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_pkcs7.rb
    path of file: ./repos/jruby/test/mri/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::TestPKCS7 < OpenSSL::TestCase
  def setup
    super
    @rsa1024 = Fixtures.pkey("rsa1024")
    @rsa2048 = Fixtures.pkey("rsa2
    
  def test_signed
    store = OpenSSL::X509::Store.new
    store.add_cert(@ca_cert)
    ca_certs = [@ca_cert]

    data = "aaaaa\r\nbbbbb\r\nccccc\r\n"
    tmp = OpenSSL::PKCS7.sign(@ee1_cert, @rsa1024, data, ca_certs)
    p7 = OpenSSL::PKCS7.new(tmp.to_der)
    certs = p7.certificates
    signers = p7.signers
    assert(p7.verify([], store))
    assert_equal(data, p7.data)
    assert_equal(2, certs.size)
    assert_equal(@ee1_cert.subject.to_s, certs[0].subject.to_s)
    assert_equal(@ca_cert.subject.to_s, certs[1].subject.to_s)
    assert_equal(1, signers.size)
    assert_equal(@ee1_cert.serial, signers[0].serial)
    assert_equal(@ee1_cert.issuer.to_s, signers[0].issuer.to_s)

    # Normally OpenSSL tries to translate the supplied content into canonical
    # MIME format (e.g. a newline character is converted into CR+LF).
    # If the content is a binary, PKCS7::BINARY flag should be used.

    data = "aaaaa\nbbbbb\nccccc\n"
    flag = OpenSSL::PKCS7::BINARY
    tmp = OpenSSL::PKCS7.sign(@ee1_cert, @rsa1024, data, ca_certs, flag)
    p7 = OpenSSL::PKCS7.new(tmp.to_der)
    certs = p7.certificates
    signers = p7.signers
    assert(p7.verify([], store))
    assert_equal(data, p7.data)
    assert_equal(2, certs.size)
    assert_equal(@ee1_cert.subject.to_s, certs[0].subject.to_s)
    assert_equal(@ca_cert.subject.to_s, certs[1].subject.to_s)
    assert_equal(1, signers.size)
    assert_equal(@ee1_cert.serial, signers[0].serial)
    assert_equal(@ee1_cert.issuer.to_s, signers[0].issuer.to_s)

    # A signed-data which have multiple signatures can be created
    # through the following steps.
    #   1. create two signed-data
    #   2. copy signerInfo and certificate from one to another

    tmp1 = OpenSSL::PKCS7.sign(@ee1_cert, @rsa1024, data, [], flag)
    tmp2 = OpenSSL::PKCS7.sign(@ee2_cert, @rsa1024, data, [], flag)
    tmp1.add_signer(tmp2.signers[0])
    tmp1.add_certificate(@ee2_cert)

    p7 = OpenSSL::PKCS7.new(tmp1.to_der)
    certs = p7.certificates
    signers = p7.signers
    assert(p7.verify([], store))
    assert_equal(data, p7.data)
    assert_equal(2, certs.size)
    assert_equal(2, signers.size)
    assert_equal(@ee1_cert.serial, signers[0].serial)
    assert_equal(@ee1_cert.issuer.to_s, signers[0].issuer.to_s)
    assert_equal(@ee2_cert.serial, signers[1].serial)
    assert_equal(@ee2_cert.issuer.to_s, signers[1].issuer.to_s)
  end