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: polygon_test.rb
    path of file: ./repos/rgeo/test/geos_capi
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# -----------------------------------------------------------------------------
#
# Tests for the GEOS polygon implementation
#
# -----------------------------------------------------------------------------

require_relative "../test_helper"
require_relative "skip_capi"

class GeosPolygonTest < Minitest::Test # :nodoc:
  include RGeo::Tests::Common::PolygonTests
  prepend SkipCAPI

  def setup
    @factory
    
  def test_simplify_preserve_topology
    xys1 = [[0.0, 0.0], [5.0, 0.0], [10.0, 0.0], [10.0, 10.0], [5.0, 12.0], [0.0, 10.0], [0.0, 0.0]]
    xys2 = [[0.1, 0.1], [0.1, 0.6], [0.3, 0.8],  [0.5, 0.5],   [0.7, 0.3],  [0.3, 0.1],  [0.1, 0.1]]

    points1 = xys1.collect { |x, y| @factory.point(x, y) }
    points2 = xys2.collect { |x, y| @factory.point(x, y) }

    ln1 = @factory.line_string(points1)
    ln2 = @factory.line_string(points2)

    poly = @factory.polygon(ln1, [ln2])

    simplified = poly.simplify_preserve_topology(1)
    interior_points = simplified.interior_rings[0].points

    # https://github.com/libgeos/geos/pull/784
    if geos_version_match(">= 3.12.0")
      assert_equal 4, interior_points.length
    else
      assert_equal 5, interior_points.length
    end