Add latest changes from gitlab-org/gitlab@master

18 files changed, 312 insertions, 7 deletions

diff --git a/app/assets/javascripts/issues/show/components/incidents/timeline_events_tab.vue b/app/assets/javascripts/issues/show/components/incidents/timeline_events_tab.vue
index 7c2a7878c58..090d5473d1d 100644
--- a/app/assets/javascripts/issues/show/components/incidents/timeline_events_tab.vue
+++ b/app/assets/javascripts/issues/show/components/incidents/timeline_events_tab.vue
@@ -3,10 +3,10 @@ import { GlButton, GlEmptyState, GlLoadingIcon, GlTab } from '@gitlab/ui';
 import { convertToGraphQLId } from '~/graphql_shared/utils';
 import { TYPE_ISSUE } from '~/graphql_shared/constants';
 import { fetchPolicies } from '~/lib/graphql';
+import notesEventHub from '~/notes/event_hub';
 import getTimelineEvents from './graphql/queries/get_timeline_events.query.graphql';
 import { displayAndLogError } from './utils';
 import { timelineTabI18n } from './constants';
-
 import CreateTimelineEvent from './create_timeline_event.vue';
 import IncidentTimelineEventsList from './timeline_events_list.vue';
 
@@ -56,7 +56,16 @@ export default {
       return !this.timelineEventLoading && !this.hasTimelineEvents;
     },
   },
+  mounted() {
+    notesEventHub.$on('comment-promoted-to-timeline-event', this.refreshTimelineEvents);
+  },
+  destroyed() {
+    notesEventHub.$off('comment-promoted-to-timeline-event', this.refreshTimelineEvents);
+  },
   methods: {
+    refreshTimelineEvents() {
+      this.$apollo.queries.timelineEvents.refetch();
+    },
     hideEventForm() {
       this.isEventFormVisible = false;
     },
diff --git a/app/assets/javascripts/notes/components/note_actions.vue b/app/assets/javascripts/notes/components/note_actions.vue
index c7f293a219a..9806f8e5dc2 100644
--- a/app/assets/javascripts/notes/components/note_actions.vue
+++ b/app/assets/javascripts/notes/components/note_actions.vue
@@ -1,6 +1,6 @@
 <script>
 import { GlTooltipDirective, GlIcon, GlButton, GlDropdownItem } from '@gitlab/ui';
-import { mapActions, mapGetters } from 'vuex';
+import { mapActions, mapGetters, mapState } from 'vuex';
 import Api from '~/api';
 import resolvedStatusMixin from '~/batch_comments/mixins/resolved_status';
 import createFlash from '~/flash';
@@ -11,6 +11,7 @@ import UserAccessRoleBadge from '~/vue_shared/components/user_access_role_badge.
 import glFeatureFlagsMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
 import { splitCamelCase } from '~/lib/utils/text_utility';
 import ReplyButton from './note_actions/reply_button.vue';
+import TimelineEventButton from './note_actions/timeline_event_button.vue';
 
 export default {
   i18n: {
@@ -23,6 +24,7 @@ export default {
   components: {
     GlIcon,
     ReplyButton,
+    TimelineEventButton,
     GlButton,
     GlDropdownItem,
     UserAccessRoleBadge,
@@ -133,7 +135,8 @@ export default {
     },
   },
   computed: {
-    ...mapGetters(['getUserDataByProp', 'getNoteableData']),
+    ...mapState(['isPromoteCommentToTimelineEventInProgress']),
+    ...mapGetters(['getUserDataByProp', 'getNoteableData', 'canUserAddIncidentTimelineEvents']),
     shouldShowActionsDropdown() {
       return this.currentUserId && (this.canEdit || this.canReportAsAbuse);
     },
@@ -199,7 +202,7 @@ export default {
     },
   },
   methods: {
-    ...mapActions(['toggleAwardRequest']),
+    ...mapActions(['toggleAwardRequest', 'promoteCommentToTimelineEvent']),
     onEdit() {
       this.$emit('handleEdit');
     },
@@ -292,6 +295,12 @@ export default {
       class="line-resolve-btn note-action-button"
       @click="onResolve"
     />
+    <timeline-event-button
+      v-if="canUserAddIncidentTimelineEvents"
+      :note-id="noteId"
+      :is-promotion-in-progress="isPromoteCommentToTimelineEventInProgress"
+      @click-promote-comment-to-event="promoteCommentToTimelineEvent"
+    />
     <emoji-picker
       v-if="canAwardEmoji"
       toggle-class="note-action-button note-emoji-button btn-icon btn-default-tertiary"
diff --git a/app/assets/javascripts/notes/components/note_actions/timeline_event_button.vue b/app/assets/javascripts/notes/components/note_actions/timeline_event_button.vue
new file mode 100644
index 00000000000..4dd0c968282
--- /dev/null
+++ b/app/assets/javascripts/notes/components/note_actions/timeline_event_button.vue
@@ -0,0 +1,49 @@
+<script>
+import { GlTooltipDirective, GlButton } from '@gitlab/ui';
+import { __ } from '~/locale';
+
+export default {
+  i18n: {
+    buttonText: __('Add comment to incident timeline'),
+    addError: __('Error promoting the note to timeline event: %{error}'),
+    addGenericError: __('Something went wrong while promoting the note to timeline event.'),
+  },
+  components: {
+    GlButton,
+  },
+  directives: {
+    GlTooltip: GlTooltipDirective,
+  },
+  props: {
+    noteId: {
+      type: [String, Number],
+      required: true,
+    },
+    isPromotionInProgress: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+  },
+  methods: {
+    handleButtonClick() {
+      this.$emit('click-promote-comment-to-event', {
+        noteId: this.noteId,
+        addError: this.$options.i18n.addError,
+        addGenericError: this.$options.i18n.addGenericError,
+      });
+    },
+  },
+};
+</script>
+<template>
+  <span v-gl-tooltip :title="$options.i18n.buttonText">
+    <gl-button
+      category="tertiary"
+      icon="clock"
+      :aria-label="$options.i18n.buttonText"
+      :disabled="isPromotionInProgress"
+      @click="handleButtonClick"
+    />
+  </span>
+</template>
diff --git a/app/assets/javascripts/notes/constants.js b/app/assets/javascripts/notes/constants.js
index a5f459c8910..88f438975f6 100644
--- a/app/assets/javascripts/notes/constants.js
+++ b/app/assets/javascripts/notes/constants.js
@@ -13,6 +13,7 @@ export const MERGED = 'merged';
 export const ISSUE_NOTEABLE_TYPE = 'Issue';
 export const EPIC_NOTEABLE_TYPE = 'Epic';
 export const MERGE_REQUEST_NOTEABLE_TYPE = 'MergeRequest';
+export const INCIDENT_NOTEABLE_TYPE = 'INCIDENT'; // TODO: check if value can be converted to `Incident`
 export const UNRESOLVE_NOTE_METHOD_NAME = 'delete';
 export const RESOLVE_NOTE_METHOD_NAME = 'post';
 export const DESCRIPTION_TYPE = 'changed the description';
@@ -31,6 +32,7 @@ export const NOTEABLE_TYPE_MAPPING = {
   Issue: ISSUE_NOTEABLE_TYPE,
   MergeRequest: MERGE_REQUEST_NOTEABLE_TYPE,
   Epic: EPIC_NOTEABLE_TYPE,
+  Incident: INCIDENT_NOTEABLE_TYPE,
 };
 
 export const DISCUSSION_FILTER_TYPES = {
diff --git a/app/assets/javascripts/notes/graphql/promote_timeline_event.mutation.graphql b/app/assets/javascripts/notes/graphql/promote_timeline_event.mutation.graphql
new file mode 100644
index 00000000000..c9df9cfd6d3
--- /dev/null
+++ b/app/assets/javascripts/notes/graphql/promote_timeline_event.mutation.graphql
@@ -0,0 +1,8 @@
+mutation PromoteTimelineEvent($input: TimelineEventPromoteFromNoteInput!) {
+  timelineEventPromoteFromNote(input: $input) {
+    timelineEvent {
+      id
+    }
+    errors
+  }
+}
diff --git a/app/assets/javascripts/notes/index.js b/app/assets/javascripts/notes/index.js
index 27e54a1ea69..054a5bd36e2 100644
--- a/app/assets/javascripts/notes/index.js
+++ b/app/assets/javascripts/notes/index.js
@@ -1,4 +1,5 @@
 import Vue from 'vue';
+import { parseBoolean } from '~/lib/utils/common_utils';
 import NotesApp from './components/notes_app.vue';
 import initDiscussionFilters from './discussion_filters';
 import { store } from './stores';
@@ -39,6 +40,7 @@ export default () => {
           username: parsedUserData.username,
           avatar_url: parsedUserData.avatar_path || parsedUserData.avatar_url,
           path: parsedUserData.path,
+          can_add_timeline_events: parseBoolean(notesDataset.canAddTimelineEvents),
         };
       }
 
diff --git a/app/assets/javascripts/notes/stores/actions.js b/app/assets/javascripts/notes/stores/actions.js
index 82417c9134b..fcef26d720c 100644
--- a/app/assets/javascripts/notes/stores/actions.js
+++ b/app/assets/javascripts/notes/stores/actions.js
@@ -6,6 +6,7 @@ import createFlash from '~/flash';
 import { EVENT_ISSUABLE_VUE_APP_CHANGE } from '~/issuable/constants';
 import axios from '~/lib/utils/axios_utils';
 import { __, sprintf } from '~/locale';
+import toast from '~/vue_shared/plugins/global_toast';
 import { confidentialWidget } from '~/sidebar/components/confidential/sidebar_confidentiality_widget.vue';
 import updateIssueLockMutation from '~/sidebar/components/lock/mutations/update_issue_lock.mutation.graphql';
 import updateMergeRequestLockMutation from '~/sidebar/components/lock/mutations/update_merge_request_lock.mutation.graphql';
@@ -18,6 +19,12 @@ import sidebarTimeTrackingEventHub from '~/sidebar/event_hub';
 import TaskList from '~/task_list';
 import mrWidgetEventHub from '~/vue_merge_request_widget/event_hub';
 import SidebarStore from '~/sidebar/stores/sidebar_store';
+import { convertToGraphQLId } from '~/graphql_shared/utils';
+import { TYPE_NOTE } from '~/graphql_shared/constants';
+import notesEventHub from '../event_hub';
+
+import promoteTimelineEvent from '../graphql/promote_timeline_event.mutation.graphql';
+
 import * as constants from '../constants';
 import * as types from './mutation_types';
 import * as utils from './utils';
@@ -226,6 +233,54 @@ export const updateOrCreateNotes = ({ commit, state, getters, dispatch }, notes)
   });
 };
 
+export const promoteCommentToTimelineEvent = (
+  { commit },
+  { noteId, addError, addGenericError },
+) => {
+  commit(types.SET_PROMOTE_COMMENT_TO_TIMELINE_PROGRESS, true); // Set loading state
+  return utils.gqClient
+    .mutate({
+      mutation: promoteTimelineEvent,
+      variables: {
+        input: {
+          noteId: convertToGraphQLId(TYPE_NOTE, noteId),
+        },
+      },
+    })
+    .then(({ data = {} }) => {
+      const errors = data.timelineEventPromoteFromNote?.errors;
+      if (errors.length) {
+        const errorMessage = sprintf(addError, {
+          error: errors.join('. '),
+        });
+        throw new Error(errorMessage);
+      } else {
+        notesEventHub.$emit('comment-promoted-to-timeline-event');
+        toast(__('Comment added to the timeline.'));
+      }
+    })
+    .catch((error) => {
+      const message = error.message || addGenericError;
+
+      let captureError = false;
+      let errorObj = null;
+
+      if (message === addGenericError) {
+        captureError = true;
+        errorObj = error;
+      }
+
+      createFlash({
+        message,
+        captureError,
+        error: errorObj,
+      });
+    })
+    .finally(() => {
+      commit(types.SET_PROMOTE_COMMENT_TO_TIMELINE_PROGRESS, false); // Revert loading state
+    });
+};
+
 export const replyToDiscussion = (
   { commit, state, getters, dispatch },
   { endpoint, data: reply },
diff --git a/app/assets/javascripts/notes/stores/getters.js b/app/assets/javascripts/notes/stores/getters.js
index 1fe82d96435..6876220f75c 100644
--- a/app/assets/javascripts/notes/stores/getters.js
+++ b/app/assets/javascripts/notes/stores/getters.js
@@ -93,6 +93,13 @@ export const getUserDataByProp = (state) => (prop) => state.userData && state.us
 
 export const descriptionVersions = (state) => state.descriptionVersions;
 
+export const canUserAddIncidentTimelineEvents = (state) => {
+  return (
+    state.userData.can_add_timeline_events &&
+    state.noteableData.type === constants.NOTEABLE_TYPE_MAPPING.Incident
+  );
+};
+
 export const notesById = (state) =>
   state.discussions.reduce((acc, note) => {
     note.notes.every((n) => Object.assign(acc, { [n.id]: n }));
diff --git a/app/assets/javascripts/notes/stores/modules/index.js b/app/assets/javascripts/notes/stores/modules/index.js
index f779aad5679..7ba1f470b05 100644
--- a/app/assets/javascripts/notes/stores/modules/index.js
+++ b/app/assets/javascripts/notes/stores/modules/index.js
@@ -30,6 +30,7 @@ export default () => ({
     isNotesFetched: false,
     isLoading: true,
     isLoadingDescriptionVersion: false,
+    isPromoteCommentToTimelineEventInProgress: false,
 
     // holds endpoints and permissions provided through haml
     notesData: {
diff --git a/app/assets/javascripts/notes/stores/mutation_types.js b/app/assets/javascripts/notes/stores/mutation_types.js
index e28a7bc5cdd..42df6bc0980 100644
--- a/app/assets/javascripts/notes/stores/mutation_types.js
+++ b/app/assets/javascripts/notes/stores/mutation_types.js
@@ -57,3 +57,6 @@ export const RECEIVE_DESCRIPTION_VERSION_ERROR = 'RECEIVE_DESCRIPTION_VERSION_ER
 export const REQUEST_DELETE_DESCRIPTION_VERSION = 'REQUEST_DELETE_DESCRIPTION_VERSION';
 export const RECEIVE_DELETE_DESCRIPTION_VERSION = 'RECEIVE_DELETE_DESCRIPTION_VERSION';
 export const RECEIVE_DELETE_DESCRIPTION_VERSION_ERROR = 'RECEIVE_DELETE_DESCRIPTION_VERSION_ERROR';
+
+// Incidents
+export const SET_PROMOTE_COMMENT_TO_TIMELINE_PROGRESS = 'SET_PROMOTE_COMMENT_TO_TIMELINE_PROGRESS';
diff --git a/app/assets/javascripts/notes/stores/mutations.js b/app/assets/javascripts/notes/stores/mutations.js
index 0823eacf1b7..83c15c12eac 100644
--- a/app/assets/javascripts/notes/stores/mutations.js
+++ b/app/assets/javascripts/notes/stores/mutations.js
@@ -425,4 +425,7 @@ export default {
   [types.SET_DONE_FETCHING_BATCH_DISCUSSIONS](state, value) {
     state.doneFetchingBatchDiscussions = value;
   },
+  [types.SET_PROMOTE_COMMENT_TO_TIMELINE_PROGRESS](state, value) {
+    state.isPromoteCommentToTimelineEventInProgress = value;
+  },
 };
diff --git a/app/assets/javascripts/vue_shared/components/source_viewer/constants.js b/app/assets/javascripts/vue_shared/components/source_viewer/constants.js
index cc930d67fa4..30f57f506a6 100644
--- a/app/assets/javascripts/vue_shared/components/source_viewer/constants.js
+++ b/app/assets/javascripts/vue_shared/components/source_viewer/constants.js
@@ -81,6 +81,7 @@ export const ROUGE_TO_HLJS_LANGUAGE_MAP = {
   protobuf: 'protobuf',
   puppet: 'puppet',
   python: 'python',
+  python3: 'python',
   q: 'q',
   qml: 'qml',
   r: 'r',
diff --git a/app/assets/javascripts/vue_shared/components/source_viewer/source_viewer.vue b/app/assets/javascripts/vue_shared/components/source_viewer/source_viewer.vue
index f471db24889..9c6c12eac7d 100644
--- a/app/assets/javascripts/vue_shared/components/source_viewer/source_viewer.vue
+++ b/app/assets/javascripts/vue_shared/components/source_viewer/source_viewer.vue
@@ -42,7 +42,7 @@ export default {
     return {
       languageDefinition: null,
       content: this.blob.rawTextBlob,
-      language: ROUGE_TO_HLJS_LANGUAGE_MAP[this.blob.language],
+      language: ROUGE_TO_HLJS_LANGUAGE_MAP[this.blob.language?.toLowerCase()],
       hljs: null,
       firstChunk: null,
       chunks: {},
@@ -62,7 +62,7 @@ export default {
       const supportedLanguages = Object.keys(languageLoader);
       return (
         !supportedLanguages.includes(this.language) &&
-        !supportedLanguages.includes(this.blob.language)
+        !supportedLanguages.includes(this.blob.language?.toLowerCase())
       );
     },
   },
diff --git a/app/views/projects/issues/_discussion.html.haml b/app/views/projects/issues/_discussion.html.haml
index 16b795ee3c9..11b652cc818 100644
--- a/app/views/projects/issues/_discussion.html.haml
+++ b/app/views/projects/issues/_discussion.html.haml
@@ -7,4 +7,5 @@
     noteable_data: serialize_issuable(@issue, with_blocking_issues: true),
     noteable_type: 'Issue',
     target_type: 'issue',
-    current_user_data: UserSerializer.new.represent(current_user, {only_path: true}, CurrentUserEntity).to_json } }
+    current_user_data: UserSerializer.new.represent(current_user, {only_path: true}, CurrentUserEntity).to_json,
+    can_add_timeline_events: "#{can?(current_user, :admin_incident_management_timeline_event, @issue)}" } }
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index e30601d3011..2244e016228 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -2227,6 +2227,9 @@ msgstr ""
 msgid "Add comment to design"
 msgstr ""
 
+msgid "Add comment to incident timeline"
+msgstr ""
+
 msgid "Add comment..."
 msgstr ""
 
@@ -9451,6 +9454,9 @@ msgstr ""
 msgid "Comment '%{label}' position"
 msgstr ""
 
+msgid "Comment added to the timeline."
+msgstr ""
+
 msgid "Comment form position"
 msgstr ""
 
@@ -15253,6 +15259,9 @@ msgstr ""
 msgid "Error parsing CSV file. Please make sure it has"
 msgstr ""
 
+msgid "Error promoting the note to timeline event: %{error}"
+msgstr ""
+
 msgid "Error rendering Markdown preview"
 msgstr ""
 
@@ -37002,6 +37011,9 @@ msgstr ""
 msgid "Something went wrong while promoting the issue to an epic. Please try again."
 msgstr ""
 
+msgid "Something went wrong while promoting the note to timeline event."
+msgstr ""
+
 msgid "Something went wrong while reopening a requirement."
 msgstr ""
 
diff --git a/spec/frontend/notes/components/note_actions/timeline_event_button_spec.js b/spec/frontend/notes/components/note_actions/timeline_event_button_spec.js
new file mode 100644
index 00000000000..658e844a9b1
--- /dev/null
+++ b/spec/frontend/notes/components/note_actions/timeline_event_button_spec.js
@@ -0,0 +1,35 @@
+import { GlButton } from '@gitlab/ui';
+import { shallowMount } from '@vue/test-utils';
+import TimelineEventButton from '~/notes/components/note_actions/timeline_event_button.vue';
+
+const emitData = {
+  noteId: '1',
+  addError: 'Error promoting the note to timeline event: %{error}',
+  addGenericError: 'Something went wrong while promoting the note to timeline event.',
+};
+
+describe('NoteTimelineEventButton', () => {
+  let wrapper;
+
+  beforeEach(() => {
+    wrapper = shallowMount(TimelineEventButton, {
+      propsData: {
+        noteId: '1',
+        isPromotionInProgress: true,
+      },
+    });
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  const findTimelineButton = () => wrapper.findComponent(GlButton);
+
+  it('emits click-promote-comment-to-event', async () => {
+    findTimelineButton().vm.$emit('click');
+
+    expect(wrapper.emitted('click-promote-comment-to-event')).toEqual([[emitData]]);
+    expect(findTimelineButton().props('disabled')).toEqual(true);
+  });
+});
diff --git a/spec/frontend/notes/stores/actions_spec.js b/spec/frontend/notes/stores/actions_spec.js
index 02b27eca196..989dd74b6d0 100644
--- a/spec/frontend/notes/stores/actions_spec.js
+++ b/spec/frontend/notes/stores/actions_spec.js
@@ -4,6 +4,7 @@ import testAction from 'helpers/vuex_action_helper';
 import { TEST_HOST } from 'spec/test_constants';
 import Api from '~/api';
 import createFlash from '~/flash';
+import toast from '~/vue_shared/plugins/global_toast';
 import { EVENT_ISSUABLE_VUE_APP_CHANGE } from '~/issuable/constants';
 import axios from '~/lib/utils/axios_utils';
 import * as notesConstants from '~/notes/constants';
@@ -14,7 +15,9 @@ import mutations from '~/notes/stores/mutations';
 import * as utils from '~/notes/stores/utils';
 import updateIssueLockMutation from '~/sidebar/components/lock/mutations/update_issue_lock.mutation.graphql';
 import updateMergeRequestLockMutation from '~/sidebar/components/lock/mutations/update_merge_request_lock.mutation.graphql';
+import promoteTimelineEvent from '~/notes/graphql/promote_timeline_event.mutation.graphql';
 import mrWidgetEventHub from '~/vue_merge_request_widget/event_hub';
+import notesEventHub from '~/notes/event_hub';
 import waitForPromises from 'helpers/wait_for_promises';
 import { resetStore } from '../helpers';
 import {
@@ -38,6 +41,8 @@ jest.mock('~/flash', () => {
   return flash;
 });
 
+jest.mock('~/vue_shared/plugins/global_toast');
+
 describe('Actions Notes Store', () => {
   let commit;
   let dispatch;
@@ -1324,6 +1329,102 @@ describe('Actions Notes Store', () => {
     });
   });
 
+  describe('promoteCommentToTimelineEvent', () => {
+    const actionArgs = {
+      noteId: '1',
+      addError: 'addError: Create error',
+      addGenericError: 'addGenericError',
+    };
+    const commitSpy = jest.fn();
+
+    describe('for successful request', () => {
+      const timelineEventSuccessResponse = {
+        data: {
+          timelineEventPromoteFromNote: {
+            timelineEvent: {
+              id: 'gid://gitlab/IncidentManagement::TimelineEvent/19',
+            },
+            errors: [],
+          },
+        },
+      };
+
+      beforeEach(() => {
+        jest.spyOn(utils.gqClient, 'mutate').mockResolvedValue(timelineEventSuccessResponse);
+      });
+
+      it('calls gqClient mutation with the correct values', () => {
+        actions.promoteCommentToTimelineEvent({ commit: () => {} }, actionArgs);
+
+        expect(utils.gqClient.mutate).toHaveBeenCalledTimes(1);
+        expect(utils.gqClient.mutate).toHaveBeenCalledWith({
+          mutation: promoteTimelineEvent,
+          variables: {
+            input: {
+              noteId: 'gid://gitlab/Note/1',
+            },
+          },
+        });
+      });
+
+      it('returns success response', () => {
+        jest.spyOn(notesEventHub, '$emit').mockImplementation(() => {});
+
+        return actions.promoteCommentToTimelineEvent({ commit: commitSpy }, actionArgs).then(() => {
+          expect(notesEventHub.$emit).toHaveBeenLastCalledWith(
+            'comment-promoted-to-timeline-event',
+          );
+          expect(toast).toHaveBeenCalledWith('Comment added to the timeline.');
+          expect(commitSpy).toHaveBeenCalledWith(
+            mutationTypes.SET_PROMOTE_COMMENT_TO_TIMELINE_PROGRESS,
+            false,
+          );
+        });
+      });
+    });
+
+    describe('for failing request', () => {
+      const errorResponse = {
+        data: {
+          timelineEventPromoteFromNote: {
+            timelineEvent: null,
+            errors: ['Create error'],
+          },
+        },
+      };
+
+      it.each`
+        mockReject | message                     | captureError | error
+        ${true}    | ${'addGenericError'}        | ${true}      | ${new Error()}
+        ${false}   | ${'addError: Create error'} | ${false}     | ${null}
+      `(
+        'should show an error when submission fails',
+        ({ mockReject, message, captureError, error }) => {
+          const expectedAlertArgs = {
+            captureError,
+            error,
+            message,
+          };
+          if (mockReject) {
+            jest.spyOn(utils.gqClient, 'mutate').mockRejectedValueOnce(new Error());
+          } else {
+            jest.spyOn(utils.gqClient, 'mutate').mockResolvedValue(errorResponse);
+          }
+
+          return actions
+            .promoteCommentToTimelineEvent({ commit: commitSpy }, actionArgs)
+            .then(() => {
+              expect(createFlash).toHaveBeenCalledWith(expectedAlertArgs);
+              expect(commitSpy).toHaveBeenCalledWith(
+                mutationTypes.SET_PROMOTE_COMMENT_TO_TIMELINE_PROGRESS,
+                false,
+              );
+            });
+        },
+      );
+    });
+  });
+
   describe('setFetchingState', () => {
     it('commits SET_NOTES_FETCHING_STATE', () => {
       return testAction(
diff --git a/spec/frontend/vue_shared/components/source_viewer/source_viewer_spec.js b/spec/frontend/vue_shared/components/source_viewer/source_viewer_spec.js
index 4fbc907a813..f2e3fa8d433 100644
--- a/spec/frontend/vue_shared/components/source_viewer/source_viewer_spec.js
+++ b/spec/frontend/vue_shared/components/source_viewer/source_viewer_spec.js
@@ -110,6 +110,13 @@ describe('Source Viewer component', () => {
       expect(hljs.registerLanguage).toHaveBeenCalledWith('json', languageDefinition.default);
     });
 
+    it('correctly maps languages starting with uppercase', async () => {
+      await createComponent({ language: 'Python3' });
+      const languageDefinition = await import(`highlight.js/lib/languages/python`);
+
+      expect(hljs.registerLanguage).toHaveBeenCalledWith('python', languageDefinition.default);
+    });
+
     it('highlights the first chunk', () => {
       expect(hljs.highlight).toHaveBeenCalledWith(chunk1.trim(), { language: mappedLanguage });
     });