73 lines
1.6 KiB
Ruby
73 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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require 'test/unit'
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require 'weakref'
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class TestWeakRef < Test::Unit::TestCase
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def make_weakref(level = 10)
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if level > 0
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make_weakref(level - 1)
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else
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WeakRef.new(Object.new)
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end
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end
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def test_ref
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obj = Object.new
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weak = WeakRef.new(obj)
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assert_equal(obj.to_s, weak.to_s)
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assert_predicate(weak, :weakref_alive?)
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end
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def test_recycled
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weaks = []
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weak = nil
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100.times do
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weaks << make_weakref
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ObjectSpace.garbage_collect
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ObjectSpace.garbage_collect
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break if weak = weaks.find {|w| !w.weakref_alive?}
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end
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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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def test_repeated_object_memory_leak
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bug10537 = '[ruby-core:66428]'
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assert_no_memory_leak(%w(-rweakref), '', <<-'end;', bug10537, timeout: 60)
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a = Object.new
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150_000.times { WeakRef.new(a) }
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end;
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end
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end
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