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<meta charset="UTF-8">
<title>paper-icon-button basic tests</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">

<script src="../../webcomponentsjs/webcomponents-lite.js"></script>
<script src="../../web-component-tester/browser.js"></script>

<link rel="import" href="../../iron-icons/iron-icons.html">
<link rel="import" href="../paper-icon-button.html">

</head> <body>

<test-fixture id="TrivialIconButton">
  <template>
    <div style="line-height:30px;">
      <paper-icon-button id="fab1" icon="add"></paper-icon-button>
    </div>
  </template>
</test-fixture>

<test-fixture id="SrcIconButton">
  <template>
    <paper-icon-button src="add.png"></paper-icon-button>
  </template>
</test-fixture>

<script>

  var b1;
  var b2;

  function centerOf(element) {
    var rect = element.getBoundingClientRect();
    return {left: rect.left + rect.width / 2, top: rect.top + rect.height / 2};
  }

  function approxEqual(p1, p2) {
    return Math.abs(p1.left - p2.left) <= 2 && Math.abs(p1.top-p2.top) <= 2;
  }

  setup(function() {
    b1 = fixture('TrivialIconButton').querySelector('#fab1');
    b2 = fixture('SrcIconButton');
  });

  test('applies an icon specified by the `icon` attribute', function() {
    assert.strictEqual(!!b1.$.icon.src, false);
    assert.ok(Polymer.dom(b1.$.icon.root).querySelector('svg'));
  });

  test('applies an icon specified by the `src` attribute', function() {

    assert.strictEqual(!!b2.$.icon.src, true);
    assert.ok(b2.$.icon.src);
  });

  test('renders correctly independent of line height', function() {
    assert.ok(approxEqual(centerOf(b1.$.icon), centerOf(b1)));
  });
</script>

</body> </html>