Class DependenciesTest < ActiveSupport::TestCase

# File activesupport/test/dependencies_test.rb, line 379
def failing_test_access_thru_and_upwards_fails
  with_autoloading_fixtures do
    assert_not defined?(ModuleFolder)
    assert_raise(NameError) { ModuleFolder::Object }
    assert_raise(NameError) { ModuleFolder::NestedClass::Object }
  end
ensure
  remove_constants(:ModuleFolder)
end

# File activesupport/test/dependencies_test.rb, line 1004
def test_access_unloaded_constants_for_reload
  with_autoloading_fixtures do
    assert_kind_of Module, A
    assert_kind_of Class, A::B # Necessary to load A::B for the test
    ActiveSupport::Dependencies.mark_for_unload(A::B)
    ActiveSupport::Dependencies.remove_unloadable_constants!

    A::B # Make sure no circular dependency error
  end
ensure
  remove_constants(:A)
end

# File activesupport/test/dependencies_test.rb, line 657
def test_application_should_special_case_application_controller
  with_autoloading_fixtures do
    require_dependency 'application'
    assert_equal 10, ApplicationController
    assert ActiveSupport::Dependencies.autoloaded?(:ApplicationController)
  end
ensure
  remove_constants(:ApplicationController)
end

# File activesupport/test/dependencies_test.rb, line 923
def test_autoload_doesnt_shadow_error_when_mechanism_not_set_to_load
  with_autoloading_fixtures do
    ActiveSupport::Dependencies.mechanism = :require
    2.times do
      assert_raise(NameError) { assert_equal 123, ::RaisesNameError::FooBarBaz }
    end
  end
ensure
  remove_constants(:RaisesNameError)
end

# File activesupport/test/dependencies_test.rb, line 934
def test_autoload_doesnt_shadow_name_error
  with_autoloading_fixtures do
    2.times do
      e = assert_raise NameError do
        ::RaisesNameError::FooBarBaz.object_id
      end
      assert_equal 'uninitialized constant RaisesNameError::FooBarBaz', e.message
      assert !defined?(::RaisesNameError), "::RaisesNameError is defined but it should have failed!"
    end

    assert !defined?(::RaisesNameError)
    2.times do
      assert_raise(NameError) { ::RaisesNameError }
      assert !defined?(::RaisesNameError), "::RaisesNameError is defined but it should have failed!"
    end
  end
ensure
  remove_constants(:RaisesNameError)
end

# File activesupport/test/dependencies_test.rb, line 911
def test_autoload_doesnt_shadow_no_method_error_with_absolute_constant
  with_autoloading_fixtures do
    assert !defined?(::RaisesNoMethodError), "::RaisesNoMethodError is defined but it hasn't been referenced yet!"
    2.times do
      assert_raise(NoMethodError) { ::RaisesNoMethodError }
      assert !defined?(::RaisesNoMethodError), "::RaisesNoMethodError is defined but it should have failed!"
    end
  end
ensure
  remove_constants(:RaisesNoMethodError)
end

# File activesupport/test/dependencies_test.rb, line 899
def test_autoload_doesnt_shadow_no_method_error_with_relative_constant
  with_autoloading_fixtures do
    assert !defined?(::RaisesNoMethodError), "::RaisesNoMethodError is defined but it hasn't been referenced yet!"
    2.times do
      assert_raise(NoMethodError) { RaisesNoMethodError }
      assert !defined?(::RaisesNoMethodError), "::RaisesNoMethodError is defined but it should have failed!"
    end
  end
ensure
  remove_constants(:RaisesNoMethodError)
end

# File activesupport/test/dependencies_test.rb, line 639
def test_autoload_once_pathnames_do_not_add_to_autoloaded_constants
  with_autoloading_fixtures do
    pathnames = ActiveSupport::Dependencies.autoload_paths.collect{|p| Pathname.new(p)}
    ActiveSupport::Dependencies.autoload_paths = pathnames
    ActiveSupport::Dependencies.autoload_once_paths = pathnames

    assert_not ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
    assert_not ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")
    assert_not ActiveSupport::Dependencies.autoloaded?(ModuleFolder)

    1 if ModuleFolder::NestedClass # 1 if to avoid warning
    assert_not ActiveSupport::Dependencies.autoloaded?(ModuleFolder::NestedClass)
  end
ensure
  remove_constants(:ModuleFolder)
  ActiveSupport::Dependencies.autoload_once_paths = []
end

# File activesupport/test/dependencies_test.rb, line 622
def test_autoload_once_paths_do_not_add_to_autoloaded_constants
  old_path = ActiveSupport::Dependencies.autoload_once_paths
  with_autoloading_fixtures do
    ActiveSupport::Dependencies.autoload_once_paths = ActiveSupport::Dependencies.autoload_paths.dup

    assert_not ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
    assert_not ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")
    assert_not ActiveSupport::Dependencies.autoloaded?(ModuleFolder)

    1 if ModuleFolder::NestedClass # 1 if to avoid warning
    assert_not ActiveSupport::Dependencies.autoloaded?(ModuleFolder::NestedClass)
  end
ensure
  remove_constants(:ModuleFolder)
  ActiveSupport::Dependencies.autoload_once_paths = old_path
end

# File activesupport/test/dependencies_test.rb, line 1018
def test_autoload_once_paths_should_behave_when_recursively_loading
  old_path = ActiveSupport::Dependencies.autoload_once_paths
  with_loading 'dependencies', 'autoloading_fixtures' do
    ActiveSupport::Dependencies.autoload_once_paths = [ActiveSupport::Dependencies.autoload_paths.last]
    assert_not defined?(CrossSiteDependency)
    assert_nothing_raised { CrossSiteDepender.nil? }
    assert defined?(CrossSiteDependency)
    assert_not ActiveSupport::Dependencies.autoloaded?(CrossSiteDependency),
      "CrossSiteDependency shouldn't be marked as autoloaded!"
    ActiveSupport::Dependencies.clear
    assert defined?(CrossSiteDependency),
      "CrossSiteDependency shouldn't have been unloaded!"
  end
ensure
  ActiveSupport::Dependencies.autoload_once_paths = old_path
  remove_constants(:CrossSiteDependency)
end

# File activesupport/test/dependencies_test.rb, line 466
def test_autoloaded?
  with_autoloading_fixtures do
    assert ! ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
    assert ! ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")

    assert ActiveSupport::Dependencies.autoloaded?(ModuleFolder)

    assert ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
    assert ! ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")

    assert ActiveSupport::Dependencies.autoloaded?(ModuleFolder::NestedClass)

    assert ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
    assert ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")

    assert ActiveSupport::Dependencies.autoloaded?("::ModuleFolder")
    assert ActiveSupport::Dependencies.autoloaded?(:ModuleFolder)

    # Anonymous modules aren't autoloaded.
    assert !ActiveSupport::Dependencies.autoloaded?(Module.new)

    nil_name = Module.new
    def nil_name.name() nil end
    assert !ActiveSupport::Dependencies.autoloaded?(nil_name)
  end
ensure
  remove_constants(:ModuleFolder)
end

# File activesupport/test/dependencies_test.rb, line 155
def test_circular_autoloading_detection
  with_autoloading_fixtures do
    e = assert_raise(RuntimeError) { Circular1 }
    assert_equal "Circular dependency detected while autoloading constant Circular1", e.message
  end
end

# File activesupport/test/dependencies_test.rb, line 237
def test_class_with_nested_class
  with_autoloading_fixtures do
    assert_kind_of Class, ClassFolder::NestedClass
  end
ensure
  remove_constants(:ClassFolder)
end

# File activesupport/test/dependencies_test.rb, line 245
def test_class_with_nested_inline_class
  with_autoloading_fixtures do
    assert_kind_of Class, ClassFolder::InlineClass
  end
ensure
  remove_constants(:ClassFolder)
end

# File activesupport/test/dependencies_test.rb, line 253
def test_class_with_nested_inline_subclass_of_parent
  with_autoloading_fixtures do
    assert_kind_of Class, ClassFolder::ClassFolderSubclass
    assert_kind_of Class, ClassFolder
    assert_equal 'indeed', ClassFolder::ClassFolderSubclass::ConstantInClassFolder
  end
ensure
  remove_constants(:ClassFolder)
end

# File activesupport/test/dependencies_test.rb, line 554
def test_const_missing_in_anonymous_modules_loads_top_level_constants
  with_autoloading_fixtures do
    # class_eval STRING pushes the class to the nesting of the eval'ed code.
    klass = Class.new.class_eval "E"
    assert_equal E, klass
  end
ensure
  remove_constants(:E)
end

# File activesupport/test/dependencies_test.rb, line 564
def test_const_missing_in_anonymous_modules_raises_if_the_constant_belongs_to_Object
  with_autoloading_fixtures do
    require_dependency 'e'

    mod = Module.new
    e = assert_raise(NameError) { mod::E }
    assert_equal 'E cannot be autoloaded from an anonymous class or module', e.message
    assert_equal :E, e.name
  end
ensure
  remove_constants(:E)
end

# File activesupport/test/dependencies_test.rb, line 606
def test_constantize_shortcut_for_cached_constant_lookups
  with_loading 'dependencies' do
    assert_equal ServiceOne, ActiveSupport::Dependencies.constantize("ServiceOne")
  end
ensure
  remove_constants(:ServiceOne)
end

# File activesupport/test/dependencies_test.rb, line 684
def test_constants_in_capitalized_nesting_marked_as_autoloaded
  with_autoloading_fixtures do
    ActiveSupport::Dependencies.load_missing_constant(HTML, "SomeClass")

    assert ActiveSupport::Dependencies.autoloaded?("HTML::SomeClass")
  end
ensure
  remove_constants(:HTML)
end

# File activesupport/test/dependencies_test.rb, line 533
  def test_custom_const_missing_should_work
    Object.module_eval "      module ModuleWithCustomConstMissing
        def self.const_missing(name)
          const_set name, name.to_s.hash
        end

        module A
        end
      end
", __FILE__, __LINE__ + 1

    with_autoloading_fixtures do
      assert_kind_of Integer, ::ModuleWithCustomConstMissing::B
      assert_kind_of Module, ::ModuleWithCustomConstMissing::A
      assert_kind_of String, ::ModuleWithCustomConstMissing::A::B
    end
  ensure
    remove_constants(:ModuleWithCustomConstMissing)
  end

# File activesupport/test/dependencies_test.rb, line 30
def test_depend_on_path
  skip "LoadError#path does not exist" if RUBY_VERSION < '2.0.0'

  expected = assert_raises(LoadError) do
    Kernel.require 'omgwtfbbq'
  end

  e = assert_raises(LoadError) do
    ActiveSupport::Dependencies.depend_on 'omgwtfbbq'
  end
  assert_equal expected.path, e.path
end

# File activesupport/test/dependencies_test.rb, line 97
def test_dependency_which_raises_doesnt_blindly_call_blame_file!
  with_loading do
    filename = 'dependencies/raises_exception_without_blame_file'
    assert_raises(Exception) { require_dependency filename }
  end
end

# File activesupport/test/dependencies_test.rb, line 78
def test_dependency_which_raises_exception_isnt_added_to_loaded_set
  with_loading do
    filename = 'dependencies/raises_exception'
    $raises_exception_load_count = 0

    5.times do |count|
      e = assert_raise Exception, 'should have loaded dependencies/raises_exception which raises an exception' do
        require_dependency filename
      end

      assert_equal 'Loading me failed, so do not add to loaded or history.', e.message
      assert_equal count + 1, $raises_exception_load_count

      assert_not ActiveSupport::Dependencies.loaded.include?(filename)
      assert_not ActiveSupport::Dependencies.history.include?(filename)
    end
  end
end

# File activesupport/test/dependencies_test.rb, line 205
def test_directories_manifest_as_modules_unless_const_defined
  with_autoloading_fixtures do
    assert_kind_of Module, ModuleFolder
  end
ensure
  remove_constants(:ModuleFolder)
end

# File activesupport/test/dependencies_test.rb, line 229
def test_directories_may_manifest_as_nested_classes
  with_autoloading_fixtures do
    assert_kind_of Class, ClassFolder
  end
ensure
  remove_constants(:ClassFolder)
end

# File activesupport/test/dependencies_test.rb, line 273
def test_doesnt_break_normal_require
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  $:.push(path)
  with_autoloading_fixtures do
    # The _ = assignments are to prevent warnings
    _ = RequiresConstant
    assert defined?(RequiresConstant)
    assert defined?(LoadedConstant)
    ActiveSupport::Dependencies.clear
    _ = RequiresConstant
    assert defined?(RequiresConstant)
    assert defined?(LoadedConstant)
  end
ensure
  remove_constants(:RequiresConstant, :LoadedConstant)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 292
def test_doesnt_break_normal_require_nested
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  $:.push(path)

  with_autoloading_fixtures do
    # The _ = assignments are to prevent warnings
    _ = LoadsConstant
    assert defined?(LoadsConstant)
    assert defined?(LoadedConstant)
    ActiveSupport::Dependencies.clear
    _ = LoadsConstant
    assert defined?(LoadsConstant)
    assert defined?(LoadedConstant)
  end
ensure
  remove_constants(:RequiresConstant, :LoadedConstant, :LoadsConstant)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 162
def test_ensures_the_expected_constant_is_defined
  with_autoloading_fixtures do
    e = assert_raise(LoadError) { Typo }
    assert_match %r{Unable to autoload constant Typo, expected .*activesupport/test/autoloading_fixtures/typo.rb to define it}, e.message
  end
end

# File activesupport/test/dependencies_test.rb, line 505
def test_file_search
  with_loading 'dependencies' do
    root = ActiveSupport::Dependencies.autoload_paths.first
    assert_equal nil, ActiveSupport::Dependencies.search_for_file('service_three')
    assert_equal nil, ActiveSupport::Dependencies.search_for_file('service_three.rb')
    assert_equal root + '/service_one.rb', ActiveSupport::Dependencies.search_for_file('service_one')
    assert_equal root + '/service_one.rb', ActiveSupport::Dependencies.search_for_file('service_one.rb')
  end
end

# File activesupport/test/dependencies_test.rb, line 515
def test_file_search_uses_first_in_load_path
  with_loading 'dependencies', 'autoloading_fixtures' do
    deps, autoload = ActiveSupport::Dependencies.autoload_paths
    assert_match /dependencies/, deps
    assert_match /autoloading_fixtures/, autoload

    assert_equal deps + '/conflict.rb', ActiveSupport::Dependencies.search_for_file('conflict')
  end
  with_loading 'autoloading_fixtures', 'dependencies' do
    autoload, deps = ActiveSupport::Dependencies.autoload_paths
    assert_match /dependencies/, deps
    assert_match /autoloading_fixtures/, autoload

    assert_equal autoload + '/conflict.rb', ActiveSupport::Dependencies.search_for_file('conflict')
  end

end

# File activesupport/test/dependencies_test.rb, line 836
def test_file_with_multiple_constants_and_auto_loading
  with_autoloading_fixtures do
    assert_not defined?(MultipleConstantFile)
    assert_not defined?(SiblingConstant)

    assert_equal 10, MultipleConstantFile

    assert defined?(MultipleConstantFile)
    assert defined?(SiblingConstant)
    assert ActiveSupport::Dependencies.autoloaded?(:MultipleConstantFile)
    assert ActiveSupport::Dependencies.autoloaded?(:SiblingConstant)

    ActiveSupport::Dependencies.clear

    assert_not defined?(MultipleConstantFile)
    assert_not defined?(SiblingConstant)
  end
ensure
  remove_constants(:MultipleConstantFile, :SiblingConstant)
end

# File activesupport/test/dependencies_test.rb, line 817
def test_file_with_multiple_constants_and_require_dependency
  with_autoloading_fixtures do
    assert_not defined?(MultipleConstantFile)
    assert_not defined?(SiblingConstant)

    require_dependency 'multiple_constant_file'
    assert defined?(MultipleConstantFile)
    assert defined?(SiblingConstant)
    assert ActiveSupport::Dependencies.autoloaded?(:MultipleConstantFile)
    assert ActiveSupport::Dependencies.autoloaded?(:SiblingConstant)
    ActiveSupport::Dependencies.clear

    assert_not defined?(MultipleConstantFile)
    assert_not defined?(SiblingConstant)
  end
ensure
  remove_constants(:MultipleConstantFile, :SiblingConstant)
end

# File activesupport/test/dependencies_test.rb, line 1036
def test_hook_called_multiple_times
  assert_nothing_raised { ActiveSupport::Dependencies.hook! }
end

# File activesupport/test/dependencies_test.rb, line 1040
def test_load_and_require_stay_private
  assert Object.private_methods.include?(:load)
  assert Object.private_methods.include?(:require)

  ActiveSupport::Dependencies.unhook!

  assert Object.private_methods.include?(:load)
  assert Object.private_methods.include?(:require)
ensure
  ActiveSupport::Dependencies.hook!
end

# File activesupport/test/dependencies_test.rb, line 990
def test_load_once_constants_should_not_be_unloaded
  old_path = ActiveSupport::Dependencies.autoload_once_paths
  with_autoloading_fixtures do
    ActiveSupport::Dependencies.autoload_once_paths = ActiveSupport::Dependencies.autoload_paths
    _ = ::A # assignment to silence parse-time warning "possibly useless use of :: in void context"
    assert defined?(A)
    ActiveSupport::Dependencies.clear
    assert defined?(A)
  end
ensure
  ActiveSupport::Dependencies.autoload_once_paths = old_path
  remove_constants(:A)
end

# File activesupport/test/dependencies_test.rb, line 373
def test_load_raises_load_error_when_file_not_found
  with_loading do
    assert_raise(LoadError) { load 'this_file_dont_exist_dude.rb' }
  end
end

# File activesupport/test/dependencies_test.rb, line 359
def test_load_returns_true_when_file_found
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  $:.push(path)

  with_loading do
    assert_equal true, load('loaded_constant.rb')
    assert_equal true, load('loaded_constant.rb')
  end
ensure
  remove_constants(:LoadedConstant)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 410
def test_loadable_constants_for_path_should_handle_empty_autoloads
  assert_equal [], ActiveSupport::Dependencies.loadable_constants_for_path('hello')
end

# File activesupport/test/dependencies_test.rb, line 414
def test_loadable_constants_for_path_should_handle_relative_paths
  fake_root = 'dependencies'
  relative_root = File.dirname(__FILE__) + '/dependencies'
  ['', '/'].each do |suffix|
    with_loading fake_root + suffix do
      assert_equal ["A::B"], ActiveSupport::Dependencies.loadable_constants_for_path(relative_root + '/a/b')
    end
  end
end

# File activesupport/test/dependencies_test.rb, line 424
def test_loadable_constants_for_path_should_provide_all_results
  fake_root = '/usr/apps/backpack'
  with_loading fake_root, fake_root + '/lib' do
    root = ActiveSupport::Dependencies.autoload_paths.first
    assert_equal ["Lib::A::B", "A::B"], ActiveSupport::Dependencies.loadable_constants_for_path(root + '/lib/a/b')
  end
end

# File activesupport/test/dependencies_test.rb, line 432
def test_loadable_constants_for_path_should_uniq_results
  fake_root = '/usr/apps/backpack/lib'
  with_loading fake_root, fake_root + '/' do
    root = ActiveSupport::Dependencies.autoload_paths.first
    assert_equal ["A::B"], ActiveSupport::Dependencies.loadable_constants_for_path(root + '/a/b')
  end
end

# File activesupport/test/dependencies_test.rb, line 440
def test_loadable_constants_with_load_path_without_trailing_slash
  path = File.dirname(__FILE__) + '/autoloading_fixtures/class_folder/inline_class.rb'
  with_loading 'autoloading_fixtures/class/' do
    assert_equal [], ActiveSupport::Dependencies.loadable_constants_for_path(path)
  end
end

# File activesupport/test/dependencies_test.rb, line 74
def test_missing_dependency_raises_missing_source_file
  assert_raise(MissingSourceFile) { require_dependency("missing_service") }
end

# File activesupport/test/dependencies_test.rb, line 187
def test_module_loading
  with_autoloading_fixtures do
    assert_kind_of Module, A
    assert_kind_of Class, A::B
    assert_kind_of Class, A::C::D
    assert_kind_of Class, A::C::E::F
  end
end

# File activesupport/test/dependencies_test.rb, line 213
def test_module_with_nested_class
  with_autoloading_fixtures do
    assert_kind_of Class, ModuleFolder::NestedClass
  end
ensure
  remove_constants(:ModuleFolder)
end

# File activesupport/test/dependencies_test.rb, line 221
def test_module_with_nested_inline_class
  with_autoloading_fixtures do
    assert_kind_of Class, ModuleFolder::InlineClass
  end
ensure
  remove_constants(:ModuleFolder)
end

# File activesupport/test/dependencies_test.rb, line 141
def test_mutual_dependencies_dont_infinite_loop
  with_loading 'dependencies' do
    $mutual_dependencies_count = 0
    assert_nothing_raised { require_dependency 'mutual_one' }
    assert_equal 2, $mutual_dependencies_count

    ActiveSupport::Dependencies.clear

    $mutual_dependencies_count = 0
    assert_nothing_raised { require_dependency 'mutual_two' }
    assert_equal 2, $mutual_dependencies_count
  end
end

# File activesupport/test/dependencies_test.rb, line 263
def test_nested_class_can_access_sibling
  with_autoloading_fixtures do
    sibling = ModuleFolder::NestedClass.class_eval "NestedSibling"
    assert defined?(ModuleFolder::NestedSibling)
    assert_equal ModuleFolder::NestedSibling, sibling
  end
ensure
  remove_constants(:ModuleFolder)
end

# File activesupport/test/dependencies_test.rb, line 878
def test_nested_file_with_multiple_constants_and_auto_loading
  with_autoloading_fixtures do
    assert_not defined?(ClassFolder::NestedClass)
    assert_not defined?(ClassFolder::SiblingClass)

    assert_kind_of Class, ClassFolder::NestedClass

    assert defined?(ClassFolder::NestedClass)
    assert defined?(ClassFolder::SiblingClass)
    assert ActiveSupport::Dependencies.autoloaded?("ClassFolder::NestedClass")
    assert ActiveSupport::Dependencies.autoloaded?("ClassFolder::SiblingClass")

    ActiveSupport::Dependencies.clear

    assert_not defined?(ClassFolder::NestedClass)
    assert_not defined?(ClassFolder::SiblingClass)
  end
ensure
  remove_constants(:ClassFolder)
end

# File activesupport/test/dependencies_test.rb, line 857
def test_nested_file_with_multiple_constants_and_require_dependency
  with_autoloading_fixtures do
    assert_not defined?(ClassFolder::NestedClass)
    assert_not defined?(ClassFolder::SiblingClass)

    require_dependency 'class_folder/nested_class'

    assert defined?(ClassFolder::NestedClass)
    assert defined?(ClassFolder::SiblingClass)
    assert ActiveSupport::Dependencies.autoloaded?("ClassFolder::NestedClass")
    assert ActiveSupport::Dependencies.autoloaded?("ClassFolder::SiblingClass")

    ActiveSupport::Dependencies.clear

    assert_not defined?(ClassFolder::NestedClass)
    assert_not defined?(ClassFolder::SiblingClass)
  end
ensure
  remove_constants(:ClassFolder)
end

# File activesupport/test/dependencies_test.rb, line 614
def test_nested_load_error_isnt_rescued
  with_loading 'dependencies' do
    assert_raise(MissingSourceFile) do
      RequiresNonexistent1
    end
  end
end

# File activesupport/test/dependencies_test.rb, line 767
def test_new_constants_in_module
  Object.const_set :M, Module.new

  outer = ActiveSupport::Dependencies.new_constants_in(M) do
    M.const_set :OuterBefore, 10

    inner = ActiveSupport::Dependencies.new_constants_in(M) do
      M.const_set :Inner, 20
    end
    assert_equal ["M::Inner"], inner

    M.const_set :OuterAfter, 30
  end
  assert_equal ["M::OuterAfter", "M::OuterBefore"], outer.sort
  assert ActiveSupport::Dependencies.constant_watch_stack.all? {|k,v| v.empty? }
ensure
  remove_constants(:M)
end

# File activesupport/test/dependencies_test.rb, line 786
def test_new_constants_in_module_using_name
  outer = ActiveSupport::Dependencies.new_constants_in(:M) do
    Object.const_set :M, Module.new
    M.const_set :OuterBefore, 10

    inner = ActiveSupport::Dependencies.new_constants_in(:M) do
      M.const_set :Inner, 20
    end
    assert_equal ["M::Inner"], inner

    M.const_set :OuterAfter, 30
  end
  assert_equal ["M::OuterAfter", "M::OuterBefore"], outer.sort
  assert ActiveSupport::Dependencies.constant_watch_stack.all? {|k,v| v.empty? }
ensure
  remove_constants(:M)
end

# File activesupport/test/dependencies_test.rb, line 741
def test_new_constants_in_with_a_single_constant
  assert_equal ["Hello"], ActiveSupport::Dependencies.new_constants_in(Object) {
                            Object.const_set :Hello, 10
                          }.map(&:to_s)
  assert ActiveSupport::Dependencies.constant_watch_stack.all? {|k,v| v.empty? }
ensure
  remove_constants(:Hello)
end

# File activesupport/test/dependencies_test.rb, line 811
def test_new_constants_in_with_illegal_module_name_raises_correct_error
  assert_raise(NameError) do
    ActiveSupport::Dependencies.new_constants_in("Illegal-Name") {}
  end
end

# File activesupport/test/dependencies_test.rb, line 804
def test_new_constants_in_with_inherited_constants
  m = ActiveSupport::Dependencies.new_constants_in(:Object) do
    Object.class_eval { include ModuleWithConstant }
  end
  assert_equal [], m
end

# File activesupport/test/dependencies_test.rb, line 750
def test_new_constants_in_with_nesting
  outer = ActiveSupport::Dependencies.new_constants_in(Object) do
    Object.const_set :OuterBefore, 10

    assert_equal ["Inner"], ActiveSupport::Dependencies.new_constants_in(Object) {
                              Object.const_set :Inner, 20
                            }.map(&:to_s)

    Object.const_set :OuterAfter, 30
  end

  assert_equal ["OuterAfter", "OuterBefore"], outer.sort.map(&:to_s)
  assert ActiveSupport::Dependencies.constant_watch_stack.all? {|k,v| v.empty? }
ensure
  remove_constants(:OuterBefore, :Inner, :OuterAfter)
end

# File activesupport/test/dependencies_test.rb, line 736
def test_new_contants_in_without_constants
  assert_equal [], (ActiveSupport::Dependencies.new_constants_in(Object) { })
  assert ActiveSupport::Dependencies.constant_watch_stack.all? {|k,v| v.empty? }
end

# File activesupport/test/dependencies_test.rb, line 196
def test_non_existing_const_raises_name_error
  with_autoloading_fixtures do
    assert_raise(NameError) { DoesNotExist }
    assert_raise(NameError) { NoModule::DoesNotExist }
    assert_raise(NameError) { A::DoesNotExist }
    assert_raise(NameError) { A::B::DoesNotExist }
  end
end

# File activesupport/test/dependencies_test.rb, line 389
def test_non_existing_const_raises_name_error_with_fully_qualified_name
  with_autoloading_fixtures do
    e = assert_raise(NameError) { A::DoesNotExist.nil? }
    assert_equal "uninitialized constant A::DoesNotExist", e.message
    assert_equal :DoesNotExist, e.name

    e = assert_raise(NameError) { A::B::DoesNotExist.nil? }
    assert_equal "uninitialized constant A::B::DoesNotExist", e.message
    assert_equal :DoesNotExist, e.name
  end
ensure
  remove_constants(:A)
end

# File activesupport/test/dependencies_test.rb, line 667
def test_preexisting_constants_are_not_marked_as_autoloaded
  with_autoloading_fixtures do
    require_dependency 'e'
    assert ActiveSupport::Dependencies.autoloaded?(:E)
    ActiveSupport::Dependencies.clear
  end

  Object.const_set :E, Class.new
  with_autoloading_fixtures do
    require_dependency 'e'
    assert ! ActiveSupport::Dependencies.autoloaded?(:E), "E shouldn't be marked autoloaded!"
    ActiveSupport::Dependencies.clear
  end
ensure
  remove_constants(:E)
end

# File activesupport/test/dependencies_test.rb, line 447
def test_qualified_const_defined
  assert ActiveSupport::Dependencies.qualified_const_defined?("Object")
  assert ActiveSupport::Dependencies.qualified_const_defined?("::Object")
  assert ActiveSupport::Dependencies.qualified_const_defined?("::Object::Kernel")
  assert ActiveSupport::Dependencies.qualified_const_defined?("::ActiveSupport::TestCase")
end

# File activesupport/test/dependencies_test.rb, line 462
def test_qualified_const_defined_explodes_with_invalid_const_name
  assert_raises(NameError) { ActiveSupport::Dependencies.qualified_const_defined?("invalid") }
end

# File activesupport/test/dependencies_test.rb, line 454
def test_qualified_const_defined_should_not_call_const_missing
  ModuleWithMissing.missing_count = 0
  assert ! ActiveSupport::Dependencies.qualified_const_defined?("ModuleWithMissing::A")
  assert_equal 0, ModuleWithMissing.missing_count
  assert ! ActiveSupport::Dependencies.qualified_const_defined?("ModuleWithMissing::A::B")
  assert_equal 0, ModuleWithMissing.missing_count
end

# File activesupport/test/dependencies_test.rb, line 495
def test_qualified_name_for
  assert_equal "A", ActiveSupport::Dependencies.qualified_name_for(Object, :A)
  assert_equal "A", ActiveSupport::Dependencies.qualified_name_for(:Object, :A)
  assert_equal "A", ActiveSupport::Dependencies.qualified_name_for("Object", :A)
  assert_equal "A", ActiveSupport::Dependencies.qualified_name_for("::Object", :A)

  assert_equal "ActiveSupport::Dependencies::A", ActiveSupport::Dependencies.qualified_name_for(:'ActiveSupport::Dependencies', :A)
  assert_equal "ActiveSupport::Dependencies::A", ActiveSupport::Dependencies.qualified_name_for(ActiveSupport::Dependencies, :A)
end

# File activesupport/test/dependencies_test.rb, line 591
def test_references_should_work
  with_loading 'dependencies' do
    c = ActiveSupport::Dependencies.reference("ServiceOne")
    service_one_first = ServiceOne
    assert_equal service_one_first, c.get("ServiceOne")
    ActiveSupport::Dependencies.clear
    assert_not defined?(ServiceOne)
    service_one_second = ServiceOne
    assert_not_equal service_one_first, c.get("ServiceOne")
    assert_equal service_one_second, c.get("ServiceOne")
  end
ensure
  remove_constants(:ServiceOne)
end

# File activesupport/test/dependencies_test.rb, line 577
def test_removal_from_tree_should_be_detected
  with_loading 'dependencies' do
    c = ServiceOne
    ActiveSupport::Dependencies.clear
    assert_not defined?(ServiceOne)
    e = assert_raise ArgumentError do
      ActiveSupport::Dependencies.load_missing_constant(c, :FakeMissing)
    end
    assert_match %r{ServiceOne has been removed from the module tree}i, e.message
  end
ensure
  remove_constants(:ServiceOne)
end

# File activesupport/test/dependencies_test.rb, line 978
def test_remove_constant_does_not_autoload_already_removed_parents_as_a_side_effect
  with_autoloading_fixtures do
    _ = ::A    # assignment to silence parse-time warning "possibly useless use of :: in void context"
    _ = ::A::B # assignment to silence parse-time warning "possibly useless use of :: in void context"
    ActiveSupport::Dependencies.remove_constant('A')
    ActiveSupport::Dependencies.remove_constant('A::B')
    assert_not defined?(A)
  end
ensure
  remove_constants(:A)
end

# File activesupport/test/dependencies_test.rb, line 966
def test_remove_constant_does_not_trigger_loading_autoloads
  constant = 'ShouldNotBeAutoloaded'
  Object.class_eval do
    autoload constant, File.expand_path('../autoloading_fixtures/should_not_be_required', __FILE__)
  end

  assert_nil ActiveSupport::Dependencies.remove_constant(constant), "Kernel#autoload has been triggered by remove_constant"
  assert_not defined?(ShouldNotBeAutoloaded)
ensure
  remove_constants(constant)
end

# File activesupport/test/dependencies_test.rb, line 954
def test_remove_constant_handles_double_colon_at_start
  Object.const_set 'DeleteMe', Module.new
  DeleteMe.const_set 'OrMe', Module.new
  ActiveSupport::Dependencies.remove_constant "::DeleteMe::OrMe"
  assert_not defined?(DeleteMe::OrMe)
  assert defined?(DeleteMe)
  ActiveSupport::Dependencies.remove_constant "::DeleteMe"
  assert_not defined?(DeleteMe)
ensure
  remove_constants(:DeleteMe)
end

# File activesupport/test/dependencies_test.rb, line 43
def test_require_dependency_accepts_an_object_which_implements_to_path
  o = Object.new
  def o.to_path; 'dependencies/service_one'; end
  assert_nothing_raised {
    require_dependency o
  }
  assert defined?(ServiceOne)
ensure
  remove_constants(:ServiceOne)
end

# File activesupport/test/dependencies_test.rb, line 169
def test_require_dependency_does_not_assume_any_particular_constant_is_defined
  with_autoloading_fixtures do
    require_dependency 'typo'
    assert_equal 1, TypO
  end
end

# File activesupport/test/dependencies_test.rb, line 177
def test_require_dependency_interaction_with_autoloading
  with_autoloading_fixtures do
    require_dependency 'typo'
    assert_equal 1, TypO

    e = assert_raise(LoadError) { Typo }
    assert_match %r{Unable to autoload constant Typo, expected .*activesupport/test/autoloading_fixtures/typo.rb to define it}, e.message
  end
end

# File activesupport/test/dependencies_test.rb, line 353
def test_require_raises_load_error_when_file_not_found
  with_loading do
    assert_raise(LoadError) { require 'this_file_dont_exist_dude' }
  end
end

# File activesupport/test/dependencies_test.rb, line 339
def test_require_returns_false_when_file_already_required
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  $:.push(path)

  with_loading do
    require 'loaded_constant'
    assert_equal false, require('loaded_constant')
  end
ensure
  remove_constants(:LoadedConstant)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 312
def test_require_returns_true_when_file_not_yet_required
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  $:.push(path)

  with_loading do
    assert_equal true, require('loaded_constant')
  end
ensure
  remove_constants(:LoadedConstant)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 325
def test_require_returns_true_when_file_not_yet_required_even_when_no_new_constants_added
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  $:.push(path)

  with_loading do
    Object.module_eval "module LoadedConstant; end"
    assert_equal true, require('loaded_constant')
  end
ensure
  remove_constants(:LoadedConstant)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 403
def test_smart_name_error_strings
  e = assert_raise NameError do
    Object.module_eval "ImaginaryObject"
  end
  assert_includes "uninitialized constant ImaginaryObject", e.message
end

# File activesupport/test/dependencies_test.rb, line 64
def test_tracking_identical_loaded_files
  with_loading do
    require_dependency 'dependencies/service_one'
    require_dependency 'dependencies/service_one'
    assert_equal 1, ActiveSupport::Dependencies.loaded.size
  end
ensure
  remove_constants(:ServiceOne)
end

# File activesupport/test/dependencies_test.rb, line 54
def test_tracking_loaded_files
  with_loading do
    require_dependency 'dependencies/service_one'
    require_dependency 'dependencies/service_two'
    assert_equal 2, ActiveSupport::Dependencies.loaded.size
  end
ensure
  remove_constants(:ServiceOne, :ServiceTwo)
end

# File activesupport/test/dependencies_test.rb, line 1052
def test_unhook
  ActiveSupport::Dependencies.unhook!
  assert !Module.new.respond_to?(:const_missing_without_dependencies)
  assert !Module.new.respond_to?(:load_without_new_constant_marking)
ensure
  ActiveSupport::Dependencies.hook!
end

# File activesupport/test/dependencies_test.rb, line 694
def test_unloadable
  with_autoloading_fixtures do
    Object.const_set :M, Module.new
    M.unloadable

    ActiveSupport::Dependencies.clear
    assert ! defined?(M)

    Object.const_set :M, Module.new
    ActiveSupport::Dependencies.clear
    assert ! defined?(M), "Dependencies should unload unloadable constants each time"
  end
end

# File activesupport/test/dependencies_test.rb, line 725
def test_unloadable_constants_should_receive_callback
  Object.const_set :C, Class.new
  C.unloadable
  C.expects(:before_remove_const).once
  assert C.respond_to?(:before_remove_const)
  ActiveSupport::Dependencies.clear
  assert !defined?(C)
ensure
  remove_constants(:C)
end

# File activesupport/test/dependencies_test.rb, line 708
def test_unloadable_should_fail_with_anonymous_modules
  with_autoloading_fixtures do
    m = Module.new
    assert_raise(ArgumentError) { m.unloadable }
  end
end

# File activesupport/test/dependencies_test.rb, line 715
def test_unloadable_should_return_change_flag
  with_autoloading_fixtures do
    Object.const_set :M, Module.new
    assert_equal true, M.unloadable
    assert_equal false, M.unloadable
  end
ensure
  remove_constants(:M)
end

# File activesupport/test/dependencies_test.rb, line 104
def test_warnings_should_be_enabled_on_first_load
  with_loading 'dependencies' do
    old_warnings, ActiveSupport::Dependencies.warnings_on_first_load = ActiveSupport::Dependencies.warnings_on_first_load, true
    filename = "check_warnings"
    expanded = File.expand_path("#{File.dirname(__FILE__)}/dependencies/#{filename}")
    $check_warnings_load_count = 0

    assert_not ActiveSupport::Dependencies.loaded.include?(expanded)
    assert_not ActiveSupport::Dependencies.history.include?(expanded)

    silence_warnings { require_dependency filename }
    assert_equal 1, $check_warnings_load_count
    assert_equal true, $checked_verbose, 'On first load warnings should be enabled.'

    assert ActiveSupport::Dependencies.loaded.include?(expanded)
    ActiveSupport::Dependencies.clear
    assert_not ActiveSupport::Dependencies.loaded.include?(expanded)
    assert ActiveSupport::Dependencies.history.include?(expanded)

    silence_warnings { require_dependency filename }
    assert_equal 2, $check_warnings_load_count
    assert_equal nil, $checked_verbose, 'After first load warnings should be left alone.'

    assert ActiveSupport::Dependencies.loaded.include?(expanded)
    ActiveSupport::Dependencies.clear
    assert_not ActiveSupport::Dependencies.loaded.include?(expanded)
    assert ActiveSupport::Dependencies.history.include?(expanded)

    enable_warnings { require_dependency filename }
    assert_equal 3, $check_warnings_load_count
    assert_equal true, $checked_verbose, 'After first load warnings should be left alone.'

    assert ActiveSupport::Dependencies.loaded.include?(expanded)
    ActiveSupport::Dependencies.warnings_on_first_load = old_warnings
  end
end