LayoutTests/svg/masking/mask-negative-scale.svg

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<!-- Test for https://bugs.webkit.org/show_bug.cgi?id=97409 -->
<defs>
<g id="img" transform="translate(10,10)">
  <rect width="200" height="200" fill="red"/>
  <rect width="100" height="100" fill="green"/>
  <rect width="50" height="50" fill="blue"/>
</g>
</defs>

<mask id="mask">
  <rect x="10" y="10" width="90" height="90" fill="white"/>
</mask>

<g transform="translate(200, 200)">
<g transform="matrix(1 0 0 1 -100 -100)" mask="url(#mask)">
  <use xlink:href="#img"/>
</g>
<g transform="matrix(-1 0 0 -1 -100 -100)" mask="url(#mask)">
  <use xlink:href="#img"/>
</g>
<g transform="matrix(-1 0 0 1 -100 -100)" mask="url(#mask)">
  <use xlink:href="#img"/>
</g>
<g transform="matrix(1 0 0 -1 -100 -100)" mask="url(#mask)">
  <use xlink:href="#img"/>
</g>
</g>
</svg>