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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-diff-comment</title>

<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<script src="../../../bower_components/page/page.js"></script>
<script src="../../../scripts/util.js"></script>

<link rel="import" href="gr-diff-comment.html">

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

<test-fixture id="basic">
  <template>
    <gr-diff-comment></gr-diff-comment>
  </template>
</test-fixture>

<test-fixture id="draft">
  <template>
    <gr-diff-comment draft="true"></gr-diff-comment>
  </template>
</test-fixture>

<script>

  function isVisible(el) {
    assert.ok(el);
    return getComputedStyle(el).getPropertyValue('display') !== 'none';
  }

  suite('gr-diff-comment tests', () => {
    let element;
    let sandbox;
    setup(() => {
      stub('gr-rest-api-interface', {
        getAccount() { return Promise.resolve(null); },
      });
      element = fixture('basic');
      element.comment = {
        author: {
          name: 'Mr. Peanutbutter',
          email: 'tenn1sballchaser@aol.com',
        },
        id: 'baf0414d_60047215',
        line: 5,
        message: 'is this a crossover episode!?',
        updated: '2015-12-08 19:48:33.843000000',
      };
      sandbox = sinon.sandbox.create();
    });

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

    test('collapsible comments', () => {
      // When a comment (not draft) is loaded, it should be collapsed
      assert.isTrue(element.collapsed);
      assert.isFalse(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is not visible');
      assert.isFalse(isVisible(element.$$('.actions')),
          'actions are not visible');
      assert.isFalse(isVisible(element.$$('gr-textarea')),
          'textarea is not visible');

      // The header middle content is only visible when comments are collapsed.
      // It shows the message in a condensed way, and limits to a single line.
      assert.isTrue(isVisible(element.$$('.collapsedContent')),
          'header middle content is visible');

      // When the header row is clicked, the comment should expand
      MockInteractions.tap(element.$.header);
      assert.isFalse(element.collapsed);
      assert.isTrue(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is visible');
      assert.isTrue(isVisible(element.$$('.actions')),
          'actions are visible');
      assert.isFalse(isVisible(element.$$('gr-textarea')),
          'textarea is not visible');
      assert.isFalse(isVisible(element.$$('.collapsedContent')),
          'header middle content is not visible');
    });

    test('clicking on date link does not trigger nav', () => {
      const showStub = sinon.stub(page, 'show');
      const dateEl = element.$$('.date');
      assert.ok(dateEl);
      MockInteractions.tap(dateEl);
      const dest = window.location.pathname + '#5';
      assert(showStub.lastCall.calledWithExactly(dest, null, false),
          'Should navigate to ' + dest + ' without triggering nav');
      showStub.restore();
    });

    test('message is not retrieved from storage when other edits', done => {
      const storageStub = sandbox.stub(element.$.storage, 'getDraftComment');
      const loadSpy = sandbox.spy(element, '_loadLocalDraft');

      element.changeNum = 1;
      element.patchNum = 1;
      element.comment = {
        author: {
          name: 'Mr. Peanutbutter',
          email: 'tenn1sballchaser@aol.com',
        },
        line: 5,
        __otherEditing: true,
      };
      flush(() => {
        assert.isTrue(loadSpy.called);
        assert.isFalse(storageStub.called);
        done();
      });
    });

    test('message is retrieved from storage when no other edits', done => {
      const storageStub = sandbox.stub(element.$.storage, 'getDraftComment');
      const loadSpy = sandbox.spy(element, '_loadLocalDraft');

      element.changeNum = 1;
      element.patchNum = 1;
      element.comment = {
        author: {
          name: 'Mr. Peanutbutter',
          email: 'tenn1sballchaser@aol.com',
        },
        line: 5,
      };
      flush(() => {
        assert.isTrue(loadSpy.called);
        assert.isTrue(storageStub.called);
        done();
      });
    });

    test('_getPatchNum', () => {
      element.side = 'PARENT';
      element.patchNum = 1;
      assert.equal(element._getPatchNum(), 'PARENT');
      element.side = 'REVISION';
      assert.equal(element._getPatchNum(), 1);
    });

    test('comment expand and collapse', () => {
      element.collapsed = true;
      assert.isFalse(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is not visible');
      assert.isFalse(isVisible(element.$$('.actions')),
          'actions are not visible');
      assert.isFalse(isVisible(element.$$('gr-textarea')),
          'textarea is not visible');
      assert.isTrue(isVisible(element.$$('.collapsedContent')),
          'header middle content is visible');

      element.collapsed = false;
      assert.isFalse(element.collapsed);
      assert.isTrue(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is visible');
      assert.isTrue(isVisible(element.$$('.actions')),
          'actions are visible');
      assert.isFalse(isVisible(element.$$('gr-textarea')),
          'textarea is not visible');
      assert.isFalse(isVisible(element.$$('.collapsedContent')),
          'header middle content is is not visible');
    });

    suite('while editing', () => {
      setup(() => {
        element.editing = true;
        element._messageText = 'test';
        sandbox.stub(element, '_handleCancel');
        sandbox.stub(element, '_handleSave');
        flushAsynchronousOperations();
      });

      suite('when text is empty', () => {
        setup(() => {
          element._messageText = '';
        });

        test('esc closes comment when text is empty', () => {
          MockInteractions.pressAndReleaseKeyOn(
              element.$.editTextarea, 27); // esc
          assert.isTrue(element._handleCancel.called);
        });

        test('ctrl+enter does not save', () => {
          MockInteractions.pressAndReleaseKeyOn(
              element.$.editTextarea, 13, 'ctrl'); // ctrl + enter
          assert.isFalse(element._handleSave.called);
        });

        test('meta+enter does not save', () => {
          MockInteractions.pressAndReleaseKeyOn(
              element.$.editTextarea, 13, 'meta'); // meta + enter
          assert.isFalse(element._handleSave.called);
        });

        test('ctrl+s does not save', () => {
          MockInteractions.pressAndReleaseKeyOn(
              element.$.editTextarea, 83, 'ctrl'); // ctrl + s
          assert.isFalse(element._handleSave.called);
        });
      });

      test('esc does not close comment that has content', () => {
        MockInteractions.pressAndReleaseKeyOn(
            element.$.editTextarea, 27); // esc
        assert.isFalse(element._handleCancel.called);
      });

      test('ctrl+enter saves', () => {
        MockInteractions.pressAndReleaseKeyOn(
            element.$.editTextarea, 13, 'ctrl'); // ctrl + enter
        assert.isTrue(element._handleSave.called);
      });

      test('meta+enter saves', () => {
        MockInteractions.pressAndReleaseKeyOn(
            element.$.editTextarea, 13, 'meta'); // meta + enter
        assert.isTrue(element._handleSave.called);
      });

      test('ctrl+s saves', () => {
        MockInteractions.pressAndReleaseKeyOn(
            element.$.editTextarea, 83, 'ctrl'); // ctrl + s
        assert.isTrue(element._handleSave.called);
      });
    });
    test('delete comment button for non-admins is hidden', () => {
      element._isAdmin = false;
      assert.isFalse(element.$$('.action.delete')
          .classList.contains('showDeleteButtons'));
    });

    test('delete comment button for admins with draft is hidden', () => {
      element._isAdmin = false;
      element.draft = true;
      assert.isFalse(element.$$('.action.delete')
          .classList.contains('showDeleteButtons'));
    });

    test('delete comment', done => {
      sandbox.stub(
          element.$.restAPI, 'deleteComment').returns(Promise.resolve({}));
      sandbox.spy(element.$.confirmDeleteOverlay, 'open');
      element.changeNum = 42;
      element.patchNum = 0xDEADBEEF;
      element._isAdmin = true;
      assert.isTrue(element.$$('.action.delete')
          .classList.contains('showDeleteButtons'));
      MockInteractions.tap(element.$$('.action.delete'));
      flush(() => {
        element.$.confirmDeleteOverlay.open.lastCall.returnValue.then(() => {
          element.$.confirmDeleteComment.message = 'removal reason';
          element._handleConfirmDeleteComment();
          assert.isTrue(element.$.restAPI.deleteComment.calledWith(
              42, 0xDEADBEEF, 'baf0414d_60047215', 'removal reason'));
          done();
        });
      });
    });
  });

  suite('gr-diff-comment draft tests', () => {
    let element;
    let sandbox;

    setup(() => {
      stub('gr-rest-api-interface', {
        getAccount() { return Promise.resolve(null); },
        saveDiffDraft() {
          return Promise.resolve({
            ok: true,
            text() {
              return Promise.resolve(
                  ')]}\'\n{' +
                  '"id": "baf0414d_40572e03",' +
                  '"path": "/path/to/file",' +
                  '"line": 5,' +
                  '"updated": "2015-12-08 21:52:36.177000000",' +
                  '"message": "saved!"' +
                '}'
              );
            },
          });
        },
        removeChangeReviewer() {
          return Promise.resolve({ok: true});
        },
      });
      stub('gr-storage', {
        getDraftComment() { return null; },
      });
      element = fixture('draft');
      element.changeNum = 42;
      element.patchNum = 1;
      element.editing = false;
      element.comment = {
        __commentSide: 'right',
        __draft: true,
        __draftID: 'temp_draft_id',
        path: '/path/to/file',
        line: 5,
      };
      element.commentSide = 'right';
      sandbox = sinon.sandbox.create();
    });

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

    test('button visibility states', () => {
      element.showActions = false;
      assert.isTrue(element.$$('.humanActions').hasAttribute('hidden'));
      assert.isTrue(element.$$('.robotActions').hasAttribute('hidden'));

      element.showActions = true;
      assert.isFalse(element.$$('.humanActions').hasAttribute('hidden'));
      assert.isTrue(element.$$('.robotActions').hasAttribute('hidden'));

      element.draft = true;
      assert.isTrue(isVisible(element.$$('.edit')), 'edit is visible');
      assert.isTrue(isVisible(element.$$('.discard')), 'discard is visible');
      assert.isFalse(isVisible(element.$$('.save')), 'save is not visible');
      assert.isFalse(isVisible(element.$$('.cancel')), 'cancel is not visible');
      assert.isFalse(isVisible(element.$$('.resolve')),
          'resolve is not visible');
      assert.isFalse(element.$$('.humanActions').hasAttribute('hidden'));
      assert.isTrue(element.$$('.robotActions').hasAttribute('hidden'));

      element.editing = true;
      assert.isFalse(isVisible(element.$$('.edit')), 'edit is not visible');
      assert.isFalse(isVisible(element.$$('.discard')), 'discard not visible');
      assert.isTrue(isVisible(element.$$('.save')), 'save is visible');
      assert.isTrue(isVisible(element.$$('.cancel')), 'cancel is visible');
      assert.isTrue(isVisible(element.$$('.resolve')), 'resolve is visible');
      assert.isFalse(element.$$('.humanActions').hasAttribute('hidden'));
      assert.isTrue(element.$$('.robotActions').hasAttribute('hidden'));

      element.draft = false;
      element.editing = false;
      assert.isFalse(isVisible(element.$$('.edit')), 'edit is not visible');
      assert.isFalse(isVisible(element.$$('.discard')),
          'discard is not visible');
      assert.isFalse(isVisible(element.$$('.save')), 'save is not visible');
      assert.isFalse(isVisible(element.$$('.cancel')), 'cancel is not visible');
      assert.isFalse(element.$$('.humanActions').hasAttribute('hidden'));
      assert.isTrue(element.$$('.robotActions').hasAttribute('hidden'));

      element.comment.id = 'foo';
      element.draft = true;
      element.editing = true;
      assert.isTrue(isVisible(element.$$('.cancel')), 'cancel is visible');
      assert.isFalse(element.$$('.humanActions').hasAttribute('hidden'));
      assert.isTrue(element.$$('.robotActions').hasAttribute('hidden'));

      element.isRobotComment = true;
      element.draft = true;
      assert.isTrue(element.$$('.humanActions').hasAttribute('hidden'));
      assert.isFalse(element.$$('.robotActions').hasAttribute('hidden'));

      // It is not expected to see Robot comment drafts, but if they appear,
      // they will behave the same as non-drafts.
      element.draft = false;
      assert.isTrue(element.$$('.humanActions').hasAttribute('hidden'));
      assert.isFalse(element.$$('.robotActions').hasAttribute('hidden'));
    });

    test('collapsible drafts', () => {
      assert.isTrue(element.collapsed);
      assert.isFalse(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is not visible');
      assert.isFalse(isVisible(element.$$('.actions')),
          'actions are not visible');
      assert.isFalse(isVisible(element.$$('gr-textarea')),
          'textarea is not visible');
      assert.isTrue(isVisible(element.$$('.collapsedContent')),
          'header middle content is visible');

      MockInteractions.tap(element.$.header);
      assert.isFalse(element.collapsed);
      assert.isTrue(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is visible');
      assert.isTrue(isVisible(element.$$('.actions')),
          'actions are visible');
      assert.isFalse(isVisible(element.$$('gr-textarea')),
          'textarea is not visible');
      assert.isFalse(isVisible(element.$$('.collapsedContent')),
          'header middle content is is not visible');

      // When the edit button is pressed, should still see the actions
      // and also textarea
      MockInteractions.tap(element.$$('.edit'));
      assert.isFalse(element.collapsed);
      assert.isFalse(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is not visible');
      assert.isTrue(isVisible(element.$$('.actions')),
          'actions are visible');
      assert.isTrue(isVisible(element.$$('gr-textarea')),
          'textarea is visible');
      assert.isFalse(isVisible(element.$$('.collapsedContent')),
          'header middle content is not visible');

      // When toggle again, everything should be hidden except for textarea
      // and header middle content should be visible
      MockInteractions.tap(element.$.header);
      assert.isTrue(element.collapsed);
      assert.isFalse(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is not visible');
      assert.isFalse(isVisible(element.$$('.actions')),
          'actions are not visible');
      assert.isFalse(isVisible(element.$$('gr-textarea')),
          'textarea is not visible');
      assert.isTrue(isVisible(element.$$('.collapsedContent')),
          'header middle content is visible');

      // When toggle again, textarea should remain open in the state it was
      // before
      MockInteractions.tap(element.$.header);
      assert.isFalse(isVisible(element.$$('gr-formatted-text')),
          'gr-formatted-text is not visible');
      assert.isTrue(isVisible(element.$$('.actions')),
          'actions are visible');
      assert.isTrue(isVisible(element.$$('gr-textarea')),
          'textarea is visible');
      assert.isFalse(isVisible(element.$$('.collapsedContent')),
          'header middle content is not visible');
    });

    test('draft creation/cancelation', done => {
      assert.isFalse(element.editing);
      MockInteractions.tap(element.$$('.edit'));
      assert.isTrue(element.editing);

      element._messageText = '';
      const eraseMessageDraftSpy = sandbox.spy(element, '_eraseDraftComment');

      // Save should be disabled on an empty message.
      let disabled = element.$$('.save').hasAttribute('disabled');
      assert.isTrue(disabled, 'save button should be disabled.');
      element._messageText = '     ';
      disabled = element.$$('.save').hasAttribute('disabled');
      assert.isTrue(disabled, 'save button should be disabled.');

      const updateStub = sinon.stub();
      element.addEventListener('comment-update', updateStub);

      let numDiscardEvents = 0;
      element.addEventListener('comment-discard', e => {
        numDiscardEvents++;
        assert.isFalse(eraseMessageDraftSpy.called);
        if (numDiscardEvents === 2) {
          assert.isFalse(updateStub.called);
          done();
        }
      });
      MockInteractions.tap(element.$$('.cancel'));
      element.flushDebouncer('fire-update');
      element._messageText = '';
      MockInteractions.pressAndReleaseKeyOn(element.$.editTextarea, 27); // esc
    });

    test('draft discard removes message from storage', done => {
      element._messageText = '';
      const eraseMessageDraftSpy = sandbox.spy(element, '_eraseDraftComment');
      sandbox.stub(element, '_closeConfirmDiscardOverlay');

      element.addEventListener('comment-discard', e => {
        assert.isTrue(eraseMessageDraftSpy.called);
        done();
      });
      element._handleConfirmDiscard({preventDefault: sinon.stub()});
    });

    test('storage is cleared only after save success', () => {
      const eraseStub = sandbox.stub(element, '_eraseDraftComment');
      sandbox.stub(element.$.restAPI, 'getResponseObject')
          .returns(Promise.resolve({}));

      sandbox.stub(element, '_saveDraft').returns(Promise.resolve({ok: false}));

      const savePromise = element.save();
      assert.isFalse(eraseStub.called);
      return savePromise.then(() => {
        assert.isFalse(eraseStub.called);

        element._saveDraft.restore();
        sandbox.stub(element, '_saveDraft')
            .returns(Promise.resolve({ok: true}));
        return element.save().then(() => {
          assert.isTrue(eraseStub.called);
        });
      });
    });

    suite('confirm discard', () => {
      let saveDisabled;
      let discardStub;
      let overlayStub;
      let mockEvent;

      setup(() => {
        sandbox.stub(element, '_computeSaveDisabled', () => saveDisabled);
        discardStub = sandbox.stub(element, '_discardDraft');
        overlayStub = sandbox.stub(element, '_openOverlay');
        mockEvent = {preventDefault: sinon.stub()};
      });

      test('confirms discard of comments that can be saved', () => {
        saveDisabled = false;
        element._handleDiscard(mockEvent);
        assert.isTrue(overlayStub.calledWith(element.$.confirmDiscardOverlay));
        assert.isFalse(discardStub.called);
      });

      test('no confirmation for comments that cannot be saved', () => {
        saveDisabled = true;
        element._handleDiscard(mockEvent);
        assert.isFalse(overlayStub.called);
        assert.isTrue(discardStub.calledOnce);
      });
    });

    test('ctrl+s saves comment', done => {
      const stub = sinon.stub(element, 'save', () => {
        assert.isTrue(stub.called);
        stub.restore();
        done();
      });
      element._messageText = 'is that the horse from horsing around??';
      MockInteractions.pressAndReleaseKeyOn(
          element.$.editTextarea.$.textarea.textarea,
          83, 'ctrl'); // 'ctrl + s'
    });

    test('draft saving/editing', done => {
      const fireStub = sinon.stub(element, 'fire');
      const cancelDebounce = sandbox.stub(element, 'cancelDebouncer');

      element.draft = true;
      MockInteractions.tap(element.$$('.edit'));
      element._messageText = 'good news, everyone!';
      element.flushDebouncer('fire-update');
      element.flushDebouncer('store');
      assert(fireStub.calledWith('comment-update'),
          'comment-update should be sent');
      assert.isTrue(fireStub.calledOnce);

      element._messageText = 'good news, everyone!';
      element.flushDebouncer('fire-update');
      element.flushDebouncer('store');
      assert.isTrue(fireStub.calledOnce,
          'No events should fire for text editing');

      MockInteractions.tap(element.$$('.save'));

      assert.isTrue(element.disabled,
          'Element should be disabled when creating draft.');

      element._xhrPromise.then(draft => {
        assert(fireStub.calledWith('comment-save'),
            'comment-save should be sent');
        assert(cancelDebounce.calledWith('store'));

        assert.deepEqual(fireStub.lastCall.args[1], {
          comment: {
            __commentSide: 'right',
            __draft: true,
            __draftID: 'temp_draft_id',
            __editing: false,
            id: 'baf0414d_40572e03',
            line: 5,
            message: 'saved!',
            path: '/path/to/file',
            updated: '2015-12-08 21:52:36.177000000',
          },
          patchNum: 1,
        });
        assert.isFalse(element.disabled,
            'Element should be enabled when done creating draft.');
        assert.equal(draft.message, 'saved!');
        assert.isFalse(element.editing);
      }).then(() => {
        MockInteractions.tap(element.$$('.edit'));
        element._messageText = 'You’ll be delivering a package to Chapek 9, ' +
            'a world where humans are killed on sight.';
        MockInteractions.tap(element.$$('.save'));
        assert.isTrue(element.disabled,
            'Element should be disabled when updating draft.');

        element._xhrPromise.then(draft => {
          assert.isFalse(element.disabled,
              'Element should be enabled when done updating draft.');
          assert.equal(draft.message, 'saved!');
          assert.isFalse(element.editing);
          fireStub.restore();
          done();
        });
      });
    });

    test('draft prevent save when disabled', () => {
      const saveStub = sandbox.stub(element, 'save');
      element.draft = true;
      MockInteractions.tap(element.$$('.edit'));
      element._messageText = 'good news, everyone!';
      element.flushDebouncer('fire-update');
      element.flushDebouncer('store');

      element.disabled = true;
      MockInteractions.tap(element.$$('.save'));
      assert.isFalse(saveStub.called);

      element.disabled = false;
      MockInteractions.tap(element.$$('.save'));
      assert.isTrue(saveStub.calledOnce);
    });

    test('clicking on date link does not trigger nav', () => {
      const showStub = sinon.stub(page, 'show');
      const dateEl = element.$$('.date');
      assert.ok(dateEl);
      MockInteractions.tap(dateEl);
      const dest = window.location.pathname + '#5';
      assert(showStub.lastCall.calledWithExactly(dest, null, false),
          'Should navigate to ' + dest + ' without triggering nav');
      showStub.restore();
    });

    test('proper event fires on resolve', done => {
      element.addEventListener('comment-update', e => {
        assert.isTrue(e.detail.comment.unresolved);
        done();
      });
      MockInteractions.tap(element.$$('.resolve input'));
    });

    test('resolved comment state indicated by checkbox', () => {
      element.comment = {unresolved: false};
      assert.isTrue(element.$$('.resolve input').checked);
      element.comment = {unresolved: true};
      assert.isFalse(element.$$('.resolve input').checked);
    });

    suite('draft saving messages', () => {
      test('_getSavingMessage', () => {
        assert.equal(element._getSavingMessage(0), 'All changes saved');
        assert.equal(element._getSavingMessage(1), 'Saving 1 draft...');
        assert.equal(element._getSavingMessage(2), 'Saving 2 drafts...');
        assert.equal(element._getSavingMessage(3), 'Saving 3 drafts...');
      });

      test('_show{Start,End}Request', () => {
        const updateStub = sandbox.stub(element, '_updateRequestToast');
        element._numPendingDraftRequests.number = 1;

        element._showStartRequest();
        assert.isTrue(updateStub.calledOnce);
        assert.equal(updateStub.lastCall.args[0], 2);
        assert.equal(element._numPendingDraftRequests.number, 2);

        element._showEndRequest();
        assert.isTrue(updateStub.calledTwice);
        assert.equal(updateStub.lastCall.args[0], 1);
        assert.equal(element._numPendingDraftRequests.number, 1);

        element._showEndRequest();
        assert.isTrue(updateStub.calledThrice);
        assert.equal(updateStub.lastCall.args[0], 0);
        assert.equal(element._numPendingDraftRequests.number, 0);
      });
    });

    suite('saving progress indicators', () => {
      setup(() => {
        sandbox.stub(element, '_deleteDraft').returns(Promise.resolve());
        element._savingMessage = '';
      });

      test('saving', () => {
        element._saveDraft();
        assert.equal(element._savingMessage, 'Saving draft...');
      });

      test('discarding', () => {
        element._discardDraft();
        assert.equal(element._savingMessage, 'Discarding draft...');
      });
    });

    test('cancelling an unsaved draft discards, persists in storage', () => {
      const discardSpy = sandbox.spy(element, '_fireDiscard');
      const storeStub = sandbox.stub(element.$.storage, 'setDraftComment');
      const eraseStub = sandbox.stub(element.$.storage, 'eraseDraftComment');
      element._messageText = 'test text';
      flushAsynchronousOperations();
      element.flushDebouncer('store');

      assert.isTrue(storeStub.called);
      assert.equal(storeStub.lastCall.args[1], 'test text');
      element._handleCancel({preventDefault: () => {}});
      assert.isTrue(discardSpy.called);
      assert.isFalse(eraseStub.called);
    });

    test('cancelling edit on a saved draft does not store', () => {
      element.comment.id = 'foo';
      const discardSpy = sandbox.spy(element, '_fireDiscard');
      const storeStub = sandbox.stub(element.$.storage, 'setDraftComment');
      element._messageText = 'test text';
      flushAsynchronousOperations();
      element.flushDebouncer('store');

      assert.isFalse(storeStub.called);
      element._handleCancel({preventDefault: () => {}});
      assert.isTrue(discardSpy.called);
    });
  });
</script>