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assert 'Class#subclasses' do
a = Class.new
b = Class.new(a)
c = Class.new(b)
d = Class.new(a)
a_sub = a.subclasses
assert_equal(2, a_sub.size)
assert_true(a_sub.include?(b))
assert_true(a_sub.include?(d))
assert_equal([c], b.subclasses)
assert_equal([], c.subclasses)
end
assert 'Class#attached_object' do
foo = Class.new
foo_s = class <<foo
foo_s = self
end
assert_equal(foo, foo_s.attached_object)
fooi = foo.new
fooi_s = class <<fooi
fooi_s = self
end
assert_equal(fooi, fooi_s.attached_object)
assert_raise(TypeError){foo.attached_object}
assert_raise(TypeError){TrueClass.attached_object}
assert_raise(TypeError){NilClass.attached_object}
end
assert 'Class#class_exec' do
c = Class.new
class << c
def index
12345
end
end
c.class_exec do
def index
54321
end
end
assert_equal 12345, c.index
assert_equal 54321, c.new.index
end
|
