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require 'test/unit'
require 'delegate'
class TestDelegateClass < Test::Unit::TestCase
module M
attr_reader :m
end
def test_extend
obj = DelegateClass(Array).new([])
obj.instance_eval { @m = :m }
obj.extend M
assert_equal(:m, obj.m, "[ruby-dev:33116]")
end
def test_systemcallerror_eq
e = SystemCallError.new(0)
assert((SimpleDelegator.new(e) == e) == (e == SimpleDelegator.new(e)), "[ruby-dev:34808]")
end
class Myclass < DelegateClass(Array);end
def test_delegateclass_class
myclass=Myclass.new([])
assert_equal(Myclass,myclass.class)
end
def test_simpledelegator_class
simple=SimpleDelegator.new([])
assert_equal(SimpleDelegator,simple.class)
end
class Object
def m
:o
end
end
class Foo
def m
:m
end
end
class Bar < DelegateClass(Foo)
end
def test_override
assert_equal(:o, Object.new.m)
assert_equal(:m, Foo.new.m)
assert_equal(:m, SimpleDelegator.new(Foo.new).m)
assert_equal(:m, Bar.new(Foo.new).m)
end
class IV < DelegateClass(Integer)
attr_accessor :var
def initialize
@var = 1
end
end
def test_marshal
bug1744 = '[ruby-core:24211]'
c = IV.new
assert_equal(1, c.var)
d = Marshal.load(Marshal.dump(c))
assert_equal(1, d.var, bug1744)
end
end
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