second commit

node_modules/flowbite-datepicker/test/events.js

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+describe('events', function () {
+  let clock;
+  let input;
+  let dp;
+  let picker;
+  let viewSwitch;
+
+  before(function () {
+    clock = sinon.useFakeTimers({now: new Date(2020, 1, 14)});
+    input = document.createElement('input');
+    testContainer.appendChild(input);
+    ({dp, picker} = createDP(input));
+    viewSwitch = getViewSwitch(picker);
+  });
+
+  after(function () {
+    dp.destroy();
+    testContainer.removeChild(input);
+    clock.restore();
+  });
+
+  describe('changeDate', function () {
+    it('is triggered when the selection is changed', function () {
+      const spyChangeDate = sinon.spy();
+      input.addEventListener('changeDate', spyChangeDate);
+
+      // by setDate()
+      dp.setDate('2/14/2020');
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      spyChangeDate.resetHistory();
+
+      // by update()
+      input.value = '4/22/2020';
+      dp.update();
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      spyChangeDate.resetHistory();
+
+      // by clicking on a day cell
+      getCells(picker)[12].click();
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      spyChangeDate.resetHistory();
+
+      // by hitting enter in edit mode
+      dp.enterEditMode();
+      input.value = '2/4/2020';
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      spyChangeDate.resetHistory();
+
+      // by hittin enter when the picker is hidden
+      dp.hide();
+      input.value = '3/20/2020';
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      input.removeEventListener('changeDate', spyChangeDate);
+      dp.setDate({clear: true});
+    });
+
+    it('is triggered when the selection is cleared', function () {
+      const spyChangeDate = sinon.spy();
+      dp.setDate('2/14/2020');
+      input.addEventListener('changeDate', spyChangeDate);
+
+      // by setDate()
+      dp.setDate({clear: true});
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      dp.setDate('2/14/2020');
+      spyChangeDate.resetHistory();
+
+      // by update()
+      input.value = '';
+      dp.update();
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      dp.setDate('2/14/2020');
+      spyChangeDate.resetHistory();
+
+      // by hitting enter in edit mode
+      dp.enterEditMode();
+      input.value = '';
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      dp.setDate('2/14/2020');
+      spyChangeDate.resetHistory();
+
+      // by hittin enter when the picker is hidden
+      dp.hide();
+      input.value = '';
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeDate.calledOnce, 'to be true');
+
+      input.removeEventListener('changeDate', spyChangeDate);
+    });
+
+    it('is not triggered when trying to update with the current value', function () {
+      const spyChangeDate = sinon.spy();
+      dp.setDate('2/14/2020');
+      input.addEventListener('changeDate', spyChangeDate);
+
+      // by setDate()
+      dp.setDate('2/14/2020');
+      expect(spyChangeDate.called, 'to be false');
+
+      // by update()
+      dp.update();
+      expect(spyChangeDate.called, 'to be false');
+
+      // by clicking on a day cell
+      getCells(picker)[19].click();
+      expect(spyChangeDate.called, 'to be false');
+
+      // by hitting enter in edit mode
+      dp.enterEditMode();
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeDate.called, 'to be false');
+
+      // by hittin enter when the picker is hidden
+      dp.hide();
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeDate.called, 'to be false');
+
+      input.removeEventListener('changeDate', spyChangeDate);
+      dp.setDate({clear: true});
+    });
+  });
+
+  describe('changeMonth', function () {
+    let spyChangeMonth;
+
+    beforeEach(function () {
+      dp.show();
+      spyChangeMonth = sinon.spy();
+      input.addEventListener('changeMonth', spyChangeMonth);
+    });
+
+    afterEach(function () {
+      input.removeEventListener('changeMonth', spyChangeMonth);
+      dp.hide();
+    });
+
+    it('is triggered when prevBtn or nextBtn is clicked on days view', function () {
+      const [prevBtn, nextBtn] = getParts(picker, ['.prev-btn', '.next-btn']);
+
+      prevBtn.click();
+      expect(spyChangeMonth.calledOnce, 'to be true');
+      nextBtn.click();
+      expect(spyChangeMonth.calledTwice, 'to be true');
+
+      spyChangeMonth.resetHistory();
+
+      // months view
+      viewSwitch.click();
+      prevBtn.click();
+      expect(spyChangeMonth.called, 'to be false');
+      nextBtn.click();
+      expect(spyChangeMonth.called, 'to be false');
+
+      // years view
+      viewSwitch.click();
+      prevBtn.click();
+      expect(spyChangeMonth.called, 'to be false');
+      nextBtn.click();
+      expect(spyChangeMonth.called, 'to be false');
+
+      // decades view
+      viewSwitch.click();
+      prevBtn.click();
+      expect(spyChangeMonth.called, 'to be false');
+      nextBtn.click();
+      expect(spyChangeMonth.called, 'to be false');
+    });
+
+    it('is triggered when ctrl + arrow lett/right is pressed on days view', function () {
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+      expect(spyChangeMonth.called, 'to be false');
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      expect(spyChangeMonth.called, 'to be false');
+
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft', ctrlKey: true});
+      expect(spyChangeMonth.calledOnce, 'to be true');
+      simulant.fire(input, 'keydown', {key: 'ArrowRight', ctrlKey: true});
+      expect(spyChangeMonth.calledTwice, 'to be true');
+
+      spyChangeMonth.resetHistory();
+
+      // months view
+      viewSwitch.click();
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft', ctrlKey: true});
+      expect(spyChangeMonth.called, 'to be false');
+      simulant.fire(input, 'keydown', {key: 'ArrowRight', ctrlKey: true});
+      expect(spyChangeMonth.called, 'to be false');
+
+      // years view
+      viewSwitch.click();
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft', ctrlKey: true});
+      expect(spyChangeMonth.called, 'to be false');
+      simulant.fire(input, 'keydown', {key: 'ArrowRight', ctrlKey: true});
+      expect(spyChangeMonth.called, 'to be false');
+
+      // decades view
+      viewSwitch.click();
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft', ctrlKey: true});
+      expect(spyChangeMonth.called, 'to be false');
+      simulant.fire(input, 'keydown', {key: 'ArrowRight', ctrlKey: true});
+      expect(spyChangeMonth.called, 'to be false');
+    });
+
+    it('is triggered when a previous or next month\'s day is clicked', function () {
+      getCells(picker)[19].click();
+      expect(spyChangeMonth.called, 'to be false');
+
+      getCells(picker)[2].click();
+      expect(spyChangeMonth.calledOnce, 'to be true');
+
+      getCells(picker)[40].click();
+      expect(spyChangeMonth.calledTwice, 'to be true');
+
+      dp.setDate({clear: true});
+    });
+
+    it('is triggered when view date is moved to a previous or next month\'s day by arrow keys', function () {
+      // move to 2/1/2020
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      simulant.fire(input, 'keydown', {key: 'ArrowUp'});
+      simulant.fire(input, 'keydown', {key: 'ArrowUp'});
+
+      // go to 1/31
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+      expect(spyChangeMonth.calledOnce, 'to be true');
+
+      // go back to 2/1
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      expect(spyChangeMonth.calledTwice, 'to be true');
+
+      spyChangeMonth.resetHistory();
+
+      // move to 2/3/2020
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+
+      // go to 1/27
+      simulant.fire(input, 'keydown', {key: 'ArrowUp'});
+      expect(spyChangeMonth.calledOnce, 'to be true');
+
+      // go back to 2/3
+      simulant.fire(input, 'keydown', {key: 'ArrowDown'});
+      expect(spyChangeMonth.calledTwice, 'to be true');
+    });
+
+    it('is triggered when a different month is seleced on months view', function () {
+      viewSwitch.click();
+
+      getCells(picker)[1].click();
+      expect(spyChangeMonth.called, 'to be false');
+
+      viewSwitch.click();
+      getCells(picker)[2].click();
+      expect(spyChangeMonth.calledOnce, 'to be true');
+    });
+
+    it('is triggered when moving month by arrow keys on months view', function () {
+      viewSwitch.click();
+
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      expect(spyChangeMonth.callCount, 'to be', 1);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+      expect(spyChangeMonth.callCount, 'to be', 2);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowDown'});
+      expect(spyChangeMonth.callCount, 'to be', 3);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowUp'});
+      expect(spyChangeMonth.callCount, 'to be', 4);
+    });
+
+    it('is triggered when the selection is updated to a different month by API calls', function () {
+      dp.setDate('2/22/2020');
+      expect(spyChangeMonth.called, 'to be false');
+
+      dp.setDate('4/22/2020');
+      expect(spyChangeMonth.calledOnce, 'to be true');
+
+      input.value = '3/14/2020';
+      dp.update();
+      expect(spyChangeMonth.calledTwice, 'to be true');
+    });
+
+    it('is triggered when the selection is cleard from a date of a different month from default view date', function () {
+      dp.setDate('2/22/2020');
+      spyChangeMonth.resetHistory();
+      dp.setDate({clear: true});
+      expect(spyChangeMonth.called, 'to be false');
+
+      dp.setDate('4/22/2020');
+      spyChangeMonth.resetHistory();
+      input.value = '';
+      dp.update();
+      expect(spyChangeMonth.calledOnce, 'to be true');
+
+      dp.setDate('4/22/2020');
+      spyChangeMonth.resetHistory();
+      dp.enterEditMode();
+      input.value = '';
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeMonth.calledOnce, 'to be true');
+    });
+
+    it('is triggered before changeDate when triggered on change of the selection', function () {
+      const spyChangeDate = sinon.spy();
+      input.addEventListener('changeDate', spyChangeDate);
+
+      dp.setDate('4/22/2020');
+      expect(spyChangeDate.called, 'to be true');
+      expect(spyChangeMonth.called, 'to be true');
+      expect(spyChangeMonth.calledBefore(spyChangeDate), 'to be true');
+
+      input.removeEventListener('changeDate', spyChangeDate);
+      dp.setDate({clear: true});
+    });
+
+    it('is triggered when view is reset from different month from default view date on hide', function () {
+      picker.querySelector('.next-btn').click();
+      spyChangeMonth.resetHistory();
+
+      dp.hide();
+      expect(spyChangeMonth.calledOnce, 'to be true');
+    });
+
+    it('is not triggered when view date is changed to the same month of different year', function () {
+      viewSwitch.click();
+      viewSwitch.click();
+      // years view
+      getCells(picker)[3].click();
+      expect(spyChangeMonth.called, 'to be false');
+      // months view
+      getCells(picker)[1].click();
+      expect(spyChangeMonth.called, 'to be false');
+
+      viewSwitch.click();
+      viewSwitch.click();
+      // years view
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeMonth.called, 'to be false');
+      // months view
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeMonth.called, 'to be false');
+    });
+  });
+
+  describe('changeYear', function () {
+    let spyChangeYear;
+
+    beforeEach(function () {
+      dp.show();
+      spyChangeYear = sinon.spy();
+      input.addEventListener('changeYear', spyChangeYear);
+    });
+
+    afterEach(function () {
+      input.removeEventListener('changeYear', spyChangeYear);
+      dp.hide();
+    });
+
+    it('is triggered when prevBtn on January on days view or nextBtn on December is clicked', function () {
+      const [prevBtn, nextBtn] = getParts(picker, ['.prev-btn', '.next-btn']);
+
+      // move to 1/15
+      prevBtn.click();
+      spyChangeYear.resetHistory();
+
+      prevBtn.click();
+      expect(spyChangeYear.calledOnce, 'to be true');
+      nextBtn.click();
+      expect(spyChangeYear.calledTwice, 'to be true');
+    });
+
+    it('is triggered when ctrl + arrow lett is pressed on January on days view or right on December', function () {
+      // move to 1/15
+      picker.querySelector('.prev-btn').click();
+      spyChangeYear.resetHistory();
+
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+      expect(spyChangeYear.called, 'to be false');
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      expect(spyChangeYear.called, 'to be false');
+
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft', ctrlKey: true});
+      expect(spyChangeYear.calledOnce, 'to be true');
+      simulant.fire(input, 'keydown', {key: 'ArrowRight', ctrlKey: true});
+      expect(spyChangeYear.calledTwice, 'to be true');
+    });
+
+    it('is triggered when a previous month\'s day on January or a next month\'s on December is clicked', function () {
+      // move to 1/15
+      picker.querySelector('.prev-btn').click();
+      spyChangeYear.resetHistory();
+
+      getCells(picker)[19].click();
+      expect(spyChangeYear.called, 'to be false');
+
+      getCells(picker)[2].click();
+      expect(spyChangeYear.calledOnce, 'to be true');
+
+      getCells(picker)[40].click();
+      expect(spyChangeYear.calledTwice, 'to be true');
+
+      dp.setDate({clear: true});
+    });
+
+    it('is triggered when prevBtn or nextBtn is clicked on months view', function () {
+      const [prevBtn, nextBtn] = getParts(picker, ['.prev-btn', '.next-btn']);
+      viewSwitch.click();
+
+      prevBtn.click();
+      expect(spyChangeYear.calledOnce, 'to be true');
+      nextBtn.click();
+      expect(spyChangeYear.calledTwice, 'to be true');
+    });
+
+    it('is triggered when view month is moved to a previous or next year\'s by arrow keys', function () {
+      viewSwitch.click();
+      // move to january
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+
+      // go to last year's December
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+      expect(spyChangeYear.calledOnce, 'to be true');
+
+      // go back to January
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      expect(spyChangeYear.calledTwice, 'to be true');
+
+      spyChangeYear.resetHistory();
+
+      // go to last year's September
+      simulant.fire(input, 'keydown', {key: 'ArrowUp'});
+      expect(spyChangeYear.calledOnce, 'to be true');
+
+      // go back to January
+      simulant.fire(input, 'keydown', {key: 'ArrowDown'});
+      expect(spyChangeYear.calledTwice, 'to be true');
+    });
+
+    it('is triggered when a different year/decade is seleced on years/decades view', function () {
+      viewSwitch.click();
+      viewSwitch.click();
+      viewSwitch.click();
+
+      // decades view
+      getCells(picker)[0].click();
+      expect(spyChangeYear.calledOnce, 'to be true');
+
+      // years view
+      getCells(picker)[2].click();
+      expect(spyChangeYear.calledTwice, 'to be true');
+
+      viewSwitch.click();
+      viewSwitch.click();
+      spyChangeYear.resetHistory();
+
+      // decades view
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeYear.calledOnce, 'to be true');
+
+      // years view
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeYear.calledTwice, 'to be true');
+    });
+
+    it('is triggered when moving year/decade by arrow keys on years/decades view', function () {
+      viewSwitch.click();
+      viewSwitch.click();
+
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      expect(spyChangeYear.callCount, 'to be', 1);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+      expect(spyChangeYear.callCount, 'to be', 2);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowDown'});
+      expect(spyChangeYear.callCount, 'to be', 3);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowUp'});
+      expect(spyChangeYear.callCount, 'to be', 4);
+
+      viewSwitch.click();
+      spyChangeYear.resetHistory();
+
+      simulant.fire(input, 'keydown', {key: 'ArrowRight'});
+      expect(spyChangeYear.callCount, 'to be', 1);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowLeft'});
+      expect(spyChangeYear.callCount, 'to be', 2);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowDown'});
+      expect(spyChangeYear.callCount, 'to be', 3);
+
+      simulant.fire(input, 'keydown', {key: 'ArrowUp'});
+      expect(spyChangeYear.callCount, 'to be', 4);
+    });
+
+    it('is triggered when the selection is updated to a different year by API calls', function () {
+      dp.setDate('2/22/2020');
+      expect(spyChangeYear.called, 'to be false');
+
+      dp.setDate('4/22/2022');
+      expect(spyChangeYear.calledOnce, 'to be true');
+
+      input.value = '3/14/2018';
+      dp.update();
+      expect(spyChangeYear.calledTwice, 'to be true');
+    });
+
+    it('is triggered when the selection is cleard from a date of a different year from default view date', function () {
+      dp.setDate('2/22/2020');
+      spyChangeYear.resetHistory();
+      dp.setDate({clear: true});
+      expect(spyChangeYear.called, 'to be false');
+
+      dp.setDate('4/22/2022');
+      spyChangeYear.resetHistory();
+      input.value = '';
+      dp.update();
+      expect(spyChangeYear.calledOnce, 'to be true');
+
+      dp.setDate('4/22/2022');
+      spyChangeYear.resetHistory();
+      dp.enterEditMode();
+      input.value = '';
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeYear.calledOnce, 'to be true');
+    });
+
+    it('is triggered before changeDate when triggered on change of the selection', function () {
+      const spyChangeDate = sinon.spy();
+      input.addEventListener('changeDate', spyChangeDate);
+
+      dp.setDate('4/22/2022');
+      expect(spyChangeDate.called, 'to be true');
+      expect(spyChangeYear.called, 'to be true');
+      expect(spyChangeYear.calledBefore(spyChangeDate), 'to be true');
+
+      input.removeEventListener('changeDate', spyChangeDate);
+      dp.setDate({clear: true});
+    });
+
+    it('is triggered when view is reset from different year from default view date on hide', function () {
+      picker.querySelector('.prev-btn').click();
+      picker.querySelector('.prev-btn').click();
+      spyChangeYear.resetHistory();
+
+      dp.hide();
+      expect(spyChangeYear.calledOnce, 'to be true');
+    });
+  });
+
+  describe('changeView', function () {
+    let spyChangeView;
+
+    beforeEach(function () {
+      dp.show();
+      spyChangeView = sinon.spy();
+      input.addEventListener('changeView', spyChangeView);
+    });
+
+    afterEach(function () {
+      input.removeEventListener('changeView', spyChangeView);
+      dp.hide();
+    });
+
+    it('is triggered when view is changed by clicking view switch', function () {
+      viewSwitch.click();
+      expect(spyChangeView.calledOnce, 'to be true');
+
+      // on months view
+      viewSwitch.click();
+      expect(spyChangeView.calledTwice, 'to be true');
+
+      // on years view
+      viewSwitch.click();
+      expect(spyChangeView.calledThrice, 'to be true');
+
+      // on decades view
+      viewSwitch.click();
+      expect(spyChangeView.calledThrice, 'to be true');
+    });
+
+    it('is triggered when view is changed by pressing ctrl + arrow up', function () {
+      simulant.fire(input, 'keydown', {key: 'ArrowUp'});
+      expect(spyChangeView.called, 'to be false');
+
+      simulant.fire(input, 'keydown', {key: 'ArrowUp', ctrlKey: true});
+      expect(spyChangeView.calledOnce, 'to be true');
+
+      // on months view
+      simulant.fire(input, 'keydown', {key: 'ArrowUp', ctrlKey: true});
+      expect(spyChangeView.calledTwice, 'to be true');
+
+      // on years view
+      simulant.fire(input, 'keydown', {key: 'ArrowUp', ctrlKey: true});
+      expect(spyChangeView.calledThrice, 'to be true');
+
+      // on decades view
+      simulant.fire(input, 'keydown', {key: 'ArrowUp', ctrlKey: true});
+      expect(spyChangeView.calledThrice, 'to be true');
+    });
+
+    it('is triggered when view is changed by seleting a decade/year/month on decades/years/months view', function () {
+      viewSwitch.click();
+      viewSwitch.click();
+      viewSwitch.click();
+      spyChangeView.resetHistory();
+
+      // on decades view
+      getCells(picker)[2].click();
+      expect(spyChangeView.calledOnce, 'to be true');
+
+      // on years view
+      getCells(picker)[2].click();
+      expect(spyChangeView.calledTwice, 'to be true');
+
+      // on months view
+      getCells(picker)[2].click();
+      expect(spyChangeView.calledThrice, 'to be true');
+
+      // on days view
+      getCells(picker)[12].click();
+      expect(spyChangeView.calledThrice, 'to be true');
+
+      viewSwitch.click();
+      viewSwitch.click();
+      viewSwitch.click();
+      spyChangeView.resetHistory();
+
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeView.calledOnce, 'to be true');
+
+      // on decades view
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeView.calledTwice, 'to be true');
+
+      // on years view
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeView.calledThrice, 'to be true');
+
+      // on months view
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeView.calledThrice, 'to be true');
+
+      // on days view
+      simulant.fire(input, 'keydown', {key: 'Enter'});
+      expect(spyChangeView.calledThrice, 'to be true');
+    });
+
+    it('is triggered when view is reset on hide', function () {
+      viewSwitch.click();
+      spyChangeView.resetHistory();
+
+      dp.hide();
+      expect(spyChangeView.calledOnce, 'to be true');
+    });
+  });
+
+  describe('show', function () {
+    let spyShow;
+
+    beforeEach(function () {
+      dp.show();
+      spyShow = sinon.spy();
+      input.addEventListener('show', spyShow);
+    });
+
+    afterEach(function () {
+      input.removeEventListener('show', spyShow);
+      dp.hide();
+    });
+
+    it('is triggered when the picker becomes visible', function () {
+      // not triggered if already shown
+      dp.show();
+      expect(spyShow.called, 'to be false');
+
+      dp.hide();
+      // by API call
+      dp.show();
+      expect(spyShow.calledOnce, 'to be true');
+
+      dp.hide();
+      input.blur();
+      // by getting focus
+      input.focus();
+      expect(spyShow.calledTwice, 'to be true');
+
+      // by toggling visibility by Esc key
+      simulant.fire(input, 'keydown', {key: 'Escape'});
+      expect(spyShow.calledTwice, 'to be true');
+      simulant.fire(input, 'keydown', {key: 'Escape'});
+      expect(spyShow.calledThrice, 'to be true');
+    });
+  });
+
+  describe('hide', function () {
+    let spyHide;
+
+    beforeEach(function () {
+      dp.show();
+      spyHide = sinon.spy();
+      input.addEventListener('hide', spyHide);
+    });
+
+    afterEach(function () {
+      input.removeEventListener('hide', spyHide);
+      dp.hide();
+    });
+
+    it('is triggered when the picker becomes hidden', function () {
+      // by API call
+      dp.hide();
+      expect(spyHide.callCount, 'to be', 1);
+
+      dp.show();
+      // by clicking outside
+      simulant.fire(testContainer, 'mousedown');
+      expect(spyHide.callCount, 'to be', 2);
+
+      dp.show();
+      // by pressing tab key
+      simulant.fire(input, 'keydown', {key: 'Tab'});
+      expect(spyHide.callCount, 'to be', 3);
+
+      dp.show();
+      // by toggling visibility by Esc key
+      simulant.fire(input, 'keydown', {key: 'Escape'});
+      expect(spyHide.callCount, 'to be', 4);
+    });
+  });
+
+  describe('event object', function () {
+    const stubChangeDate = (ev) => {
+      eventObj = ev;
+    };
+    let eventObj;
+
+    before(function () {
+      input.addEventListener('changeDate', stubChangeDate);
+      dp.setDate('2/14/2020');
+    });
+
+    after(function () {
+      input.removeEventListener('changeDate', stubChangeDate);
+    });
+
+    it('is a custom event object', function () {
+      expect(eventObj, 'to be a', CustomEvent);
+    });
+
+    it('has the result of getDate() in detail.date', function () {
+      expect(eventObj.detail.date, 'to equal', dp.getDate());
+    });
+
+    it('has a date object of view date in detail.viewDate', function () {
+      expect(eventObj.detail.viewDate, 'to be a date');
+      expect(eventObj.detail.viewDate.getTime(), 'to be', dateValue(2020, 1, 14));
+    });
+
+    it('has view mode of current view in detail.viewId', function () {
+      expect(eventObj.detail.viewId, 'to be', 0);
+    });
+
+    it('has the Datepicker instance in detail.datepicker', function () {
+      expect(eventObj.detail.datepicker, 'to be', dp);
+    });
+  });
+});