require 'abstract_unit' require 'rails/initializable' module InitializableTests class Foo include Rails::Initializable attr_accessor :foo, :bar initializer :start do @foo ||= 0 @foo += 1 end end class Bar < Foo initializer :bar do @bar ||= 0 @bar += 1 end end module Word include Rails::Initializable initializer :word do $word = "bird" end end class Parent include Rails::Initializable initializer :one do $arr << 1 end initializer :two do $arr << 2 end end class Child < Parent include Rails::Initializable initializer :three, :before => :one do $arr << 3 end initializer :four, :after => :one, :before => :two do $arr << 4 end end class Parent initializer :five, :before => :one do $arr << 5 end end class Instance include Rails::Initializable initializer :one do $arr << 1 end initializer :two do $arr << 2 end initializer :three do $arr << 3 end initializer :four do $arr << 4 end end class WithArgs include Rails::Initializable initializer :foo do |arg| $with_arg = arg end end class OverriddenInitializer class MoreInitializers include Rails::Initializable initializer :startup, :before => :last do $arr << 3 end initializer :terminate, :after => :first, :before => :startup do $arr << two end def two 2 end end include Rails::Initializable initializer :first do $arr << 1 end initializer :last do $arr << 4 end def self.initializers super + MoreInitializers.new.initializers end end module Interdependent class PluginA include Rails::Initializable initializer "plugin_a.startup" do $arr << 1 end initializer "plugin_a.terminate" do $arr << 4 end end class PluginB include Rails::Initializable initializer "plugin_b.startup", :after => "plugin_a.startup" do $arr << 2 end initializer "plugin_b.terminate", :before => "plugin_a.terminate" do $arr << 3 end end class Application include Rails::Initializable def self.initializers PluginB.initializers + PluginA.initializers end end end class Basic < ActiveSupport::TestCase include ActiveSupport::Testing::Isolation test "initializers run" do foo = Foo.new foo.run_initializers assert_equal 1, foo.foo end test "initializers are inherited" do bar = Bar.new bar.run_initializers assert_equal [1, 1], [bar.foo, bar.bar] end test "initializers only get run once" do foo = Foo.new foo.run_initializers foo.run_initializers assert_equal 1, foo.foo end test "creating initializer without a block raises an error" do assert_raise(ArgumentError) do Class.new do include Rails::Initializable initializer :foo end end end end class BeforeAfter < ActiveSupport::TestCase test "running on parent" do $arr = [] Parent.new.run_initializers assert_equal [5, 1, 2], $arr end test "running on child" do $arr = [] Child.new.run_initializers assert_equal [5, 3, 1, 4, 2], $arr end test "handles dependencies introduced before all initializers are loaded" do $arr = [] Interdependent::Application.new.run_initializers assert_equal [1, 2, 3, 4], $arr end end class InstanceTest < ActiveSupport::TestCase test "running locals" do $arr = [] instance = Instance.new instance.run_initializers assert_equal [1, 2, 3, 4], $arr end end class WithArgsTest < ActiveSupport::TestCase test "running initializers with args" do $with_arg = nil WithArgs.new.run_initializers('foo') assert_equal 'foo', $with_arg end end class OverriddenInitializerTest < ActiveSupport::TestCase test "merges in the initializers from the parent in the right order" do $arr = [] OverriddenInitializer.new.run_initializers assert_equal [1, 2, 3, 4], $arr end end end