input-range-progress-indicator.html

<!DOCTYPE html>
<body>
<!--
  The idea of this test is to test if ports that paint
  a progress indicator on the slider's groove are painting
  it correcly with a variety of range combinations.

  You'll see:
   - two horizontal sliders with the thumb at 25%.
   - two horizontal sliders with the thumb at 50%.
   - two horizontal sliders with the thumb at 75%.
-->

<div><input type=range value=-25 min=-50 max=50></div>
<div><input type=range value=125 min=100 max=200></div>
<div><input type=range value=0 min=-100 max=100></div>
<div><input type=range value=0 min=-500 max=500></div>
<div><input type=range value=-125 min=-200 max=-100></div>
<div><input type=range value=-25 min=-100 max=0></div>

</body>

chromium/third_party/blink/web_tests/fast/forms/range/input-range-progress-indicator.html