third_party/WebKit/LayoutTests/http/tests/loading/preload-image-srcset-2x.html

   1 <html>
   2 <head>
   3 <script src="/js-test-resources/js-test.js"></script>
   4 <script>
   5     window.targetScaleFactor = 2;
   6 </script>
   7 <script src="../resources/srcset-helper.js"></script>
   8 <script src="http://127.0.0.1:8000/resources/slow-script.pl?delay=100"></script>
   9 </head>
  10 <body>
  11 <script>
  12     shouldBeFalse("internals.isPreloaded('resources/preload-test.jpg');");
  13     shouldBeTrue("internals.isPreloaded('resources/base-image2.png');");
  14     shouldBeFalse("internals.isPreloaded('resources/base-image1.png');");
  15     shouldBeFalse("internals.isPreloaded('resources/base-image3.png');");
  16     shouldBeTrue("internals.isPreloaded('resources/image2.png');");
  17 </script>
  18 <div>This test passes if the fallback image (defined in the src attribute) is not preloaded, but the 2x version (defined in srcset) is.</div>
  19 <div>The second image is here to make sure isPreloaded is working properly</div>
  20 <img height="100" width="100" src="resources/preload-test.jpg" srcset="resources/base-image1.png 1x, resources/base-image3.png 3x, resources/base-image2.png 2x">
  21 <img src="resources/image2.png">
  22 </body>
  23 </html>
  24