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<title>iron-resizable-behavior tests</title>
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<link rel="import" href="../iron-resizable-behavior.html">
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<!–

Notes on Polyfill compatibility in tests:

–>

<test-fixture id="TestElement">
  <template>
    <test-element></test-element>
  </template>
</test-fixture>

<script>

suite('iron-resizable-behavior', function() {
  function ListenForResize(el, expectsResize) {
    var listener = function(event) {
      var target = event.path ? event.path[0] : event.target;
      pendingNotifications--;
    };

    if (expectsResize !== false) {
      pendingNotifications++;
    }

    el.addEventListener('iron-resize', listener);

    return {
      el: el,
      remove: function() {
        el.removeEventListener('iron-resize', listener);
      }
    };
  }

  function RemoveListeners(listeners) {
    listeners.forEach(function(listener) {
      listener.remove();
    });
  }

  var pendingNotifications;
  var testEl;

  setup(function() {
    pendingNotifications = 0;
    testEl = fixture('TestElement');
  });

  suite('x-resizer-parent', function() {

    test('notify resizables from window', function() {
      var listeners = [
        ListenForResize(testEl.$.parent),
        ListenForResize(testEl.$.child1a),
        ListenForResize(testEl.$.child1b),
        ListenForResize(testEl.$.shadow1c.$.resizable),
        ListenForResize(testEl.$.shadow1d.$.resizable)
      ];

      window.dispatchEvent(new CustomEvent('resize', { bubbles: false }));
      expect(pendingNotifications).to.be.eql(0);

      RemoveListeners(listeners);
    });

    test('notify resizables from parent', function() {
      var listeners = [
        ListenForResize(testEl.$.parent),
        ListenForResize(testEl.$.child1a),
        ListenForResize(testEl.$.child1b),
        ListenForResize(testEl.$.shadow1c.$.resizable),
        ListenForResize(testEl.$.shadow1d.$.resizable)
      ];

      testEl.$.parent.notifyResize();
      expect(pendingNotifications).to.be.eql(0);
      RemoveListeners(listeners);
    });

    test('detach resizables then notify parent', function() {
      sinon.spy(testEl.$.child1a, 'notifyResize');
      sinon.spy(testEl.$.shadow1c.$.resizable, 'notifyResize');
      sinon.spy(testEl.$.child1b, 'notifyResize');
      sinon.spy(testEl.$.shadow1d.$.resizable, 'notifyResize');

      var firstElementToRemove = testEl.$.child1a;
      var firstElementParent = Polymer.dom(firstElementToRemove).parentNode;
      var secondElementToRemove = testEl.$.shadow1c.$.resizable;
      var secondElementParent = Polymer.dom(secondElementToRemove).parentNode;

      Polymer.dom(firstElementParent).removeChild(firstElementToRemove);
      Polymer.dom(secondElementParent).removeChild(secondElementToRemove);

      Polymer.dom.flush();

      testEl.$.parent.notifyResize();

      expect(testEl.$.child1a.notifyResize.callCount).to.be.equal(0);
      expect(testEl.$.shadow1c.$.resizable.notifyResize.callCount).to.be.equal(0);
      expect(testEl.$.child1b.notifyResize.callCount).to.be.equal(1);
      expect(testEl.$.shadow1d.$.resizable.notifyResize.callCount).to.be.equal(1);
    });

    test('detach parent then notify window', function(done) {
      var listeners = [
        ListenForResize(testEl.$.parent, false),
        ListenForResize(testEl.$.child1a, false),
        ListenForResize(testEl.$.child1b, false),
        ListenForResize(testEl.$.shadow1c.$.resizable, false),
        ListenForResize(testEl.$.shadow1d.$.resizable, false)
      ];

      var el = Polymer.dom(testEl.root).querySelector('#parent');

      el.parentNode.removeChild(el);

      setTimeout(function() {
        try {
          window.dispatchEvent(new CustomEvent('resize', { bubbles: false }));
          expect(pendingNotifications).to.be.eql(0);
          RemoveListeners(listeners);
          done();
        } catch (e) {
          done(e);
        }
      }, 0);
    });

  });

  suite('x-resizer-parent-filtered', function() {

    test('notify resizables from window', function() {
      var listeners = [
        ListenForResize(testEl.$.parentFiltered),
        ListenForResize(testEl.$.child2a),
        ListenForResize(testEl.$.child2b, false),
        ListenForResize(testEl.$.shadow2c.$.resizable, false),
        ListenForResize(testEl.$.shadow2d.$.resizable, false)
      ];

      testEl.$.parentFiltered.active = testEl.$.child2a;

      window.dispatchEvent(new CustomEvent('resize', { bubbles: false }));
      expect(pendingNotifications).to.be.eql(0);
      RemoveListeners(listeners);
    });

    test('notify resizables from parent', function() {
      var listeners = [
        ListenForResize(testEl.$.parentFiltered),
        ListenForResize(testEl.$.child2a),
        ListenForResize(testEl.$.child2b, false),
        ListenForResize(testEl.$.shadow2c.$.resizable, false),
        ListenForResize(testEl.$.shadow2d.$.resizable, false)
      ];

      testEl.$.parentFiltered.active = testEl.$.child2a;

      testEl.$.parentFiltered.notifyResize();
      expect(pendingNotifications).to.be.eql(0);
      RemoveListeners(listeners);
    });

    test('detach resizables then notify parent', function() {
      var listeners = [
        ListenForResize(testEl.$.parentFiltered),
        ListenForResize(testEl.$.child2a, false),
        ListenForResize(testEl.$.child2b, false),
        ListenForResize(testEl.$.shadow2c.$.resizable, false),
        ListenForResize(testEl.$.shadow2d.$.resizable)
      ];

      var el = Polymer.dom(testEl.root).querySelector('#child2a');
      el.parentNode.removeChild(el);
      el = Polymer.dom(testEl.root).querySelector('#shadow2c');
      el.parentNode.removeChild(el);

      testEl.$.parentFiltered.active = testEl.$.shadow2d.$.resizable;

      testEl.$.parentFiltered.notifyResize();
      expect(pendingNotifications).to.be.eql(0);
      RemoveListeners(listeners);
    });
  });
});
</script>

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