Move to urlParamsToObject to url_utility.js and deprecate it

app/assets/javascripts/boards/stores/actions.js

@@ -18,7 +18,9 @@ import createBoardListMutation from 'ee_else_ce/boards/graphql/board_list_create
 import issueMoveListMutation from 'ee_else_ce/boards/graphql/issue_move_list.mutation.graphql';
 import { getIdFromGraphQLId } from '~/graphql_shared/utils';
 import createGqClient, { fetchPolicies } from '~/lib/graphql';
-import { convertObjectPropsToCamelCase, urlParamsToObject } from '~/lib/utils/common_utils';
+import { convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 import { s__ } from '~/locale';
 import {
   formatBoardLists,
@@ -74,6 +76,7 @@ export default {
   performSearch({ dispatch }) {
     dispatch(
       'setFilters',
+      // eslint-disable-next-line import/no-deprecated
       convertObjectPropsToCamelCase(urlParamsToObject(window.location.search)),
     );
 

app/assets/javascripts/boards/stores/boards_store.js

@@ -7,13 +7,9 @@ import BoardsStoreEE from 'ee_else_ce/boards/stores/boards_store_ee';
 import { getIdFromGraphQLId } from '~/graphql_shared/utils';
 import createDefaultClient from '~/lib/graphql';
 import axios from '~/lib/utils/axios_utils';
-import {
-  urlParamsToObject,
-  getUrlParamsArray,
-  parseBoolean,
-  convertObjectPropsToCamelCase,
-} from '~/lib/utils/common_utils';
-import { mergeUrlParams } from '~/lib/utils/url_utility';
+import { parseBoolean, convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { mergeUrlParams, urlParamsToObject, getUrlParamsArray } from '~/lib/utils/url_utility';
 import { ListType, flashAnimationDuration } from '../constants';
 import eventHub from '../eventhub';
 import ListAssignee from '../models/assignee';
@@ -601,6 +597,7 @@ const boardsStore = {
 
   getListIssues(list, emptyIssues = true) {
     const data = {
+      // eslint-disable-next-line import/no-deprecated
       ...urlParamsToObject(this.filter.path),
       page: list.page,
     };

app/assets/javascripts/filtered_search/filtered_search_manager.js

 import { last } from 'lodash';
 import recentSearchesStorageKeys from 'ee_else_ce/filtered_search/recent_searches_storage_keys';
 import IssuableFilteredSearchTokenKeys from '~/filtered_search/issuable_filtered_search_token_keys';
-import { getParameterByName, getUrlParamsArray } from '~/lib/utils/common_utils';
+import { getParameterByName } from '~/lib/utils/common_utils';
 import {
   ENTER_KEY_CODE,
   BACKSPACE_KEY_CODE,
@@ -12,7 +12,7 @@ import {
 import { __ } from '~/locale';
 import createFlash from '../flash';
 import { addClassIfElementExists } from '../lib/utils/dom_utils';
-import { visitUrl } from '../lib/utils/url_utility';
+import { visitUrl, getUrlParamsArray } from '../lib/utils/url_utility';
 import FilteredSearchContainer from './container';
 import DropdownUtils from './dropdown_utils';
 import eventHub from './event_hub';

app/assets/javascripts/issues_list/components/issuables_list_app.vue

@@ -8,13 +8,9 @@ import {
 import { toNumber, omit } from 'lodash';
 import createFlash from '~/flash';
 import axios from '~/lib/utils/axios_utils';
-import {
-  scrollToElement,
-  urlParamsToObject,
-  historyPushState,
-  getParameterByName,
-} from '~/lib/utils/common_utils';
-import { setUrlParams } from '~/lib/utils/url_utility';
+import { scrollToElement, historyPushState, getParameterByName } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { setUrlParams, urlParamsToObject } from '~/lib/utils/url_utility';
 import { __ } from '~/locale';
 import initManualOrdering from '~/manual_ordering';
 import FilteredSearchBar from '~/vue_shared/components/filtered_search_bar/filtered_search_bar_root.vue';
@@ -271,6 +267,7 @@ export default {
         });
     },
     getQueryObject() {
+      // eslint-disable-next-line import/no-deprecated
       return urlParamsToObject(window.location.search);
     },
     onPaginate(newPage) {

app/assets/javascripts/lib/utils/common_utils.js

@@ -162,53 +162,6 @@ export const parseUrlPathname = (url) => {
   return parsedUrl.pathname.charAt(0) === '/' ? parsedUrl.pathname : `/${parsedUrl.pathname}`;
 };
 
-const splitPath = (path = '') => path.replace(/^\?/, '').split('&');
-
-export const urlParamsToArray = (path = '') =>
-  splitPath(path)
-    .filter((param) => param.length > 0)
-    .map((param) => {
-      const split = param.split('=');
-      return [decodeURI(split[0]), split[1]].join('=');
-    });
-
-export const getUrlParamsArray = () => urlParamsToArray(window.location.search);
-
-/**
- * Accepts encoding string which includes query params being
- * sent to URL.
- *
- * @param {string} path Query param string
- *
- * @returns {object} Query params object containing key-value pairs
- *                   with both key and values decoded into plain string.
- */
-export const urlParamsToObject = (path = '') =>
-  splitPath(path).reduce((dataParam, filterParam) => {
-    if (filterParam === '') {
-      return dataParam;
-    }
-
-    const data = dataParam;
-    let [key, value] = filterParam.split('=');
-    key = /%\w+/g.test(key) ? decodeURIComponent(key) : key;
-    const isArray = key.includes('[]');
-    key = key.replace('[]', '');
-    value = decodeURIComponent(value.replace(/\+/g, ' '));
-
-    if (isArray) {
-      if (!data[key]) {
-        data[key] = [];
-      }
-
-      data[key].push(value);
-    } else {
-      data[key] = value;
-    }
-
-    return data;
-  }, {});
-
 export const isMetaKey = (e) => e.metaKey || e.ctrlKey || e.altKey || e.shiftKey;
 
 // Identify following special clicks

app/assets/javascripts/lib/utils/url_utility.js

@@ -409,6 +409,55 @@ export function getWebSocketUrl(path) {
   return `${getWebSocketProtocol()}//${joinPaths(window.location.host, path)}`;
 }
 
+const splitPath = (path = '') => path.replace(/^\?/, '').split('&');
+
+export const urlParamsToArray = (path = '') =>
+  splitPath(path)
+    .filter((param) => param.length > 0)
+    .map((param) => {
+      const split = param.split('=');
+      return [decodeURI(split[0]), split[1]].join('=');
+    });
+
+export const getUrlParamsArray = () => urlParamsToArray(window.location.search);
+
+/**
+ * Accepts encoding string which includes query params being
+ * sent to URL.
+ *
+ * @param {string} path Query param string
+ *
+ * @returns {object} Query params object containing key-value pairs
+ *                   with both key and values decoded into plain string.
+ *
+ * @deprecated Please use `queryToObject(query, { gatherArrays: true });` instead. See https://gitlab.com/gitlab-org/gitlab/-/issues/328845
+ */
+export const urlParamsToObject = (path = '') =>
+  splitPath(path).reduce((dataParam, filterParam) => {
+    if (filterParam === '') {
+      return dataParam;
+    }
+
+    const data = dataParam;
+    let [key, value] = filterParam.split('=');
+    key = /%\w+/g.test(key) ? decodeURIComponent(key) : key;
+    const isArray = key.includes('[]');
+    key = key.replace('[]', '');
+    value = decodeURIComponent(value.replace(/\+/g, ' '));
+
+    if (isArray) {
+      if (!data[key]) {
+        data[key] = [];
+      }
+
+      data[key].push(value);
+    } else {
+      data[key] = value;
+    }
+
+    return data;
+  }, {});
+
 /**
  * Convert search query into an object
  *

app/assets/javascripts/members/components/filter_sort/members_filtered_search_bar.vue

 <script>
 import { GlFilteredSearchToken } from '@gitlab/ui';
 import { mapState } from 'vuex';
-import { getParameterByName, urlParamsToObject } from '~/lib/utils/common_utils';
-import { setUrlParams } from '~/lib/utils/url_utility';
+import { getParameterByName } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { setUrlParams, urlParamsToObject } from '~/lib/utils/url_utility';
 import { s__ } from '~/locale';
 import { SEARCH_TOKEN_TYPE, SORT_PARAM } from '~/members/constants';
 import { OPERATOR_IS_ONLY } from '~/vue_shared/components/filtered_search_bar/constants';
@@ -64,6 +65,7 @@ export default {
     },
   },
   created() {
+    // eslint-disable-next-line import/no-deprecated
     const query = urlParamsToObject(window.location.search);
 
     const tokens = this.tokens

app/assets/javascripts/members/components/members_tabs.vue

 <script>
 import { GlTabs, GlTab, GlBadge } from '@gitlab/ui';
 import { mapState } from 'vuex';
-import { urlParamsToObject } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 import { __ } from '~/locale';
 import { MEMBER_TYPES } from '../constants';
 import MembersApp from './app.vue';
@@ -55,6 +56,7 @@ export default {
       },
     }),
     urlParams() {
+      // eslint-disable-next-line import/no-deprecated
       return Object.keys(urlParamsToObject(window.location.search));
     },
     activeTabIndexCalculatedFromUrlParams() {

app/assets/javascripts/projects/commits/components/author_select.vue

@@ -9,8 +9,8 @@ import {
 } from '@gitlab/ui';
 import { debounce } from 'lodash';
 import { mapState, mapActions } from 'vuex';
-import { urlParamsToObject } from '~/lib/utils/common_utils';
-import { redirectTo } from '~/lib/utils/url_utility';
+// eslint-disable-next-line import/no-deprecated
+import { redirectTo, urlParamsToObject } from '~/lib/utils/url_utility';
 import { __ } from '~/locale';
 
 const tooltipMessage = __('Searching by both author and message is currently not supported.');
@@ -52,6 +52,7 @@ export default {
   },
   mounted() {
     this.fetchAuthors();
+    // eslint-disable-next-line import/no-deprecated
     const params = urlParamsToObject(window.location.search);
     const { search: searchParam, author: authorParam } = params;
     const commitsSearchInput = this.projectCommitsEl.querySelector('#commits-search');

ee/app/assets/javascripts/analytics/code_review_analytics/filtered_search_code_review_analytics.js

 import FilteredSearchManager from 'ee_else_ce/filtered_search/filtered_search_manager';
-import { urlParamsToObject } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 import { __ } from '~/locale';
 import CodeReviewAnalyticsFilteredSearchTokenKeys from './code_review_analytics_filtered_search_token_keys';
 import store from './store';
@@ -24,6 +25,7 @@ export default class FilteredSearchCodeReviewAnalytics extends FilteredSearchMan
    * Updates filters in code review analytics store
    */
   updateObject = (path) => {
+    // eslint-disable-next-line import/no-deprecated
     const filters = urlParamsToObject(path);
     const { selectedLabels: selectedLabelList, selectedMilestone } = transformFilters(filters);
 

ee/app/assets/javascripts/analytics/productivity_analytics/filtered_search_productivity_analytics.js

 import FilteredSearchManager from 'ee_else_ce/filtered_search/filtered_search_manager';
-import { urlParamsToObject } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 import { __ } from '~/locale';
 import ProductivityAnalyticsFilteredSearchTokenKeys from './productivity_analytics_filtered_search_token_keys';
 import store from './store';
@@ -23,6 +24,7 @@ export default class FilteredSearchProductivityAnalytics extends FilteredSearchM
    * Updates filters in productivity analytics store
    */
   updateObject = (path) => {
+    // eslint-disable-next-line import/no-deprecated
     const filters = urlParamsToObject(path);
     store.dispatch('filters/setFilters', filters);
   };

ee/app/assets/javascripts/boards/boards_util.js

 import { FiltersInfo as FiltersInfoCE } from '~/boards/boards_util';
 import { getIdFromGraphQLId } from '~/graphql_shared/utils';
-import { urlParamsToObject } from '~/lib/utils/common_utils';
-import { objectToQuery } from '~/lib/utils/url_utility';
+// eslint-disable-next-line import/no-deprecated
+import { objectToQuery, urlParamsToObject } from '~/lib/utils/url_utility';
 import {
   EPIC_LANE_BASE_HEIGHT,
   IterationFilterType,
@@ -93,6 +93,7 @@ export function formatEpicListsPageInfo(lists) {
 
 export function transformBoardConfig(boardConfig) {
   const updatedBoardConfig = {};
+  // eslint-disable-next-line import/no-deprecated
   const passedFilterParams = urlParamsToObject(window.location.search);
   const updateScopeObject = (key, value = '') => {
     if (value === null || value === '') return;

ee/app/assets/javascripts/boards/epic_filtered_search.js

 import Vue from 'vue';
 import EpicFilteredSearch from 'ee_component/boards/components/epic_filtered_search.vue';
 import store from '~/boards/stores';
-import { urlParamsToObject, convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+import { convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 
 export default (apolloProvider) => {
   const el = document.getElementById('js-board-filtered-search');
+  // eslint-disable-next-line import/no-deprecated
   const rawFilterParams = urlParamsToObject(window.location.search);
   const initialFilterParams = {
     ...convertObjectPropsToCamelCase(rawFilterParams, {}),

ee/app/assets/javascripts/boards/stores/actions.js

@@ -15,12 +15,9 @@ import boardsStore from '~/boards/stores/boards_store';
 import * as typesCE from '~/boards/stores/mutation_types';
 import { getIdFromGraphQLId } from '~/graphql_shared/utils';
 import axios from '~/lib/utils/axios_utils';
-import {
-  historyPushState,
-  convertObjectPropsToCamelCase,
-  urlParamsToObject,
-} from '~/lib/utils/common_utils';
-import { mergeUrlParams, removeParams } from '~/lib/utils/url_utility';
+import { historyPushState, convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { mergeUrlParams, removeParams, urlParamsToObject } from '~/lib/utils/url_utility';
 import { s__ } from '~/locale';
 import {
   fullEpicId,
@@ -123,6 +120,7 @@ export default {
   performSearch({ dispatch, getters }) {
     dispatch(
       'setFilters',
+      // eslint-disable-next-line import/no-deprecated
       convertObjectPropsToCamelCase(urlParamsToObject(window.location.search)),
     );
 

ee/app/assets/javascripts/epics_list/epics_list_bundle.js

@@ -3,11 +3,9 @@ import VueApollo from 'vue-apollo';
 
 import { IssuableStates } from '~/issuable_list/constants';
 import createDefaultClient from '~/lib/graphql';
-import {
-  urlParamsToObject,
-  parseBoolean,
-  convertObjectPropsToCamelCase,
-} from '~/lib/utils/common_utils';
+import { parseBoolean, convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 
 import EpicsListApp from './components/epics_list_root.vue';
 
@@ -43,6 +41,7 @@ export default function initEpicsList({ mountPointSelector }) {
     emptyStatePath,
   } = mountPointEl.dataset;
 
+  // eslint-disable-next-line import/no-deprecated
   const rawFilterParams = urlParamsToObject(window.location.search);
   const initialFilterParams = {
     ...convertObjectPropsToCamelCase(rawFilterParams, {

ee/app/assets/javascripts/integrations/jira/issues_list/jira_issues_list_bundle.js

 import Vue from 'vue';
 
 import { IssuableStates } from '~/issuable_list/constants';
-import { urlParamsToObject, convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+import { convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 
 import JiraIssuesListApp from './components/jira_issues_list_root.vue';
 import apolloProvider from './graphql';
@@ -20,6 +22,7 @@ export default function initJiraIssuesList({ mountPointSelector }) {
   } = mountPointEl.dataset;
 
   const initialFilterParams = Object.assign(
+    // eslint-disable-next-line import/no-deprecated
     convertObjectPropsToCamelCase(urlParamsToObject(window.location.search.substring(1)), {
       dropKeys: ['scope', 'utf8', 'state', 'sort'], // These keys are unsupported/unnecessary
     }),

ee/app/assets/javascripts/issues_analytics/filtered_search_issues_analytics.js

 import FilteredSearchManager from 'ee_else_ce/filtered_search/filtered_search_manager';
 import IssuableFilteredSearchTokenKeys from 'ee_else_ce/filtered_search/issuable_filtered_search_token_keys';
 import FilteredSearchTokenKeys from '~/filtered_search/filtered_search_token_keys';
-import { historyPushState, urlParamsToObject } from '~/lib/utils/common_utils';
+import { historyPushState } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 import { __ } from '~/locale';
 import issueAnalyticsStore from './stores';
 
@@ -35,6 +37,7 @@ export default class FilteredSearchIssueAnalytics extends FilteredSearchManager
   updateObject = (path) => {
     historyPushState(path);
 
+    // eslint-disable-next-line import/no-deprecated
     const filters = urlParamsToObject(path);
     issueAnalyticsStore.dispatch('issueAnalytics/setFilters', filters);
   };

ee/app/assets/javascripts/issues_analytics/index.js

 import Vue from 'vue';
-import { urlParamsToObject } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 import IssuesAnalytics from './components/issues_analytics.vue';
 import store from './stores';
 
@@ -18,6 +19,7 @@ export default () => {
   } = el.dataset;
 
   // Set default filters from URL
+  // eslint-disable-next-line import/no-deprecated
   const filters = urlParamsToObject(window.location.search);
   store.dispatch('issueAnalytics/setFilters', filters);
 

ee/app/assets/javascripts/requirements/components/requirements_root.vue

@@ -3,8 +3,8 @@ import { GlPagination, GlAlert } from '@gitlab/ui';
 import Api from '~/api';
 import createFlash, { FLASH_TYPES } from '~/flash';
 import axios from '~/lib/utils/axios_utils';
-import { urlParamsToObject } from '~/lib/utils/common_utils';
-import { updateHistory, setUrlParams } from '~/lib/utils/url_utility';
+// eslint-disable-next-line import/no-deprecated
+import { updateHistory, setUrlParams, urlParamsToObject } from '~/lib/utils/url_utility';
 import { __, sprintf } from '~/locale';
 import Tracking from '~/tracking';
 
@@ -331,6 +331,7 @@ export default {
      */
     updateUrl() {
       const { href, search } = window.location;
+      // eslint-disable-next-line import/no-deprecated
       const queryParams = urlParamsToObject(search);
       const {
         filterBy,

ee/app/assets/javascripts/roadmap/roadmap_bundle.js

 import Vue from 'vue';
 import { mapActions } from 'vuex';
 
-import {
-  parseBoolean,
-  urlParamsToObject,
-  convertObjectPropsToCamelCase,
-} from '~/lib/utils/common_utils';
-import { visitUrl, mergeUrlParams } from '~/lib/utils/url_utility';
+import { parseBoolean, convertObjectPropsToCamelCase } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { visitUrl, mergeUrlParams, urlParamsToObject } from '~/lib/utils/url_utility';
 import Translate from '~/vue_shared/translate';
 
 import EpicItem from './components/epic_item.vue';
@@ -67,6 +64,7 @@ export default () => {
         supportedPresetTypes.indexOf(dataset.presetType) > -1
           ? dataset.presetType
           : PRESET_TYPES.MONTHS;
+      // eslint-disable-next-line import/no-deprecated
       const rawFilterParams = urlParamsToObject(window.location.search.substring(1));
       const filterParams = {
         ...convertObjectPropsToCamelCase(rawFilterParams, {

ee/app/assets/javascripts/test_case_list/components/test_case_list_root.vue

@@ -5,8 +5,8 @@ import Api from '~/api';
 import createFlash from '~/flash';
 import IssuableList from '~/issuable_list/components/issuable_list_root.vue';
 import axios from '~/lib/utils/axios_utils';
-import { urlParamsToObject } from '~/lib/utils/common_utils';
-import { updateHistory, setUrlParams } from '~/lib/utils/url_utility';
+// eslint-disable-next-line import/no-deprecated
+import { updateHistory, setUrlParams, urlParamsToObject } from '~/lib/utils/url_utility';
 
 import { s__, __ } from '~/locale';
 import { OPERATOR_IS_ONLY } from '~/vue_shared/components/filtered_search_bar/constants';
@@ -143,6 +143,7 @@ export default {
   },
   methods: {
     updateUrl() {
+      // eslint-disable-next-line import/no-deprecated
       const queryParams = urlParamsToObject(window.location.search);
       const { authorUsername, labelName, search } = this.filterParams || {};
       const { currentState, sortedBy, currentPage, prevPageCursor, nextPageCursor } = this;

ee/app/assets/javascripts/test_case_list/test_case_list_bundle.js

@@ -2,11 +2,9 @@ import Vue from 'vue';
 import VueApollo from 'vue-apollo';
 
 import createDefaultClient from '~/lib/graphql';
-import {
-  urlParamsToObject,
-  convertObjectPropsToCamelCase,
-  parseBoolean,
-} from '~/lib/utils/common_utils';
+import { convertObjectPropsToCamelCase, parseBoolean } from '~/lib/utils/common_utils';
+// eslint-disable-next-line import/no-deprecated
+import { urlParamsToObject } from '~/lib/utils/url_utility';
 
 import TestCaseListApp from './components/test_case_list_root.vue';
 
@@ -35,6 +33,7 @@ const initTestCaseList = ({ mountPointSelector }) => {
   } = mountPointEl.dataset;
 
   const initialFilterParams = Object.assign(
+    // eslint-disable-next-line import/no-deprecated
     convertObjectPropsToCamelCase(urlParamsToObject(window.location.search.substring(1)), {
       dropKeys: ['scope', 'utf8', 'state', 'sort'], // These keys are unsupported/unnecessary
     }),

spec/frontend/lib/utils/common_utils_spec.js

@@ -26,42 +26,6 @@ describe('common_utils', () => {
     });
   });
 
-  describe('urlParamsToArray', () => {
-    it('returns empty array for empty querystring', () => {
-      expect(commonUtils.urlParamsToArray('')).toEqual([]);
-    });
-
-    it('should decode params', () => {
-      expect(commonUtils.urlParamsToArray('?label_name%5B%5D=test')[0]).toBe('label_name[]=test');
-    });
-
-    it('should remove the question mark from the search params', () => {
-      const paramsArray = commonUtils.urlParamsToArray('?test=thing');
-
-      expect(paramsArray[0][0]).not.toBe('?');
-    });
-  });
-
-  describe('urlParamsToObject', () => {
-    it('parses path for label with trailing +', () => {
-      expect(commonUtils.urlParamsToObject('label_name[]=label%2B', {})).toEqual({
-        label_name: ['label+'],
-      });
-    });
-
-    it('parses path for milestone with trailing +', () => {
-      expect(commonUtils.urlParamsToObject('milestone_title=A%2B', {})).toEqual({
-        milestone_title: 'A+',
-      });
-    });
-
-    it('parses path for search terms with spaces', () => {
-      expect(commonUtils.urlParamsToObject('search=two+words', {})).toEqual({
-        search: 'two words',
-      });
-    });
-  });
-
   describe('handleLocationHash', () => {
     beforeEach(() => {
       jest.spyOn(window.document, 'getElementById');

spec/frontend/lib/utils/url_utility_spec.js

@@ -650,6 +650,45 @@ describe('URL utility', () => {
     });
   });
 
+  describe('urlParamsToArray', () => {
+    it('returns empty array for empty querystring', () => {
+      expect(urlUtils.urlParamsToArray('')).toEqual([]);
+    });
+
+    it('should decode params', () => {
+      expect(urlUtils.urlParamsToArray('?label_name%5B%5D=test')[0]).toBe('label_name[]=test');
+    });
+
+    it('should remove the question mark from the search params', () => {
+      const paramsArray = urlUtils.urlParamsToArray('?test=thing');
+
+      expect(paramsArray[0][0]).not.toBe('?');
+    });
+  });
+
+  describe('urlParamsToObject', () => {
+    it('parses path for label with trailing +', () => {
+      // eslint-disable-next-line import/no-deprecated
+      expect(urlUtils.urlParamsToObject('label_name[]=label%2B', {})).toEqual({
+        label_name: ['label+'],
+      });
+    });
+
+    it('parses path for milestone with trailing +', () => {
+      // eslint-disable-next-line import/no-deprecated
+      expect(urlUtils.urlParamsToObject('milestone_title=A%2B', {})).toEqual({
+        milestone_title: 'A+',
+      });
+    });
+
+    it('parses path for search terms with spaces', () => {
+      // eslint-disable-next-line import/no-deprecated
+      expect(urlUtils.urlParamsToObject('search=two+words', {})).toEqual({
+        search: 'two words',
+      });
+    });
+  });
+
   describe('queryToObject', () => {
     it.each`
       case                                                                      | query                             | options                                             | result