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

<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>
<script src="../../../test/test-pre-setup.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<script src="../../../scripts/util.js"></script>

<link rel="import" href="gr-change-actions.html">

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

<test-fixture id="basic">
  <template>
    <gr-change-actions></gr-change-actions>
  </template>
</test-fixture>

<script>
  // TODO(dhruvsri): remove use of _populateRevertMessage as it's private
  suite('gr-change-actions tests', async () => {
    await readyToTest();
    let element;
    let sandbox;

    suite('basic tests', () => {
      setup(() => {
        stub('gr-rest-api-interface', {
          getChangeRevisionActions() {
            return Promise.resolve({
              cherrypick: {
                method: 'POST',
                label: 'Cherry Pick',
                title: 'Cherry pick change to a different branch',
                enabled: true,
              },
              rebase: {
                method: 'POST',
                label: 'Rebase',
                title: 'Rebase onto tip of branch or parent change',
                enabled: true,
              },
              submit: {
                method: 'POST',
                label: 'Submit',
                title: 'Submit patch set 2 into master',
                enabled: true,
              },
            });
          },
          send(method, url, payload) {
            if (method !== 'POST') {
              return Promise.reject(new Error('bad method'));
            }

            if (url === '/changes/test~42/revisions/2/submit') {
              return Promise.resolve({
                ok: true,
                text() { return Promise.resolve(')]}\'\n{}'); },
              });
            } else if (url === '/changes/test~42/revisions/2/rebase') {
              return Promise.resolve({
                ok: true,
                text() { return Promise.resolve(')]}\'\n{}'); },
              });
            }

            return Promise.reject(new Error('bad url'));
          },
          getProjectConfig() { return Promise.resolve({}); },
        });

        sandbox = sinon.sandbox.create();
        sandbox.stub(Gerrit, 'awaitPluginsLoaded').returns(Promise.resolve());

        element = fixture('basic');
        element.change = {};
        element.changeNum = '42';
        element.latestPatchNum = '2';
        element.actions = {
          '/': {
            method: 'DELETE',
            label: 'Delete Change',
            title: 'Delete change X_X',
            enabled: true,
          },
        };
        sandbox.stub(element.$.confirmCherrypick.$.restAPI,
            'getRepoBranches').returns(Promise.resolve([]));
        sandbox.stub(element.$.confirmMove.$.restAPI,
            'getRepoBranches').returns(Promise.resolve([]));

        return element.reload();
      });

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

      test('primary and secondary actions split properly', () => {
        // Submit should be the only primary action.
        assert.equal(element._topLevelPrimaryActions.length, 1);
        assert.equal(element._topLevelPrimaryActions[0].label, 'Submit');
        assert.equal(element._topLevelSecondaryActions.length,
            element._topLevelActions.length - 1);
      });

      test('_shouldHideActions', () => {
        assert.isTrue(element._shouldHideActions(undefined, true));
        assert.isTrue(element._shouldHideActions({base: {}}, false));
        assert.isFalse(element._shouldHideActions({base: ['test']}, false));
      });

      test('plugin revision actions', done => {
        sandbox.stub(element.$.restAPI, 'getChangeActionURL').returns(
            Promise.resolve('the-url'));
        element.revisionActions = {
          'plugin~action': {},
        };
        assert.isOk(element.revisionActions['plugin~action']);
        flush(() => {
          assert.isTrue(element.$.restAPI.getChangeActionURL.calledWith(
              element.changeNum, element.latestPatchNum, '/plugin~action'));
          assert.equal(element.revisionActions['plugin~action'].__url, 'the-url');
          done();
        });
      });

      test('plugin change actions', done => {
        sandbox.stub(element.$.restAPI, 'getChangeActionURL').returns(
            Promise.resolve('the-url'));
        element.actions = {
          'plugin~action': {},
        };
        assert.isOk(element.actions['plugin~action']);
        flush(() => {
          assert.isTrue(element.$.restAPI.getChangeActionURL.calledWith(
              element.changeNum, null, '/plugin~action'));
          assert.equal(element.actions['plugin~action'].__url, 'the-url');
          done();
        });
      });

      test('not supported actions are filtered out', () => {
        element.revisionActions = {followup: {}};
        assert.equal(element.querySelectorAll(
            'section gr-button[data-action-type="revision"]').length, 0);
      });

      test('getActionDetails', () => {
        element.revisionActions = Object.assign({
          'plugin~action': {},
        }, element.revisionActions);
        assert.isUndefined(element.getActionDetails('rubbish'));
        assert.strictEqual(element.revisionActions['plugin~action'],
            element.getActionDetails('plugin~action'));
        assert.strictEqual(element.revisionActions['rebase'],
            element.getActionDetails('rebase'));
      });

      test('hide revision action', done => {
        flush(() => {
          const buttonEl = element.$$('[data-action-key="submit"]');
          assert.isOk(buttonEl);
          assert.throws(element.setActionHidden.bind(element, 'invalid type'));
          element.setActionHidden(element.ActionType.REVISION,
              element.RevisionActions.SUBMIT, true);
          assert.lengthOf(element._hiddenActions, 1);
          element.setActionHidden(element.ActionType.REVISION,
              element.RevisionActions.SUBMIT, true);
          assert.lengthOf(element._hiddenActions, 1);
          flush(() => {
            const buttonEl = element.$$('[data-action-key="submit"]');
            assert.isNotOk(buttonEl);

            element.setActionHidden(element.ActionType.REVISION,
                element.RevisionActions.SUBMIT, false);
            flush(() => {
              const buttonEl = element.$$('[data-action-key="submit"]');
              assert.isOk(buttonEl);
              assert.isFalse(buttonEl.hasAttribute('hidden'));
              done();
            });
          });
        });
      });

      test('buttons exist', done => {
        element._loading = false;
        flush(() => {
          const buttonEls = Polymer.dom(element.root)
              .querySelectorAll('gr-button');
          const menuItems = element.$.moreActions.items;

          // Total button number is one greater than the number of total actions
          // due to the existence of the overflow menu trigger.
          assert.equal(buttonEls.length + menuItems.length,
              element._allActionValues.length + 1);
          assert.isFalse(element.hidden);
          done();
        });
      });

      test('delete buttons have explicit labels', done => {
        flush(() => {
          const deleteItems = element.$.moreActions.items
              .filter(item => item.id.startsWith('delete'));
          assert.equal(deleteItems.length, 1);
          assert.notEqual(deleteItems[0].name);
          assert.equal(deleteItems[0].name, 'Delete change');
          done();
        });
      });

      test('get revision object from change', () => {
        const revObj = {_number: 2, foo: 'bar'};
        const change = {
          revisions: {
            rev1: {_number: 1},
            rev2: revObj,
          },
        };
        assert.deepEqual(element._getRevision(change, '2'), revObj);
      });

      test('_actionComparator sort order', () => {
        const actions = [
          {label: '123', __type: 'change', __key: 'review'},
          {label: 'abc-ro', __type: 'revision'},
          {label: 'abc', __type: 'change'},
          {label: 'def', __type: 'change'},
          {label: 'def-p', __type: 'change', __primary: true},
        ];

        const result = actions.slice();
        result.reverse();
        result.sort(element._actionComparator.bind(element));
        assert.deepEqual(result, actions);
      });

      test('submit change', () => {
        const showSpy = sandbox.spy(element, '_showActionDialog');
        sandbox.stub(element.$.restAPI, 'getFromProjectLookup')
            .returns(Promise.resolve('test'));
        sandbox.stub(element, 'fetchChangeUpdates',
            () => Promise.resolve({isLatest: true}));
        sandbox.stub(element.$.overlay, 'open').returns(Promise.resolve());
        element.change = {
          revisions: {
            rev1: {_number: 1},
            rev2: {_number: 2},
          },
        };
        element.latestPatchNum = '2';

        const submitButton = element.$$('gr-button[data-action-key="submit"]');
        assert.ok(submitButton);
        MockInteractions.tap(submitButton);

        flushAsynchronousOperations();
        assert.isTrue(showSpy.calledWith(element.$.confirmSubmitDialog));
      });

      test('submit change, tap on icon', done => {
        sandbox.stub(element.$.confirmSubmitDialog, 'resetFocus', done);
        sandbox.stub(element.$.restAPI, 'getFromProjectLookup')
            .returns(Promise.resolve('test'));
        sandbox.stub(element, 'fetchChangeUpdates',
            () => Promise.resolve({isLatest: true}));
        sandbox.stub(element.$.overlay, 'open').returns(Promise.resolve());
        element.change = {
          revisions: {
            rev1: {_number: 1},
            rev2: {_number: 2},
          },
        };
        element.latestPatchNum = '2';

        const submitIcon =
            element.$$('gr-button[data-action-key="submit"] iron-icon');
        assert.ok(submitIcon);
        MockInteractions.tap(submitIcon);
      });

      test('_handleSubmitConfirm', () => {
        const fireStub = sandbox.stub(element, '_fireAction');
        sandbox.stub(element, '_canSubmitChange').returns(true);
        element._handleSubmitConfirm();
        assert.isTrue(fireStub.calledOnce);
        assert.deepEqual(fireStub.lastCall.args,
            ['/submit', element.revisionActions.submit, true]);
      });

      test('_handleSubmitConfirm when not able to submit', () => {
        const fireStub = sandbox.stub(element, '_fireAction');
        sandbox.stub(element, '_canSubmitChange').returns(false);
        element._handleSubmitConfirm();
        assert.isFalse(fireStub.called);
      });

      test('submit change with plugin hook', done => {
        sandbox.stub(element, '_canSubmitChange',
            () => false);
        const fireActionStub = sandbox.stub(element, '_fireAction');
        flush(() => {
          const submitButton = element.$$('gr-button[data-action-key="submit"]');
          assert.ok(submitButton);
          MockInteractions.tap(submitButton);
          assert.equal(fireActionStub.callCount, 0);

          done();
        });
      });

      test('chain state', () => {
        assert.equal(element._hasKnownChainState, false);
        element.hasParent = true;
        assert.equal(element._hasKnownChainState, true);
        element.hasParent = false;
      });

      test('_calculateDisabled', () => {
        let hasKnownChainState = false;
        const action = {__key: 'rebase', enabled: true};
        assert.equal(
            element._calculateDisabled(action, hasKnownChainState), true);

        action.__key = 'delete';
        assert.equal(
            element._calculateDisabled(action, hasKnownChainState), false);

        action.__key = 'rebase';
        hasKnownChainState = true;
        assert.equal(
            element._calculateDisabled(action, hasKnownChainState), false);

        action.enabled = false;
        assert.equal(
            element._calculateDisabled(action, hasKnownChainState), true);
      });

      test('rebase change', done => {
        const fireActionStub = sandbox.stub(element, '_fireAction');
        const fetchChangesStub = sandbox.stub(element.$.confirmRebase,
            'fetchRecentChanges').returns(Promise.resolve([]));
        element._hasKnownChainState = true;
        flush(() => {
          const rebaseButton = element.$$('gr-button[data-action-key="rebase"]');
          MockInteractions.tap(rebaseButton);
          const rebaseAction = {
            __key: 'rebase',
            __type: 'revision',
            __primary: false,
            enabled: true,
            label: 'Rebase',
            method: 'POST',
            title: 'Rebase onto tip of branch or parent change',
          };
          assert.isTrue(fetchChangesStub.called);
          element._handleRebaseConfirm({detail: {base: '1234'}});
          rebaseAction.rebaseOnCurrent = true;
          assert.deepEqual(fireActionStub.lastCall.args,
              ['/rebase', rebaseAction, true, {base: '1234'}]);
          done();
        });
      });

      test(`rebase dialog gets recent changes each time it's opened`, done => {
        const fetchChangesStub = sandbox.stub(element.$.confirmRebase,
            'fetchRecentChanges').returns(Promise.resolve([]));
        element._hasKnownChainState = true;
        const rebaseButton = element.$$('gr-button[data-action-key="rebase"]');
        MockInteractions.tap(rebaseButton);
        assert.isTrue(fetchChangesStub.calledOnce);

        flush(() => {
          element.$.confirmRebase.fire('cancel');
          MockInteractions.tap(rebaseButton);
          assert.isTrue(fetchChangesStub.calledTwice);
          done();
        });
      });

      test('two dialogs are not shown at the same time', done => {
        element._hasKnownChainState = true;
        flush(() => {
          const rebaseButton = element.$$('gr-button[data-action-key="rebase"]');
          assert.ok(rebaseButton);
          MockInteractions.tap(rebaseButton);
          flushAsynchronousOperations();
          assert.isFalse(element.$.confirmRebase.hidden);

          element._handleCherrypickTap();
          flushAsynchronousOperations();
          assert.isTrue(element.$.confirmRebase.hidden);
          assert.isFalse(element.$.confirmCherrypick.hidden);
          done();
        });
      });

      test('fullscreen-overlay-opened hides content', () => {
        sandbox.spy(element, '_handleHideBackgroundContent');
        element.$.overlay.fire('fullscreen-overlay-opened');
        assert.isTrue(element._handleHideBackgroundContent.called);
        assert.isTrue(element.$.mainContent.classList.contains('overlayOpen'));
      });

      test('fullscreen-overlay-closed shows content', () => {
        sandbox.spy(element, '_handleShowBackgroundContent');
        element.$.overlay.fire('fullscreen-overlay-closed');
        assert.isTrue(element._handleShowBackgroundContent.called);
        assert.isFalse(element.$.mainContent.classList.contains('overlayOpen'));
      });

      test('_setLabelValuesOnRevert', () => {
        const labels = {'Foo': 1, 'Bar-Baz': -2};
        const changeId = 1234;
        sandbox.stub(element.$.jsAPI, 'getLabelValuesPostRevert').returns(labels);
        const saveStub = sandbox.stub(element.$.restAPI, 'saveChangeReview')
            .returns(Promise.resolve());
        return element._setLabelValuesOnRevert(changeId).then(() => {
          assert.isTrue(saveStub.calledOnce);
          assert.equal(saveStub.lastCall.args[0], changeId);
          assert.deepEqual(saveStub.lastCall.args[2], {labels});
        });
      });

      suite('change edits', () => {
        test('disableEdit', () => {
          element.set('editMode', false);
          element.set('editPatchsetLoaded', false);
          element.change = {status: 'NEW'};
          element.set('disableEdit', true);
          flushAsynchronousOperations();

          assert.isNotOk(element.$$('gr-button[data-action-key="publishEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="rebaseEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="deleteEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="edit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="stopEdit"]'));
        });

        test('shows confirm dialog for delete edit', () => {
          element.set('editMode', true);
          element.set('editPatchsetLoaded', true);

          const fireActionStub = sandbox.stub(element, '_fireAction');
          element._handleDeleteEditTap();
          assert.isFalse(element.$.confirmDeleteEditDialog.hidden);
          MockInteractions.tap(
              element.shadowRoot
                  .querySelector('#confirmDeleteEditDialog')
                  .$$('gr-button[primary]'));
          flushAsynchronousOperations();

          assert.equal(fireActionStub.lastCall.args[0], '/edit');
        });

        test('hide publishEdit and rebaseEdit if change is not open', () => {
          element.set('editMode', true);
          element.set('editPatchsetLoaded', true);
          element.change = {status: 'MERGED'};
          flushAsynchronousOperations();

          assert.isNotOk(element.$$('gr-button[data-action-key="publishEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="rebaseEdit"]'));
          assert.isOk(element.$$('gr-button[data-action-key="deleteEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="edit"]'));
        });

        test('edit patchset is loaded, needs rebase', () => {
          element.set('editMode', true);
          element.set('editPatchsetLoaded', true);
          element.change = {status: 'NEW'};
          element.editBasedOnCurrentPatchSet = false;
          flushAsynchronousOperations();

          assert.isNotOk(element.$$('gr-button[data-action-key="publishEdit"]'));
          assert.isOk(element.$$('gr-button[data-action-key="rebaseEdit"]'));
          assert.isOk(element.$$('gr-button[data-action-key="deleteEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="edit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="stopEdit"]'));
        });

        test('edit patchset is loaded, does not need rebase', () => {
          element.set('editMode', true);
          element.set('editPatchsetLoaded', true);
          element.change = {status: 'NEW'};
          element.editBasedOnCurrentPatchSet = true;
          flushAsynchronousOperations();

          assert.isOk(element.$$('gr-button[data-action-key="publishEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="rebaseEdit"]'));
          assert.isOk(element.$$('gr-button[data-action-key="deleteEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="edit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="stopEdit"]'));
        });

        test('edit mode is loaded, no edit patchset', () => {
          element.set('editMode', true);
          element.set('editPatchsetLoaded', false);
          element.change = {status: 'NEW'};
          flushAsynchronousOperations();

          assert.isNotOk(element.$$('gr-button[data-action-key="publishEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="rebaseEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="deleteEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="edit"]'));
          assert.isOk(element.$$('gr-button[data-action-key="stopEdit"]'));
        });

        test('normal patch set', () => {
          element.set('editMode', false);
          element.set('editPatchsetLoaded', false);
          element.change = {status: 'NEW'};
          flushAsynchronousOperations();

          assert.isNotOk(element.$$('gr-button[data-action-key="publishEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="rebaseEdit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="deleteEdit"]'));
          assert.isOk(element.$$('gr-button[data-action-key="edit"]'));
          assert.isNotOk(element.$$('gr-button[data-action-key="stopEdit"]'));
        });

        test('edit action', done => {
          element.addEventListener('edit-tap', () => { done(); });
          element.set('editMode', true);
          element.change = {status: 'NEW'};
          flushAsynchronousOperations();

          assert.isNotOk(element.$$('gr-button[data-action-key="edit"]'));
          assert.isOk(element.$$('gr-button[data-action-key="stopEdit"]'));
          element.change = {status: 'MERGED'};
          flushAsynchronousOperations();

          assert.isNotOk(element.$$('gr-button[data-action-key="edit"]'));
          element.change = {status: 'NEW'};
          element.set('editMode', false);
          flushAsynchronousOperations();

          const editButton = element.$$('gr-button[data-action-key="edit"]');
          assert.isOk(editButton);
          MockInteractions.tap(editButton);
        });
      });

      suite('cherry-pick', () => {
        let fireActionStub;

        setup(() => {
          fireActionStub = sandbox.stub(element, '_fireAction');
          sandbox.stub(window, 'alert');
        });

        test('works', () => {
          element._handleCherrypickTap();
          const action = {
            __key: 'cherrypick',
            __type: 'revision',
            __primary: false,
            enabled: true,
            label: 'Cherry pick',
            method: 'POST',
            title: 'Cherry pick change to a different branch',
          };

          element._handleCherrypickConfirm();
          assert.equal(fireActionStub.callCount, 0);

          element.$.confirmCherrypick.branch = 'master';
          element._handleCherrypickConfirm();
          assert.equal(fireActionStub.callCount, 0); // Still needs a message.

          // Add attributes that are used to determine the message.
          element.$.confirmCherrypick.commitMessage = 'foo message';
          element.$.confirmCherrypick.changeStatus = 'OPEN';
          element.$.confirmCherrypick.commitNum = '123';

          element._handleCherrypickConfirm();

          assert.equal(element.$.confirmCherrypick.$.messageInput.value,
              'foo message');

          assert.deepEqual(fireActionStub.lastCall.args, [
            '/cherrypick', action, true, {
              destination: 'master',
              base: null,
              message: 'foo message',
              allow_conflicts: false,
            },
          ]);
        });

        test('cherry pick even with conflicts', () => {
          element._handleCherrypickTap();
          const action = {
            __key: 'cherrypick',
            __type: 'revision',
            __primary: false,
            enabled: true,
            label: 'Cherry pick',
            method: 'POST',
            title: 'Cherry pick change to a different branch',
          };

          element.$.confirmCherrypick.branch = 'master';

          // Add attributes that are used to determine the message.
          element.$.confirmCherrypick.commitMessage = 'foo message';
          element.$.confirmCherrypick.changeStatus = 'OPEN';
          element.$.confirmCherrypick.commitNum = '123';

          element._handleCherrypickConflictConfirm();

          assert.deepEqual(fireActionStub.lastCall.args, [
            '/cherrypick', action, true, {
              destination: 'master',
              base: null,
              message: 'foo message',
              allow_conflicts: true,
            },
          ]);
        });

        test('branch name cleared when re-open cherrypick', () => {
          const emptyBranchName = '';
          element.$.confirmCherrypick.branch = 'master';

          element._handleCherrypickTap();
          assert.equal(element.$.confirmCherrypick.branch, emptyBranchName);
        });
      });

      suite('move change', () => {
        let fireActionStub;

        setup(() => {
          fireActionStub = sandbox.stub(element, '_fireAction');
          sandbox.stub(window, 'alert');
        });

        test('works', () => {
          element._handleMoveTap();

          element._handleMoveConfirm();
          assert.equal(fireActionStub.callCount, 0);

          element.$.confirmMove.branch = 'master';
          element._handleMoveConfirm();
          assert.equal(fireActionStub.callCount, 1);
        });

        test('branch name cleared when re-open move', () => {
          const emptyBranchName = '';
          element.$.confirmMove.branch = 'master';

          element._handleMoveTap();
          assert.equal(element.$.confirmMove.branch, emptyBranchName);
        });
      });

      test('custom actions', done => {
        // Add a button with the same key as a server-based one to ensure
        // collisions are taken care of.
        const key = element.addActionButton(element.ActionType.REVISION, 'Bork!');
        element.addEventListener(key + '-tap', e => {
          assert.equal(e.detail.node.getAttribute('data-action-key'), key);
          element.removeActionButton(key);
          flush(() => {
            assert.notOk(element.$$('[data-action-key="' + key + '"]'));
            done();
          });
        });
        flush(() => {
          MockInteractions.tap(element.$$('[data-action-key="' + key + '"]'));
        });
      });

      test('_setLoadingOnButtonWithKey top-level', () => {
        const key = 'rebase';
        const type = 'revision';
        const cleanup = element._setLoadingOnButtonWithKey(type, key);
        assert.equal(element._actionLoadingMessage, 'Rebasing...');

        const button = element.$$('[data-action-key="' + key + '"]');
        assert.isTrue(button.hasAttribute('loading'));
        assert.isTrue(button.disabled);

        assert.isOk(cleanup);
        assert.isFunction(cleanup);
        cleanup();

        assert.isFalse(button.hasAttribute('loading'));
        assert.isFalse(button.disabled);
        assert.isNotOk(element._actionLoadingMessage);
      });

      test('_setLoadingOnButtonWithKey overflow menu', () => {
        const key = 'cherrypick';
        const type = 'revision';
        const cleanup = element._setLoadingOnButtonWithKey(type, key);
        assert.equal(element._actionLoadingMessage, 'Cherry-picking...');
        assert.include(element._disabledMenuActions, 'cherrypick');
        assert.isFunction(cleanup);

        cleanup();

        assert.notOk(element._actionLoadingMessage);
        assert.notInclude(element._disabledMenuActions, 'cherrypick');
      });

      suite('abandon change', () => {
        let alertStub;
        let fireActionStub;

        setup(() => {
          fireActionStub = sandbox.stub(element, '_fireAction');
          alertStub = sandbox.stub(window, 'alert');
          element.actions = {
            abandon: {
              method: 'POST',
              label: 'Abandon',
              title: 'Abandon the change',
              enabled: true,
            },
          };
          return element.reload();
        });

        test('abandon change with message', done => {
          const newAbandonMsg = 'Test Abandon Message';
          element.$.confirmAbandonDialog.message = newAbandonMsg;
          flush(() => {
            const abandonButton =
                element.$$('gr-button[data-action-key="abandon"]');
            MockInteractions.tap(abandonButton);

            assert.equal(element.$.confirmAbandonDialog.message, newAbandonMsg);
            done();
          });
        });

        test('abandon change with no message', done => {
          flush(() => {
            const abandonButton =
                element.$$('gr-button[data-action-key="abandon"]');
            MockInteractions.tap(abandonButton);

            assert.isUndefined(element.$.confirmAbandonDialog.message);
            done();
          });
        });

        test('works', () => {
          element.$.confirmAbandonDialog.message = 'original message';
          const restoreButton =
              element.$$('gr-button[data-action-key="abandon"]');
          MockInteractions.tap(restoreButton);

          element.$.confirmAbandonDialog.message = 'foo message';
          element._handleAbandonDialogConfirm();
          assert.notOk(alertStub.called);

          const action = {
            __key: 'abandon',
            __type: 'change',
            __primary: false,
            enabled: true,
            label: 'Abandon',
            method: 'POST',
            title: 'Abandon the change',
          };
          assert.deepEqual(fireActionStub.lastCall.args, [
            '/abandon', action, false, {
              message: 'foo message',
            }]);
        });
      });

      suite('revert change', () => {
        let fireActionStub;

        setup(() => {
          fireActionStub = sandbox.stub(element, '_fireAction');
          element.commitMessage = 'random commit message';
          element.change.current_revision = 'abcdef';
          element.actions = {
            revert: {
              method: 'POST',
              label: 'Revert',
              title: 'Revert the change',
              enabled: true,
            },
          };
          return element.reload();
        });

        test('revert change with plugin hook', done => {
          const newRevertMsg = 'Modified revert msg';
          sandbox.stub(element.$.confirmRevertDialog, '_modifyRevertMsg',
              () => newRevertMsg);
          element.change = {
            current_revision: 'abc1234',
          };
          sandbox.stub(element.$.restAPI, 'getChanges')
              .returns(Promise.resolve([
                {change_id: '12345678901234', topic: 'T', subject: 'random'},
                {change_id: '23456', topic: 'T', subject: 'a'.repeat(100)},
              ]));
          sandbox.stub(element.$.confirmRevertDialog,
              '_populateRevertSubmissionMessage', () => 'original msg');
          flush(() => {
            const revertButton = element.shadowRoot
                .querySelector('gr-button[data-action-key="revert"]');
            MockInteractions.tap(revertButton);
            flush(() => {
              assert.equal(element.$.confirmRevertDialog._message, newRevertMsg);
              done();
            });
          });
        });

        suite('revert change submitted together', () => {
          setup(() => {
            element.change = {
              submission_id: '199',
              current_revision: '2000',
            };
            sandbox.stub(element.$.restAPI, 'getChanges')
                .returns(Promise.resolve([
                  {change_id: '12345678901234', topic: 'T', subject: 'random'},
                  {change_id: '23456', topic: 'T', subject: 'a'.repeat(100)},
                ]));
          });

          test('confirm revert dialog shows both options', done => {
            const revertButton = element.shadowRoot
                .querySelector('gr-button[data-action-key="revert"]');
            MockInteractions.tap(revertButton);
            flush(() => {
              const confirmRevertDialog = element.$.confirmRevertDialog;
              const revertSingleChangeLabel = confirmRevertDialog
                  .shadowRoot.querySelector('.revertSingleChange');
              const revertSubmissionLabel = confirmRevertDialog.
                  shadowRoot.querySelector('.revertSubmission');
              assert(revertSingleChangeLabel.innerText.trim() ===
                  'Revert single change');
              assert(revertSubmissionLabel.innerText.trim() ===
                  'Revert entire submission (2 Changes)');
              let expectedMsg = 'Revert submission 199' + '\n\n' +
                'Reason for revert: <INSERT REASONING HERE>' + '\n' +
                'Reverted Changes:' + '\n' +
                '1234567890:random' + '\n' +
                '23456:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...' +
                '\n';
              assert.equal(confirmRevertDialog._message, expectedMsg);
              const radioInputs = confirmRevertDialog.shadowRoot
                  .querySelectorAll('input[name="revertOptions"]');
              MockInteractions.tap(radioInputs[0]);
              flush(() => {
                expectedMsg = 'Revert "random commit message"\n\nThis reverts '
                 + 'commit 2000.\n\nReason'
                 + ' for revert: <INSERT REASONING HERE>\n';
                assert.equal(confirmRevertDialog._message, expectedMsg);
                done();
              });
            });
          });

          test('submit fails if message is not edited', done => {
            const revertButton = element.shadowRoot
                .querySelector('gr-button[data-action-key="revert"]');
            const confirmRevertDialog = element.$.confirmRevertDialog;
            MockInteractions.tap(revertButton);
            const fireStub = sandbox.stub(confirmRevertDialog, 'fire');
            flush(() => {
              const confirmButton = element.$.confirmRevertDialog.shadowRoot
                  .querySelector('gr-dialog')
                  .shadowRoot.querySelector('#confirm');
              MockInteractions.tap(confirmButton);
              flush(() => {
                assert.isTrue(confirmRevertDialog._showErrorMessage);
                assert.isFalse(fireStub.called);
                done();
              });
            });
          });

          test('message modification is retained on switching', done => {
            const revertButton = element.shadowRoot
                .querySelector('gr-button[data-action-key="revert"]');
            const confirmRevertDialog = element.$.confirmRevertDialog;
            MockInteractions.tap(revertButton);
            flush(() => {
              const radioInputs = confirmRevertDialog.shadowRoot
                  .querySelectorAll('input[name="revertOptions"]');
              const revertSubmissionMsg = 'Revert submission 199' + '\n\n' +
              'Reason for revert: <INSERT REASONING HERE>' + '\n' +
              'Reverted Changes:' + '\n' +
              '1234567890:random' + '\n' +
              '23456:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...' +
              '\n';
              const singleChangeMsg =
              'Revert "random commit message"\n\nThis reverts '
                + 'commit 2000.\n\nReason'
                + ' for revert: <INSERT REASONING HERE>\n';
              assert.equal(confirmRevertDialog._message, revertSubmissionMsg);
              const newRevertMsg = revertSubmissionMsg + 'random';
              const newSingleChangeMsg = singleChangeMsg + 'random';
              confirmRevertDialog._message = newRevertMsg;
              MockInteractions.tap(radioInputs[0]);
              flush(() => {
                assert.equal(confirmRevertDialog._message, singleChangeMsg);
                confirmRevertDialog._message = newSingleChangeMsg;
                MockInteractions.tap(radioInputs[1]);
                flush(() => {
                  assert.equal(confirmRevertDialog._message, newRevertMsg);
                  MockInteractions.tap(radioInputs[0]);
                  flush(() => {
                    assert.equal(
                        confirmRevertDialog._message,
                        newSingleChangeMsg
                    );
                    done();
                  });
                });
              });
            });
          });
        });

        suite('revert single change', () => {
          setup(() => {
            element.change = {
              submission_id: '199',
              current_revision: '2000',
            };
            sandbox.stub(element.$.restAPI, 'getChanges')
                .returns(Promise.resolve([
                  {change_id: '12345678901234', topic: 'T', subject: 'random'},
                ]));
          });

          test('submit fails if message is not edited', done => {
            const revertButton = element.shadowRoot
                .querySelector('gr-button[data-action-key="revert"]');
            const confirmRevertDialog = element.$.confirmRevertDialog;
            MockInteractions.tap(revertButton);
            const fireStub = sandbox.stub(confirmRevertDialog, 'fire');
            flush(() => {
              const confirmButton = element.$.confirmRevertDialog.shadowRoot
                  .querySelector('gr-dialog')
                  .shadowRoot.querySelector('#confirm');
              MockInteractions.tap(confirmButton);
              flush(() => {
                assert.isTrue(confirmRevertDialog._showErrorMessage);
                assert.isFalse(fireStub.called);
                done();
              });
            });
          });

          test('confirm revert dialog shows no radio button', done => {
            const revertButton = element.shadowRoot
                .querySelector('gr-button[data-action-key="revert"]');
            MockInteractions.tap(revertButton);
            flush(() => {
              const confirmRevertDialog = element.$.confirmRevertDialog;
              const radioInputs = confirmRevertDialog.shadowRoot
                  .querySelectorAll('input[name="revertOptions"]');
              assert.equal(radioInputs.length, 0);
              const msg = 'Revert "random commit message"\n\n'
                + 'This reverts commit 2000.\n\nReason '
                + 'for revert: <INSERT REASONING HERE>\n';
              assert.equal(confirmRevertDialog._message, msg);
              const editedMsg = msg + 'hello';
              confirmRevertDialog._message += 'hello';
              const confirmButton = element.$.confirmRevertDialog.shadowRoot
                  .querySelector('gr-dialog')
                  .shadowRoot.querySelector('#confirm');
              MockInteractions.tap(confirmButton);
              flush(() => {
                assert.equal(fireActionStub.getCall(0).args[0], '/revert');
                assert.equal(fireActionStub.getCall(0).args[1].__key, 'revert');
                assert.equal(fireActionStub.getCall(0).args[3].message,
                    editedMsg);
                done();
              });
            });
          });
        });
      });

      suite('mark change private', () => {
        setup(() => {
          const privateAction = {
            __key: 'private',
            __type: 'change',
            __primary: false,
            method: 'POST',
            label: 'Mark private',
            title: 'Working...',
            enabled: true,
          };

          element.actions = {
            private: privateAction,
          };

          element.change.is_private = false;

          element.changeNum = '2';
          element.latestPatchNum = '2';

          return element.reload();
        });

        test('make sure the mark private change button is not outside of the ' +
             'overflow menu', done => {
          flush(() => {
            assert.isNotOk(element.$$('[data-action-key="private"]'));
            done();
          });
        });

        test('private change', done => {
          flush(() => {
            assert.isOk(
                element.$.moreActions.$$('span[data-id="private-change"]'));
            element.setActionOverflow('change', 'private', false);
            flushAsynchronousOperations();
            assert.isOk(element.$$('[data-action-key="private"]'));
            assert.isNotOk(
                element.$.moreActions.$$('span[data-id="private-change"]'));
            done();
          });
        });
      });

      suite('unmark private change', () => {
        setup(() => {
          const unmarkPrivateAction = {
            __key: 'private.delete',
            __type: 'change',
            __primary: false,
            method: 'POST',
            label: 'Unmark private',
            title: 'Working...',
            enabled: true,
          };

          element.actions = {
            'private.delete': unmarkPrivateAction,
          };

          element.change.is_private = true;

          element.changeNum = '2';
          element.latestPatchNum = '2';

          return element.reload();
        });

        test('make sure the unmark private change button is not outside of the ' +
             'overflow menu', done => {
          flush(() => {
            assert.isNotOk(element.$$('[data-action-key="private.delete"]'));
            done();
          });
        });

        test('unmark the private change', done => {
          flush(() => {
            assert.isOk(
                element.$.moreActions.$$('span[data-id="private.delete-change"]')
            );
            element.setActionOverflow('change', 'private.delete', false);
            flushAsynchronousOperations();
            assert.isOk(element.$$('[data-action-key="private.delete"]'));
            assert.isNotOk(
                element.$.moreActions.$$('span[data-id="private.delete-change"]')
            );
            done();
          });
        });
      });

      suite('delete change', () => {
        let fireActionStub;
        let deleteAction;

        setup(() => {
          fireActionStub = sandbox.stub(element, '_fireAction');
          element.change = {
            current_revision: 'abc1234',
          };
          deleteAction = {
            method: 'DELETE',
            label: 'Delete Change',
            title: 'Delete change X_X',
            enabled: true,
          };
          element.actions = {
            '/': deleteAction,
          };
        });

        test('does not delete on action', () => {
          element._handleDeleteTap();
          assert.isFalse(fireActionStub.called);
        });

        test('shows confirm dialog', () => {
          element._handleDeleteTap();
          assert.isFalse(element.shadowRoot
              .querySelector('#confirmDeleteDialog').hidden);
          MockInteractions.tap(
              element.shadowRoot
                  .querySelector('#confirmDeleteDialog')
                  .$$('gr-button[primary]'));
          flushAsynchronousOperations();
          assert.isTrue(fireActionStub.calledWith('/', deleteAction, false));
        });

        test('hides delete confirm on cancel', () => {
          element._handleDeleteTap();
          MockInteractions.tap(
              element.shadowRoot
                  .querySelector('#confirmDeleteDialog')
                  .$$('gr-button:not([primary])'));
          flushAsynchronousOperations();
          assert.isTrue(element.shadowRoot
              .querySelector('#confirmDeleteDialog').hidden);
          assert.isFalse(fireActionStub.called);
        });
      });

      suite('ignore change', () => {
        setup(done => {
          sandbox.stub(element, '_fireAction');

          const IgnoreAction = {
            __key: 'ignore',
            __type: 'change',
            __primary: false,
            method: 'PUT',
            label: 'Ignore',
            title: 'Working...',
            enabled: true,
          };

          element.actions = {
            ignore: IgnoreAction,
          };

          element.changeNum = '2';
          element.latestPatchNum = '2';

          element.reload().then(() => { flush(done); });
        });

        test('make sure the ignore button is not outside of the overflow menu',
            () => {
              assert.isNotOk(element.$$('[data-action-key="ignore"]'));
            });

        test('ignoring change', () => {
          assert.isOk(element.$.moreActions.$$('span[data-id="ignore-change"]'));
          element.setActionOverflow('change', 'ignore', false);
          flushAsynchronousOperations();
          assert.isOk(element.$$('[data-action-key="ignore"]'));
          assert.isNotOk(
              element.$.moreActions.$$('span[data-id="ignore-change"]'));
        });
      });

      suite('unignore change', () => {
        setup(done => {
          sandbox.stub(element, '_fireAction');

          const UnignoreAction = {
            __key: 'unignore',
            __type: 'change',
            __primary: false,
            method: 'PUT',
            label: 'Unignore',
            title: 'Working...',
            enabled: true,
          };

          element.actions = {
            unignore: UnignoreAction,
          };

          element.changeNum = '2';
          element.latestPatchNum = '2';

          element.reload().then(() => { flush(done); });
        });

        test('unignore button is not outside of the overflow menu', () => {
          assert.isNotOk(element.$$('[data-action-key="unignore"]'));
        });

        test('unignoring change', () => {
          assert.isOk(
              element.$.moreActions.$$('span[data-id="unignore-change"]'));
          element.setActionOverflow('change', 'unignore', false);
          flushAsynchronousOperations();
          assert.isOk(element.$$('[data-action-key="unignore"]'));
          assert.isNotOk(
              element.$.moreActions.$$('span[data-id="unignore-change"]'));
        });
      });

      suite('reviewed change', () => {
        setup(done => {
          sandbox.stub(element, '_fireAction');

          const ReviewedAction = {
            __key: 'reviewed',
            __type: 'change',
            __primary: false,
            method: 'PUT',
            label: 'Mark reviewed',
            title: 'Working...',
            enabled: true,
          };

          element.actions = {
            reviewed: ReviewedAction,
          };

          element.changeNum = '2';
          element.latestPatchNum = '2';

          element.reload().then(() => { flush(done); });
        });

        test('make sure the reviewed button is not outside of the overflow menu',
            () => {
              assert.isNotOk(element.$$('[data-action-key="reviewed"]'));
            });

        test('reviewing change', () => {
          assert.isOk(
              element.$.moreActions.$$('span[data-id="reviewed-change"]'));
          element.setActionOverflow('change', 'reviewed', false);
          flushAsynchronousOperations();
          assert.isOk(element.$$('[data-action-key="reviewed"]'));
          assert.isNotOk(
              element.$.moreActions.$$('span[data-id="reviewed-change"]'));
        });
      });

      suite('unreviewed change', () => {
        setup(done => {
          sandbox.stub(element, '_fireAction');

          const UnreviewedAction = {
            __key: 'unreviewed',
            __type: 'change',
            __primary: false,
            method: 'PUT',
            label: 'Mark unreviewed',
            title: 'Working...',
            enabled: true,
          };

          element.actions = {
            unreviewed: UnreviewedAction,
          };

          element.changeNum = '2';
          element.latestPatchNum = '2';

          element.reload().then(() => { flush(done); });
        });

        test('unreviewed button not outside of the overflow menu', () => {
          assert.isNotOk(element.$$('[data-action-key="unreviewed"]'));
        });

        test('unreviewed change', () => {
          assert.isOk(
              element.$.moreActions.$$('span[data-id="unreviewed-change"]'));
          element.setActionOverflow('change', 'unreviewed', false);
          flushAsynchronousOperations();
          assert.isOk(element.$$('[data-action-key="unreviewed"]'));
          assert.isNotOk(
              element.$.moreActions.$$('span[data-id="unreviewed-change"]'));
        });
      });

      suite('quick approve', () => {
        setup(() => {
          element.change = {
            current_revision: 'abc1234',
          };
          element.change = {
            current_revision: 'abc1234',
            labels: {
              foo: {
                values: {
                  '-1': '',
                  ' 0': '',
                  '+1': '',
                },
              },
            },
            permitted_labels: {
              foo: ['-1', ' 0', '+1'],
            },
          };
          flushAsynchronousOperations();
        });

        test('added when can approve', () => {
          const approveButton =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.isNotNull(approveButton);
        });

        test('hide quick approve', () => {
          const approveButton =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.isNotNull(approveButton);
          assert.isFalse(element._hideQuickApproveAction);

          // Assert approve button gets removed from list of buttons.
          element.hideQuickApproveAction();
          flushAsynchronousOperations();
          const approveButtonUpdated =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.isNull(approveButtonUpdated);
          assert.isTrue(element._hideQuickApproveAction);
        });

        test('is first in list of secondary actions', () => {
          const approveButton = element.$.secondaryActions
              .querySelector('gr-button');
          assert.equal(approveButton.getAttribute('data-label'), 'foo+1');
        });

        test('not added when already approved', () => {
          element.change = {
            current_revision: 'abc1234',
            labels: {
              foo: {
                approved: {},
                values: {},
              },
            },
            permitted_labels: {
              foo: [' 0', '+1'],
            },
          };
          flushAsynchronousOperations();
          const approveButton =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.isNull(approveButton);
        });

        test('not added when label not permitted', () => {
          element.change = {
            current_revision: 'abc1234',
            labels: {
              foo: {values: {}},
            },
            permitted_labels: {
              bar: [],
            },
          };
          flushAsynchronousOperations();
          const approveButton =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.isNull(approveButton);
        });

        test('approves when tapped', () => {
          const fireActionStub = sandbox.stub(element, '_fireAction');
          MockInteractions.tap(
              element.$$('gr-button[data-action-key=\'review\']'));
          flushAsynchronousOperations();
          assert.isTrue(fireActionStub.called);
          assert.isTrue(fireActionStub.calledWith('/review'));
          const payload = fireActionStub.lastCall.args[3];
          assert.deepEqual(payload.labels, {foo: '+1'});
        });

        test('not added when multiple labels are required', () => {
          element.change = {
            current_revision: 'abc1234',
            labels: {
              foo: {values: {}},
              bar: {values: {}},
            },
            permitted_labels: {
              foo: [' 0', '+1'],
              bar: [' 0', '+1', '+2'],
            },
          };
          flushAsynchronousOperations();
          const approveButton =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.isNull(approveButton);
        });

        test('button label for missing approval', () => {
          element.change = {
            current_revision: 'abc1234',
            labels: {
              foo: {
                values: {
                  ' 0': '',
                  '+1': '',
                },
              },
              bar: {approved: {}, values: {}},
            },
            permitted_labels: {
              foo: [' 0', '+1'],
              bar: [' 0', '+1', '+2'],
            },
          };
          flushAsynchronousOperations();
          const approveButton =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.equal(approveButton.getAttribute('data-label'), 'foo+1');
        });

        test('no quick approve if score is not maximal for a label', () => {
          element.change = {
            current_revision: 'abc1234',
            labels: {
              bar: {
                value: 1,
                values: {
                  ' 0': '',
                  '+1': '',
                  '+2': '',
                },
              },
            },
            permitted_labels: {
              bar: [' 0', '+1'],
            },
          };
          flushAsynchronousOperations();
          const approveButton =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.isNull(approveButton);
        });

        test('approving label with a non-max score', () => {
          element.change = {
            current_revision: 'abc1234',
            labels: {
              bar: {
                value: 1,
                values: {
                  ' 0': '',
                  '+1': '',
                  '+2': '',
                },
              },
            },
            permitted_labels: {
              bar: [' 0', '+1', '+2'],
            },
          };
          flushAsynchronousOperations();
          const approveButton =
              element.$$('gr-button[data-action-key=\'review\']');
          assert.equal(approveButton.getAttribute('data-label'), 'bar+2');
        });
      });

      test('adds download revision action', () => {
        const handler = sandbox.stub();
        element.addEventListener('download-tap', handler);
        assert.ok(element.revisionActions.download);
        element._handleDownloadTap();
        flushAsynchronousOperations();

        assert.isTrue(handler.called);
      });

      test('changing changeNum or patchNum does not reload', () => {
        const reloadStub = sandbox.stub(element, 'reload');
        element.changeNum = 123;
        assert.isFalse(reloadStub.called);
        element.latestPatchNum = 456;
        assert.isFalse(reloadStub.called);
      });

      test('_toSentenceCase', () => {
        assert.equal(element._toSentenceCase('blah blah'), 'Blah blah');
        assert.equal(element._toSentenceCase('BLAH BLAH'), 'Blah blah');
        assert.equal(element._toSentenceCase('b'), 'B');
        assert.equal(element._toSentenceCase(''), '');
        assert.equal(element._toSentenceCase('!@#$%^&*()'), '!@#$%^&*()');
      });

      suite('setActionOverflow', () => {
        test('move action from overflow', () => {
          assert.isNotOk(element.$$('[data-action-key="cherrypick"]'));
          assert.strictEqual(
              element.$.moreActions.items[0].id, 'cherrypick-revision');
          element.setActionOverflow('revision', 'cherrypick', false);
          flushAsynchronousOperations();
          assert.isOk(element.$$('[data-action-key="cherrypick"]'));
          assert.notEqual(
              element.$.moreActions.items[0].id, 'cherrypick-revision');
        });

        test('move action to overflow', () => {
          assert.isOk(element.$$('[data-action-key="submit"]'));
          element.setActionOverflow('revision', 'submit', true);
          flushAsynchronousOperations();
          assert.isNotOk(element.$$('[data-action-key="submit"]'));
          assert.strictEqual(
              element.$.moreActions.items[3].id, 'submit-revision');
        });

        suite('_waitForChangeReachable', () => {
          setup(() => {
            sandbox.stub(element, 'async', fn => fn());
          });

          const makeGetChange = numTries => () => {
            if (numTries === 1) {
              return Promise.resolve({_number: 123});
            } else {
              numTries--;
              return Promise.resolve(undefined);
            }
          };

          test('succeed', () => {
            sandbox.stub(element.$.restAPI, 'getChange', makeGetChange(5));
            return element._waitForChangeReachable(123).then(success => {
              assert.isTrue(success);
            });
          });

          test('fail', () => {
            sandbox.stub(element.$.restAPI, 'getChange', makeGetChange(6));
            return element._waitForChangeReachable(123).then(success => {
              assert.isFalse(success);
            });
          });
        });
      });

      suite('_send', () => {
        let cleanup;
        let payload;
        let onShowError;
        let onShowAlert;
        let getResponseObjectStub;

        setup(() => {
          cleanup = sinon.stub();
          element.changeNum = 42;
          element.latestPatchNum = 12;
          payload = {foo: 'bar'};

          onShowError = sinon.stub();
          element.addEventListener('show-error', onShowError);
          onShowAlert = sinon.stub();
          element.addEventListener('show-alert', onShowAlert);
        });

        suite('happy path', () => {
          let sendStub;
          setup(() => {
            sandbox.stub(element, 'fetchChangeUpdates')
                .returns(Promise.resolve({isLatest: true}));
            sendStub = sandbox.stub(element.$.restAPI, 'executeChangeAction')
                .returns(Promise.resolve({}));
            getResponseObjectStub = sandbox.stub(element.$.restAPI,
                'getResponseObject');
            sandbox.stub(Gerrit.Nav,
                'navigateToChange').returns(Promise.resolve(true));
          });

          test('change action', done => {
            element
                ._send('DELETE', payload, '/endpoint', false, cleanup)
                .then(() => {
                  assert.isFalse(onShowError.called);
                  assert.isTrue(cleanup.calledOnce);
                  assert.isTrue(sendStub.calledWith(42, 'DELETE', '/endpoint',
                      null, payload));
                  done();
                });
          });

          suite('show revert submission dialog', () => {
            setup(() => {
              element.change.submission_id = '199';
              element.change.current_revision = '2000';
              sandbox.stub(element.$.restAPI, 'getChanges')
                  .returns(Promise.resolve([
                    {change_id: '12345678901234', topic: 'T', subject: 'random'},
                    {change_id: '23456', topic: 'T', subject: 'a'.repeat(100)},
                  ]));
            });

            test('revert submission shows submissionId', done => {
              const expectedMsg = 'Revert submission 199' + '\n\n' +
                'Reason for revert: <INSERT REASONING HERE>' + '\n' +
                'Reverted Changes:' + '\n' +
                '1234567890: random' + '\n' +
                '23456: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...' +
                '\n';
              const modifiedMsg = expectedMsg + 'abcd';
              sandbox.stub(element.$.confirmRevertSubmissionDialog,
                  '_modifyRevertSubmissionMsg').returns(modifiedMsg);
              element.showRevertSubmissionDialog();
              flush(() => {
                const msg = element.$.confirmRevertSubmissionDialog.message;
                assert.equal(msg, modifiedMsg);
                done();
              });
            });
          });

          suite('single changes revert', () => {
            let navigateToSearchQueryStub;
            setup(() => {
              getResponseObjectStub
                  .returns(Promise.resolve({revert_changes: [
                    {change_id: 12345},
                  ]}));
              showActionDialogStub = sandbox.stub(element, '_showActionDialog');
              navigateToSearchQueryStub = sandbox.stub(Gerrit.Nav,
                  'navigateToSearchQuery');
            });

            test('revert submission single change', done => {
              element._send('POST', {message: 'Revert submission'},
                  '/revert_submission', false, cleanup).then(res => {
                element._handleResponse({__key: 'revert_submission'}, {}).
                    then(() => {
                      assert.isTrue(navigateToSearchQueryStub.called);
                      done();
                    });
              });
            });
          });

          suite('multiple changes revert', () => {
            let showActionDialogStub;
            let navigateToSearchQueryStub;
            setup(() => {
              getResponseObjectStub
                  .returns(Promise.resolve({revert_changes: [
                    {change_id: 12345, topic: 'T'},
                    {change_id: 23456, topic: 'T'},
                  ]}));
              showActionDialogStub = sandbox.stub(element, '_showActionDialog');
              navigateToSearchQueryStub = sandbox.stub(Gerrit.Nav,
                  'navigateToSearchQuery');
            });

            test('revert submission multiple change', done => {
              element._send('POST', {message: 'Revert submission'},
                  '/revert_submission', false, cleanup).then(res => {
                element._handleResponse({__key: 'revert_submission'}, {}).then(
                    () => {
                      assert.isFalse(showActionDialogStub.called);
                      assert.isTrue(navigateToSearchQueryStub.calledWith(
                          'topic: T'));
                      done();
                    });
              });
            });
          });

          test('revision action', done => {
            element
                ._send('DELETE', payload, '/endpoint', true, cleanup)
                .then(() => {
                  assert.isFalse(onShowError.called);
                  assert.isTrue(cleanup.calledOnce);
                  assert.isTrue(sendStub.calledWith(42, 'DELETE', '/endpoint',
                      12, payload));
                  done();
                });
          });
        });

        suite('failure modes', () => {
          test('non-latest', () => {
            sandbox.stub(element, 'fetchChangeUpdates')
                .returns(Promise.resolve({isLatest: false}));
            const sendStub = sandbox.stub(element.$.restAPI,
                'executeChangeAction');

            return element._send('DELETE', payload, '/endpoint', true, cleanup)
                .then(() => {
                  assert.isTrue(onShowAlert.calledOnce);
                  assert.isFalse(onShowError.called);
                  assert.isTrue(cleanup.calledOnce);
                  assert.isFalse(sendStub.called);
                });
          });

          test('send fails', () => {
            sandbox.stub(element, 'fetchChangeUpdates')
                .returns(Promise.resolve({isLatest: true}));
            const sendStub = sandbox.stub(element.$.restAPI,
                'executeChangeAction',
                (num, method, patchNum, endpoint, payload, onErr) => {
                  onErr();
                  return Promise.resolve(null);
                });
            const handleErrorStub = sandbox.stub(element, '_handleResponseError');

            return element._send('DELETE', payload, '/endpoint', true, cleanup)
                .then(() => {
                  assert.isFalse(onShowError.called);
                  assert.isTrue(cleanup.called);
                  assert.isTrue(sendStub.calledOnce);
                  assert.isTrue(handleErrorStub.called);
                });
          });
        });
      });

      test('_handleAction reports', () => {
        sandbox.stub(element, '_fireAction');
        const reportStub = sandbox.stub(element.$.reporting, 'reportInteraction');
        element._handleAction('type', 'key');
        assert.isTrue(reportStub.called);
        assert.equal(reportStub.lastCall.args[0], 'type-key');
      });
    });

    suite('getChangeRevisionActions returns only some actions', () => {
      let element;
      let sandbox;
      let changeRevisionActions;

      setup(() => {
        stub('gr-rest-api-interface', {
          getChangeRevisionActions() {
            return Promise.resolve(changeRevisionActions);
          },
          send(method, url, payload) {
            return Promise.reject(new Error('error'));
          },
          getProjectConfig() { return Promise.resolve({}); },
        });

        sandbox = sinon.sandbox.create();
        sandbox.stub(Gerrit, 'awaitPluginsLoaded').returns(Promise.resolve());

        element = fixture('basic');
        // getChangeRevisionActions is not called without
        // set the following properies
        element.change = {};
        element.changeNum = '42';
        element.latestPatchNum = '2';

        sandbox.stub(element.$.confirmCherrypick.$.restAPI,
            'getRepoBranches').returns(Promise.resolve([]));
        sandbox.stub(element.$.confirmMove.$.restAPI,
            'getRepoBranches').returns(Promise.resolve([]));
        return element.reload();
      });

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

      test('confirmSubmitDialog and confirmRebase properties are changed', () => {
        changeRevisionActions = {};
        element.reload();
        assert.strictEqual(element.$.confirmSubmitDialog.action, null);
        assert.strictEqual(element.$.confirmRebase.rebaseOnCurrent, null);
      });

      test('_updateRebaseAction sets _parentIsCurrent on no rebase', () => {
        const currentRevisionActions = {
          cherrypick: {
            enabled: true,
            label: 'Cherry Pick',
            method: 'POST',
            title: 'cherrypick',
          },
        };
        element._parentIsCurrent = undefined;
        element._updateRebaseAction(currentRevisionActions);
        assert.isTrue(element._parentIsCurrent);
      });

      test('_updateRebaseAction', () => {
        const currentRevisionActions = {
          cherrypick: {
            enabled: true,
            label: 'Cherry Pick',
            method: 'POST',
            title: 'cherrypick',
          },
          rebase: {
            enabled: true,
            label: 'Rebase',
            method: 'POST',
            title: 'Rebase onto tip of branch or parent change',
          },
        };
        element._parentIsCurrent = undefined;

        // Rebase enabled should always end up true.
        // When rebase is enabled initially, rebaseOnCurrent should be set to
        // true.
        assert.equal(element._updateRebaseAction(currentRevisionActions),
            currentRevisionActions);

        assert.isTrue(currentRevisionActions.rebase.enabled);
        assert.isTrue(currentRevisionActions.rebase.rebaseOnCurrent);
        assert.isFalse(element._parentIsCurrent);

        delete currentRevisionActions.rebase.enabled;

        // When rebase is not enabled initially, rebaseOnCurrent should be set to
        // false.
        assert.equal(element._updateRebaseAction(currentRevisionActions),
            currentRevisionActions);

        assert.isTrue(currentRevisionActions.rebase.enabled);
        assert.isFalse(currentRevisionActions.rebase.rebaseOnCurrent);
        assert.isTrue(element._parentIsCurrent);
      });
    });
  });
</script>