test/ruby/test_gc.rb


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require 'test/unit'

$KCODE = 'none'

class TestGc < Test::Unit::TestCase
  class S
    def initialize(a)
      @a = a
    end
  end

  def test_gc
    begin
      1.upto(10000) {
        tmp = [0,1,2,3,4,5,6,7,8,9]
      }
      tmp = nil
      assert true
    rescue
      assert false
    end
    l=nil
    100000.times {
      l = S.new(l)
    }
    GC.start
    assert true   # reach here or dumps core
    l = []
    100000.times {
      l.push([l])
    }
    GC.start
    assert true   # reach here or dumps core
  end
end