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require 'test/unit'
require "-test-/string/string"
require_relative '../../ruby/envutil'
class Test_StringModifyExpand < Test::Unit::TestCase
def test_modify_expand_memory_leak
before = after = nil
args = [
"--disable=gems", "-r-test-/string/string",
"-I"+File.expand_path("../../..", __FILE__),
"-rruby/memory_status",
"-e", <<-CMD
s=Bug::String.new
size=Memory::Status.new.size
puts size
10.times{s.modify_expand!(size)}
s.replace("")
puts Memory::Status.new.size
CMD
]
status = EnvUtil.invoke_ruby(args, "", true) do |in_p, out_p, err_p, pid|
before, after = out_p.readlines.map(&:to_i)
Process.wait(pid)
$?
end
assert_equal(true, status.success?)
assert_operator after.fdiv(before), :<, 2
end
end
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