assert_headers_equal

# File lib/rubygems/package/tar_test_case.rb, line 26
  def assert_headers_equal(expected, actual)
    expected = expected.to_s unless String === expected
    actual = actual.to_s unless String === actual

    fields = ]
      name 100
      mode 8
      uid 8
      gid 8
      size 12
      mtime 12
      checksum 8
      typeflag 1
      linkname 100
      magic 6
      version 2
      uname 32
      gname 32
      devmajor 8
      devminor 8
      prefix 155
    ]

    offset = 0

    until fields.empty? do
      name = fields.shift
      length = fields.shift.to_i

      if name == "checksum"
        chksum_off = offset
        offset += length
        next
      end

      assert_equal expected[offset, length], actual[offset, length],
                   "Field #{name} of the tar header differs."

      offset += length
    end

    assert_equal expected[chksum_off, 8], actual[chksum_off, 8]
  end