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<meta charset="UTF-8">
<title>paper-icon-button a11y 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="A11yIconButtons">
  <template>
    <paper-icon-button id="iconButton1" icon="add"></paper-icon-button>
    <paper-icon-button id="iconButton2" icon="add" disabled></paper-icon-button>
    <paper-icon-button id="iconButton3" icon="add" aria-label="custom"></paper-icon-button>
    <paper-icon-button id="iconButton4" icon="add" alt="alt text"></paper-icon-button>
    <paper-icon-button id="iconButton5" icon="add" aria-label="custom" alt="alt text" ></paper-icon-button>
  </template>
</test-fixture>

<script>

  var b1;
  var b2;
  var b3;
  var b4;
  var b5;

  setup(function() {
    var iconButtons = fixture('A11yIconButtons');

    b1 = iconButtons[0];
    b2 = iconButtons[1];
    b3 = iconButtons[2];
    b4 = iconButtons[3];
    b5 = iconButtons[4];
  });

  test('aria role is a button', function() {
    assert.strictEqual(b1.getAttribute('role'), 'button');
  });

  test('aria-disabled is set', function() {
    assert.strictEqual(b2.getAttribute('aria-disabled'), 'true');
    b2.removeAttribute('disabled');
    assert.strictEqual(b2.getAttribute('aria-disabled'), 'false');
  });

  test('user-defined aria-label is preserved', function() {
    assert.strictEqual(b3.getAttribute('aria-label'), 'custom');
    b3.icon = 'arrow-forward';
    assert.strictEqual(b3.getAttribute('aria-label'), 'custom');
  });

  test('alt attribute is used for the aria-label', function() {
    assert.strictEqual(b4.getAttribute('aria-label'), 'alt text');
    b4.icon = 'arrow-forward';
    assert.strictEqual(b4.getAttribute('aria-label'), 'alt text');
  });

  test('aria-label wins over alt attribute', function() {
    assert.strictEqual(b5.getAttribute('aria-label'), 'custom');
    b5.icon = 'arrow-forward';
    b5.alt = 'other alt'
    assert.strictEqual(b5.getAttribute('aria-label'), 'custom');
  });

  test('alt attribute can be updated', function() {
    assert.strictEqual(b4.getAttribute('aria-label'), 'alt text');
    b4.alt = 'alt again';
    assert.strictEqual(b4.getAttribute('aria-label'), 'alt again');
  });

</script>

</body> </html>