mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
988 lines
33 KiB
Ruby
988 lines
33 KiB
Ruby
require 'abstract_unit'
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require 'pp'
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require 'active_support/dependencies'
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module ModuleWithMissing
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mattr_accessor :missing_count
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def self.const_missing(name)
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self.missing_count += 1
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name
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end
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end
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module ModuleWithConstant
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InheritedConstant = "Hello"
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end
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class DependenciesTest < ActiveSupport::TestCase
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def teardown
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ActiveSupport::Dependencies.clear
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end
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def with_loading(*from)
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old_mechanism, ActiveSupport::Dependencies.mechanism = ActiveSupport::Dependencies.mechanism, :load
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this_dir = File.dirname(__FILE__)
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parent_dir = File.dirname(this_dir)
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path_copy = $LOAD_PATH.dup
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$LOAD_PATH.unshift(parent_dir) unless $LOAD_PATH.include?(parent_dir)
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prior_autoload_paths = ActiveSupport::Dependencies.autoload_paths
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ActiveSupport::Dependencies.autoload_paths = from.collect { |f| "#{this_dir}/#{f}" }
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yield
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ensure
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$LOAD_PATH.replace(path_copy)
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ActiveSupport::Dependencies.autoload_paths = prior_autoload_paths
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ActiveSupport::Dependencies.mechanism = old_mechanism
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ActiveSupport::Dependencies.explicitly_unloadable_constants = []
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end
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def with_autoloading_fixtures(&block)
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with_loading 'autoloading_fixtures', &block
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end
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def test_depend_on_path
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skip "LoadError#path does not exist" if RUBY_VERSION < '2.0.0'
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expected = assert_raises(LoadError) do
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Kernel.require 'omgwtfbbq'
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end
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e = assert_raises(LoadError) do
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ActiveSupport::Dependencies.depend_on 'omgwtfbbq'
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end
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assert_equal expected.path, e.path
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end
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def test_tracking_loaded_files
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require_dependency 'dependencies/service_one'
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require_dependency 'dependencies/service_two'
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assert_equal 2, ActiveSupport::Dependencies.loaded.size
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ensure
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Object.send(:remove_const, :ServiceOne) if Object.const_defined?(:ServiceOne)
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Object.send(:remove_const, :ServiceTwo) if Object.const_defined?(:ServiceTwo)
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end
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def test_tracking_identical_loaded_files
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require_dependency 'dependencies/service_one'
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require_dependency 'dependencies/service_one'
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assert_equal 1, ActiveSupport::Dependencies.loaded.size
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ensure
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Object.send(:remove_const, :ServiceOne) if Object.const_defined?(:ServiceOne)
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end
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def test_missing_dependency_raises_missing_source_file
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assert_raise(MissingSourceFile) { require_dependency("missing_service") }
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end
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def test_dependency_which_raises_exception_isnt_added_to_loaded_set
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with_loading do
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filename = 'dependencies/raises_exception'
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$raises_exception_load_count = 0
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5.times do |count|
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begin
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require_dependency filename
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flunk 'should have loaded dependencies/raises_exception which raises an exception'
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rescue Exception => e
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assert_equal 'Loading me failed, so do not add to loaded or history.', e.message
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end
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assert_equal count + 1, $raises_exception_load_count
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assert !ActiveSupport::Dependencies.loaded.include?(filename)
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assert !ActiveSupport::Dependencies.history.include?(filename)
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end
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end
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end
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def test_warnings_should_be_enabled_on_first_load
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with_loading 'dependencies' do
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old_warnings, ActiveSupport::Dependencies.warnings_on_first_load = ActiveSupport::Dependencies.warnings_on_first_load, true
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filename = "check_warnings"
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expanded = File.expand_path("#{File.dirname(__FILE__)}/dependencies/#{filename}")
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$check_warnings_load_count = 0
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assert !ActiveSupport::Dependencies.loaded.include?(expanded)
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assert !ActiveSupport::Dependencies.history.include?(expanded)
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silence_warnings { require_dependency filename }
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assert_equal 1, $check_warnings_load_count
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assert_equal true, $checked_verbose, 'On first load warnings should be enabled.'
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assert ActiveSupport::Dependencies.loaded.include?(expanded)
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ActiveSupport::Dependencies.clear
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assert !ActiveSupport::Dependencies.loaded.include?(expanded)
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assert ActiveSupport::Dependencies.history.include?(expanded)
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silence_warnings { require_dependency filename }
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assert_equal 2, $check_warnings_load_count
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assert_equal nil, $checked_verbose, 'After first load warnings should be left alone.'
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assert ActiveSupport::Dependencies.loaded.include?(expanded)
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ActiveSupport::Dependencies.clear
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assert !ActiveSupport::Dependencies.loaded.include?(expanded)
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assert ActiveSupport::Dependencies.history.include?(expanded)
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enable_warnings { require_dependency filename }
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assert_equal 3, $check_warnings_load_count
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assert_equal true, $checked_verbose, 'After first load warnings should be left alone.'
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assert ActiveSupport::Dependencies.loaded.include?(expanded)
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ActiveSupport::Dependencies.warnings_on_first_load = old_warnings
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end
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end
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def test_mutual_dependencies_dont_infinite_loop
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with_loading 'dependencies' do
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$mutual_dependencies_count = 0
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assert_nothing_raised { require_dependency 'mutual_one' }
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assert_equal 2, $mutual_dependencies_count
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ActiveSupport::Dependencies.clear
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$mutual_dependencies_count = 0
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assert_nothing_raised { require_dependency 'mutual_two' }
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assert_equal 2, $mutual_dependencies_count
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end
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end
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def test_circular_autoloading_detection
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with_autoloading_fixtures do
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e = assert_raise(RuntimeError) { Circular1 }
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assert_equal "Circular dependency detected while autoloading constant Circular1", e.message
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end
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end
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def test_module_loading
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with_autoloading_fixtures do
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assert_kind_of Module, A
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assert_kind_of Class, A::B
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assert_kind_of Class, A::C::D
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assert_kind_of Class, A::C::E::F
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end
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end
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def test_non_existing_const_raises_name_error
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with_autoloading_fixtures do
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assert_raise(NameError) { DoesNotExist }
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assert_raise(NameError) { NoModule::DoesNotExist }
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assert_raise(NameError) { A::DoesNotExist }
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assert_raise(NameError) { A::B::DoesNotExist }
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end
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end
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def test_directories_manifest_as_modules_unless_const_defined
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with_autoloading_fixtures do
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assert_kind_of Module, ModuleFolder
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Object.__send__ :remove_const, :ModuleFolder
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end
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end
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def test_module_with_nested_class
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with_autoloading_fixtures do
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assert_kind_of Class, ModuleFolder::NestedClass
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Object.__send__ :remove_const, :ModuleFolder
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end
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end
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def test_module_with_nested_inline_class
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with_autoloading_fixtures do
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assert_kind_of Class, ModuleFolder::InlineClass
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Object.__send__ :remove_const, :ModuleFolder
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end
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end
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def test_directories_may_manifest_as_nested_classes
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with_autoloading_fixtures do
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assert_kind_of Class, ClassFolder
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Object.__send__ :remove_const, :ClassFolder
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end
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end
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def test_class_with_nested_class
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with_autoloading_fixtures do
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assert_kind_of Class, ClassFolder::NestedClass
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Object.__send__ :remove_const, :ClassFolder
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end
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end
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def test_class_with_nested_inline_class
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with_autoloading_fixtures do
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assert_kind_of Class, ClassFolder::InlineClass
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Object.__send__ :remove_const, :ClassFolder
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end
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end
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def test_class_with_nested_inline_subclass_of_parent
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with_autoloading_fixtures do
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assert_kind_of Class, ClassFolder::ClassFolderSubclass
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assert_kind_of Class, ClassFolder
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assert_equal 'indeed', ClassFolder::ClassFolderSubclass::ConstantInClassFolder
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Object.__send__ :remove_const, :ClassFolder
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end
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end
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def test_nested_class_can_access_sibling
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with_autoloading_fixtures do
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sibling = ModuleFolder::NestedClass.class_eval "NestedSibling"
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assert defined?(ModuleFolder::NestedSibling)
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assert_equal ModuleFolder::NestedSibling, sibling
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Object.__send__ :remove_const, :ModuleFolder
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end
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end
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def test_doesnt_break_normal_require
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path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
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original_path = $:.dup
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original_features = $".dup
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$:.push(path)
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with_autoloading_fixtures do
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# The _ = assignments are to prevent warnings
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_ = RequiresConstant
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assert defined?(RequiresConstant)
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assert defined?(LoadedConstant)
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ActiveSupport::Dependencies.clear
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_ = RequiresConstant
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assert defined?(RequiresConstant)
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assert defined?(LoadedConstant)
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end
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ensure
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remove_constants(:RequiresConstant, :LoadedConstant, :LoadsConstant)
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$".replace(original_features)
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$:.replace(original_path)
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end
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def test_doesnt_break_normal_require_nested
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path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
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original_path = $:.dup
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original_features = $".dup
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$:.push(path)
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with_autoloading_fixtures do
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# The _ = assignments are to prevent warnings
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_ = LoadsConstant
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assert defined?(LoadsConstant)
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assert defined?(LoadedConstant)
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ActiveSupport::Dependencies.clear
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_ = LoadsConstant
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assert defined?(LoadsConstant)
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assert defined?(LoadedConstant)
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end
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ensure
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remove_constants(:RequiresConstant, :LoadedConstant, :LoadsConstant)
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$".replace(original_features)
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$:.replace(original_path)
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end
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def test_require_returns_true_when_file_not_yet_required
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path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
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original_path = $:.dup
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original_features = $".dup
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$:.push(path)
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with_loading do
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assert_equal true, require('loaded_constant')
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end
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ensure
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remove_constants(:LoadedConstant)
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$".replace(original_features)
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$:.replace(original_path)
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end
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def test_require_returns_true_when_file_not_yet_required_even_when_no_new_constants_added
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path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
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original_path = $:.dup
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original_features = $".dup
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$:.push(path)
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with_loading do
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Object.module_eval "module LoadedConstant; end"
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assert_equal true, require('loaded_constant')
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end
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ensure
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remove_constants(:LoadedConstant)
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$".replace(original_features)
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$:.replace(original_path)
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end
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def test_require_returns_false_when_file_already_required
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path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
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original_path = $:.dup
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original_features = $".dup
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$:.push(path)
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with_loading do
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require 'loaded_constant'
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assert_equal false, require('loaded_constant')
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end
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ensure
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remove_constants(:LoadedConstant)
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$".replace(original_features)
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$:.replace(original_path)
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end
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def test_require_raises_load_error_when_file_not_found
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with_loading do
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assert_raise(LoadError) { require 'this_file_dont_exist_dude' }
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end
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ensure
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remove_constants(:LoadedConstant)
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end
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def test_load_returns_true_when_file_found
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path = File.expand_path("../autoloading_fixtures/load_path", __FILE__)
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original_path = $:.dup
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original_features = $".dup
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$:.push(path)
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with_loading do
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assert_equal true, load('loaded_constant.rb')
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assert_equal true, load('loaded_constant.rb')
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end
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ensure
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remove_constants(:LoadedConstant)
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$".replace(original_features)
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$:.replace(original_path)
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end
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def test_load_raises_load_error_when_file_not_found
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with_loading do
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assert_raise(LoadError) { load 'this_file_dont_exist_dude.rb' }
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end
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ensure
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remove_constants(:LoadedConstant)
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end
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def failing_test_access_thru_and_upwards_fails
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with_autoloading_fixtures do
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assert ! defined?(ModuleFolder)
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assert_raise(NameError) { ModuleFolder::Object }
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assert_raise(NameError) { ModuleFolder::NestedClass::Object }
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Object.__send__ :remove_const, :ModuleFolder
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end
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end
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def test_non_existing_const_raises_name_error_with_fully_qualified_name
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with_autoloading_fixtures do
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begin
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A::DoesNotExist.nil?
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flunk "No raise!!"
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rescue NameError => e
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assert_equal "uninitialized constant A::DoesNotExist", e.message
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end
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begin
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A::B::DoesNotExist.nil?
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flunk "No raise!!"
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rescue NameError => e
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assert_equal "uninitialized constant A::B::DoesNotExist", e.message
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end
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end
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end
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def test_smart_name_error_strings
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begin
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Object.module_eval "ImaginaryObject"
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flunk "No raise!!"
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rescue NameError => e
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assert e.message.include?("uninitialized constant ImaginaryObject")
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end
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end
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def test_loadable_constants_for_path_should_handle_empty_autoloads
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assert_equal [], ActiveSupport::Dependencies.loadable_constants_for_path('hello')
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end
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def test_loadable_constants_for_path_should_handle_relative_paths
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fake_root = 'dependencies'
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relative_root = File.dirname(__FILE__) + '/dependencies'
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['', '/'].each do |suffix|
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with_loading fake_root + suffix do
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assert_equal ["A::B"], ActiveSupport::Dependencies.loadable_constants_for_path(relative_root + '/a/b')
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end
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end
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end
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def test_loadable_constants_for_path_should_provide_all_results
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fake_root = '/usr/apps/backpack'
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with_loading fake_root, fake_root + '/lib' do
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root = ActiveSupport::Dependencies.autoload_paths.first
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assert_equal ["Lib::A::B", "A::B"], ActiveSupport::Dependencies.loadable_constants_for_path(root + '/lib/a/b')
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end
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end
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def test_loadable_constants_for_path_should_uniq_results
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fake_root = '/usr/apps/backpack/lib'
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with_loading fake_root, fake_root + '/' do
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root = ActiveSupport::Dependencies.autoload_paths.first
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assert_equal ["A::B"], ActiveSupport::Dependencies.loadable_constants_for_path(root + '/a/b')
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end
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end
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def test_loadable_constants_with_load_path_without_trailing_slash
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path = File.dirname(__FILE__) + '/autoloading_fixtures/class_folder/inline_class.rb'
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with_loading 'autoloading_fixtures/class/' do
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assert_equal [], ActiveSupport::Dependencies.loadable_constants_for_path(path)
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end
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end
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def test_qualified_const_defined
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assert ActiveSupport::Dependencies.qualified_const_defined?("Object")
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assert ActiveSupport::Dependencies.qualified_const_defined?("::Object")
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assert ActiveSupport::Dependencies.qualified_const_defined?("::Object::Kernel")
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assert ActiveSupport::Dependencies.qualified_const_defined?("::ActiveSupport::TestCase")
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end
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def test_qualified_const_defined_should_not_call_const_missing
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ModuleWithMissing.missing_count = 0
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assert ! ActiveSupport::Dependencies.qualified_const_defined?("ModuleWithMissing::A")
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assert_equal 0, ModuleWithMissing.missing_count
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assert ! ActiveSupport::Dependencies.qualified_const_defined?("ModuleWithMissing::A::B")
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assert_equal 0, ModuleWithMissing.missing_count
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end
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def test_qualified_const_defined_explodes_with_invalid_const_name
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assert_raises(NameError) { ActiveSupport::Dependencies.qualified_const_defined?("invalid") }
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end
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def test_autoloaded?
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with_autoloading_fixtures do
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assert ! ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
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assert ! ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")
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assert ActiveSupport::Dependencies.autoloaded?(ModuleFolder)
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assert ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
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assert ! ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")
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assert ActiveSupport::Dependencies.autoloaded?(ModuleFolder::NestedClass)
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assert ActiveSupport::Dependencies.autoloaded?("ModuleFolder")
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assert ActiveSupport::Dependencies.autoloaded?("ModuleFolder::NestedClass")
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assert ActiveSupport::Dependencies.autoloaded?("::ModuleFolder")
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assert ActiveSupport::Dependencies.autoloaded?(:ModuleFolder)
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# Anonymous modules aren't autoloaded.
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assert !ActiveSupport::Dependencies.autoloaded?(Module.new)
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nil_name = Module.new
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def nil_name.name() nil end
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assert !ActiveSupport::Dependencies.autoloaded?(nil_name)
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Object.class_eval { remove_const :ModuleFolder }
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end
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end
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def test_qualified_name_for
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assert_equal "A", ActiveSupport::Dependencies.qualified_name_for(Object, :A)
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assert_equal "A", ActiveSupport::Dependencies.qualified_name_for(:Object, :A)
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assert_equal "A", ActiveSupport::Dependencies.qualified_name_for("Object", :A)
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assert_equal "A", ActiveSupport::Dependencies.qualified_name_for("::Object", :A)
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assert_equal "ActiveSupport::Dependencies::A", ActiveSupport::Dependencies.qualified_name_for(:'ActiveSupport::Dependencies', :A)
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assert_equal "ActiveSupport::Dependencies::A", ActiveSupport::Dependencies.qualified_name_for(ActiveSupport::Dependencies, :A)
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end
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def test_file_search
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with_loading 'dependencies' do
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root = ActiveSupport::Dependencies.autoload_paths.first
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assert_equal nil, ActiveSupport::Dependencies.search_for_file('service_three')
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assert_equal nil, ActiveSupport::Dependencies.search_for_file('service_three.rb')
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assert_equal root + '/service_one.rb', ActiveSupport::Dependencies.search_for_file('service_one')
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assert_equal root + '/service_one.rb', ActiveSupport::Dependencies.search_for_file('service_one.rb')
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end
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end
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def test_file_search_uses_first_in_load_path
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with_loading 'dependencies', 'autoloading_fixtures' do
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deps, autoload = ActiveSupport::Dependencies.autoload_paths
|
|
assert_match %r/dependencies/, deps
|
|
assert_match %r/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 %r/dependencies/, deps
|
|
assert_match %r/autoloading_fixtures/, autoload
|
|
|
|
assert_equal autoload + '/conflict.rb', ActiveSupport::Dependencies.search_for_file('conflict')
|
|
end
|
|
|
|
end
|
|
|
|
def test_custom_const_missing_should_work
|
|
Object.module_eval <<-end_eval, __FILE__, __LINE__ + 1
|
|
module ModuleWithCustomConstMissing
|
|
def self.const_missing(name)
|
|
const_set name, name.to_s.hash
|
|
end
|
|
|
|
module A
|
|
end
|
|
end
|
|
end_eval
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
def test_constantize_shortcut_for_cached_constant_lookups
|
|
with_loading 'dependencies' do
|
|
assert_equal ServiceOne, ActiveSupport::Dependencies.constantize("ServiceOne")
|
|
end
|
|
end
|
|
|
|
def test_nested_load_error_isnt_rescued
|
|
with_loading 'dependencies' do
|
|
assert_raise(MissingSourceFile) do
|
|
RequiresNonexistent1
|
|
end
|
|
end
|
|
end
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
def test_unloadable_should_fail_with_anonymous_modules
|
|
with_autoloading_fixtures do
|
|
m = Module.new
|
|
assert_raise(ArgumentError) { m.unloadable }
|
|
end
|
|
end
|
|
|
|
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
|
|
Object.class_eval { remove_const :M }
|
|
end
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
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 !defined?(ShouldNotBeAutoloaded)
|
|
end
|
|
|
|
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
|
|
|
|
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
|
|
|
|
def test_hook_called_multiple_times
|
|
assert_nothing_raised { ActiveSupport::Dependencies.hook! }
|
|
end
|
|
|
|
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
|
|
|
|
private
|
|
def remove_constants(*constants)
|
|
constants.each do |constant|
|
|
Object.send(:remove_const, constant) if Object.const_defined?(constant)
|
|
end
|
|
end
|
|
end
|