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bower_components/iron-autogrow-textarea/test/basic.html 5.19 KB
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  <!doctype html>
  <!--
  @license
  Copyright (c) 2015 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.txt
  The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
  The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
  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.txt
  -->
  <html>
    <head>
  
      <title>iron-autogrow-textarea tests</title>
  
      <meta charset="utf-8">
      <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
        <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=yes">
  
      <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
  
      <script src="../../web-component-tester/browser.js"></script>
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      <script src="../../iron-test-helpers/mock-interactions.js"></script>
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      <link rel="import" href="../iron-autogrow-textarea.html">
  
    </head>
    <body>
  
      <test-fixture id="basic">
        <template>
          <iron-autogrow-textarea></iron-autogrow-textarea>
        </template>
      </test-fixture>
  
      <test-fixture id="has-bindValue">
        <template>
          <iron-autogrow-textarea bind-value="foobar"></iron-autogrow-textarea>
        </template>
      </test-fixture>
  
      <test-fixture id="rows">
        <template>
          <iron-autogrow-textarea rows="3"></iron-autogrow-textarea>
        </template>
      </test-fixture>
  
      <script>
  
        suite('basic', function() {
  
          test('setting bindValue sets textarea value', function() {
            var autogrow = fixture('basic');
            var textarea = autogrow.textarea;
  
            autogrow.bindValue = 'batman';
            assert.equal(textarea.value, autogrow.bindValue, 'textarea value equals to bindValue');
          });
  
          test('can set an initial bindValue', function() {
            var autogrow = fixture('has-bindValue');
            assert.equal(autogrow.textarea.value, 'foobar', 'textarea value equals to initial bindValue');
          });
  
          test('can set an initial number of rows', function() {
            var autogrow = fixture("rows");
            assert.equal(autogrow.textarea.rows, 3, 'textarea has rows=3');
          });
  
          test('adding rows grows the textarea', function() {
            var autogrow = fixture('basic');
            var initialHeight = autogrow.offsetHeight;
  
            autogrow.bindValue = 'batman\nand\nrobin';
            var finalHeight = autogrow.offsetHeight
            assert.isTrue(finalHeight > initialHeight);
          });
  
          test('removing rows shrinks the textarea', function() {
            var autogrow = fixture('basic');
            autogrow.bindValue = 'batman\nand\nrobin';
            var initialHeight = autogrow.offsetHeight;
  
            autogrow.bindValue = 'batman';
            var finalHeight = autogrow.offsetHeight
            assert.isTrue(finalHeight < initialHeight);
          });
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          test('an undefined bindValue is the empty string', function() {
            var autogrow = fixture('basic');
            var initialHeight = autogrow.offsetHeight;
  
            autogrow.bindValue = 'batman\nand\nrobin';
            var finalHeight = autogrow.offsetHeight;
            assert.isTrue(finalHeight > initialHeight);
  
            autogrow.bindValue = undefined;
            assert.equal(autogrow.offsetHeight, initialHeight);
            assert.equal(autogrow.textarea.value, '');
          });
  
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          test('textarea selection works', function() {
            var autogrow = fixture('basic');
            var textarea = autogrow.textarea;
            autogrow.bindValue = 'batman\nand\nrobin';
  
            autogrow.selectionStart = 3;
            autogrow.selectionEnd = 5;
  
            assert.equal(textarea.selectionStart, 3);
            assert.equal(textarea.selectionEnd, 5);
          });
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        });
  
        suite('focus/blur events', function() {
          var input;
  
          setup(function() {
            input = fixture('basic');
          });
  
          test('focus/blur events fired on host element', function(done) {
            var nFocusEvents = 0;
            var nBlurEvents = 0;
            input.addEventListener('focus', function() {
              nFocusEvents += 1;
              // setTimeout to wait for potentially more, erroneous events
              setTimeout(function() {
                assert.equal(nFocusEvents, 1, 'one focus event fired');
                MockInteractions.blur(input.textarea);
              });
            });
            input.addEventListener('blur', function() {
              nBlurEvents += 1;
              // setTimeout to wait for potentially more, erroneous events
              setTimeout(function() {
                assert.equal(nBlurEvents, 1, 'one blur event fired');
                done();
              });
            });
            MockInteractions.focus(input.textarea);
          });
  
        });
  
        suite('validation', function() {
          test('a required textarea with no text is invalid', function() {
            var input = fixture('basic');
            input.required = true;
            assert.isFalse(input.validate());
  
            input.bindValue = 'batman';
            assert.isTrue(input.validate());
          });
        });
  
      </script>
  
    </body>
  </html>