bower_components/paper-scroll-header-panel/test/scroll.html

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<html>
<head>
  <meta charset="UTF-8">
  <title>paper-scroll-header-panel test</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>
  <script src="../../test-fixture/test-fixture-mocha.js"></script>
  <link rel="import" href="../paper-scroll-header-panel.html">
  <link rel="import" href="../demo/sample-content.html">
  <link rel="import" href="../../paper-toolbar/paper-toolbar.html">
  <link rel="import" href="../../test-fixture/test-fixture.html">
</head>
<body>
  <test-fixture id="trivialProgress">
    <template>
      <paper-scroll-header-panel condenses>
        <paper-toolbar>
        </paper-toolbar>
        <div class="content">
        <sample-content size="100"></sample-content>
        </div>
      </paper-scroll-header-panel>
    </template>
  </test-fixture>
  <script>
    suite('scroll', function() {
      var scrollHeaderPanel;
      setup(function() {
        scrollHeaderPanel = fixture('trivialProgress');
        scrollHeaderPanel.measureHeaderHeight();
      });
      teardown(function() {
        scrollHeaderPanel.scroll(0);
      });
      test('scroll smoothly', function(done) {
        var destination = 100;
        var adjustments = 0;
        
        function check() {
          if (scrollHeaderPanel.scroller.scrollTop === destination) {
            assert.notEqual(adjustments, 0);
            done();
            return;
          }
          adjustments++;
          setTimeout(check, 0);
        }
        scrollHeaderPanel.scroll(destination, true);
        check();
      });
      test('condense smoothly', function(done) {
        flush(function() {
          var destination = 100;
          var adjustments = 0;
          function check() {
            if (scrollHeaderPanel.headerState === Polymer.PaperScrollHeaderPanel.HEADER_STATE_CONDENSED) {
              assert.notEqual(adjustments, 0);
              done();
              return;
            }
            adjustments++;
            setTimeout(check, 1);
          }
          scrollHeaderPanel.condense(true);
          check();
        });
      });
      test('condense immediately', function(done) {
        flush(function() {
          scrollHeaderPanel.condense();
          assert.equal(scrollHeaderPanel.headerState, Polymer.PaperScrollHeaderPanel.HEADER_STATE_CONDENSED);
          done();
        });
      });
      test('scroll to top smoothly', function(done) {
        scrollHeaderPanel.scroll(100);
        flush(function() {
          var adjustments = 0;
          function check() {
            if (scrollHeaderPanel.scroller.scrollTop === 0) {
              assert.notEqual(adjustments, 0);
              done();
              return;
            }
            adjustments++;
            setTimeout(check, 0);
          }
          scrollHeaderPanel.scrollToTop(true);
          check();
        });
      });
      test('scroll to top immediately', function(done) {
        scrollHeaderPanel.scroll(100);
        flush(function() {
          assert.equal(scrollHeaderPanel.scroller.scrollTop, 100);
          scrollHeaderPanel.scrollToTop();
          Polymer.Base.async(function() {
            assert.equal(scrollHeaderPanel.scroller.scrollTop, 0);
            done();
          }, 100);
        });
      });
    });
  </script>
</body>
</html>