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_x509ext.rb
    path of file: ./repos/ruby/test/openssl
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
require_relative 'utils'

if defined?(OpenSSL)

class OpenSSL::TestX509Extension < OpenSSL::TestCase
  def setup
    super
    @basic_constraints_value = OpenSSL::ASN1::Sequence([
      OpenSSL::ASN1::Boolean(true),   # CA
      OpenSSL::ASN1::Integer(2)       # pathlen
    ])
    @basic_constraints = OpenSSL::ASN1::Sequence([
      OpenSSL::ASN1::ObjectId("basicConstraints"),
      OpenSSL::ASN1::Boolean(true),
      OpenSSL::ASN1::OctetString(@basic_constraints_value.to_der),
    ])
  end

  def test_new
    ext = OpenSSL::X509::Extension.new(@basic_constraints.to_der)
    assert_equal("basicConstraints", ext.oid)
    assert_equal(true, ext.critical?)
    assert_equal("CA:TRUE, pathlen:2", ext.value)

    ext = OpenSSL::X509::Extension.new("2.5.29.19",
                                       @basic_constraints_value.to_der, true)
    assert_equal(@basic_constraints.to_der, ext.to_der)
  end

  def test_create_by_factory
    ef = OpenSSL::X509::ExtensionFactory.new

    bc = ef.create_extension("basicConstraints", "critical, CA:TRUE, pathlen:2")
    assert_equal(@basic_constraints.to_der, bc.to_der)

    bc = ef.create_extension("basicConstraints", "CA:TRUE, pathlen:2", true)
    assert_
    
  def test_create_by_factory
    ef = OpenSSL::X509::ExtensionFactory.new

    bc = ef.create_extension("basicConstraints", "critical, CA:TRUE, pathlen:2")
    assert_equal(@basic_constraints.to_der, bc.to_der)

    bc = ef.create_extension("basicConstraints", "CA:TRUE, pathlen:2", true)
    assert_equal(@basic_constraints.to_der, bc.to_der)

    ef.config = OpenSSL::Config.parse(<<-_end_of_cnf_)
    [crlDistPts]
    URI.1 = http://www.example.com/crl
    URI.2 = ldap://ldap.example.com/cn=ca?certificateRevocationList;binary

    [certPolicies]
    policyIdentifier = 2.23.140.1.2.1
    CPS.1 = http://cps.example.com
    _end_of_cnf_

    cdp = ef.create_extension("crlDistributionPoints", "@crlDistPts")
    assert_equal(false, cdp.critical?)
    assert_equal("crlDistributionPoints", cdp.oid)
    assert_include(cdp.value, "URI:http://www.example.com/crl")
    assert_include(cdp.value,
      "URI:ldap://ldap.example.com/cn=ca?certificateRevocationList;binary")

    cdp = ef.create_extension("crlDistributionPoints", "critical, @crlDistPts")
    assert_equal(true, cdp.critical?)
    assert_equal("crlDistributionPoints", cdp.oid)
    assert_include(cdp.value, "URI:http://www.example.com/crl")
    assert_include(cdp.value,
      "URI:ldap://ldap.example.com/cn=ca?certificateRevocationList;binary")

    cp = ef.create_extension("certificatePolicies", "@certPolicies")
    assert_equal(false, cp.critical?)
    assert_equal("certificatePolicies", cp.oid)
    assert_include(cp.value, "2.23.140.1.2.1")
    assert_include(cp.value, "http://cps.example.com")
  end