RocketChat/Rocket.Chat

import fs from 'fs';

import { jest } from '@jest/globals';

describe('i18n', () => {
    let normalizeI18nInterpolationsTask;

    beforeEach(async () => {
        jest.spyOn(fs, 'readdirSync').mockReturnValue(['en.i18n.json']);
        jest.spyOn(fs, 'writeFileSync').mockImplementation(() => {});
        jest.spyOn(fs, 'readFileSync').mockImplementation(() => JSON.stringify({}));
        jest.spyOn(fs, 'existsSync').mockReturnValue(true);
        jest.spyOn(fs, 'rmdirSync').mockImplementation(() => {});
    });

    afterEach(() => {
        jest.resetModules();
    });

    describe('normalizeI18nInterpolationsTask', () => {
        it('should return the same object if there are no interpolations', async () => {
            const i18n = await import('./index.mjs');
            normalizeI18nInterpolationsTask = i18n.normalizeI18nInterpolationsTask;
            const fileContents = { test: 'test' };
            expect(normalizeI18nInterpolationsTask(fileContents, 'en')).toEqual(fileContents);
        });

        it('should return the replace the interpolation(__) keys to the desired one ({{}})', async () => {
            const i18n = await import('./index.mjs');
            normalizeI18nInterpolationsTask = i18n.normalizeI18nInterpolationsTask;
            const fileContents = {
                shouldChange: 'this is the __key__',
                shouldNotChange: 'normal one',
                multipleKeys: 'sentence __with__ multiple __keys__',
            };
            expect(normalizeI18nInterpolationsTask(fileContents, 'en')).toEqual({
                shouldChange: 'this is the {{key}}',
                shouldNotChange: 'normal one',
                multipleKeys: 'sentence {{with}} multiple {{keys}}',
            });
        });

        it('should write a txt file with the collected statistics', async () => {
            jest.spyOn(fs, 'readFileSync').mockImplementation(() =>
                JSON.stringify({
                    shouldChange: 'this is the __key__',
                    shouldNotChange: 'normal one',
                    multipleKeys: 'sentence __with__ multiple __keys__',
                    withSprintf: 'this is the %s',
                    withNullValues: null,
                    withI18NextComponentsArray: 'this is the <0>key</0> <1>key2</1>',
                }),
            );
            jest.spyOn(fs, 'writeFileSync').mockImplementation((path, content) => {
                if (path === './dist/stats.txt') {
                    expect(content.replace(/\s/g, '')).toEqual(
                        `Number of keys using __ and replaced by native i18next interpolation('{{' '}}') key: 2 keys
                        Number of keys with (explicit) null values: 1 keys
                        Number of keys using sprintf: 1 keys
                        Number of keys using i18next components array (<number></number>): 1 keys

                        (explicit) null values: [
                            {
                            "language": "en",
                            "key": "withNullValues"
                            }
                        ]
                        ==================================================
                        __ : [
                            {
                            "language": "en",
                            "key": "shouldChange"
                            },
                            {
                            "language": "en",
                            "key": "multipleKeys"
                            }
                        ]
                        ==================================================
                        sprintf : [
                            {\"language\":\"en\",\"key\":\"withSprintf\"}
                        ]
                        ==================================================
                        i18nextComponentsArray : [
                            {\"language\":\"en\",\"key\":\"withI18NextComponentsArray\"}
                        ]
`.replace(/\s/g, ''),
                    );
                }
            });
            await import('./index.mjs');
        });
    });
});