diff options
Diffstat (limited to 'activesupport/test/core_ext/module_test.rb')
| -rw-r--r-- | activesupport/test/core_ext/module_test.rb | 325 |
1 files changed, 75 insertions, 250 deletions
diff --git a/activesupport/test/core_ext/module_test.rb b/activesupport/test/core_ext/module_test.rb index 36073b28b7..e918823074 100644 --- a/activesupport/test/core_ext/module_test.rb +++ b/activesupport/test/core_ext/module_test.rb @@ -1,30 +1,13 @@ +# frozen_string_literal: true + require "abstract_unit" require "active_support/core_ext/module" -module One - Constant1 = "Hello World" - Constant2 = "What's up?" -end - -class Ab - include One - Constant1 = "Hello World" # Will have different object id than One::Constant1 - Constant3 = "Goodbye World" -end - -module Yz - module Zy - class Cd - include One - end - end -end - Somewhere = Struct.new(:street, :city) do attr_accessor :name end -class Someone < Struct.new(:name, :place) +Someone = Struct.new(:name, :place) do delegate :street, :city, :to_f, to: :place delegate :name=, to: :place, prefix: true delegate :upcase, to: "place.city" @@ -35,10 +18,10 @@ class Someone < Struct.new(:name, :place) "some_table" end - FAILED_DELEGATE_LINE = __LINE__ + 1 + self::FAILED_DELEGATE_LINE = __LINE__ + 1 delegate :foo, to: :place - FAILED_DELEGATE_LINE_2 = __LINE__ + 1 + self::FAILED_DELEGATE_LINE_2 = __LINE__ + 1 delegate :bar, to: :place, allow_nil: true private @@ -48,12 +31,12 @@ class Someone < Struct.new(:name, :place) end end -Invoice = Struct.new(:client) do +Invoice = Struct.new(:client) do delegate :street, :city, :name, to: :client, prefix: true delegate :street, :city, :name, to: :client, prefix: :customer end -Project = Struct.new(:description, :person) do +Project = Struct.new(:description, :person) do delegate :name, to: :person, allow_nil: true delegate :to_f, to: :description, allow_nil: true end @@ -89,7 +72,23 @@ Product = Struct.new(:name) do end end +module ExtraMissing + def method_missing(sym, *args) + if sym == :extra_missing + 42 + else + super + end + end + + def respond_to_missing?(sym, priv = false) + sym == :extra_missing || super + end +end + DecoratedTester = Struct.new(:client) do + include ExtraMissing + delegate_missing_to :client end @@ -210,21 +209,21 @@ class ModuleTest < ActiveSupport::TestCase def test_delegation_prefix invoice = Invoice.new(@david) - assert_equal invoice.client_name, "David" - assert_equal invoice.client_street, "Paulina" - assert_equal invoice.client_city, "Chicago" + assert_equal "David", invoice.client_name + assert_equal "Paulina", invoice.client_street + assert_equal "Chicago", invoice.client_city end def test_delegation_custom_prefix invoice = Invoice.new(@david) - assert_equal invoice.customer_name, "David" - assert_equal invoice.customer_street, "Paulina" - assert_equal invoice.customer_city, "Chicago" + assert_equal "David", invoice.customer_name + assert_equal "Paulina", invoice.customer_street + assert_equal "Chicago", invoice.customer_city end def test_delegation_prefix_with_nil_or_false - assert_equal Developer.new(@david).name, "David" - assert_equal Tester.new(@david).name, "David" + assert_equal "David", Developer.new(@david).name + assert_equal "David", Tester.new(@david).name end def test_delegation_prefix_with_instance_variable @@ -240,7 +239,7 @@ class ModuleTest < ActiveSupport::TestCase def test_delegation_with_allow_nil rails = Project.new("Rails", Someone.new("David")) - assert_equal rails.name, "David" + assert_equal "David", rails.name end def test_delegation_with_allow_nil_and_nil_value @@ -351,15 +350,15 @@ class ModuleTest < ActiveSupport::TestCase assert has_block.hello? end - def test_delegate_to_missing_with_method + def test_delegate_missing_to_with_method assert_equal "David", DecoratedTester.new(@david).name end - def test_delegate_to_missing_with_reserved_methods + def test_delegate_missing_to_with_reserved_methods assert_equal "David", DecoratedReserved.new(@david).name end - def test_delegate_to_missing_does_not_delegate_to_private_methods + def test_delegate_missing_to_does_not_delegate_to_private_methods e = assert_raises(NoMethodError) do DecoratedReserved.new(@david).private_name end @@ -367,7 +366,7 @@ class ModuleTest < ActiveSupport::TestCase assert_match(/undefined method `private_name' for/, e.message) end - def test_delegate_to_missing_does_not_delegate_to_fake_methods + def test_delegate_missing_to_does_not_delegate_to_fake_methods e = assert_raises(NoMethodError) do DecoratedReserved.new(@david).my_fake_method end @@ -375,244 +374,70 @@ class ModuleTest < ActiveSupport::TestCase assert_match(/undefined method `my_fake_method' for/, e.message) end - def test_parent - assert_equal Yz::Zy, Yz::Zy::Cd.parent - assert_equal Yz, Yz::Zy.parent - assert_equal Object, Yz.parent - end - - def test_parents - assert_equal [Yz::Zy, Yz, Object], Yz::Zy::Cd.parents - assert_equal [Yz, Object], Yz::Zy.parents - end - - def test_local_constants - ActiveSupport::Deprecation.silence do - assert_equal %w(Constant1 Constant3), Ab.local_constants.sort.map(&:to_s) - end - end - - def test_local_constants_is_deprecated - assert_deprecated { Ab.local_constants.sort.map(&:to_s) } - end -end - -module BarMethodAliaser - def self.included(foo_class) - foo_class.class_eval do - include BarMethods - alias_method_chain :bar, :baz + def test_delegate_missing_to_raises_delegation_error_if_target_nil + e = assert_raises(Module::DelegationError) do + DecoratedTester.new(nil).name end - end -end - -module BarMethods - def bar_with_baz - bar_without_baz << "_with_baz" - end - - def quux_with_baz! - quux_without_baz! << "_with_baz" - end - - def quux_with_baz? - false - end - - def quux_with_baz=(v) - send(:quux_without_baz=, v) << "_with_baz" - end - def duck_with_orange - duck_without_orange << "_with_orange" + assert_equal "name delegated to client, but client is nil", e.message end -end -class MethodAliasingTest < ActiveSupport::TestCase - def setup - Object.const_set :FooClassWithBarMethod, Class.new { def bar() "bar" end } - @instance = FooClassWithBarMethod.new - end + def test_delegate_missing_to_affects_respond_to + assert DecoratedTester.new(@david).respond_to?(:name) + assert_not DecoratedTester.new(@david).respond_to?(:private_name) + assert_not DecoratedTester.new(@david).respond_to?(:my_fake_method) - def teardown - Object.instance_eval { remove_const :FooClassWithBarMethod } + assert DecoratedTester.new(@david).respond_to?(:name, true) + assert_not DecoratedTester.new(@david).respond_to?(:private_name, true) + assert_not DecoratedTester.new(@david).respond_to?(:my_fake_method, true) end - def test_alias_method_chain_deprecated - assert_deprecated(/alias_method_chain/) do - Module.new do - def base - end - - def base_with_deprecated - end + def test_delegate_missing_to_respects_superclass_missing + assert_equal 42, DecoratedTester.new(@david).extra_missing - alias_method_chain :base, :deprecated - end - end + assert_respond_to DecoratedTester.new(@david), :extra_missing end - def test_alias_method_chain - assert_deprecated(/alias_method_chain/) do - assert @instance.respond_to?(:bar) - feature_aliases = [:bar_with_baz, :bar_without_baz] - - feature_aliases.each do |method| - assert !@instance.respond_to?(method) - end - - assert_equal "bar", @instance.bar - - FooClassWithBarMethod.class_eval { include BarMethodAliaser } - - feature_aliases.each do |method| - assert_respond_to @instance, method - end - - assert_equal "bar_with_baz", @instance.bar - assert_equal "bar", @instance.bar_without_baz - end - end - - def test_alias_method_chain_with_punctuation_method - assert_deprecated(/alias_method_chain/) do - FooClassWithBarMethod.class_eval do - def quux!; "quux" end - end - - assert !@instance.respond_to?(:quux_with_baz!) - FooClassWithBarMethod.class_eval do - include BarMethodAliaser - alias_method_chain :quux!, :baz - end - assert_respond_to @instance, :quux_with_baz! - - assert_equal "quux_with_baz", @instance.quux! - assert_equal "quux", @instance.quux_without_baz! - end - end - - def test_alias_method_chain_with_same_names_between_predicates_and_bang_methods - assert_deprecated(/alias_method_chain/) do - FooClassWithBarMethod.class_eval do - def quux!; "quux!" end - def quux?; true end - def quux=(v); "quux=" end - end - - assert !@instance.respond_to?(:quux_with_baz!) - assert !@instance.respond_to?(:quux_with_baz?) - assert !@instance.respond_to?(:quux_with_baz=) - - FooClassWithBarMethod.class_eval { include BarMethodAliaser } - assert_respond_to @instance, :quux_with_baz! - assert_respond_to @instance, :quux_with_baz? - assert_respond_to @instance, :quux_with_baz= - - FooClassWithBarMethod.alias_method_chain :quux!, :baz - assert_equal "quux!_with_baz", @instance.quux! - assert_equal "quux!", @instance.quux_without_baz! - - FooClassWithBarMethod.alias_method_chain :quux?, :baz - assert_equal false, @instance.quux? - assert_equal true, @instance.quux_without_baz? - - FooClassWithBarMethod.alias_method_chain :quux=, :baz - assert_equal "quux=_with_baz", @instance.send(:quux=, 1234) - assert_equal "quux=", @instance.send(:quux_without_baz=, 1234) - end - end - - def test_alias_method_chain_with_feature_punctuation - assert_deprecated(/alias_method_chain/) do - FooClassWithBarMethod.class_eval do - def quux; "quux" end - def quux?; "quux?" end - include BarMethodAliaser - alias_method_chain :quux, :baz! - end - - assert_nothing_raised do - assert_equal "quux_with_baz", @instance.quux_with_baz! - end - - assert_raise(NameError) do - FooClassWithBarMethod.alias_method_chain :quux?, :baz! - end - end + def test_delegate_with_case + event = Event.new(Tester.new) + assert_equal 1, event.foo end - def test_alias_method_chain_yields_target_and_punctuation - assert_deprecated(/alias_method_chain/) do - args = nil - - FooClassWithBarMethod.class_eval do - def quux?; end - include BarMethods - - FooClassWithBarMethod.alias_method_chain :quux?, :baz do |target, punctuation| - args = [target, punctuation] - end + def test_private_delegate + location = Class.new do + def initialize(place) + @place = place end - assert_not_nil args - assert_equal "quux", args[0] - assert_equal "?", args[1] + private(*delegate(:street, :city, to: :@place)) end - end - def test_alias_method_chain_preserves_private_method_status - assert_deprecated(/alias_method_chain/) do - FooClassWithBarMethod.class_eval do - def duck; "duck" end - include BarMethodAliaser - private :duck - alias_method_chain :duck, :orange - end + place = location.new(Somewhere.new("Such street", "Sad city")) - assert_raise NoMethodError do - @instance.duck - end + assert_not place.respond_to?(:street) + assert_not place.respond_to?(:city) - assert_equal "duck_with_orange", @instance.instance_eval { duck } - assert FooClassWithBarMethod.private_method_defined?(:duck) - end + assert place.respond_to?(:street, true) # Asking for private method + assert place.respond_to?(:city, true) end - def test_alias_method_chain_preserves_protected_method_status - assert_deprecated(/alias_method_chain/) do - FooClassWithBarMethod.class_eval do - def duck; "duck" end - include BarMethodAliaser - protected :duck - alias_method_chain :duck, :orange - end - - assert_raise NoMethodError do - @instance.duck + def test_private_delegate_prefixed + location = Class.new do + def initialize(place) + @place = place end - assert_equal "duck_with_orange", @instance.instance_eval { duck } - assert FooClassWithBarMethod.protected_method_defined?(:duck) + private(*delegate(:street, :city, to: :@place, prefix: :the)) end - end - def test_alias_method_chain_preserves_public_method_status - assert_deprecated(/alias_method_chain/) do - FooClassWithBarMethod.class_eval do - def duck; "duck" end - include BarMethodAliaser - public :duck - alias_method_chain :duck, :orange - end + place = location.new(Somewhere.new("Such street", "Sad city")) - assert_equal "duck_with_orange", @instance.duck - assert FooClassWithBarMethod.public_method_defined?(:duck) - end - end + assert_not place.respond_to?(:street) + assert_not place.respond_to?(:city) - def test_delegate_with_case - event = Event.new(Tester.new) - assert_equal 1, event.foo + assert_not place.respond_to?(:the_street) + assert place.respond_to?(:the_street, true) + assert_not place.respond_to?(:the_city) + assert place.respond_to?(:the_city, true) end end |