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<title>tooltip-behavior</title>

<script src="../../bower_components/webcomponentsjs/webcomponents.min.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-tooltip-behavior.html">

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

<test-fixture id="basic">
  <template>
    <tooltip-behavior-element></tooltip-behavior-element>
  </template>
</test-fixture>

<script>
  suite('gr-tooltip-behavior tests', () => {
    let element;
    let sandbox;

    function makeTooltip(tooltipRect, parentRect) {
      return {
        getBoundingClientRect() { return tooltipRect; },
        updateStyles: sinon.stub(),
        style: {left: 0, top: 0},
        parentElement: {
          getBoundingClientRect() { return parentRect; },
        },
      };
    }

    suiteSetup(() => {
      // Define a Polymer element that uses this behavior.
      Polymer({
        is: 'tooltip-behavior-element',
        _legacyUndefinedCheck: true,
        behaviors: [Gerrit.TooltipBehavior],
      });
    });

    setup(() => {
      sandbox = sinon.sandbox.create();
      element = fixture('basic');
    });

    teardown(() => {
      sandbox.restore();
    });

    test('normal position', () => {
      sandbox.stub(element, 'getBoundingClientRect', () => {
        return {top: 100, left: 100, width: 200};
      });
      const tooltip = makeTooltip(
          {height: 30, width: 50},
          {top: 0, left: 0, width: 1000});

      element._positionTooltip(tooltip);
      assert.isFalse(tooltip.updateStyles.called);
      assert.equal(tooltip.style.left, '175px');
      assert.equal(tooltip.style.top, '100px');
    });

    test('left side position', () => {
      sandbox.stub(element, 'getBoundingClientRect', () => {
        return {top: 100, left: 10, width: 50};
      });
      const tooltip = makeTooltip(
          {height: 30, width: 120},
          {top: 0, left: 0, width: 1000});

      element._positionTooltip(tooltip);
      assert.isTrue(tooltip.updateStyles.called);
      const offset = tooltip.updateStyles
          .lastCall.args[0]['--gr-tooltip-arrow-center-offset'];
      assert.isBelow(parseFloat(offset.replace(/px$/, '')), 0);
      assert.equal(tooltip.style.left, '0px');
      assert.equal(tooltip.style.top, '100px');
    });

    test('right side position', () => {
      sandbox.stub(element, 'getBoundingClientRect', () => {
        return {top: 100, left: 950, width: 50};
      });
      const tooltip = makeTooltip(
          {height: 30, width: 120},
          {top: 0, left: 0, width: 1000});

      element._positionTooltip(tooltip);
      assert.isTrue(tooltip.updateStyles.called);
      const offset = tooltip.updateStyles
          .lastCall.args[0]['--gr-tooltip-arrow-center-offset'];
      assert.isAbove(parseFloat(offset.replace(/px$/, '')), 0);
      assert.equal(tooltip.style.left, '915px');
      assert.equal(tooltip.style.top, '100px');
    });

    test('position to bottom', () => {
      sandbox.stub(element, 'getBoundingClientRect', () => {
        return {top: 100, left: 950, width: 50, height: 50};
      });
      const tooltip = makeTooltip(
          {height: 30, width: 120},
          {top: 0, left: 0, width: 1000});

      element.positionBelow = true;
      element._positionTooltip(tooltip);
      assert.isTrue(tooltip.updateStyles.called);
      const offset = tooltip.updateStyles
          .lastCall.args[0]['--gr-tooltip-arrow-center-offset'];
      assert.isAbove(parseFloat(offset.replace(/px$/, '')), 0);
      assert.equal(tooltip.style.left, '915px');
      assert.equal(tooltip.style.top, '157.2px');
    });

    test('hides tooltip when detached', () => {
      sandbox.stub(element, '_handleHideTooltip');
      element.remove();
      flushAsynchronousOperations();
      assert.isTrue(element._handleHideTooltip.called);
    });

    test('sets up listeners when has-tooltip is changed', () => {
      const addListenerStub = sandbox.stub(element, 'addEventListener');
      element.hasTooltip = true;
      assert.isTrue(addListenerStub.called);
    });
  });
</script>