third_party/WebKit/LayoutTests/fast/css/script-tests/image-set-setting.js

   1 description("Test the setting of the -webkit-image-set function.");
   2
   3 function testComputedStyle(property, fullRule)
   4 {
   5     var div = document.createElement("div");
   6     document.body.appendChild(div);
   7     div.setAttribute("style", property + ": " + fullRule);
   8     var computedValue = div.style.backgroundImage;
   9     document.body.removeChild(div);
  10     return computedValue;
  11 }
  12
  13 function testImageSetRule(description, property, rule, expected)
  14 {
  15     debug("");
  16     debug(description + " : " + rule);
  17
  18     var fullRule = "-webkit-image-set(" + rule + ")";
  19     shouldBeEqualToString('testComputedStyle("' + property + '", "' + fullRule + '")', fullRule);
  20 }
  21
  22 testImageSetRule("Single value for background-image",
  23                 "background-image",
  24                 "url(http://www.webkit.org/a) 1x");
  25
  26 testImageSetRule("Multiple values for background-image",
  27                 "background-image",
  28                 "url(http://www.webkit.org/a) 1x, url(http://www.webkit.org/b) 2x");
  29
  30 testImageSetRule("Multiple values for background-image, out of order",
  31                 "background-image",
  32                 "url(http://www.webkit.org/c) 3x, url(http://www.webkit.org/b) 2x, url(http://www.webkit.org/a) 1x");
  33
  34 testImageSetRule("Duplicate values for background-image",
  35                 "background-image",
  36                 "url(http://www.webkit.org/c) 1x, url(http://www.webkit.org/b) 2x, url(http://www.webkit.org/a) 1x");
  37
  38 testImageSetRule("Fractional values for background-image",
  39                 "background-image",
  40                 "url(http://www.webkit.org/c) 0.2x, url(http://www.webkit.org/b) 2.3x, url(http://www.webkit.org/a) 12.3456x");
  41
  42 // FIXME: We should also be testing the behavior of negative values somewhere, but it's currently
  43 // broken.  http://wkb.ug/100132
  44
  45 successfullyParsed = true;