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|
require 'test/unit'
require_relative 'envutil'
class TestClass < Test::Unit::TestCase
# ------------------
# Various test classes
# ------------------
class ClassOne
attr :num_args
@@subs = []
def initialize(*args)
@num_args = args.size
@args = args
end
def [](n)
@args[n]
end
def ClassOne.inherited(klass)
@@subs.push klass
end
def subs
@@subs
end
end
class ClassTwo < ClassOne
end
class ClassThree < ClassOne
end
class ClassFour < ClassThree
end
# ------------------
# Start of tests
# ------------------
def test_s_inherited
assert_equal([ClassTwo, ClassThree, ClassFour], ClassOne.new.subs)
end
def test_s_new
c = Class.new
assert_same(Class, c.class)
assert_same(Object, c.superclass)
c = Class.new(Fixnum)
assert_same(Class, c.class)
assert_same(Fixnum, c.superclass)
end
def test_00_new_basic
a = ClassOne.new
assert_equal(ClassOne, a.class)
assert_equal(0, a.num_args)
a = ClassOne.new(1, 2, 3)
assert_equal(3, a.num_args)
assert_equal(1, a[0])
end
def test_01_new_inherited
a = ClassTwo.new
assert_equal(ClassTwo, a.class)
assert_equal(0, a.num_args)
a = ClassTwo.new(1, 2, 3)
assert_equal(3, a.num_args)
assert_equal(1, a[0])
end
def test_superclass
assert_equal(ClassOne, ClassTwo.superclass)
assert_equal(Object, ClassTwo.superclass.superclass)
assert_equal(BasicObject, ClassTwo.superclass.superclass.superclass)
end
def test_class_cmp
assert_raise(TypeError) { Class.new <= 1 }
assert_raise(TypeError) { Class.new >= 1 }
assert_nil(Class.new <=> 1)
end
def test_class_initialize
assert_raise(TypeError) do
Class.new.instance_eval { initialize }
end
end
def test_instanciate_singleton_class
c = class << Object.new; self; end
assert_raise(TypeError) { c.new }
end
def test_superclass_of_basicobject
assert_equal(nil, BasicObject.superclass)
end
def test_module_function
c = Class.new
assert_raise(TypeError) do
Module.instance_method(:module_function).bind(c).call(:foo)
end
end
def test_method_redefinition
feature2155 = '[ruby-dev:39400]'
line = __LINE__+4
stderr = EnvUtil.verbose_warning do
Class.new do
def foo; end
def foo; end
end
end
assert_match(/:#{line}: warning: method redefined; discarding old foo/, stderr)
assert_match(/:#{line-1}: warning: previous definition of foo/, stderr, feature2155)
stderr = EnvUtil.verbose_warning do
Class.new do
def foo; end
alias bar foo
def foo; end
end
end
assert_equal("", stderr)
stderr = EnvUtil.verbose_warning do
Class.new do
def foo; end
alias bar foo
alias bar foo
end
end
assert_equal("", stderr)
line = __LINE__+4
stderr = EnvUtil.verbose_warning do
Class.new do
define_method(:foo) do end
def foo; end
end
end
assert_match(/:#{line}: warning: method redefined; discarding old foo/, stderr)
assert_match(/:#{line-1}: warning: previous definition of foo/, stderr, feature2155)
stderr = EnvUtil.verbose_warning do
Class.new do
define_method(:foo) do end
alias bar foo
alias bar foo
end
end
assert_equal("", stderr)
stderr = EnvUtil.verbose_warning do
Class.new do
def foo; end
undef foo
end
end
assert_equal("", stderr)
end
def test_check_inheritable
assert_raise(TypeError) { Class.new(Object.new) }
o = Object.new
c = class << o; self; end
assert_raise(TypeError) { Class.new(c) }
assert_raise(TypeError) { Class.new(Class) }
assert_raise(TypeError) { eval("class Foo < Class; end") }
end
def test_initialize_copy
c = Class.new
assert_raise(TypeError) { c.instance_eval { initialize_copy(1) } }
o = Object.new
c = class << o; self; end
assert_raise(TypeError) { c.dup }
assert_raise(TypeError) { BasicObject.dup }
end
def test_singleton_class
assert_raise(TypeError) { 1.extend(Module.new) }
assert_raise(TypeError) { :foo.extend(Module.new) }
assert_in_out_err([], <<-INPUT, %w(:foo :foo true true), [])
module Foo; def foo; :foo; end; end
false.extend(Foo)
true.extend(Foo)
p false.foo
p true.foo
p FalseClass.include?(Foo)
p TrueClass.include?(Foo)
INPUT
end
def test_uninitialized
assert_raise(TypeError) { Class.allocate.new }
assert_raise(TypeError) { Class.allocate.superclass }
end
def test_nonascii_name
c = eval("class ::C\u{df}; self; end")
assert_equal("C\u{df}", c.name, '[ruby-core:24600]')
c = eval("class C\u{df}; self; end")
assert_equal("TestClass::C\u{df}", c.name, '[ruby-core:24600]')
end
def test_invalid_jump_from_class_definition
assert_raise(SyntaxError) { eval("class C; next; end") }
assert_raise(SyntaxError) { eval("class C; break; end") }
assert_raise(SyntaxError) { eval("class C; redo; end") }
assert_raise(SyntaxError) { eval("class C; retry; end") }
assert_raise(SyntaxError) { eval("class C; return; end") }
assert_raise(SyntaxError) { eval("class C; yield; end") }
end
def test_clone
original = Class.new {
def foo
return super()
end
}
mod = Module.new {
def foo
return "mod#foo"
end
}
copy = original.clone
copy.send(:include, mod)
assert_equal("mod#foo", copy.new.foo)
end
def test_nested_class_removal
assert_normal_exit('File.__send__(:remove_const, :Stat); at_exit{File.stat(".")}; GC.start')
end
class PrivateClass
end
private_constant :PrivateClass
def test_redefine_private_class
assert_raise(NameError) do
eval("class ::TestClass::PrivateClass; end")
end
eval <<-END
class ::TestClass
class PrivateClass
def foo; 42; end
end
end
END
assert_equal(42, PrivateClass.new.foo)
end
end
|
