chromium/third_party/blink/web_tests/external/wpt/css/css-images/normalization-linear-degenerate.html

<!doctype html>
<meta charset="utf-8">
<title>Linear gradient stop normalization</title>
<link rel="help" href="https://www.w3.org/TR/css-images-3/#repeating-gradients">
<meta name="assert" content="Rendering of repeating-linear-gradient w/ stops at the same place">
<link rel="match" href="reference/100x100-blue.html">
<style>
  #gradient {
    width: 100px;
    height: 100px;
    background-image: repeating-linear-gradient(orange 50%, blue 50%);
  }
</style>
<div id="gradient"></div>