You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: test_openssl.rb
    path of file: ./repos/jruby/test/jruby
    
    the code of the file until where you have to start completion: require 'test/unit'
require 'openssl'

class TestOpenSSL < Test::Unit::TestCase

  def test_csr_request_extens
    
  def test_csr_request_extensions
    key = OpenSSL::PKey::RSA.new(512)
    csr = OpenSSL::X509::Request.new

    csr.version = 0
    csr.subject = OpenSSL::X509::Name.new([["CN", 'example.com']])
    csr.public_key = key.public_key

    names = OpenSSL::X509::ExtensionFactory.new.
      create_extension("subjectAltName", 'DNS:example.com', false)

    extReq = OpenSSL::ASN1::Set([OpenSSL::ASN1::Sequence([names])])
    csr.add_attribute(OpenSSL::X509::Attribute.new("extReq", extReq))

    csr.sign(key, OpenSSL::Digest::SHA256.new)

    # The combination of the extreq and the stringification / revivification
    # is what triggers the bad behaviour in the extension. (Any extended
    # request type should do, but this matches my observed problems)
    csr = OpenSSL::X509::Request.new(csr.to_s)

    assert_equal '/CN=example.com', csr.subject.to_s
  end

  if OpenSSL::OPENSSL_VERSION_NUMBER > 0x00908000

    def test_098_features
      sha224_a = "abd37534c7d9a2efb9465de931cd7055ffdb8879563ae98078d6d6d5"
      sha256_a = "ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb"
      sha384_a = "54a59b9f22b0b80880d8427e548b7c23abd873486e1f035dce9cd697e85175033caa88e6d57bc35efae0b5afd3145f31"
      sha512_a = "1f40fc92da241694750979ee6cf582f2d5d7d28e18335de05abc54d0560e0f5302860c652bf08d560252aa5e74210546f369fbbbce8c12cfc7957b2652fe9a75"

      assert_equal(sha224_a, OpenSSL::Digest::SHA224.hexdigest("a"))
      assert_equal(sha256_a, OpenSSL::Digest::SHA256.hexdigest("a"))
      assert_equal(sha384_a, OpenSSL::Digest::SHA384.hexdigest("a"))
      assert_equal(sha512_a, OpenSSL::Digest::SHA512.hexdigest("a"))

      assert_equal(sha224_a, encode16(OpenSSL::Digest::SHA224.digest("a")))
      assert_equal(sha256_a, encode16(OpenSSL::Digest::SHA256.digest("a")))
      assert_equal(sha384_a, encode16(OpenSSL::Digest::SHA384.digest("a")))
      assert_equal(sha512_a, encode16(OpenSSL::Digest::SHA512.digest("a")))
    end

    def encode16(str)
      str.unpack("H*").first
    end

  end