value-binding.html 2.76 KB
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<html>
<head>
  <meta charset="UTF-8">
  <title>iron-localstorage-value-binding</title>
  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">

  <script src="../../webcomponentsjs/webcomponents.js"></script>
  <script src="../../web-component-tester/browser.js"></script>
  <link rel="import" href="../iron-localstorage.html">

</head>
<body>

  <dom-module id="x-foo">
    <template>
      <div>{{value.foo}}</div>
    </template>
  </dom-module>

  <dom-module id="x-test">
    <template>
      <x-foo value="{{value}}"></x-foo>
      <iron-localstorage id="localstorage" name="iron-localstorage-test" value="{{value}}"></iron-localstorage>
    </template>
  </dom-module>

  <x-test></x-test>

  <script>

    window.localStorage.setItem('iron-localstorage-test', '{"foo":"bar"}');
    var xtest;

    suite('basic', function() {

      suiteSetup(function() {
        Polymer({
          is: 'x-foo',
          properties: {
            'value': {
              type: Object,
              notify: true
            }
          }
        });
        Polymer({
          is: 'x-test',
          properties: {
            'value': {
              type: Object,
              notify: true
            }
          }
        });
        window.localStorage.setItem('iron-localstorage-test', '{"foo":"bar"}');
        xtest = document.querySelector('x-test');
        xtest.$.localstorage.reload();
      });

      suiteTeardown(function() {
        window.localStorage.removeItem('iron-localstorage-test');
      });

      test('initial value', function() {
        assert.isNotNull(xtest.value);
        assert.equal(xtest.value.foo, 'bar');
      });

      test('set value', function() {
        var newValue = {'foo': 'zot'};
        xtest.value = newValue;
        xtest.$.localstorage.flushDebouncer('save');
        var v = window.localStorage.getItem(xtest.$.localstorage.name);
        v = JSON.parse(v);
        assert.equal(v.foo, newValue.foo);
      });

      test('save', function() {
        xtest.value.foo = 'quux';
        xtest.$.localstorage.save();
        var v = window.localStorage.getItem(xtest.$.localstorage.name);
        v = JSON.parse(v);
        assert.equal(v.foo, 'quux');
      });

    });

  </script>

</body>
</html>