require 'test/unit' require 'pp' require_relative 'envutil' $m0 = Module.nesting class TestModule < Test::Unit::TestCase def assert_method_defined?(klass, mid, message="") message = build_message(message, "#{klass}\##{mid} expected to be defined.") _wrap_assertion do klass.method_defined?(mid) or raise Test::Unit::AssertionFailedError, message, caller(3) end end def assert_method_not_defined?(klass, mid, message="") message = build_message(message, "#{klass}\##{mid} expected to not be defined.") _wrap_assertion do klass.method_defined?(mid) and raise Test::Unit::AssertionFailedError, message, caller(3) end end def setup @verbose = $VERBOSE $VERBOSE = nil end def teardown $VERBOSE = @verbose end def test_LT_0 assert_equal true, String < Object assert_equal false, Object < String assert_nil String < Array assert_equal true, Array < Enumerable assert_equal false, Enumerable < Array assert_nil Proc < Comparable assert_nil Comparable < Proc end def test_GT_0 assert_equal false, String > Object assert_equal true, Object > String assert_nil String > Array assert_equal false, Array > Enumerable assert_equal true, Enumerable > Array assert_nil Comparable > Proc assert_nil Proc > Comparable end def test_CMP_0 assert_equal -1, (String <=> Object) assert_equal 1, (Object <=> String) assert_nil(Array <=> String) end ExpectedException = NoMethodError # Support stuff def remove_pp_mixins(list) list.reject {|c| c == PP::ObjectMixin } end def remove_json_mixins(list) list.reject {|c| c.to_s.start_with?("JSON") } end module Mixin MIXIN = 1 def mixin end end module User USER = 2 include Mixin def user end end module Other def other end end class AClass def AClass.cm1 "cm1" end def AClass.cm2 cm1 + "cm2" + cm3 end def AClass.cm3 "cm3" end private_class_method :cm1, "cm3" def aClass end def aClass1 end def aClass2 end private :aClass1 protected :aClass2 end class BClass < AClass def bClass1 end private def bClass2 end protected def bClass3 end end MyClass = AClass.clone class MyClass public_class_method :cm1 end # ----------------------------------------------------------- def test_CMP # '<=>' assert_equal( 0, Mixin <=> Mixin) assert_equal(-1, User <=> Mixin) assert_equal( 1, Mixin <=> User) assert_equal( 0, Object <=> Object) assert_equal(-1, String <=> Object) assert_equal( 1, Object <=> String) end def test_GE # '>=' assert(Mixin >= User) assert(Mixin >= Mixin) assert(!(User >= Mixin)) assert(Object >= String) assert(String >= String) assert(!(String >= Object)) end def test_GT # '>' assert(Mixin > User) assert(!(Mixin > Mixin)) assert(!(User > Mixin)) assert(Object > String) assert(!(String > String)) assert(!(String > Object)) end def test_LE # '<=' assert(User <= Mixin) assert(Mixin <= Mixin) assert(!(Mixin <= User)) assert(String <= Object) assert(String <= String) assert(!(Object <= String)) end def test_LT # '<' assert(User < Mixin) assert(!(Mixin < Mixin)) assert(!(Mixin < User)) assert(String < Object) assert(!(String < String)) assert(!(Object < String)) end def test_VERY_EQUAL # '===' assert(Object === self) assert(Test::Unit::TestCase === self) assert(TestModule === self) assert(!(String === self)) end def test_ancestors assert_equal([User, Mixin], User.ancestors) assert_equal([Mixin], Mixin.ancestors) assert_equal([Object, Kernel, BasicObject], remove_json_mixins(remove_pp_mixins(Object.ancestors))) assert_equal([String, Comparable, Object, Kernel, BasicObject], remove_json_mixins(remove_pp_mixins(String.ancestors))) end def test_class_eval Other.class_eval("CLASS_EVAL = 1") assert_equal(1, Other::CLASS_EVAL) assert(Other.constants.include?(:CLASS_EVAL)) end def test_class_variable_set # TODO end def test_class_variable_get # TODO end def test_const_defined? assert(Math.const_defined?(:PI)) assert(Math.const_defined?("PI")) assert(!Math.const_defined?(:IP)) assert(!Math.const_defined?("IP")) end def test_const_get assert_equal(Math::PI, Math.const_get("PI")) assert_equal(Math::PI, Math.const_get(:PI)) end def test_const_set assert(!Other.const_defined?(:KOALA)) Other.const_set(:KOALA, 99) assert(Other.const_defined?(:KOALA)) assert_equal(99, Other::KOALA) Other.const_set("WOMBAT", "Hi") assert_equal("Hi", Other::WOMBAT) end def test_constants assert_equal([:MIXIN], Mixin.constants) assert_equal([:MIXIN, :USER], User.constants.sort) end def test_included_modules assert_equal([], Mixin.included_modules) assert_equal([Mixin], User.included_modules) assert_equal([Kernel], remove_json_mixins(remove_pp_mixins(Object.included_modules))) assert_equal([Comparable, Kernel], remove_json_mixins(remove_pp_mixins(String.included_modules))) end def test_instance_methods assert_equal([:user], User.instance_methods(false)) assert_equal([:user, :mixin].sort, User.instance_methods(true).sort) assert_equal([:mixin], Mixin.instance_methods) assert_equal([:mixin], Mixin.instance_methods(true)) # Ruby 1.8 feature change: # #instance_methods includes protected methods. #assert_equal([:aClass], AClass.instance_methods(false)) assert_equal([:aClass, :aClass2], AClass.instance_methods(false).sort) assert_equal([:aClass, :aClass2], (AClass.instance_methods(true) - Object.instance_methods(true)).sort) end def test_method_defined? assert_method_not_defined?(User, :wombat) assert_method_defined?(User, :user) assert_method_defined?(User, :mixin) assert_method_not_defined?(User, :wombat) assert_method_defined?(User, :user) assert_method_defined?(User, :mixin) end def module_exec_aux Proc.new do def dynamically_added_method_3; end end end def module_exec_aux_2(&block) User.module_exec(&block) end def test_module_exec User.module_exec do def dynamically_added_method_1; end end assert_method_defined?(User, :dynamically_added_method_1) block = Proc.new do def dynamically_added_method_2; end end User.module_exec(&block) assert_method_defined?(User, :dynamically_added_method_2) User.module_exec(&module_exec_aux) assert_method_defined?(User, :dynamically_added_method_3) module_exec_aux_2 do def dynamically_added_method_4; end end assert_method_defined?(User, :dynamically_added_method_4) end def test_module_eval User.module_eval("MODULE_EVAL = 1") assert_equal(1, User::MODULE_EVAL) assert(User.constants.include?(:MODULE_EVAL)) User.instance_eval("remove_const(:MODULE_EVAL)") assert(!User.constants.include?(:MODULE_EVAL)) end def test_name assert_equal("Fixnum", Fixnum.name) assert_equal("TestModule::Mixin", Mixin.name) assert_equal("TestModule::User", User.name) end def test_private_class_method assert_raise(ExpectedException) { AClass.cm1 } assert_raise(ExpectedException) { AClass.cm3 } assert_equal("cm1cm2cm3", AClass.cm2) end def test_private_instance_methods assert_equal([:aClass1], AClass.private_instance_methods(false)) assert_equal([:bClass2], BClass.private_instance_methods(false)) assert_equal([:aClass1, :bClass2], (BClass.private_instance_methods(true) - Object.private_instance_methods(true)).sort) end def test_protected_instance_methods assert_equal([:aClass2], AClass.protected_instance_methods) assert_equal([:bClass3], BClass.protected_instance_methods(false)) assert_equal([:bClass3, :aClass2].sort, (BClass.protected_instance_methods(true) - Object.protected_instance_methods(true)).sort) end def test_public_class_method assert_equal("cm1", MyClass.cm1) assert_equal("cm1cm2cm3", MyClass.cm2) assert_raise(ExpectedException) { eval "MyClass.cm3" } end def test_public_instance_methods assert_equal([:aClass], AClass.public_instance_methods(false)) assert_equal([:bClass1], BClass.public_instance_methods(false)) end def test_s_constants c1 = Module.constants Object.module_eval "WALTER = 99" c2 = Module.constants assert_equal([:WALTER], c2 - c1) end module M1 $m1 = Module.nesting module M2 $m2 = Module.nesting end end def test_s_nesting assert_equal([], $m0) assert_equal([TestModule::M1, TestModule], $m1) assert_equal([TestModule::M1::M2, TestModule::M1, TestModule], $m2) end def test_s_new m = Module.new assert_instance_of(Module, m) end def test_freeze m = Module.new m.freeze assert_raise(RuntimeError) do m.module_eval do def foo; end end end end def test_attr_obsoleted_flag c = Class.new c.class_eval do def initialize @foo = :foo @bar = :bar end attr :foo, true attr :bar, false end o = c.new assert_equal(true, o.respond_to?(:foo)) assert_equal(true, o.respond_to?(:foo=)) assert_equal(true, o.respond_to?(:bar)) assert_equal(false, o.respond_to?(:bar=)) end def test_const_get2 c1 = Class.new c2 = Class.new(c1) eval("c1::Foo = :foo") assert_equal(:foo, c1::Foo) assert_equal(:foo, c2::Foo) assert_equal(:foo, c2.const_get(:Foo)) assert_raise(NameError) { c2.const_get(:Foo, false) } eval("c1::Foo = :foo") assert_raise(NameError) { c1::Bar } assert_raise(NameError) { c2::Bar } assert_raise(NameError) { c2.const_get(:Bar) } assert_raise(NameError) { c2.const_get(:Bar, false) } c1.instance_eval do def const_missing(x) x end end assert_equal(:Bar, c1::Bar) assert_equal(:Bar, c2::Bar) assert_equal(:Bar, c2.const_get(:Bar)) assert_equal(:Bar, c2.const_get(:Bar, false)) assert_raise(NameError) { c1.const_get(:foo) } end def test_const_set2 c1 = Class.new assert_raise(NameError) { c1.const_set(:foo, :foo) } end def test_const_get3 c1 = Class.new assert_raise(NameError) { c1.const_defined?(:foo) } end def test_class_variable_get2 c = Class.new c.class_eval { @@foo = :foo } assert_equal(:foo, c.class_variable_get(:@@foo)) assert_raise(NameError) { c.class_variable_get(:@@bar) } # c.f. instance_variable_get assert_raise(NameError) { c.class_variable_get(:foo) } end def test_class_variable_set2 c = Class.new c.class_variable_set(:@@foo, :foo) assert_equal(:foo, c.class_eval { @@foo }) assert_raise(NameError) { c.class_variable_set(:foo, 1) } end def test_class_variable_defined c = Class.new c.class_eval { @@foo = :foo } assert_equal(true, c.class_variable_defined?(:@@foo)) assert_equal(false, c.class_variable_defined?(:@@bar)) assert_raise(NameError) { c.class_variable_defined?(:foo) } end def test_export_method m = Module.new assert_raise(NameError) do m.instance_eval { public(:foo) } end end def test_attr assert_in_out_err([], <<-INPUT, %w(:ok nil), /warning: private attribute\?$/) $VERBOSE = true c = Class.new c.instance_eval do private attr_reader :foo end o = c.new o.foo rescue p(:ok) p(o.instance_eval { foo }) INPUT c = Class.new assert_raise(NameError) do c.instance_eval { attr_reader :"$" } end end def test_undef assert_raise(SecurityError) do Thread.new do $SAFE = 4 Class.instance_eval { undef_method(:foo) } end.join end c = Class.new assert_raise(NameError) do c.instance_eval { undef_method(:foo) } end m = Module.new assert_raise(NameError) do m.instance_eval { undef_method(:foo) } end o = Object.new assert_raise(NameError) do class << o; self; end.instance_eval { undef_method(:foo) } end %w(object_id __send__ initialize).each do |m| assert_in_out_err([], <<-INPUT, [], /warning: undefining `#{m}' may cause serious problem$/) $VERBOSE = false Class.new.instance_eval { undef_method(:#{m}) } INPUT end end def test_alias m = Module.new assert_raise(NameError) do m.class_eval { alias foo bar } end assert_in_out_err([], <<-INPUT, %w(2), /warning: discarding old foo$/) $VERBOSE = true c = Class.new c.class_eval do def foo; 1; end def bar; 2; end end c.class_eval { alias foo bar } p c.new.foo INPUT end def test_mod_constants Module.const_set(:Foo, :foo) assert_equal([:Foo], Module.constants(true)) assert_equal([:Foo], Module.constants(false)) Module.instance_eval { remove_const(:Foo) } end def test_frozen_class m = Module.new m.freeze assert_raise(RuntimeError) do m.instance_eval { undef_method(:foo) } end c = Class.new c.freeze assert_raise(RuntimeError) do c.instance_eval { undef_method(:foo) } end o = Object.new c = class << o; self; end c.freeze assert_raise(RuntimeError) do c.instance_eval { undef_method(:foo) } end end def test_method_defined c = Class.new c.class_eval do def foo; end def bar; end def baz; end public :foo protected :bar private :baz end assert_equal(true, c.public_method_defined?(:foo)) assert_equal(false, c.public_method_defined?(:bar)) assert_equal(false, c.public_method_defined?(:baz)) assert_equal(false, c.protected_method_defined?(:foo)) assert_equal(true, c.protected_method_defined?(:bar)) assert_equal(false, c.protected_method_defined?(:baz)) assert_equal(false, c.private_method_defined?(:foo)) assert_equal(false, c.private_method_defined?(:bar)) assert_equal(true, c.private_method_defined?(:baz)) end def test_change_visibility_under_safe4 c = Class.new c.class_eval do def foo; end end assert_raise(SecurityError) do Thread.new do $SAFE = 4 c.class_eval { private :foo } end.join end end def test_top_public_private assert_in_out_err([], <<-INPUT, %w([:foo] [:bar]), []) private def foo; :foo; end public def bar; :bar; end p self.private_methods.grep(/^foo$|^bar$/) p self.methods.grep(/^foo$|^bar$/) INPUT end def test_append_features t = nil m = Module.new m.module_eval do def foo; :foo; end end class << m; self; end.class_eval do define_method(:append_features) do |mod| t = mod super(mod) end end m2 = Module.new m2.module_eval { include(m) } assert_equal(m2, t) o = Object.new o.extend(m2) assert_equal(true, o.respond_to?(:foo)) end def test_append_features_raise m = Module.new m.module_eval do def foo; :foo; end end class << m; self; end.class_eval do define_method(:append_features) {|mod| raise } end m2 = Module.new assert_raise(RuntimeError) do m2.module_eval { include(m) } end o = Object.new o.extend(m2) assert_equal(false, o.respond_to?(:foo)) end def test_append_features_type_error assert_raise(TypeError) do Module.new.instance_eval { append_features(1) } end end def test_included m = Module.new m.module_eval do def foo; :foo; end end class << m; self; end.class_eval do define_method(:included) {|mod| raise } end m2 = Module.new assert_raise(RuntimeError) do m2.module_eval { include(m) } end o = Object.new o.extend(m2) assert_equal(true, o.respond_to?(:foo)) end def test_cyclic_include m1 = Module.new m2 = Module.new m1.instance_eval { include(m2) } assert_raise(ArgumentError) do m2.instance_eval { include(m1) } end end def test_include_p m = Module.new c1 = Class.new c1.instance_eval { include(m) } c2 = Class.new(c1) assert_equal(true, c1.include?(m)) assert_equal(true, c2.include?(m)) assert_equal(false, m.include?(m)) end end