and unless
before_save Proc.new { |r| r.history << [:before_save, :combined_symbol] }, :if => :yes, :unless => :no
before_save Proc.new { |r| r.history << "b00m" }, :if => :yes, :unless => :yes
def yes; true; end
def other_yes; true; end
def no; false; end
def other_no; false; end
def save
run_callbacks :save
end
end
class CleanPerson < ConditionalPerson
reset_callbacks :save
end
class MySuper
include ActiveSupport::Callbacks
define_callbacks :save
end
class AroundPerson < MySuper
attr_reader :history
set_callback :save, :before, :nope, :if => :no
set_callback :save, :before, :nope, :unless => :yes
set_callback :save, :after, :tweedle
set_callback :save, :before, "tweedle_dee"
set_callback :save, :before, proc {|m| m.history << "yup" }
set_callback :save, :before, :nope, :if => proc { false }
set_callback :save, :before, :nope, :unless => proc { true }
set_callback :save, :before, :yup, :if => proc { true }
set_callback :save, :before, :yup, :unless => proc { false }
set_callback :save, :around, :tweedle_dum
set_callback :save, :around, :w0tyes, :if => :yes
set_callback :save, :around, :w0tno, :if => :no
set_callback :save, :around, :tweedle_deedle
def no; false; end
def yes; true; end
def nope
@history << "boom"
end
def yup
@history << "yup"
end
def w0tyes
@history << "w0tyes before"
yield
@history << "w0tyes after"
end
def w0tno
@history << "boom"
yield
end
def tweedle_dee
@history << "tweedle dee"
end
def tweedle_dum
@history << "tweedle dum pre"
yield
@history << "tweedle dum post"
end
def tweedle
@history << "tweedle"
end
def tweedle_deedle
@history << "tweedle deedle pre"
yield
@history << "tweedle deedle post"
end
def initialize
@history = []
end
def save
run_callbacks :save do
@history << "running"
end
end
end
class AroundPersonResult < MySuper
attr_reader :result
set_callback :save, :after, :tweedle_1
set_callback :save, :around, :tweedle_dum
set_callback :save, :after, :tweedle_2
def tweedle_dum
@result = yield
end
def tweedle_1
:tweedle_1
end
def tweedle_2
:tweedle_2
end
def save
run_callbacks :save do
:running
end
end
end
class HyphenatedCallbacks
include ActiveSupport::Callbacks
define_callbacks :save
attr_reader :stuff
set_callback :save, :before, :action, :if => :yes
def yes() true end
def action
@stuff = "ACTION"
end
def save
run_callbacks :save do
@stuff
end
end
end
module ExtendModule
def self.extended(base)
base.class_eval do
set_callback :save, :before, :record3
end
end
def record3
@recorder << 3
end
end
module IncludeModule
def self.included(base)
base.class_eval do
set_callback :save, :before, :record2
end
end
def record2
@recorder << 2
end
end
class ExtendCallbacks
include ActiveSupport::Callbacks
define_callbacks :save
set_callback :save, :before, :record1
include IncludeModule
def save
run_callbacks :save
end
attr_reader :recorder
def initialize
@recorder = []
end
private
def record1
@recorder << 1
end
end
class AroundCallbacksTest < ActiveSupport::TestCase
def test_save_around
around = AroundPerson.new
around.save
assert_equal [
"tweedle dee",
"yup", "yup",
"tweedle dum pre",
"w0tyes before",
"tweedle deedle pre",
"running",
"tweedle deedle post",
"w0tyes after",
"tweedle dum post",
"tweedle"
], around.history
end
end
class AroundCallbackResultTest < ActiveSupport::TestCase
def test_save_around
around = AroundPersonResult.new
around.save
assert_equal :running, around.result
end
end
class SkipCallbacksTest < ActiveSupport::TestCase
def test_skip_person
person = PersonSkipper.new
assert_equal [], person.history
person.save
assert_equal [
[:before_save, :string],
[:before_save, :proc],
[:before_save, :object],
[:before_save, :block],
[:after_save, :block],
[:after_save, :object],
[:after_save, :proc],
[:after_save, :string],
[:after_save, :symbol]
], person.history
end
end
class CallbacksTest < ActiveSupport::TestCase
def test_save_person
person = Person.new
assert_equal [], person.history
person.save
assert_equal [
[:before_save, :symbol],
[:before_save, :string],
[:before_save, :proc],
[:before_save, :object],
[:before_save, :block],
[:after_save, :block],
[:after_save, :object],
[:after_save, :proc],
[:after_save, :string],
[:after_save, :symbol]
], person.history
end
end
class ConditionalCallbackTest < ActiveSupport::TestCase
def test_save_conditional_person
person = ConditionalPerson.new
person.save
assert_equal [
[:before_save, :proc],
[:before_save, :proc],
[:before_save, :symbol],
[:before_save, :symbol],
[:before_save, :string],
[:before_save, :string],
[:before_save, :combined_symbol],
], person.history
end
end
class ResetCallbackTest < ActiveSupport::TestCase
def test_save_conditional_person
person = CleanPerson.new
person.save
assert_equal [], person.history
end
end
class CallbackTerminator
include ActiveSupport::Callbacks
define_callbacks :save, :terminator => "result == :halt"
set_callback :save, :before, :first
set_callback :save, :before, :second
set_callback :save, :around, :around_it
set_callback :save, :before, :third
set_callback :save, :after, :first
set_callback :save, :around, :around_it
set_callback :save, :after, :second
set_callback :save, :around, :around_it
set_callback :save, :after, :third
attr_reader :history, :saved, :halted
def initialize
@history = []
end
def around_it
@history << "around1"
yield
@history << "around2"
end
def first
@history << "first"
end
def second
@history << "second"
:halt
end
def third
@history << "third"
end
def save
run_callbacks :save do
@saved = true
end
end
def halted_callback_hook(filter)
@halted = filter
end
end
class CallbackObject
def before(caller)
caller.record << "before"
end
def before_save(caller)
caller.record << "before save"
end
def around(caller)
caller.record << "around before"
yield
caller.record << "around after"
end
end
class UsingObjectBefore
include ActiveSupport::Callbacks
define_callbacks :save
set_callback :save, :before, CallbackObject.new
attr_accessor :record
def initialize
@record = []
end
def save
run_callbacks :save do
@record << "yielded"
end
end
end
class UsingObjectAround
include ActiveSupport::Callbacks
define_callbacks :save
set_callback :save, :around, CallbackObject.new
attr_accessor :record
def initialize
@record = []
end
def save
run_callbacks :save do
@record << "yielded"
end
end
end
class CustomScopeObject
include ActiveSupport::Callbacks
define_callbacks :save, :scope => [:kind, :name]
set_callback :save, :before, CallbackObject.new
attr_accessor :record
def initialize
@record = []
end
def save
run_callbacks :save do
@record << "yielded"
"CallbackResult"
end
end
end
class OneTwoThreeSave
include ActiveSupport::Callbacks
define_callbacks :save
attr_accessor :record
def initialize
@record = []
end
def save
run_callbacks :save do
@record << "yielded"
end
end
def first
@record << "one"
end
def second
@record << "two"
end
def third
@record << "three"
end
end
class DuplicatingCallbacks < OneTwoThreeSave
set_callback :save, :before, :first, :second
set_callback :save, :before, :first, :third
end
class DuplicatingCallbacksInSameCall < OneTwoThreeSave
set_callback :save, :before, :first, :second, :first, :third
end
class UsingObjectTest < ActiveSupport::TestCase
def test_before_object
u = UsingObjectBefore.new
u.save
assert_equal ["before", "yielded"], u.record
end
def test_around_object
u = UsingObjectAround.new
u.save
assert_equal ["around before", "yielded", "around after"], u.record
end
def test_customized_object
u = CustomScopeObject.new
u.save
assert_equal ["before save", "yielded"], u.record
end
def test_block_result_is_returned
u = CustomScopeObject.new
assert_equal "CallbackResult", u.save
end
end
class CallbackTerminatorTest < ActiveSupport::TestCase
def test_termination
terminator = CallbackTerminator.new
terminator.save
assert_equal ["first", "second", "third", "second", "first"], terminator.history
end
def test_termination_invokes_hook
terminator = CallbackTerminator.new
terminator.save
assert_equal ":second", terminator.halted
end
def test_block_never_called_if_terminated
obj = CallbackTerminator.new
obj.save
assert !obj.saved
end
end
class HyphenatedKeyTest < ActiveSupport::TestCase
def test_save
obj = HyphenatedCallbacks.new
obj.save
assert_equal "ACTION", obj.stuff
end
end
class WriterSkipper < Person
attr_accessor :age
skip_callback :save, :before, :before_save_method, :if => lambda {self.age > 21}
end
class WriterCallbacksTest < ActiveSupport::TestCase
def test_skip_writer
writer = WriterSkipper.new
writer.age = 18
assert_equal [], writer.history
writer.save
assert_equal [
[:before_save, :symbol],
[:before_save, :string],
[:before_save, :proc],
[:before_save, :object],
[:before_save, :block],
[:after_save, :block],
[:after_save, :object],
[:after_save, :proc],
[:after_save, :string],
[:after_save, :symbol]
], writer.history
end
end
class ExtendCallbacksTest < ActiveSupport::TestCase
def test_save
model = ExtendCallbacks.new.extend ExtendModule
model.save
assert_equal [1, 2, 3], model.recorder
end
end
class PerKeyOptionDeprecationTest < ActiveSupport::TestCase
def test_per_key_option_deprecaton
assert_raise NotImplementedError do
Phone.class_eval do
set_callback :save, :before, :before_save1, :per_key => {:if => "true"}
end
end
assert_raise NotImplementedError do
Phone.class_eval do
skip_callback :save, :before, :before_save1, :per_key => {:if => "true"}
end
end
end
end
class ExcludingDuplicatesCallbackTest < ActiveSupport::TestCase
def test_excludes_duplicates_in_separate_calls
model = DuplicatingCallbacks.new
model.save
assert_equal ["two", "one", "three", "yielded"], model.record
end
def test_excludes_duplicates_in_one_call
model = DuplicatingCallbacksInSameCall.new
model.save
assert_equal ["two", "one", "three", "yielded"], model.record
end
end
end
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