How to use the generator-jhipster/generators/generator-constants.CLIENT_WEBPACK_DIR function in generator-jhipster

const path = require('path');
const assert = require('yeoman-assert');
const helpers = require('yeoman-test');
const constants = require('generator-jhipster/generators/generator-constants');

const CLIENT_MAIN_SRC_DIR = constants.CLIENT_MAIN_SRC_DIR;
const SERVER_MAIN_RES_DIR = constants.SERVER_MAIN_RES_DIR;
const CLIENT_WEBPACK_DIR = constants.CLIENT_WEBPACK_DIR;

describe('Subgenerator languages of Vue.js JHipster blueprint', () => {
    context('Creates default i18n files', () => {
        before((done) => {
            helpers
                .run('generator-jhipster/generators/app')
                .withOptions({
                    'from-cli': true,
                    skipInstall: true,
                    blueprint: 'vuejs',
                    skipChecks: true
                })
                .withGenerators([
                    [
                        require('../generators/client/index.js'), // eslint-disable-line global-require
                        'jhipster-vuejs:client',

const path = require('path');
const assert = require('yeoman-assert');
const helpers = require('yeoman-test');
const constants = require('generator-jhipster/generators/generator-constants');
const blueprintPackagejs = require('../package.json');

const SERVER_MAIN_RES_DIR = constants.SERVER_MAIN_RES_DIR;
const CLIENT_MAIN_SRC_DIR = constants.CLIENT_MAIN_SRC_DIR;
const CLIENT_TEST_SRC_DIR = constants.CLIENT_TEST_SRC_DIR;
const CLIENT_SPEC_SRC_DIR = `${CLIENT_TEST_SRC_DIR}spec/`;
const CLIENT_WEBPACK_DIR = constants.CLIENT_WEBPACK_DIR;

const expectedFiles = {
    i18n: [
        `${CLIENT_MAIN_SRC_DIR}app/locale/translation.service.ts`,
        `${CLIENT_MAIN_SRC_DIR}app/shared/config/store/translation-store.ts`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/activate.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/audits.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/configuration.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/error.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/global.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/health.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/login.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/logs.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/home.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/metrics.json`,
        `${CLIENT_MAIN_SRC_DIR}i18n/en/password.json`,

* You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const jhipsterUtils = require('generator-jhipster/generators/utils');
const constants = require('generator-jhipster/generators/generator-constants');
const chalk = require('chalk');

const CLIENT_MAIN_SRC_DIR = constants.CLIENT_MAIN_SRC_DIR;
const CLIENT_WEBPACK_DIR = constants.CLIENT_WEBPACK_DIR;
const CLIENT_TEST_SRC_DIR = constants.CLIENT_TEST_SRC_DIR;

module.exports = {
    updateLanguagesInTranslationStore,
    updateI18nConfig,
    updateLanguagesInWebpack,
    replaceTranslation,
    addEntityToMenu,
    addEntityToRouterImport,
    addEntityToRouter,
    addEntityServiceToMainImport,
    addEntityServiceToMain,
    addPageToRouterImport,
    addPageToRouter,
    addPageServiceToMainImport,
    addPageServiceToMain,