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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-autocomplete-dropdown</title>
<script src="/test/common-test-setup.js"></script>
<script src="/bower_components/webcomponentsjs/custom-elements-es5-adapter.js"></script>

<script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<link rel="import" href="gr-autocomplete-dropdown.html">

<script>void(0);</script>

<test-fixture id="basic">
  <template>
    <gr-autocomplete-dropdown></gr-autocomplete-dropdown>
  </template>
</test-fixture>

<script>
  suite('gr-autocomplete-dropdown', () => {
    let element;
    let sandbox;

    setup(() => {
      sandbox = sinon.sandbox.create();
      element = fixture('basic');
      element.open();
      element.suggestions = [
        {dataValue: 'test value 1', name: 'test name 1', text: 1, label: 'hi'},
        {dataValue: 'test value 2', name: 'test name 2', text: 2}];
      flushAsynchronousOperations();
    });

    teardown(() => {
      sandbox.restore();
      if (element.isOpen) element.close();
    });

    test('shows labels', () => {
      const els = element.$.suggestions.querySelectorAll('li');
      assert.equal(els[0].innerText.trim(), '1\nhi');
      assert.equal(els[1].innerText.trim(), '2');
    });

    test('escape key', done => {
      const closeSpy = sandbox.spy(element, 'close');
      MockInteractions.pressAndReleaseKeyOn(element, 27);
      flushAsynchronousOperations();
      assert.isTrue(closeSpy.called);
      done();
    });

    test('tab key', () => {
      const handleTabSpy = sandbox.spy(element, '_handleTab');
      const itemSelectedStub = sandbox.stub();
      element.addEventListener('item-selected', itemSelectedStub);
      MockInteractions.pressAndReleaseKeyOn(element, 9);
      assert.isTrue(handleTabSpy.called);
      assert.equal(element.$.cursor.index, 0);
      assert.isTrue(itemSelectedStub.called);
      assert.deepEqual(itemSelectedStub.lastCall.args[0].detail, {
        trigger: 'tab',
        selected: element.getCursorTarget(),
      });
    });

    test('enter key', () => {
      const handleEnterSpy = sandbox.spy(element, '_handleEnter');
      const itemSelectedStub = sandbox.stub();
      element.addEventListener('item-selected', itemSelectedStub);
      MockInteractions.pressAndReleaseKeyOn(element, 13);
      assert.isTrue(handleEnterSpy.called);
      assert.equal(element.$.cursor.index, 0);
      assert.deepEqual(itemSelectedStub.lastCall.args[0].detail, {
        trigger: 'enter',
        selected: element.getCursorTarget(),
      });
    });

    test('down key', () => {
      element.isHidden = true;
      const nextSpy = sandbox.spy(element.$.cursor, 'next');
      MockInteractions.pressAndReleaseKeyOn(element, 40);
      assert.isFalse(nextSpy.called);
      assert.equal(element.$.cursor.index, 0);
      element.isHidden = false;
      MockInteractions.pressAndReleaseKeyOn(element, 40);
      assert.isTrue(nextSpy.called);
      assert.equal(element.$.cursor.index, 1);
    });

    test('up key', () => {
      element.isHidden = true;
      const prevSpy = sandbox.spy(element.$.cursor, 'previous');
      MockInteractions.pressAndReleaseKeyOn(element, 38);
      assert.isFalse(prevSpy.called);
      assert.equal(element.$.cursor.index, 0);
      element.isHidden = false;
      element.$.cursor.setCursorAtIndex(1);
      assert.equal(element.$.cursor.index, 1);
      MockInteractions.pressAndReleaseKeyOn(element, 38);
      assert.isTrue(prevSpy.called);
      assert.equal(element.$.cursor.index, 0);
    });

    test('tapping selects item', () => {
      const itemSelectedStub = sandbox.stub();
      element.addEventListener('item-selected', itemSelectedStub);

      MockInteractions.tap(element.$.suggestions.querySelectorAll('li')[1]);
      flushAsynchronousOperations();
      assert.deepEqual(itemSelectedStub.lastCall.args[0].detail, {
        trigger: 'click',
        selected: element.$.suggestions.querySelectorAll('li')[1],
      });
    });

    test('tapping child still selects item', () => {
      const itemSelectedStub = sandbox.stub();
      element.addEventListener('item-selected', itemSelectedStub);

      MockInteractions.tap(element.$.suggestions.querySelectorAll('li')[0]
          .lastElementChild);
      flushAsynchronousOperations();
      assert.deepEqual(itemSelectedStub.lastCall.args[0].detail, {
        trigger: 'click',
        selected: element.$.suggestions.querySelectorAll('li')[0],
      });
    });

    test('updated suggestions resets cursor stops', () => {
      resetStopsSpy = sandbox.spy(element, '_resetCursorStops');
      element.suggestions = [];
      assert.isTrue(resetStopsSpy.called);
    });
  });

</script>