api-console-assets/bower_components/app-layout/app-scroll-effects/test/utils.html

This repo only exists to publish api console components to npm

<!--
@license
Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE
The complete set of authors may be found at http://polymer.github.io/AUTHORS
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS
-->
<script>
  /**
   * Checks if an element has a given CSS text
   *
   * @param {HTMLElement} el
   * @param {string} cssText
   */
  function sameCSS(el, cssText) {
    var propName;
    var dummy = document.createElement('div');

    dummy.style.cssText = cssText;
    document.body.appendChild(dummy);

    var elStyle = window.getComputedStyle(el);
    var parts = cssText.split(/\s/);
    var dummyStyle = window.getComputedStyle(dummy);

    for (var i = 0; i < parts.length; i++) {
      if (parts[i].substr(-1, 1) != ':') {
        continue;
      }

      propName = parts[i].substr(0, parts[i].length - 1);

      if (elStyle[propName] && elStyle[propName] !== dummyStyle[propName]) {
        throw new Error('`' + propName + '` is different: ' +
          '`' + elStyle[propName] + '` != `' + dummyStyle[propName] + '`');
      }
    }
    return true;
  }

</script>