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|
# -*- coding: us-ascii -*-
require 'test/unit'
require_relative 'envutil'
class TestMethod < Test::Unit::TestCase
def setup
@verbose = $VERBOSE
$VERBOSE = nil
end
def teardown
$VERBOSE = @verbose
end
def m0() end
def m1(a) end
def m2(a, b) end
def mo1(a = nil, &b) end
def mo2(a, b = nil) end
def mo3(*a) end
def mo4(a, *b, &c) end
def mo5(a, *b, c) end
def mo6(a, *b, c, &d) end
def mo7(a, b = nil, *c, d, &e) end
def ma1((a), &b) nil && a end
class Base
def foo() :base end
end
class Derived < Base
def foo() :derived end
end
class T
def initialize; end
def initialize_copy(*) super end
def initialize_clone(*) super end
def initialize_dup(*) super end
def respond_to_missing?(*) super end
def normal_method; end
end
module M
def func; end
module_function :func
def meth; :meth end
end
def mv1() end
def mv2() end
private :mv2
def mv3() end
protected :mv3
class Visibility
def mv1() end
def mv2() end
private :mv2
def mv3() end
protected :mv3
end
def test_arity
assert_equal(0, method(:m0).arity)
assert_equal(1, method(:m1).arity)
assert_equal(2, method(:m2).arity)
assert_equal(-1, method(:mo1).arity)
assert_equal(-2, method(:mo2).arity)
assert_equal(-1, method(:mo3).arity)
assert_equal(-2, method(:mo4).arity)
assert_equal(-3, method(:mo5).arity)
assert_equal(-3, method(:mo6).arity)
end
def test_arity_special
assert_equal(-1, method(:__send__).arity)
end
def test_unbind
assert_equal(:derived, Derived.new.foo)
um = Derived.new.method(:foo).unbind
assert_instance_of(UnboundMethod, um)
Derived.class_eval do
def foo() :changed end
end
assert_equal(:changed, Derived.new.foo)
assert_equal(:derived, um.bind(Derived.new).call)
assert_raise(TypeError) do
um.bind(Base.new)
end
end
def test_callee
assert_equal(:test_callee, __method__)
assert_equal(:m, Class.new {def m; __method__; end}.new.m)
assert_equal(:m, Class.new {def m; tap{return __method__}; end}.new.m)
assert_equal(:m, Class.new {define_method(:m) {__method__}}.new.m)
assert_equal(:m, Class.new {define_method(:m) {tap{return __method__}}}.new.m)
assert_nil(eval("class TestCallee; __method__; end"))
assert_equal(:test_callee, __callee__)
[
["method", Class.new {def m; __callee__; end},],
["block", Class.new {def m; tap{return __callee__}; end},],
["define_method", Class.new {define_method(:m) {__callee__}}],
["define_method block", Class.new {define_method(:m) {tap{return __callee__}}}],
].each do |mesg, c|
c.class_eval {alias m2 m}
o = c.new
assert_equal(:m, o.m, mesg)
assert_equal(:m2, o.m2, mesg)
end
assert_nil(eval("class TestCallee; __callee__; end"))
end
def test_method_in_define_method_block
bug4606 = '[ruby-core:35386]'
c = Class.new do
[:m1, :m2].each do |m|
define_method(m) do
__method__
end
end
end
assert_equal(:m1, c.new.m1, bug4606)
assert_equal(:m2, c.new.m2, bug4606)
end
def test_method_in_block_in_define_method_block
bug4606 = '[ruby-core:35386]'
c = Class.new do
[:m1, :m2].each do |m|
define_method(m) do
tap { return __method__ }
end
end
end
assert_equal(:m1, c.new.m1, bug4606)
assert_equal(:m2, c.new.m2, bug4606)
end
def test_body
o = Object.new
def o.foo; end
assert_nothing_raised { RubyVM::InstructionSequence.disasm(o.method(:foo)) }
assert_nothing_raised { RubyVM::InstructionSequence.disasm("x".method(:upcase)) }
assert_nothing_raised { RubyVM::InstructionSequence.disasm(method(:to_s).to_proc) }
end
def test_new
c1 = Class.new
c1.class_eval { def foo; :foo; end }
c2 = Class.new(c1)
c2.class_eval { private :foo }
o = c2.new
o.extend(Module.new)
assert_raise(NameError) { o.method(:bar) }
assert_raise(NameError) { o.public_method(:foo) }
assert_equal(:foo, o.method(:foo).call)
end
def test_eq
o = Object.new
class << o
def foo; end
alias bar foo
def baz; end
end
assert_not_equal(o.method(:foo), nil)
m = o.method(:foo)
def m.foo; end
assert_not_equal(o.method(:foo), m)
assert_equal(o.method(:foo), o.method(:foo))
assert_equal(o.method(:foo), o.method(:bar))
assert_not_equal(o.method(:foo), o.method(:baz))
end
def test_hash
o = Object.new
def o.foo; end
assert_kind_of(Integer, o.method(:foo).hash)
assert_equal(Array.instance_method(:map).hash, Array.instance_method(:collect).hash)
end
def test_owner
c = Class.new do
def foo; end
end
assert_equal(c, c.instance_method(:foo).owner)
c2 = Class.new(c)
assert_equal(c, c2.instance_method(:foo).owner)
end
def test_owner_missing
c = Class.new do
def respond_to_missing?(name, bool)
name == :foo
end
end
c2 = Class.new(c)
assert_equal(c, c.new.method(:foo).owner)
assert_equal(c2, c2.new.method(:foo).owner)
end
def test_receiver_name_owner
o = Object.new
def o.foo; end
m = o.method(:foo)
assert_equal(o, m.receiver)
assert_equal(:foo, m.name)
assert_equal(class << o; self; end, m.owner)
assert_equal(:foo, m.unbind.name)
assert_equal(class << o; self; end, m.unbind.owner)
class << o
alias bar foo
end
m = o.method(:bar)
assert_equal(:bar, m.name)
assert_equal(:foo, m.original_name)
end
def test_instance_method
c = Class.new
c.class_eval do
def foo; :foo; end
private :foo
end
o = c.new
o.method(:foo).unbind
assert_raise(NoMethodError) { o.foo }
c.instance_method(:foo).bind(o)
assert_equal(:foo, o.instance_eval { foo })
assert_raise(NameError) { c.public_instance_method(:foo) }
def o.bar; end
m = o.method(:bar).unbind
assert_raise(TypeError) { m.bind(Object.new) }
feature4254 = '[ruby-core:34267]'
m = M.instance_method(:meth)
assert_equal(:meth, m.bind(Object.new).call, feature4254)
end
def test_define_method
c = Class.new
c.class_eval { def foo; :foo; end }
o = c.new
def o.bar; :bar; end
assert_raise(TypeError) do
c.class_eval { define_method(:foo, :foo) }
end
assert_raise(ArgumentError) do
c.class_eval { define_method }
end
c2 = Class.new(c)
c2.class_eval { define_method(:baz, o.method(:foo)) }
assert_equal(:foo, c2.new.baz)
assert_raise(TypeError) do
Class.new.class_eval { define_method(:foo, o.method(:foo)) }
end
assert_raise(TypeError) do
Class.new.class_eval { define_method(:bar, o.method(:bar)) }
end
end
def test_define_singleton_method
o = Object.new
def o.foo(c)
c.class_eval { define_method(:foo) }
end
c = Class.new
o.foo(c) { :foo }
assert_equal(:foo, c.new.foo)
o = Object.new
o.instance_eval { define_singleton_method(:foo) { :foo } }
assert_equal(:foo, o.foo)
assert_raise(TypeError) do
Class.new.class_eval { define_method(:foo, Object.new) }
end
assert_raise(TypeError) do
Module.new.module_eval {define_method(:foo, Base.instance_method(:foo))}
end
end
def test_define_singleton_method_with_extended_method
bug8686 = "[ruby-core:56174]"
m = Module.new do
extend self
def a
"a"
end
end
assert_nothing_raised(bug8686) do
m.define_singleton_method(:a, m.method(:a))
end
end
def test_define_method_transplating
feature4254 = '[ruby-core:34267]'
m = Module.new {define_method(:meth, M.instance_method(:meth))}
assert_equal(:meth, Object.new.extend(m).meth, feature4254)
c = Class.new {define_method(:meth, M.instance_method(:meth))}
assert_equal(:meth, c.new.meth, feature4254)
end
def test_define_method_visibility
c = Class.new do
public
define_method(:foo) {:foo}
protected
define_method(:bar) {:bar}
private
define_method(:baz) {: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))
m = Module.new do
module_function
define_method(:foo) {:foo}
end
assert_equal(true, m.respond_to?(:foo))
assert_equal(false, m.public_method_defined?(:foo))
assert_equal(false, m.protected_method_defined?(:foo))
assert_equal(true, m.private_method_defined?(:foo))
end
def test_define_method_in_private_scope
bug9005 = '[ruby-core:57747] [Bug #9005]'
c = Class.new
class << c
public :define_method
end
TOPLEVEL_BINDING.eval("proc{|c|c.define_method(:x) {|x|throw x}}").call(c)
o = c.new
assert_throw(bug9005) {o.x(bug9005)}
end
def test_singleton_define_method_in_private_scope
bug9141 = '[ruby-core:58497] [Bug #9141]'
o = Object.new
class << o
public :define_singleton_method
end
TOPLEVEL_BINDING.eval("proc{|o|o.define_singleton_method(:x) {|x|throw x}}").call(o)
assert_throw(bug9141) do
o.x(bug9141)
end
end
def test_super_in_proc_from_define_method
c1 = Class.new {
def m
:m1
end
}
c2 = Class.new(c1) { define_method(:m) { Proc.new { super() } } }
# c2.new.m.call should return :m1, but currently it raise NoMethodError.
# see [Bug #4881] and [Bug #3136]
assert_raise(NoMethodError) {
c2.new.m.call
}
end
def test_clone
o = Object.new
def o.foo; :foo; end
m = o.method(:foo)
def m.bar; :bar; end
assert_equal(:foo, m.clone.call)
assert_equal(:bar, m.clone.bar)
end
def test_inspect
o = Object.new
def o.foo; end
m = o.method(:foo)
assert_equal("#<Method: #{ o.inspect }.foo>", m.inspect)
m = o.method(:foo)
assert_equal("#<UnboundMethod: #{ class << o; self; end.inspect }#foo>", m.unbind.inspect)
c = Class.new
c.class_eval { def foo; end; }
m = c.new.method(:foo)
assert_equal("#<Method: #{ c.inspect }#foo>", m.inspect)
m = c.instance_method(:foo)
assert_equal("#<UnboundMethod: #{ c.inspect }#foo>", m.inspect)
c2 = Class.new(c)
c2.class_eval { private :foo }
m2 = c2.new.method(:foo)
assert_equal("#<Method: #{ c2.inspect }(#{ c.inspect })#foo>", m2.inspect)
bug7806 = '[ruby-core:52048] [Bug #7806]'
c3 = Class.new(c)
c3.class_eval { alias bar foo }
m3 = c3.new.method(:bar)
assert_equal("#<Method: #{c3.inspect}(#{c.inspect})#bar(foo)>", m3.inspect, bug7806)
end
def test_callee_top_level
assert_in_out_err([], "p __callee__", %w(nil), [])
end
def test_caller_top_level
assert_in_out_err([], "p caller", %w([]), [])
end
def test_caller_negative_level
assert_raise(ArgumentError) { caller(-1) }
end
def test_attrset_ivar
c = Class.new
c.class_eval { attr_accessor :foo }
o = c.new
o.method(:foo=).call(42)
assert_equal(42, o.foo)
assert_raise(ArgumentError) { o.method(:foo=).call(1, 2, 3) }
assert_raise(ArgumentError) { o.method(:foo).call(1) }
end
def test_default_accessibility
tmethods = T.public_instance_methods
assert_include tmethods, :normal_method, 'normal methods are public by default'
assert_not_include tmethods, :initialize, '#initialize is private'
assert_not_include tmethods, :initialize_copy, '#initialize_copy is private'
assert_not_include tmethods, :initialize_clone, '#initialize_clone is private'
assert_not_include tmethods, :initialize_dup, '#initialize_dup is private'
assert_not_include tmethods, :respond_to_missing?, '#respond_to_missing? is private'
mmethods = M.public_instance_methods
assert_not_include mmethods, :func, 'module methods are private by default'
assert_include mmethods, :meth, 'normal methods are public by default'
end
define_method(:pm0) {||}
define_method(:pm1) {|a|}
define_method(:pm2) {|a, b|}
define_method(:pmo1) {|a = nil, &b|}
define_method(:pmo2) {|a, b = nil|}
define_method(:pmo3) {|*a|}
define_method(:pmo4) {|a, *b, &c|}
define_method(:pmo5) {|a, *b, c|}
define_method(:pmo6) {|a, *b, c, &d|}
define_method(:pmo7) {|a, b = nil, *c, d, &e|}
define_method(:pma1) {|(a), &b| nil && a}
def test_bound_parameters
assert_equal([], method(:m0).parameters)
assert_equal([[:req, :a]], method(:m1).parameters)
assert_equal([[:req, :a], [:req, :b]], method(:m2).parameters)
assert_equal([[:opt, :a], [:block, :b]], method(:mo1).parameters)
assert_equal([[:req, :a], [:opt, :b]], method(:mo2).parameters)
assert_equal([[:rest, :a]], method(:mo3).parameters)
assert_equal([[:req, :a], [:rest, :b], [:block, :c]], method(:mo4).parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c]], method(:mo5).parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c], [:block, :d]], method(:mo6).parameters)
assert_equal([[:req, :a], [:opt, :b], [:rest, :c], [:req, :d], [:block, :e]], method(:mo7).parameters)
assert_equal([[:req], [:block, :b]], method(:ma1).parameters)
end
def test_unbound_parameters
assert_equal([], self.class.instance_method(:m0).parameters)
assert_equal([[:req, :a]], self.class.instance_method(:m1).parameters)
assert_equal([[:req, :a], [:req, :b]], self.class.instance_method(:m2).parameters)
assert_equal([[:opt, :a], [:block, :b]], self.class.instance_method(:mo1).parameters)
assert_equal([[:req, :a], [:opt, :b]], self.class.instance_method(:mo2).parameters)
assert_equal([[:rest, :a]], self.class.instance_method(:mo3).parameters)
assert_equal([[:req, :a], [:rest, :b], [:block, :c]], self.class.instance_method(:mo4).parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c]], self.class.instance_method(:mo5).parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c], [:block, :d]], self.class.instance_method(:mo6).parameters)
assert_equal([[:req, :a], [:opt, :b], [:rest, :c], [:req, :d], [:block, :e]], self.class.instance_method(:mo7).parameters)
assert_equal([[:req], [:block, :b]], self.class.instance_method(:ma1).parameters)
end
def test_bmethod_bound_parameters
assert_equal([], method(:pm0).parameters)
assert_equal([[:req, :a]], method(:pm1).parameters)
assert_equal([[:req, :a], [:req, :b]], method(:pm2).parameters)
assert_equal([[:opt, :a], [:block, :b]], method(:pmo1).parameters)
assert_equal([[:req, :a], [:opt, :b]], method(:pmo2).parameters)
assert_equal([[:rest, :a]], method(:pmo3).parameters)
assert_equal([[:req, :a], [:rest, :b], [:block, :c]], method(:pmo4).parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c]], method(:pmo5).parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c], [:block, :d]], method(:pmo6).parameters)
assert_equal([[:req, :a], [:opt, :b], [:rest, :c], [:req, :d], [:block, :e]], method(:pmo7).parameters)
assert_equal([[:req], [:block, :b]], method(:pma1).parameters)
end
def test_bmethod_unbound_parameters
assert_equal([], self.class.instance_method(:pm0).parameters)
assert_equal([[:req, :a]], self.class.instance_method(:pm1).parameters)
assert_equal([[:req, :a], [:req, :b]], self.class.instance_method(:pm2).parameters)
assert_equal([[:opt, :a], [:block, :b]], self.class.instance_method(:pmo1).parameters)
assert_equal([[:req, :a], [:opt, :b]], self.class.instance_method(:pmo2).parameters)
assert_equal([[:rest, :a]], self.class.instance_method(:pmo3).parameters)
assert_equal([[:req, :a], [:rest, :b], [:block, :c]], self.class.instance_method(:pmo4).parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c]], self.class.instance_method(:pmo5).parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c], [:block, :d]], self.class.instance_method(:pmo6).parameters)
assert_equal([[:req, :a], [:opt, :b], [:rest, :c], [:req, :d], [:block, :e]], self.class.instance_method(:pmo7).parameters)
assert_equal([[:req], [:block, :b]], self.class.instance_method(:pma1).parameters)
end
def test_public_method_with_zsuper_method
c = Class.new
c.class_eval do
def foo
:ok
end
private :foo
end
d = Class.new(c)
d.class_eval do
public :foo
end
assert_equal(:ok, d.new.public_method(:foo).call)
end
def test_public_methods_with_extended
m = Module.new do def m1; end end
a = Class.new do def a; end end
bug = '[ruby-dev:41553]'
obj = a.new
assert_equal([:a], obj.public_methods(false), bug)
obj.extend(m)
assert_equal([:m1, :a], obj.public_methods(false), bug)
end
def test_visibility
assert_equal('method', defined?(mv1))
assert_equal('method', defined?(mv2))
assert_equal('method', defined?(mv3))
assert_equal('method', defined?(self.mv1))
assert_equal(nil, defined?(self.mv2))
assert_equal('method', defined?(self.mv3))
assert_equal(true, respond_to?(:mv1))
assert_equal(false, respond_to?(:mv2))
assert_equal(false, respond_to?(:mv3))
assert_equal(true, respond_to?(:mv1, true))
assert_equal(true, respond_to?(:mv2, true))
assert_equal(true, respond_to?(:mv3, true))
assert_nothing_raised { mv1 }
assert_nothing_raised { mv2 }
assert_nothing_raised { mv3 }
assert_nothing_raised { self.mv1 }
assert_raise(NoMethodError) { self.mv2 }
assert_nothing_raised { self.mv3 }
v = Visibility.new
assert_equal('method', defined?(v.mv1))
assert_equal(nil, defined?(v.mv2))
assert_equal(nil, defined?(v.mv3))
assert_equal(true, v.respond_to?(:mv1))
assert_equal(false, v.respond_to?(:mv2))
assert_equal(false, v.respond_to?(:mv3))
assert_equal(true, v.respond_to?(:mv1, true))
assert_equal(true, v.respond_to?(:mv2, true))
assert_equal(true, v.respond_to?(:mv3, true))
assert_nothing_raised { v.mv1 }
assert_raise(NoMethodError) { v.mv2 }
assert_raise(NoMethodError) { v.mv3 }
assert_nothing_raised { v.__send__(:mv1) }
assert_nothing_raised { v.__send__(:mv2) }
assert_nothing_raised { v.__send__(:mv3) }
assert_nothing_raised { v.instance_eval { mv1 } }
assert_nothing_raised { v.instance_eval { mv2 } }
assert_nothing_raised { v.instance_eval { mv3 } }
end
def test_bound_method_entry
bug6171 = '[ruby-core:43383]'
assert_ruby_status([], <<-EOC, bug6171)
class Bug6171
def initialize(target)
define_singleton_method(:reverse, target.method(:reverse).to_proc)
end
end
100.times {p = Bug6171.new('test'); 1000.times {p.reverse}}
EOC
end
def test___dir__
assert_instance_of String, __dir__
assert_equal(File.dirname(File.realpath(__FILE__)), __dir__)
bug8436 = '[ruby-core:55123] [Bug #8436]'
assert_equal(__dir__, eval("__dir__", binding), bug8436)
bug8662 = '[ruby-core:56099] [Bug #8662]'
assert_equal("arbitrary", eval("__dir__", binding, "arbitrary/file.rb"), bug8662)
end
def test_alias_owner
bug7613 = '[ruby-core:51105]'
bug7993 = '[Bug #7993]'
c = Class.new {
def foo
end
prepend Module.new
attr_reader :zot
}
x = c.new
class << x
alias bar foo
end
assert_equal(c, c.instance_method(:foo).owner)
assert_equal(c, x.method(:foo).owner)
assert_equal(x.singleton_class, x.method(:bar).owner)
assert_not_equal(x.method(:foo), x.method(:bar), bug7613)
assert_equal(c, x.method(:zot).owner, bug7993)
assert_equal(c, c.instance_method(:zot).owner, bug7993)
end
def test_included
m = Module.new {
def foo
end
}
c = Class.new {
def foo
end
include m
}
assert_equal(c, c.instance_method(:foo).owner)
end
def test_prepended
bug7836 = '[ruby-core:52160] [Bug #7836]'
bug7988 = '[ruby-core:53038] [Bug #7988]'
m = Module.new {
def foo
end
}
c = Class.new {
def foo
end
prepend m
}
assert_raise(NameError, bug7988) {Module.new{prepend m}.instance_method(:bar)}
true || c || bug7836
end
def test_gced_bmethod
assert_normal_exit %q{
require 'irb'
IRB::Irb.module_eval do
define_method(:eval_input) do
IRB::Irb.module_eval { alias_method :eval_input, :to_s }
GC.start
Kernel
end
end
IRB.start
}, '[Bug #7825]'
end
def test_unlinked_method_entry_in_method_object_bug
bug8100 = '[ruby-core:53640] [Bug #8100]'
begin
assert_normal_exit %q{
loop do
def x
"hello" * 1000
end
method(:x).call
end
}, bug8100, timeout: 2
rescue Timeout::Error => e
else
end
assert_raise(Timeout::Error, bug8100) {raise e if e}
end
def test_singleton_method
feature8391 = '[ruby-core:54914] [Feature #8391]'
c1 = Class.new
c1.class_eval { def foo; :foo; end }
o = c1.new
def o.bar; :bar; end
assert_nothing_raised(NameError) {o.method(:foo)}
assert_raise(NameError, feature8391) {o.singleton_method(:foo)}
m = assert_nothing_raised(NameError, feature8391) {break o.singleton_method(:bar)}
assert_equal(:bar, m.call, feature8391)
end
end
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