зеркало из https://github.com/github/ruby.git
59 строки
1.3 KiB
Ruby
59 строки
1.3 KiB
Ruby
require 'test/unit'
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require 'weakref'
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require_relative './ruby/envutil'
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class TestWeakRef < Test::Unit::TestCase
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def make_weakref(level = 10)
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obj = Object.new
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str = obj.to_s
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level.times {obj = WeakRef.new(obj)}
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return WeakRef.new(obj), str
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end
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def test_ref
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weak, str = make_weakref
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assert_equal(str, weak.to_s)
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end
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def test_recycled
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weak, str = make_weakref
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assert_nothing_raised(WeakRef::RefError) {weak.to_s}
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assert_predicate(weak, :weakref_alive?)
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ObjectSpace.garbage_collect
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ObjectSpace.garbage_collect
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assert_raise(WeakRef::RefError) {weak.to_s}
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assert_not_predicate(weak, :weakref_alive?)
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end
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def test_not_reference_different_object
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bug7304 = '[ruby-core:49044]'
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weakrefs = []
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3.times do
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obj = Object.new
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def obj.foo; end
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weakrefs << WeakRef.new(obj)
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ObjectSpace.garbage_collect
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end
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assert_nothing_raised(NoMethodError, bug7304) {
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weakrefs.each do |weak|
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begin
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weak.foo
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rescue WeakRef::RefError
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end
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end
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}
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end
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def test_weakref_finalize
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bug7304 = '[ruby-core:49044]'
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assert_normal_exit %q{
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require 'weakref'
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obj = Object.new
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3.times do
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WeakRef.new(obj)
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ObjectSpace.garbage_collect
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end
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}, bug7304
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end
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end
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