111 lines
2.5 KiB
Ruby
111 lines
2.5 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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class TestClone < Test::Unit::TestCase
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module M001; end
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module M002; end
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module M003; include M002; end
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module M002; include M001; end
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module M003; include M002; end
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def test_clone
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foo = Object.new
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def foo.test
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"test"
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end
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bar = foo.clone
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def bar.test2
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"test2"
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end
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assert_equal("test2", bar.test2)
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assert_equal("test", bar.test)
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assert_equal("test", foo.test)
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assert_raise(NoMethodError) {foo.test2}
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assert_equal([M003, M002, M001], M003.ancestors)
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end
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def test_frozen_properties_retained_on_clone
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obj = Object.new.freeze
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cloned_obj = obj.clone
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assert_predicate(obj, :frozen?)
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assert_predicate(cloned_obj, :frozen?)
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end
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def test_ivar_retained_on_clone
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obj = Object.new
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obj.instance_variable_set(:@a, 1)
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cloned_obj = obj.clone
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assert_equal(obj.instance_variable_get(:@a), 1)
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assert_equal(cloned_obj.instance_variable_get(:@a), 1)
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end
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def test_ivars_retained_on_extended_obj_clone
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ivars = { :@a => 1, :@b => 2, :@c => 3, :@d => 4 }
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obj = Object.new
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ivars.each do |ivar_name, val|
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obj.instance_variable_set(ivar_name, val)
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end
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cloned_obj = obj.clone
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ivars.each do |ivar_name, val|
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assert_equal(obj.instance_variable_get(ivar_name), val)
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assert_equal(cloned_obj.instance_variable_get(ivar_name), val)
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end
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end
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def test_frozen_properties_and_ivars_retained_on_clone_with_ivar
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obj = Object.new
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obj.instance_variable_set(:@a, 1)
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obj.freeze
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cloned_obj = obj.clone
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assert_predicate(obj, :frozen?)
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assert_equal(obj.instance_variable_get(:@a), 1)
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assert_predicate(cloned_obj, :frozen?)
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assert_equal(cloned_obj.instance_variable_get(:@a), 1)
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end
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def test_user_flags
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assert_separately([], <<-EOS)
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#
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class Array
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undef initialize_copy
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def initialize_copy(*); end
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end
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x = [1, 2, 3].clone
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assert_equal [], x, '[Bug #14847]'
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EOS
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assert_separately([], <<-EOS)
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#
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class Array
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undef initialize_copy
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def initialize_copy(*); end
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end
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x = [1,2,3,4,5,6,7][1..-2].clone
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x.push(1,1,1,1,1)
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assert_equal [1, 1, 1, 1, 1], x, '[Bug #14847]'
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EOS
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assert_separately([], <<-EOS)
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#
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class Hash
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undef initialize_copy
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def initialize_copy(*); end
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end
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h = {}
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h.default_proc = proc { raise }
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h = h.clone
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assert_equal nil, h[:not_exist], '[Bug #14847]'
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EOS
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end
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end
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