Class DependenciesTest < Test::Unit::TestCase

# File activesupport/test/dependencies_test.rb, line 340
def failing_test_access_thru_and_upwards_fails
  with_autoloading_fixtures do
    assert ! defined?(ModuleFolder)
    assert_raise(NameError) { ModuleFolder::Object }
    assert_raise(NameError) { ModuleFolder::NestedClass::Object }
    Object.__send__ :remove_const, :ModuleFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 18
def teardown
  ActiveSupport::Dependencies.clear
end

# File activesupport/test/dependencies_test.rb, line 620
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
end

# File activesupport/test/dependencies_test.rb, line 870
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
end

# File activesupport/test/dependencies_test.rb, line 879
def test_autoload_doesnt_shadow_name_error
  with_autoloading_fixtures do
    Object.send(:remove_const, :RaisesNameError) if defined?(::RaisesNameError)
    2.times do |i|
      begin
        ::RaisesNameError::FooBarBaz.object_id
        flunk 'should have raised NameError when autoloaded file referenced FooBarBaz'
      rescue NameError => e
        assert_equal 'uninitialized constant RaisesNameError::FooBarBaz', e.message
      end
      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
  Object.class_eval { remove_const :RaisesNoMethodError if const_defined?(:RaisesNoMethodError) }
end

# File activesupport/test/dependencies_test.rb, line 857
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
  Object.class_eval { remove_const :RaisesNoMethodError if const_defined?(:RaisesNoMethodError) }
end

# File activesupport/test/dependencies_test.rb, line 844
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
  Object.class_eval { remove_const :RaisesNoMethodError if const_defined?(:RaisesNoMethodError) }
end

# File activesupport/test/dependencies_test.rb, line 602
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 ! ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
    assert ! ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")
    assert ! ActiveSupport::Dependencies.autoloaded?(ModuleFolder)

    1 if ModuleFolder::NestedClass # 1 if to avoid warning
    assert ! ActiveSupport::Dependencies.autoloaded?(ModuleFolder::NestedClass)
  end
ensure
  Object.class_eval { remove_const :ModuleFolder }
  ActiveSupport::Dependencies.autoload_once_paths = []
end

# File activesupport/test/dependencies_test.rb, line 586
def test_autoload_once_paths_do_not_add_to_autoloaded_constants
  with_autoloading_fixtures do
    ActiveSupport::Dependencies.autoload_once_paths = ActiveSupport::Dependencies.autoload_paths.dup

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

    1 if ModuleFolder::NestedClass # 1 if to avoid warning
    assert ! ActiveSupport::Dependencies.autoloaded?(ModuleFolder::NestedClass)
  end
ensure
  Object.class_eval { remove_const :ModuleFolder }
  ActiveSupport::Dependencies.autoload_once_paths = []
end

# File activesupport/test/dependencies_test.rb, line 926
def test_autoload_once_paths_should_behave_when_recursively_loading
  with_loading 'dependencies', 'autoloading_fixtures' do
    ActiveSupport::Dependencies.autoload_once_paths = [ActiveSupport::Dependencies.autoload_paths.last]
    assert !defined?(CrossSiteDependency)
    assert_nothing_raised { CrossSiteDepender.nil? }
    assert defined?(CrossSiteDependency)
    assert !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 = []
end

# File activesupport/test/dependencies_test.rb, line 431
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)

    Object.class_eval { remove_const :ModuleFolder }
  end
end

# File activesupport/test/dependencies_test.rb, line 185
def test_class_with_nested_class
  with_autoloading_fixtures do
    assert_kind_of Class, ClassFolder::NestedClass
    Object.__send__ :remove_const, :ClassFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 192
def test_class_with_nested_inline_class
  with_autoloading_fixtures do
    assert_kind_of Class, ClassFolder::InlineClass
    Object.__send__ :remove_const, :ClassFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 199
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
    Object.__send__ :remove_const, :ClassFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 517
def test_const_missing_should_not_double_load
  $counting_loaded_times = 0
  with_autoloading_fixtures do
    require_dependency '././counting_loader'
    assert_equal 1, $counting_loaded_times
    assert_raise(NameError) { ActiveSupport::Dependencies.load_missing_constant Object, :CountingLoader }
    assert_equal 1, $counting_loaded_times
  end
end

# File activesupport/test/dependencies_test.rb, line 527
def test_const_missing_within_anonymous_module
  $counting_loaded_times = 0
  m = Module.new
  m.module_eval "def a() CountingLoader; end"
  extend m
  kls = nil
  with_autoloading_fixtures do
    kls = nil
    assert_nothing_raised { kls = a }
    assert_equal "CountingLoader", kls.name
    assert_equal 1, $counting_loaded_times

    assert_nothing_raised { kls = a }
    assert_equal 1, $counting_loaded_times
  end
end

# File activesupport/test/dependencies_test.rb, line 572
def test_constantize_shortcut_for_cached_constant_lookups
  with_loading 'dependencies' do
    assert_equal ServiceOne, ActiveSupport::Dependencies.constantize("ServiceOne")
  end
end

# File activesupport/test/dependencies_test.rb, line 498
  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
  end

# File activesupport/test/dependencies_test.rb, line 67
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|
      begin
        require_dependency filename
        flunk 'should have loaded dependencies/raises_exception which raises an exception'
      rescue Exception => e
        assert_equal 'Loading me failed, so do not add to loaded or history.', e.message
      end
      assert_equal count + 1, $raises_exception_load_count

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

# File activesupport/test/dependencies_test.rb, line 157
def test_directories_manifest_as_modules_unless_const_defined
  with_autoloading_fixtures do
    assert_kind_of Module, ModuleFolder
    Object.__send__ :remove_const, :ModuleFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 178
def test_directories_may_manifest_as_nested_classes
  with_autoloading_fixtures do
    assert_kind_of Class, ClassFolder
    Object.__send__ :remove_const, :ClassFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 217
def test_doesnt_break_normal_require
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  original_features = $".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, :LoadsConstant)
  $".replace(original_features)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 239
def test_doesnt_break_normal_require_nested
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  original_features = $".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_features)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 470
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 480
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 787
def test_file_with_multiple_constants_and_auto_loading
  with_autoloading_fixtures do
    assert ! defined?(MultipleConstantFile)
    assert ! 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 ! defined?(MultipleConstantFile)
    assert ! defined?(SiblingConstant)
  end
end

# File activesupport/test/dependencies_test.rb, line 769
def test_file_with_multiple_constants_and_require_dependency
  with_autoloading_fixtures do
    assert ! defined?(MultipleConstantFile)
    assert ! 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 ! defined?(MultipleConstantFile)
    assert ! defined?(SiblingConstant)
  end
end

# File activesupport/test/dependencies_test.rb, line 942
def test_hook_called_multiple_times
  assert_nothing_raised { ActiveSupport::Dependencies.hook! }
end

# File activesupport/test/dependencies_test.rb, line 913
def test_load_once_constants_should_not_be_unloaded
  with_autoloading_fixtures do
    ActiveSupport::Dependencies.autoload_once_paths = ActiveSupport::Dependencies.autoload_paths
    ::A.to_s
    assert defined?(A)
    ActiveSupport::Dependencies.clear
    assert defined?(A)
  end
ensure
  ActiveSupport::Dependencies.autoload_once_paths = []
  Object.class_eval { remove_const :A if const_defined?(:A) }
end

# File activesupport/test/dependencies_test.rb, line 332
def test_load_raises_load_error_when_file_not_found
  with_loading do
    assert_raise(LoadError) { load 'this_file_dont_exist_dude.rb' }
  end
ensure
  remove_constants(:LoadedConstant)
end

# File activesupport/test/dependencies_test.rb, line 316
def test_load_returns_true_when_file_found
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  original_features = $".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_features)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 375
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 379
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 389
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 397
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 405
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 63
def test_missing_association_raises_nothing
  assert_nothing_raised { require_association("missing_model") }
end

# File activesupport/test/dependencies_test.rb, line 59
def test_missing_dependency_raises_missing_source_file
  assert_raise(MissingSourceFile) { require_dependency("missing_service") }
end

# File activesupport/test/dependencies_test.rb, line 139
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 164
def test_module_with_nested_class
  with_autoloading_fixtures do
    assert_kind_of Class, ModuleFolder::NestedClass
    Object.__send__ :remove_const, :ModuleFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 171
def test_module_with_nested_inline_class
  with_autoloading_fixtures do
    assert_kind_of Class, ModuleFolder::InlineClass
    Object.__send__ :remove_const, :ModuleFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 125
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 208
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
    Object.__send__ :remove_const, :ModuleFolder
  end
end

# File activesupport/test/dependencies_test.rb, line 825
def test_nested_file_with_multiple_constants_and_auto_loading
  with_autoloading_fixtures do
    assert ! defined?(ClassFolder::NestedClass)
    assert ! 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 ! defined?(ClassFolder::NestedClass)
    assert ! defined?(ClassFolder::SiblingClass)
  end
end

# File activesupport/test/dependencies_test.rb, line 806
def test_nested_file_with_multiple_constants_and_require_dependency
  with_autoloading_fixtures do
    assert ! defined?(ClassFolder::NestedClass)
    assert ! 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 ! defined?(ClassFolder::NestedClass)
    assert ! defined?(ClassFolder::SiblingClass)
  end
end

# File activesupport/test/dependencies_test.rb, line 578
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 719
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
  Object.class_eval { remove_const :M }
end

# File activesupport/test/dependencies_test.rb, line 738
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
  Object.class_eval { remove_const :M }
end

# File activesupport/test/dependencies_test.rb, line 691
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
  Object.class_eval { remove_const :Hello }
end

# File activesupport/test/dependencies_test.rb, line 763
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 756
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 700
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
  %w(OuterBefore Inner OuterAfter).each do |name|
    Object.class_eval { remove_const name if const_defined?(name) }
  end
end

# File activesupport/test/dependencies_test.rb, line 686
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 148
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 349
def test_non_existing_const_raises_name_error_with_fully_qualified_name
  with_autoloading_fixtures do
    begin
      A::DoesNotExist.nil?
      flunk "No raise!!"
    rescue NameError => e
      assert_equal "uninitialized constant A::DoesNotExist", e.message
    end
    begin
      A::B::DoesNotExist.nil?
      flunk "No raise!!"
    rescue NameError => e
      assert_equal "uninitialized constant A::B::DoesNotExist", e.message
    end
  end
end

# File activesupport/test/dependencies_test.rb, line 628
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
  Object.class_eval { remove_const :E }
end

# File activesupport/test/dependencies_test.rb, line 412
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?("::Test::Unit::TestCase")
end

# File activesupport/test/dependencies_test.rb, line 427
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 419
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 460
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 558
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 ! defined?(ServiceOne)

    service_one_second = ServiceOne
    assert_not_equal service_one_first, c.get("ServiceOne")
    assert_equal service_one_second, c.get("ServiceOne")
  end
end

# File activesupport/test/dependencies_test.rb, line 544
def test_removal_from_tree_should_be_detected
  with_loading 'dependencies' do
    c = ServiceOne
    ActiveSupport::Dependencies.clear
    assert ! defined?(ServiceOne)
    begin
      ActiveSupport::Dependencies.load_missing_constant(c, :FakeMissing)
      flunk "Expected exception"
    rescue ArgumentError => e
      assert_match %r{ServiceOne has been removed from the module tree}i, e.message
    end
  end
end

# File activesupport/test/dependencies_test.rb, line 903
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 ! defined?(DeleteMe::OrMe)
  assert defined?(DeleteMe)
  ActiveSupport::Dependencies.remove_constant "::DeleteMe"
  assert ! defined?(DeleteMe)
end

# File activesupport/test/dependencies_test.rb, line 308
def test_require_raises_load_error_when_file_not_found
  with_loading do
    assert_raise(LoadError) { require 'this_file_dont_exist_dude' }
  end
ensure
  remove_constants(:LoadedConstant)
end

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

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

# File activesupport/test/dependencies_test.rb, line 261
def test_require_returns_true_when_file_not_yet_required
  path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
  original_path = $:.dup
  original_features = $".dup
  $:.push(path)

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

# File activesupport/test/dependencies_test.rb, line 276
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
  original_features = $".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_features)
  $:.replace(original_path)
end

# File activesupport/test/dependencies_test.rb, line 366
def test_smart_name_error_strings
  begin
    Object.module_eval "ImaginaryObject"
    flunk "No raise!!"
  rescue NameError => e
    assert e.message.include?("uninitialized constant ImaginaryObject")
  end
end

# File activesupport/test/dependencies_test.rb, line 51
def test_tracking_identical_loaded_files
  require_dependency 'dependencies/service_one'
  require_dependency 'dependencies/service_one'
  assert_equal 1, ActiveSupport::Dependencies.loaded.size
ensure
  Object.send(:remove_const, :ServiceOne) if Object.const_defined?(:ServiceOne)
end

# File activesupport/test/dependencies_test.rb, line 42
def test_tracking_loaded_files
  require_dependency 'dependencies/service_one'
  require_dependency 'dependencies/service_two'
  assert_equal 2, ActiveSupport::Dependencies.loaded.size
ensure
  Object.send(:remove_const, :ServiceOne) if Object.const_defined?(:ServiceOne)
  Object.send(:remove_const, :ServiceTwo) if Object.const_defined?(:ServiceTwo)
end

# File activesupport/test/dependencies_test.rb, line 946
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 646
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 675
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
  Object.class_eval { remove_const :C } if defined?(C)
end

# File activesupport/test/dependencies_test.rb, line 660
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 667
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
end

# File activesupport/test/dependencies_test.rb, line 87
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 !ActiveSupport::Dependencies.loaded.include?(expanded)
    assert !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 !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 !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

# File activesupport/test/dependencies_test.rb, line 38
def with_autoloading_fixtures(&block)
  with_loading 'autoloading_fixtures', &block
end

# File activesupport/test/dependencies_test.rb, line 22
def with_loading(*from)
  old_mechanism, ActiveSupport::Dependencies.mechanism = ActiveSupport::Dependencies.mechanism, :load
  this_dir = File.dirname(__FILE__)
  parent_dir = File.dirname(this_dir)
  path_copy = $LOAD_PATH.dup
  $LOAD_PATH.unshift(parent_dir) unless $LOAD_PATH.include?(parent_dir)
  prior_autoload_paths = ActiveSupport::Dependencies.autoload_paths
  ActiveSupport::Dependencies.autoload_paths = from.collect { |f| "#{this_dir}/#{f}" }
  yield
ensure
  $LOAD_PATH.replace(path_copy)
  ActiveSupport::Dependencies.autoload_paths = prior_autoload_paths
  ActiveSupport::Dependencies.mechanism = old_mechanism
  ActiveSupport::Dependencies.explicitly_unloadable_constants = []
end