scope test_G22RegionThinner

sS test_G22RegionThinner(S imgString) {
  var img = bwImageFromString(imgString);
  //img = bwWhiteBorder(1, 1, img);
  
  var image = toBufferedImage(img);
  
  var itr = Gazelle22_ImageToRegions(
    new FunctionTimings, image, new SnPSettings(image, 2));
  itr.withDiagonals(true);
  var region = g22_darkestRegion(itr!);
  
  G22RegionThinner_v2 thinner = new(region);
  step(thinner);
  ret bwImageToString(regionToBWImage_fullImageSize(thinner!));
}

svoid #test(S in, S out) {
  testFunctionValue(s -> "\n" + test_G22RegionThinner(s), in, "\n" + mlsUnindent(out));
}

svoid test_G22RegionThinner() {
  test(
    [[
      #####
      #####
      #####
    ]],
    [[
      _____
      _###_
      _____
    ]]);
    
  test(
    [[
      #####
      #####
    ]],
    [[
      #####
      #####
    ]]);
    
  test(
    [[
      ______
      _##___
      _###__
      __##__
      ____#_
      ______
    ]],
    [[
      ______
      ______
      __##__
      __##__
      ____#_
      ______
    ]]);
    
  test(
    [[
      ######_
      #####__
      #####__
      ######_
      ######_
      #######
      ######_
      #######
      ########_
      #######__
    ]],
    [[
      _______
      _###___
      _###___
      _####__
      _####__
      _#####_
      _####__
      _#####_
      _#####_
      _______
    ]]);
}