tests/qunit/suites/resources/jquery/jquery.hidpi.test.js

   1 ( function ( $ ) {
   2         QUnit.module( 'jquery.hidpi', QUnit.newMwEnvironment() );
   3
   4         QUnit.test( 'devicePixelRatio', 1, function ( assert ) {
   5                 var devicePixelRatio = $.devicePixelRatio();
   6                 assert.equal( typeof devicePixelRatio, 'number', '$.devicePixelRatio() returns a number' );
   7         } );
   8
   9         QUnit.test( 'matchSrcSet', 6, function ( assert ) {
  10                 var srcset = 'onefive.png 1.5x, two.png 2x';
  11
  12                 // Nice exact matches
  13                 assert.equal( $.matchSrcSet( 1, srcset ), null, '1.0 gives no match' );
  14                 assert.equal( $.matchSrcSet( 1.5, srcset ), 'onefive.png', '1.5 gives match' );
  15                 assert.equal( $.matchSrcSet( 2, srcset ), 'two.png', '2 gives match' );
  16
  17                 // Non-exact matches; should return the next-biggest specified
  18                 assert.equal( $.matchSrcSet( 1.25, srcset ), null, '1.25 gives no match' );
  19                 assert.equal( $.matchSrcSet( 1.75, srcset ), 'onefive.png', '1.75 gives match to 1.5' );
  20                 assert.equal( $.matchSrcSet( 2.25, srcset ), 'two.png', '2.25 gives match to 2' );
  21         } );
  22 }( jQuery ) );