Quelle  rgba-011.html   Sprache: HTML

<!DOCTYPE html>

  <meta charset="UTF-8">

  <title>CSS Values and Units Test: rgba() function syntax (complex)</title>

  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
  <link rel="help" href="https://www.w3.org/TR/css-color-3/#rgba-color">
  <link rel="help" href="https://www.w3.org/TR/css-color-4/#rgb-functions">
  <link rel="help" href="https://www.w3.org/TR/css-values-4/#combine-integers">

  <meta name="assert" content="This test checks the syntax allowed by rgba() function. White space characters, instead of commas, are allowed between numerical values. <alpha-value> can be omitted for rgba() function, in which case it must defaults to 100%. Finally, rgba() function can take real numbers but their computed values will be rounded to the nearest integer, with values halfway between adjacent integers rounded towards positive infinity.">

  <script src="/resources/testharness.js"></script>

  <script src="/resources/testharnessreport.js"></script>

  <div id="log"></div>

  <div id="target"></div>

  <script>
  function startTesting()
  {

    var targetElement = document.getElementById("target");

    function compareValue(property_name, calcValue, expectedValue, description)
    {

    test(function()
      {

      targetElement.style.setProperty(property_name, calcValue);

      var computedCalcValue = getComputedStyle(targetElement)[property_name];

      targetElement.style.setProperty(property_name, expectedValue);

      var computedExpectedValue = getComputedStyle(targetElement)[property_name];

      assert_equals(computedCalcValue, computedExpectedValue);

      }, description);
    }

    compareValue("background-color", "rgba(0.4 127.5 0.3)", "rgb(0, 128, 0)", "testing background-color: rgba(0.4 127.5 0.3)");

  }

  startTesting();

  </script>