mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
740 lines
18 KiB
Ruby
740 lines
18 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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class TestClass < Test::Unit::TestCase
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# ------------------
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# Various test classes
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# ------------------
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class ClassOne
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attr :num_args
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@@subs = []
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def initialize(*args)
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@num_args = args.size
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@args = args
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end
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def [](n)
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@args[n]
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end
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def ClassOne.inherited(klass)
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@@subs.push klass
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end
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def subs
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@@subs
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end
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end
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class ClassTwo < ClassOne
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end
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class ClassThree < ClassOne
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end
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class ClassFour < ClassThree
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end
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# ------------------
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# Start of tests
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# ------------------
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def test_s_inherited
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assert_equal([ClassTwo, ClassThree, ClassFour], ClassOne.new.subs)
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end
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def test_s_new
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c = Class.new
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assert_same(Class, c.class)
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assert_same(Object, c.superclass)
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c = Class.new(Integer)
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assert_same(Class, c.class)
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assert_same(Integer, c.superclass)
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end
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def test_00_new_basic
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a = ClassOne.new
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assert_equal(ClassOne, a.class)
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assert_equal(0, a.num_args)
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a = ClassOne.new(1, 2, 3)
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assert_equal(3, a.num_args)
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assert_equal(1, a[0])
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end
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def test_01_new_inherited
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a = ClassTwo.new
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assert_equal(ClassTwo, a.class)
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assert_equal(0, a.num_args)
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a = ClassTwo.new(1, 2, 3)
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assert_equal(3, a.num_args)
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assert_equal(1, a[0])
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end
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def test_superclass
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assert_equal(ClassOne, ClassTwo.superclass)
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assert_equal(Object, ClassTwo.superclass.superclass)
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assert_equal(BasicObject, ClassTwo.superclass.superclass.superclass)
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end
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def test_class_cmp
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assert_raise(TypeError) { Class.new <= 1 }
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assert_raise(TypeError) { Class.new >= 1 }
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assert_nil(Class.new <=> 1)
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end
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def test_class_initialize
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assert_raise(TypeError) do
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Class.new.instance_eval { initialize }
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end
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end
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def test_instantiate_singleton_class
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c = class << Object.new; self; end
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assert_raise(TypeError) { c.new }
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end
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def test_superclass_of_basicobject
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assert_equal(nil, BasicObject.superclass)
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end
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def test_module_function
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c = Class.new
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assert_raise(TypeError) do
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Module.instance_method(:module_function).bind(c).call(:foo)
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end
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end
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def test_extend_object
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c = Class.new
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assert_raise(TypeError) do
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Module.instance_method(:extend_object).bind(c).call(Object.new)
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end
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end
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def test_append_features
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c = Class.new
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assert_raise(TypeError) do
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Module.instance_method(:append_features).bind(c).call(Module.new)
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end
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end
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def test_prepend_features
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c = Class.new
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assert_raise(TypeError) do
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Module.instance_method(:prepend_features).bind(c).call(Module.new)
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end
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end
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def test_module_specific_methods
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assert_empty(Class.private_instance_methods(true) &
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[:module_function, :extend_object, :append_features, :prepend_features])
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end
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def test_visibility_inside_method
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assert_warn(/calling private without arguments inside a method may not have the intended effect/, '[ruby-core:79751]') do
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Class.new do
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def self.foo
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private
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end
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foo
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end
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end
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assert_warn(/calling protected without arguments inside a method may not have the intended effect/, '[ruby-core:79751]') do
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Class.new do
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def self.foo
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protected
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end
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foo
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end
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end
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assert_warn(/calling public without arguments inside a method may not have the intended effect/, '[ruby-core:79751]') do
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Class.new do
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def self.foo
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public
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end
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foo
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end
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end
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assert_warn(/calling private without arguments inside a method may not have the intended effect/, '[ruby-core:79751]') do
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Class.new do
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class << self
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alias priv private
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end
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def self.foo
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priv
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end
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foo
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end
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end
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end
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def test_method_redefinition
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feature2155 = '[ruby-dev:39400]'
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line = __LINE__+4
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stderr = EnvUtil.verbose_warning do
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Class.new do
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def foo; end
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def foo; end
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end
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end
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assert_match(/:#{line}: warning: method redefined; discarding old foo/, stderr)
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assert_match(/:#{line-1}: warning: previous definition of foo/, stderr, feature2155)
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assert_warning '' do
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Class.new do
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def foo; end
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alias bar foo
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def foo; end
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end
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end
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assert_warning '' do
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Class.new do
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def foo; end
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alias bar foo
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alias bar foo
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end
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end
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line = __LINE__+4
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stderr = EnvUtil.verbose_warning do
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Class.new do
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define_method(:foo) do end
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def foo; end
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end
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end
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assert_match(/:#{line}: warning: method redefined; discarding old foo/, stderr)
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assert_match(/:#{line-1}: warning: previous definition of foo/, stderr, feature2155)
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assert_warning '' do
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Class.new do
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define_method(:foo) do end
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alias bar foo
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alias bar foo
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end
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end
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assert_warning '' do
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Class.new do
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def foo; end
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undef foo
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end
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end
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end
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def test_check_inheritable
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assert_raise(TypeError) { Class.new(Object.new) }
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o = Object.new
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c = class << o; self; end
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assert_raise(TypeError) { Class.new(c) }
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assert_raise(TypeError) { Class.new(Class) }
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assert_raise(TypeError) { eval("class Foo < Class; end") }
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m = "M\u{1f5ff}"
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o = Class.new {break eval("class #{m}; self; end.new")}
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assert_raise_with_message(TypeError, /#{m}/) {Class.new(o)}
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end
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def test_initialize_copy
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c = Class.new
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assert_raise(TypeError) { c.instance_eval { initialize_copy(1) } }
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o = Object.new
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c = class << o; self; end
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assert_raise(TypeError) { c.dup }
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assert_raise(TypeError) { BasicObject.dup }
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end
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def test_singleton_class
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assert_raise(TypeError) { 1.extend(Module.new) }
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assert_raise(TypeError) { 1.0.extend(Module.new) }
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assert_raise(TypeError) { (2.0**1000).extend(Module.new) }
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assert_raise(TypeError) { :foo.extend(Module.new) }
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assert_in_out_err([], <<-INPUT, %w(:foo :foo true true), [])
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module Foo; def foo; :foo; end; end
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false.extend(Foo)
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true.extend(Foo)
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p false.foo
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p true.foo
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p FalseClass.include?(Foo)
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p TrueClass.include?(Foo)
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INPUT
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end
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def test_uninitialized
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assert_raise(TypeError) { Class.allocate.new }
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assert_raise(TypeError) { Class.allocate.superclass }
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bug6863 = '[ruby-core:47148]'
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assert_raise(TypeError, bug6863) { Class.new(Class.allocate) }
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allocator = Class.instance_method(:allocate)
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assert_raise_with_message(TypeError, /prohibited/) {
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allocator.bind(Rational).call
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}
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assert_raise_with_message(TypeError, /prohibited/) {
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allocator.bind_call(Rational)
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}
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end
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def test_nonascii_name
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c = eval("class ::C\u{df}; self; end")
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assert_equal("C\u{df}", c.name, '[ruby-core:24600]')
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c = eval("class C\u{df}; self; end")
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assert_equal("TestClass::C\u{df}", c.name, '[ruby-core:24600]')
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end
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def test_invalid_next_from_class_definition
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assert_syntax_error("class C; next; end", /Invalid next/)
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end
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def test_invalid_break_from_class_definition
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assert_syntax_error("class C; break; end", /Invalid break/)
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end
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def test_invalid_redo_from_class_definition
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assert_syntax_error("class C; redo; end", /Invalid redo/)
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end
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def test_invalid_retry_from_class_definition
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assert_syntax_error("class C; retry; end", /Invalid retry/)
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end
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def test_invalid_return_from_class_definition
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assert_syntax_error("class C; return; end", /Invalid return/)
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end
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def test_invalid_yield_from_class_definition
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assert_raise(SyntaxError) {
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EnvUtil.suppress_warning {eval("class C; yield; end")}
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}
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end
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def test_clone
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original = Class.new {
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def foo
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return super()
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end
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}
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mod = Module.new {
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def foo
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return "mod#foo"
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end
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}
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copy = original.clone
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copy.send(:include, mod)
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assert_equal("mod#foo", copy.new.foo)
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end
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def test_nested_class_removal
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assert_normal_exit('File.__send__(:remove_const, :Stat); at_exit{File.stat(".")}; GC.start')
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end
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class PrivateClass
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end
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private_constant :PrivateClass
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def test_redefine_private_class
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assert_raise(NameError) do
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eval("class ::TestClass::PrivateClass; end")
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end
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eval <<-END
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class ::TestClass
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class PrivateClass
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def foo; 42; end
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end
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end
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END
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assert_equal(42, PrivateClass.new.foo)
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end
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StrClone = String.clone
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Class.new(StrClone)
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def test_cloned_class
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bug5274 = StrClone.new("[ruby-dev:44460]")
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assert_equal(bug5274, Marshal.load(Marshal.dump(bug5274)))
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end
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def test_cannot_reinitialize_class_with_initialize_copy # [ruby-core:50869]
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assert_in_out_err([], "#{<<~"begin;"}\n#{<<~'end;'}", ["Object"], [])
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begin;
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class Class
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def initialize_copy(*); super; end
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end
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class A; end
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class B; end
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A.send(:initialize_copy, Class.new(B)) rescue nil
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p A.superclass
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end;
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end
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class CloneTest
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def foo; TEST; end
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end
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CloneTest1 = CloneTest.clone
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CloneTest2 = CloneTest.clone
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class CloneTest1
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TEST = :C1
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end
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class CloneTest2
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TEST = :C2
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end
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def test_constant_access_from_method_in_cloned_class
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assert_equal :C1, CloneTest1.new.foo, '[Bug #15877]'
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assert_equal :C2, CloneTest2.new.foo, '[Bug #15877]'
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end
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def test_invalid_superclass
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assert_raise(TypeError) do
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eval <<-'end;'
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class C < nil
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end
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end;
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end
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assert_raise(TypeError) do
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eval <<-'end;'
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class C < false
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end
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end;
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end
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assert_raise(TypeError) do
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eval <<-'end;'
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class C < true
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end
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end;
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end
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assert_raise(TypeError) do
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eval <<-'end;'
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class C < 0
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end
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end;
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end
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assert_raise(TypeError) do
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eval <<-'end;'
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class C < ""
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end
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end;
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end
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m = Module.new
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n = "M\u{1f5ff}"
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c = m.module_eval "class #{n}; new; end"
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assert_raise_with_message(TypeError, /#{n}/) {
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eval <<-"end;"
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class C < c
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end
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end;
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}
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assert_raise_with_message(TypeError, /#{n}/) {
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Class.new(c)
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}
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assert_raise_with_message(TypeError, /#{n}/) {
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m.module_eval "class #{n} < Class.new; end"
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}
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end
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define_method :test_invalid_reset_superclass do
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class A; end
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class SuperclassCannotBeReset < A
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end
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assert_equal A, SuperclassCannotBeReset.superclass
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assert_raise_with_message(TypeError, /superclass mismatch/) {
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class SuperclassCannotBeReset < String
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end
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}
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assert_raise_with_message(TypeError, /superclass mismatch/, "[ruby-core:75446]") {
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class SuperclassCannotBeReset < Object
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end
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}
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assert_equal A, SuperclassCannotBeReset.superclass
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end
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def test_cloned_singleton_method_added
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bug5283 = '[ruby-dev:44477]'
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added = []
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c = Class.new
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c.singleton_class.class_eval do
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define_method(:singleton_method_added) {|mid| added << [self, mid]}
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def foo; :foo; end
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end
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added.clear
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d = c.clone
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assert_empty(added.grep(->(k) {c == k[0]}), bug5283)
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assert_equal(:foo, d.foo)
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end
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def test_clone_singleton_class_exists
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klass = Class.new do
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def self.bar; :bar; end
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end
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o = klass.new
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o.singleton_class
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clone = o.clone
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assert_empty(o.singleton_class.instance_methods(false))
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assert_empty(clone.singleton_class.instance_methods(false))
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assert_empty(o.singleton_class.singleton_class.instance_methods(false))
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assert_empty(clone.singleton_class.singleton_class.instance_methods(false))
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end
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def test_clone_when_singleton_class_of_singleton_class_exists
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klass = Class.new do
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def self.bar; :bar; end
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end
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o = klass.new
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o.singleton_class.singleton_class
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clone = o.clone
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assert_empty(o.singleton_class.instance_methods(false))
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assert_empty(clone.singleton_class.instance_methods(false))
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assert_empty(o.singleton_class.singleton_class.instance_methods(false))
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assert_empty(clone.singleton_class.singleton_class.instance_methods(false))
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end
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def test_clone_when_method_exists_on_singleton_class_of_singleton_class
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klass = Class.new do
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def self.bar; :bar; end
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end
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o = klass.new
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o.singleton_class.singleton_class.define_method(:s2_method) { :s2 }
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clone = o.clone
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assert_empty(o.singleton_class.instance_methods(false))
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assert_empty(clone.singleton_class.instance_methods(false))
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assert_equal(:s2, o.singleton_class.s2_method)
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assert_equal(:s2, clone.singleton_class.s2_method)
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assert_equal([:s2_method], o.singleton_class.singleton_class.instance_methods(false))
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assert_equal([:s2_method], clone.singleton_class.singleton_class.instance_methods(false))
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end
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def test_singleton_class_p
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feature7609 = '[ruby-core:51087] [Feature #7609]'
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assert_predicate(self.singleton_class, :singleton_class?, feature7609)
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assert_not_predicate(self.class, :singleton_class?, feature7609)
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end
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def test_freeze_to_s
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assert_nothing_raised("[ruby-core:41858] [Bug #5828]") {
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Class.new.freeze.clone.to_s
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}
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end
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def test_singleton_class_of_frozen_object
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obj = Object.new
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c = obj.singleton_class
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obj.freeze
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assert_raise_with_message(FrozenError, /frozen object/) {
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c.class_eval {def f; end}
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}
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end
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def test_singleton_class_message
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c = Class.new.freeze
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assert_raise_with_message(FrozenError, /frozen Class/) {
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def c.f; end
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}
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end
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def test_singleton_class_should_has_own_namespace
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# CONST in singleton class
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objs = []
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$i = 0
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2.times{
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objs << obj = Object.new
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class << obj
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CONST = ($i += 1)
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def foo
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CONST
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end
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end
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}
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assert_equal(1, objs[0].foo, '[Bug #10943]')
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assert_equal(2, objs[1].foo, '[Bug #10943]')
|
|
|
|
# CONST in block in singleton class
|
|
objs = []
|
|
$i = 0
|
|
|
|
2.times{
|
|
objs << obj = Object.new
|
|
class << obj
|
|
1.times{
|
|
CONST = ($i += 1)
|
|
}
|
|
def foo
|
|
[nil].map{
|
|
CONST
|
|
}
|
|
end
|
|
end
|
|
}
|
|
assert_equal([1], objs[0].foo, '[Bug #10943]')
|
|
assert_equal([2], objs[1].foo, '[Bug #10943]')
|
|
|
|
# class def in singleton class
|
|
objs = []
|
|
$xs = []
|
|
$i = 0
|
|
|
|
2.times{
|
|
objs << obj = Object.new
|
|
class << obj
|
|
CONST = ($i += 1)
|
|
class X
|
|
$xs << self
|
|
CONST = ($i += 1)
|
|
def foo
|
|
CONST
|
|
end
|
|
end
|
|
|
|
def x
|
|
X
|
|
end
|
|
end
|
|
}
|
|
assert_not_equal($xs[0], $xs[1], '[Bug #10943]')
|
|
assert_not_equal(objs[0].x, objs[1].x, '[Bug #10943]')
|
|
assert_equal(2, $xs[0]::CONST, '[Bug #10943]')
|
|
assert_equal(2, $xs[0].new.foo, '[Bug #10943]')
|
|
assert_equal(4, $xs[1]::CONST, '[Bug #10943]')
|
|
assert_equal(4, $xs[1].new.foo, '[Bug #10943]')
|
|
|
|
# class def in block in singleton class
|
|
objs = []
|
|
$xs = []
|
|
$i = 0
|
|
|
|
2.times{
|
|
objs << obj = Object.new
|
|
class << obj
|
|
1.times{
|
|
CONST = ($i += 1)
|
|
}
|
|
1.times{
|
|
class X
|
|
$xs << self
|
|
CONST = ($i += 1)
|
|
def foo
|
|
CONST
|
|
end
|
|
end
|
|
|
|
def x
|
|
X
|
|
end
|
|
}
|
|
end
|
|
}
|
|
assert_not_equal($xs[0], $xs[1], '[Bug #10943]')
|
|
assert_not_equal(objs[0].x, objs[1].x, '[Bug #10943]')
|
|
assert_equal(2, $xs[0]::CONST, '[Bug #10943]')
|
|
assert_equal(2, $xs[0].new.foo, '[Bug #10943]')
|
|
assert_equal(4, $xs[1]::CONST, '[Bug #10943]')
|
|
assert_equal(4, $xs[1].new.foo, '[Bug #10943]')
|
|
|
|
# method def in singleton class
|
|
ms = []
|
|
ps = $test_singleton_class_shared_cref_ps = []
|
|
2.times{
|
|
ms << Module.new do
|
|
class << self
|
|
$test_singleton_class_shared_cref_ps << Proc.new{
|
|
def xyzzy
|
|
self
|
|
end
|
|
}
|
|
end
|
|
end
|
|
}
|
|
|
|
ps.each{|p| p.call} # define xyzzy methods for each singleton classes
|
|
ms.each{|m|
|
|
assert_equal(m, m.xyzzy, "Bug #10871")
|
|
}
|
|
end
|
|
|
|
def test_namescope_error_message
|
|
m = Module.new
|
|
o = m.module_eval "class A\u{3042}; self; end.new"
|
|
assert_raise_with_message(TypeError, /A\u{3042}/) {
|
|
o::Foo
|
|
}
|
|
end
|
|
|
|
def test_redefinition_mismatch
|
|
m = Module.new
|
|
m.module_eval "A = 1", __FILE__, line = __LINE__
|
|
e = assert_raise_with_message(TypeError, /is not a class/) {
|
|
m.module_eval "class A; end"
|
|
}
|
|
assert_include(e.message, "#{__FILE__}:#{line}: previous definition")
|
|
n = "M\u{1f5ff}"
|
|
m.module_eval "#{n} = 42", __FILE__, line = __LINE__
|
|
e = assert_raise_with_message(TypeError, /#{n} is not a class/) {
|
|
m.module_eval "class #{n}; end"
|
|
}
|
|
assert_include(e.message, "#{__FILE__}:#{line}: previous definition")
|
|
|
|
assert_separately([], "#{<<~"begin;"}\n#{<<~"end;"}")
|
|
begin;
|
|
Date = (class C\u{1f5ff}; self; end).new
|
|
assert_raise_with_message(TypeError, /C\u{1f5ff}/) {
|
|
require 'date'
|
|
}
|
|
end;
|
|
end
|
|
|
|
def test_should_not_expose_singleton_class_without_metaclass
|
|
assert_normal_exit "#{<<~"begin;"}\n#{<<~'end;'}", '[Bug #11740]'
|
|
begin;
|
|
klass = Class.new(Array)
|
|
# The metaclass of +klass+ should handle #bla since it should inherit methods from meta:meta:Array
|
|
def (Array.singleton_class).bla; :bla; end
|
|
hidden = ObjectSpace.each_object(Class).find { |c| klass.is_a? c and c.inspect.include? klass.inspect }
|
|
raise unless hidden.nil?
|
|
end;
|
|
|
|
assert_normal_exit "#{<<~"begin;"}\n#{<<~'end;'}", '[Bug #11740]'
|
|
begin;
|
|
klass = Class.new(Array)
|
|
klass.singleton_class
|
|
# The metaclass of +klass+ should handle #bla since it should inherit methods from meta:meta:Array
|
|
def (Array.singleton_class).bla; :bla; end
|
|
hidden = ObjectSpace.each_object(Class).find { |c| klass.is_a? c and c.inspect.include? klass.inspect }
|
|
raise if hidden.nil?
|
|
end;
|
|
|
|
end
|
|
|
|
def test_assign_frozen_class_to_const
|
|
c = Class.new.freeze
|
|
assert_same(c, Module.new.module_eval("self::Foo = c"))
|
|
c = Class.new.freeze
|
|
assert_same(c, Module.new.const_set(:Foo, c))
|
|
end
|
|
end
|