dom/base/test/test_meta_viewport0.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4   <meta charset="utf-8">
   5   <title>meta viewport test</title>
   6   <script src="/tests/SimpleTest/SimpleTest.js"></script>
   7   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
   8   <script src="viewport_helpers.js"></script>
   9 </head>
  10 <body>
  11   <p>No &lt;meta name="viewport"&gt; tag</p>
  12   <script type="application/javascript">
  13     "use strict";
  14
  15     add_task(async function test1() {
  16       await SpecialPowers.pushPrefEnv(scaleRatio(1.0));
  17
  18       let info = getViewportInfo(800, 480);
  19       fuzzeq(info.defaultZoom, 0.25, "initial scale is clamped to the default mimumim scale");
  20       fuzzeq(info.minZoom, 0.25,     "minimum scale defaults to the absolute minimum");
  21       is(info.maxZoom,     10,       "maximum scale defaults to the absolute maximum");
  22       is(info.width,       980,      "width is the default width");
  23       is(info.height,      588,      "height is proportional to displayHeight");
  24       is(info.autoSize,    false,    "autoSize is disabled by default");
  25       is(info.allowZoom,   true,     "zooming is enabled by default");
  26
  27       info = getViewportInfo(490, 600);
  28       is(info.width,       980,     "width is still the default width");
  29       is(info.height,      1200,    "height is proportional to the new displayHeight");
  30     });
  31
  32     add_task(async function test2() {
  33       await SpecialPowers.pushPrefEnv(scaleRatio(1.5));
  34
  35       let info = getViewportInfo(800, 480);
  36       is(info.width,       980,     "width is still the default width");
  37       is(info.height,      588,     "height is still proportional to displayHeight");
  38     });
  39   </script>
  40 </body>
  41 </html>