third_party/WebKit/LayoutTests/fast/css/zoom-media-queries-resolution.html

   1 <!DOCTYPE html>
   2 <script src="../../resources/js-test.js"></script>
   3 <script>
   4     if (!window.eventSender) {
   5         document.write("This test does not work in manual mode.");
   6     } else {
   7         var initialResolution = window.devicePixelRatio;
   8         shouldBeTrue('matchMedia("(resolution: " + initialResolution + "dppx)").matches');
   9         shouldBeTrue('matchMedia("(-webkit-device-pixel-ratio: " + initialResolution + ")").matches');
  10
  11         eventSender.zoomPageIn();
  12
  13         shouldBeTrue('matchMedia("(resolution: " + initialResolution * 1.2 + "dppx)").matches');
  14         shouldBeTrue('matchMedia("(-webkit-device-pixel-ratio: " + initialResolution * 1.2 + ")").matches');
  15
  16         eventSender.zoomPageOut();
  17         eventSender.zoomPageOut();
  18
  19         shouldBeTrue('matchMedia("(resolution: " + initialResolution / 1.2 + "dppx)").matches');
  20         shouldBeTrue('matchMedia("(-webkit-device-pixel-ratio: " + initialResolution / 1.2 + ")").matches');
  21     }
  22 </script>