require 'test/unit' require_relative 'envutil' class TestObject < Test::Unit::TestCase def setup @verbose = $VERBOSE $VERBOSE = nil end def teardown $VERBOSE = @verbose end def test_dup assert_raise(TypeError) { 1.dup } assert_raise(TypeError) { true.dup } assert_raise(TypeError) { nil.dup } assert_raise(TypeError) do Object.new.instance_eval { initialize_copy(1) } end end def test_instance_of assert_raise(TypeError) { 1.instance_of?(1) } end def test_kind_of assert_raise(TypeError) { 1.kind_of?(1) } end def test_taint_frozen_obj o = Object.new o.freeze assert_raise(RuntimeError) { o.taint } o = Object.new o.taint o.freeze assert_raise(RuntimeError) { o.untaint } end def test_freeze_under_safe_4 o = Object.new assert_raise(SecurityError) do Thread.new do $SAFE = 4 o.freeze end.join end end def test_freeze_immediate assert_equal(false, 1.frozen?) 1.freeze assert_equal(true, 1.frozen?) assert_equal(false, 2.frozen?) end def test_nil_to_f assert_equal(0.0, nil.to_f) end def test_not assert_equal(false, Object.new.send(:!)) assert_equal(true, nil.send(:!)) end def test_true_and assert_equal(true, true & true) assert_equal(true, true & 1) assert_equal(false, true & false) assert_equal(false, true & nil) end def test_true_or assert_equal(true, true | true) assert_equal(true, true | 1) assert_equal(true, true | false) assert_equal(true, true | nil) end def test_true_xor assert_equal(false, true ^ true) assert_equal(false, true ^ 1) assert_equal(true, true ^ false) assert_equal(true, true ^ nil) end def test_false_and assert_equal(false, false & true) assert_equal(false, false & 1) assert_equal(false, false & false) assert_equal(false, false & nil) end def test_false_or assert_equal(true, false | true) assert_equal(true, false | 1) assert_equal(false, false | false) assert_equal(false, false | nil) end def test_false_xor assert_equal(true, false ^ true) assert_equal(true, false ^ 1) assert_equal(false, false ^ false) assert_equal(false, false ^ nil) end def test_methods o = Object.new a1 = o.methods a2 = o.methods(false) def o.foo; end assert_equal([:foo], o.methods(true) - a1) assert_equal([:foo], o.methods(false) - a2) end def test_methods2 c0 = Class.new c1 = Class.new(c0) c1.module_eval do public ; def foo; end protected; def bar; end private ; def baz; end end c2 = Class.new(c1) c2.module_eval do public ; def foo2; end protected; def bar2; end private ; def baz2; end end o0 = c0.new o2 = c2.new assert_equal([:baz, :baz2], (o2.private_methods - o0.private_methods).sort) assert_equal([:baz2], (o2.private_methods(false) - o0.private_methods(false)).sort) assert_equal([:bar, :bar2], (o2.protected_methods - o0.protected_methods).sort) assert_equal([:bar2], (o2.protected_methods(false) - o0.protected_methods(false)).sort) assert_equal([:foo, :foo2], (o2.public_methods - o0.public_methods).sort) assert_equal([:foo2], (o2.public_methods(false) - o0.public_methods(false)).sort) end def test_instance_variable_get o = Object.new o.instance_eval { @foo = :foo } assert_equal(:foo, o.instance_variable_get(:@foo)) assert_equal(nil, o.instance_variable_get(:@bar)) assert_raise(NameError) { o.instance_variable_get(:foo) } end def test_instance_variable_set o = Object.new o.instance_variable_set(:@foo, :foo) assert_equal(:foo, o.instance_eval { @foo }) assert_raise(NameError) { o.instance_variable_set(:foo, 1) } end def test_instance_variable_defined o = Object.new o.instance_eval { @foo = :foo } assert_equal(true, o.instance_variable_defined?(:@foo)) assert_equal(false, o.instance_variable_defined?(:@bar)) assert_raise(NameError) { o.instance_variable_defined?(:foo) } end def test_remove_instance_variable o = Object.new o.instance_eval { @foo = :foo } o.instance_eval { remove_instance_variable(:@foo) } assert_equal(false, o.instance_variable_defined?(:@foo)) end def test_convert_type o = Object.new def o.to_s; 1; end assert_raise(TypeError) { String(o) } def o.to_s; "o"; end assert_equal("o", String(o)) def o.respond_to?(*) false; end assert_raise(TypeError) { String(o) } end def test_check_convert_type o = Object.new def o.to_a; 1; end assert_raise(TypeError) { Array(o) } def o.to_a; [1]; end assert_equal([1], Array(o)) def o.respond_to?(*) false; end assert_equal([o], Array(o)) end def test_convert_hash assert_equal({}, Hash(nil)) assert_equal({}, Hash([])) assert_equal({key: :value}, Hash(key: :value)) assert_raise(TypeError) { Hash([1,2]) } assert_raise(TypeError) { Hash(Object.new) } o = Object.new def o.to_hash; {a: 1, b: 2}; end assert_equal({a: 1, b: 2}, Hash(o)) def o.to_hash; 9; end assert_raise(TypeError) { Hash(o) } end def test_to_integer o = Object.new def o.to_i; nil; end assert_raise(TypeError) { Integer(o) } def o.to_i; 42; end assert_equal(42, Integer(o)) def o.respond_to?(*) false; end assert_raise(TypeError) { Integer(o) } end class MyInteger def initialize(n); @num = n; end def to_int; @num; end def <=>(n); @num <=> n.to_int; end def <=(n); @num <= n.to_int; end def +(n); MyInteger.new(@num + n.to_int); end end def test_check_to_integer o1 = MyInteger.new(1) o9 = MyInteger.new(9) n = 0 Range.new(o1, o9).step(2) {|x| n += x.to_int } assert_equal(1+3+5+7+9, n) end def test_add_method_under_safe4 o = Object.new assert_raise(SecurityError) do Thread.new do $SAFE = 4 def o.foo end end.join end end def test_redefine_method_under_verbose assert_in_out_err([], <<-INPUT, %w(2), /warning: method redefined; discarding old foo$/) $VERBOSE = true o = Object.new def o.foo; 1; end def o.foo; 2; end p o.foo INPUT end def test_redefine_method_which_may_case_serious_problem assert_in_out_err([], <<-INPUT, [], /warning: redefining `object_id' may cause serious problems$/) $VERBOSE = false def (Object.new).object_id; end INPUT assert_in_out_err([], <<-INPUT, [], /warning: redefining `__send__' may cause serious problems$/) $VERBOSE = false def (Object.new).__send__; end INPUT end def test_remove_method assert_raise(SecurityError) do Thread.new do $SAFE = 4 Object.instance_eval { remove_method(:foo) } end.join end assert_raise(SecurityError) do Thread.new do $SAFE = 4 Class.instance_eval { remove_method(:foo) } end.join end c = Class.new c.freeze assert_raise(RuntimeError) do c.instance_eval { remove_method(:foo) } end c = Class.new do def meth1; "meth" end end d = Class.new(c) do alias meth2 meth1 end o1 = c.new assert_respond_to(o1, :meth1) assert_equal("meth", o1.meth1) o2 = d.new assert_respond_to(o2, :meth1) assert_equal("meth", o2.meth1) assert_respond_to(o2, :meth2) assert_equal("meth", o2.meth2) d.class_eval do remove_method :meth2 end bug2202 = '[ruby-core:26074]' assert_raise(NoMethodError, bug2202) {o2.meth2} %w(object_id __send__ initialize).each do |m| assert_in_out_err([], <<-INPUT, %w(:ok), /warning: removing `#{m}' may cause serious problems$/) $VERBOSE = false begin Class.new.instance_eval { remove_method(:#{m}) } rescue NameError p :ok end INPUT end end def test_method_missing assert_raise(ArgumentError) do 1.instance_eval { method_missing } end c = Class.new c.class_eval do protected def foo; end end assert_raise(NoMethodError) do c.new.foo end assert_raise(NoMethodError) do 1.instance_eval { method_missing(:method_missing) } end c.class_eval do undef_method(:method_missing) end assert_raise(ArgumentError) do c.new.method_missing end bug2494 = '[ruby-core:27219]' c = Class.new do def method_missing(meth, *args) super end end b = c.new foo rescue nil assert_nothing_raised(bug2494) {[b].flatten} end def test_respond_to_missing_string c = Class.new do def respond_to_missing?(id, priv) !(id !~ /\Agadzoks\d+\z/) ^ priv end end foo = c.new assert_equal(false, foo.respond_to?("gadzooks16")) assert_equal(true, foo.respond_to?("gadzooks17", true)) assert_equal(true, foo.respond_to?("gadzoks16")) assert_equal(false, foo.respond_to?("gadzoks17", true)) end def test_respond_to_missing c = Class.new do def respond_to_missing?(id, priv) if id == :foobar true else false end end def method_missing(id, *args) if id == :foobar return [:foo, *args] else super end end end foo = c.new assert_equal([:foo], foo.foobar); assert_equal([:foo, 1], foo.foobar(1)); assert_equal([:foo, 1, 2, 3, 4, 5], foo.foobar(1, 2, 3, 4, 5)); assert(foo.respond_to?(:foobar)) assert_equal(false, foo.respond_to?(:foobarbaz)) assert_raise(NoMethodError) do foo.foobarbaz end foobar = foo.method(:foobar) assert_equal(-1, foobar.arity); assert_equal([:foo], foobar.call); assert_equal([:foo, 1], foobar.call(1)); assert_equal([:foo, 1, 2, 3, 4, 5], foobar.call(1, 2, 3, 4, 5)); assert_equal(foobar, foo.method(:foobar)) assert_not_equal(foobar, c.new.method(:foobar)) c = Class.new(c) assert_equal(false, c.method_defined?(:foobar)) assert_raise(NameError, '[ruby-core:25748]') do c.instance_method(:foobar) end m = Module.new assert_equal(false, m.method_defined?(:foobar)) assert_raise(NameError, '[ruby-core:25748]') do m.instance_method(:foobar) end end def test_implicit_respond_to bug5158 = '[ruby-core:38799]' p = Object.new called = [] p.singleton_class.class_eval do define_method(:to_ary) do called << [:to_ary, bug5158] end end [[p]].flatten assert_equal([[:to_ary, bug5158]], called, bug5158) called = [] p.singleton_class.class_eval do define_method(:respond_to?) do |*a| called << [:respond_to?, *a] false end end [[p]].flatten assert_equal([[:respond_to?, :to_ary, true]], called, bug5158) end def test_implicit_respond_to_arity_1 p = Object.new called = [] p.singleton_class.class_eval do define_method(:respond_to?) do |a| called << [:respond_to?, a] false end end [[p]].flatten assert_equal([[:respond_to?, :to_ary]], called, '[bug:6000]') end def test_method_missing_passed_block bug5731 = '[ruby-dev:44961]' c = Class.new do def method_missing(meth, *args) yield(meth, *args) end end a = c.new result = nil assert_nothing_raised(LocalJumpError, bug5731) do a.foo {|x| result = x} end assert_equal(:foo, result, bug5731) result = nil e = a.enum_for(:foo) assert_nothing_raised(LocalJumpError, bug5731) do e.each {|x| result = x} end assert_equal(:foo, result, bug5731) c = Class.new do def respond_to_missing?(id, priv) true end def method_missing(id, *args, &block) return block.call(:foo, *args) end end foo = c.new result = nil assert_nothing_raised(LocalJumpError, bug5731) do foo.foobar {|x| result = x} end assert_equal(:foo, result, bug5731) result = nil assert_nothing_raised(LocalJumpError, bug5731) do foo.enum_for(:foobar).each {|x| result = x} end assert_equal(:foo, result, bug5731) result = nil foobar = foo.method(:foobar) foobar.call {|x| result = x} assert_equal(:foo, result, bug5731) result = nil foobar = foo.method(:foobar) foobar.enum_for(:call).each {|x| result = x} assert_equal(:foo, result, bug5731) end def test_send_with_no_arguments assert_raise(ArgumentError) { 1.send } end def test_send_with_block x = :ng 1.send(:times) { x = :ok } assert_equal(:ok, x) x = :ok o = Object.new def o.inspect yield if block_given? super end begin nil.public_send(o) { x = :ng } rescue end assert_equal(:ok, x) end def test_no_superclass_method bug2312 = '[ruby-dev:39581]' o = Object.new e = assert_raise(NoMethodError) { o.method(:__send__).call(:never_defined_test_no_superclass_method) } m1 = e.message assert_no_match(/no superclass method/, m1, bug2312) e = assert_raise(NoMethodError) { o.method(:__send__).call(:never_defined_test_no_superclass_method) } assert_equal(m1, e.message, bug2312) e = assert_raise(NoMethodError) { o.never_defined_test_no_superclass_method } assert_equal(m1, e.message, bug2312) end def test_superclass_method bug2312 = '[ruby-dev:39581]' assert_in_out_err(["-e", "module Enumerable;undef min;end; (1..2).min{}"], "", [], /no superclass method/, bug2312) end def test_specific_eval_with_wrong_arguments assert_raise(ArgumentError) do 1.instance_eval("foo") { foo } end assert_raise(ArgumentError) do 1.instance_eval end assert_raise(ArgumentError) do 1.instance_eval("", 1, 1, 1) end end class InstanceExec INSTANCE_EXEC = 123 end def test_instance_exec x = 1.instance_exec(42) {|a| self + a } assert_equal(43, x) x = "foo".instance_exec("bar") {|a| self + a } assert_equal("foobar", x) assert_raise(NameError) do InstanceExec.new.instance_exec { INSTANCE_EXEC } end end def test_extend assert_raise(ArgumentError) do 1.extend end end def test_untrusted obj = lambda { $SAFE = 4 x = Object.new x.instance_eval { @foo = 1 } x }.call assert_equal(true, obj.untrusted?) assert_equal(true, obj.tainted?) x = Object.new assert_equal(false, x.untrusted?) assert_raise(SecurityError) do lambda { $SAFE = 4 x.instance_eval { @foo = 1 } }.call end x = Object.new x.taint assert_raise(SecurityError) do lambda { $SAFE = 4 x.instance_eval { @foo = 1 } }.call end x.untrust assert_equal(true, x.untrusted?) assert_nothing_raised do lambda { $SAFE = 4 x.instance_eval { @foo = 1 } }.call end x.trust assert_equal(false, x.untrusted?) assert_raise(SecurityError) do lambda { $SAFE = 4 x.instance_eval { @foo = 1 } }.call end a = Object.new a.untrust assert_equal(true, a.untrusted?) b = a.dup assert_equal(true, b.untrusted?) c = a.clone assert_equal(true, c.untrusted?) a = Object.new b = lambda { $SAFE = 4 a.dup }.call assert_equal(true, b.untrusted?) a = Object.new b = lambda { $SAFE = 4 a.clone }.call assert_equal(true, b.untrusted?) end def test_to_s x = Object.new x.taint x.untrust s = x.to_s assert_equal(true, s.untrusted?) assert_equal(true, s.tainted?) end def test_exec_recursive Thread.current[:__recursive_key__] = nil a = [[]] a.inspect assert_nothing_raised do -> do $SAFE = 4 begin a.hash rescue ArgumentError end end.call end -> do assert_nothing_raised do $SAFE = 4 a.inspect end end.call -> do o = Object.new def o.to_ary(x); end def o.==(x); $SAFE = 4; false; end a = [[o]] b = [] b << b assert_nothing_raised do b == a end end.call end def test_singleton_class x = Object.new xs = class << x; self; end assert_equal(xs, x.singleton_class) y = Object.new ys = y.singleton_class assert_equal(class << y; self; end, ys) assert_equal(NilClass, nil.singleton_class) assert_equal(TrueClass, true.singleton_class) assert_equal(FalseClass, false.singleton_class) assert_raise(TypeError) do 123.singleton_class end assert_raise(TypeError) do :foo.singleton_class end end end