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_pkey_rsa.rb
    path of file: ./repos/ruby-packer/ruby/test/openssl
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
require_relative "utils"

if defined?(OpenSSL)

class OpenSSL::TestPKeyRSA < OpenSSL::PKeyTestCase
  def test_padding
    key = OpenSSL::PKey::RSA.new(512, 3)

    # Need right size for raw mode
    plain0 = "x" * (512/8)
    cipher = key.private_encrypt(plain0, OpenSSL::PKey::RSA::NO_PADDING)
    plain1 = key.public_decrypt(cipher, OpenSSL::PKey::RSA::NO_PAD
    
  def test_PUBKEY
    rsa1024 = Fixtures.pkey("rsa1024")
    asn1 = OpenSSL::ASN1::Sequence([
      OpenSSL::ASN1::Sequence([
        OpenSSL::ASN1::ObjectId("rsaEncryption"),
        OpenSSL::ASN1::Null(nil)
      ]),
      OpenSSL::ASN1::BitString(
        OpenSSL::ASN1::Sequence([
          OpenSSL::ASN1::Integer(rsa1024.n),
          OpenSSL::ASN1::Integer(rsa1024.e)
        ]).to_der
      )
    ])
    key = OpenSSL::PKey::RSA.new(asn1.to_der)
    assert_not_predicate key, :private?
    assert_same_rsa dup_public(rsa1024), key

    pem = <<~EOF
    -----BEGIN PUBLIC KEY-----
    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDLwsSw1ECnPtT+PkOgHhcGA71n
    wC2/nL85VBGnRqDxOqjVh7CxaKPERYHsk4BPCkE3brtThPWc9kjHEQQ7uf9Y1rbC
    z0layNqHyywQEVLFmp1cpIt/Q3geLv8ZD9pihowKJDyMDiN6ArYUmZczvW4976MU
    3+l54E6lF/JfFEU5hwIDAQAB
    -----END PUBLIC KEY-----
    EOF
    key = OpenSSL::PKey::RSA.new(pem)
    assert_same_rsa dup_public(rsa1024), key

    assert_equal asn1.to_der, dup_public(rsa1024).to_der
    assert_equal pem, dup_public(rsa1024).export
  end