246 lines
9.1 KiB
TypeScript
246 lines
9.1 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from 'react';
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import {
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_t,
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_tDom,
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TranslatedString,
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setLanguage,
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setMissingEntryGenerator,
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substitute,
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} from '../../src/languageHandler';
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import { stubClient } from '../test-utils';
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describe('languageHandler', function() {
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// See setupLanguage.ts for how we are stubbing out translations to provide fixture data for these tests
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const basicString = 'Rooms';
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const selfClosingTagSub = 'Accept <policyLink /> to continue:';
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const textInTagSub = '<a>Upgrade</a> to your own domain';
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const plurals = 'and %(count)s others...';
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const variableSub = 'You are now ignoring %(userId)s';
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type TestCase = [string, string, Record<string, unknown>, Record<string, unknown>, TranslatedString];
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const testCasesEn: TestCase[] = [
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// description of the test case, translationString, variables, tags, expected result
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['translates a basic string', basicString, {}, undefined, 'Rooms'],
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[
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'handles plurals when count is 0',
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plurals,
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{ count: 0 },
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undefined,
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'and 0 others...',
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],
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[
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'handles plurals when count is 1',
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plurals,
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{ count: 1 },
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undefined,
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'and one other...',
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],
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[
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'handles plurals when count is not 1',
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plurals,
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{ count: 2 },
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undefined,
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'and 2 others...',
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],
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[
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'handles simple variable substitution',
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variableSub,
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{ userId: 'foo' },
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undefined,
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'You are now ignoring foo',
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],
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[
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'handles simple tag substitution',
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selfClosingTagSub,
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{},
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{ 'policyLink': () => 'foo' },
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'Accept foo to continue:',
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],
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['handles text in tags', textInTagSub, {}, { 'a': (sub) => `x${sub}x` }, 'xUpgradex to your own domain'],
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[
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'handles variable substitution with React function component',
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variableSub,
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{ userId: () => <i>foo</i> },
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undefined,
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// eslint-disable-next-line react/jsx-key
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<span>You are now ignoring <i>foo</i></span>,
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],
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[
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'handles variable substitution with react node',
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variableSub,
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{ userId: <i>foo</i> },
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undefined,
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// eslint-disable-next-line react/jsx-key
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<span>You are now ignoring <i>foo</i></span>,
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],
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[
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'handles tag substitution with React function component',
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selfClosingTagSub,
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{},
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{ 'policyLink': () => <i>foo</i> },
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// eslint-disable-next-line react/jsx-key
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<span>Accept <i>foo</i> to continue:</span>,
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],
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];
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let oldNodeEnv;
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beforeAll(() => {
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oldNodeEnv = process.env.NODE_ENV;
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process.env.NODE_ENV = "test";
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});
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afterAll(() => {
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process.env.NODE_ENV = oldNodeEnv;
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});
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describe('when translations exist in language', () => {
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beforeEach(function(done) {
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stubClient();
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setLanguage('en').then(done);
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setMissingEntryGenerator(key => key.split("|", 2)[1]);
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});
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it('translates a string to german', function(done) {
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setLanguage('de').then(function() {
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const translated = _t(basicString);
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expect(translated).toBe('Räume');
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}).then(done);
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});
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it.each(testCasesEn)("%s", (_d, translationString, variables, tags, result) => {
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expect(_t(translationString, variables, tags)).toEqual(result);
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});
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it('replacements in the wrong order', function() {
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const text = '%(var1)s %(var2)s';
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expect(_t(text, { var2: 'val2', var1: 'val1' })).toBe('val1 val2');
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});
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it('multiple replacements of the same variable', function() {
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const text = '%(var1)s %(var1)s';
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expect(substitute(text, { var1: 'val1' })).toBe('val1 val1');
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});
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it('multiple replacements of the same tag', function() {
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const text = '<a>Click here</a> to join the discussion! <a>or here</a>';
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expect(substitute(text, {}, { 'a': (sub) => `x${sub}x` }))
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.toBe('xClick herex to join the discussion! xor herex');
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});
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});
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describe('for a non-en language', () => {
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beforeEach(() => {
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stubClient();
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setLanguage('lv');
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// counterpart doesnt expose any way to restore default config
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// missingEntryGenerator is mocked in the root setup file
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// reset to default here
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const counterpartDefaultMissingEntryGen =
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function(key) { return 'missing translation: ' + key; };
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setMissingEntryGenerator(counterpartDefaultMissingEntryGen);
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});
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// mocked lv has only `"Uploading %(filename)s and %(count)s others|one"`
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const lvExistingPlural = 'Uploading %(filename)s and %(count)s others';
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const lvNonExistingPlural = '%(spaceName)s and %(count)s others';
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describe('pluralization', () => {
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const pluralCases = [
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[
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'falls back when plural string exists but not for for count',
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lvExistingPlural,
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{ count: 2, filename: 'test.txt' },
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undefined,
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'Uploading test.txt and 2 others',
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],
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[
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'falls back when plural string does not exists at all',
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lvNonExistingPlural,
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{ count: 2, spaceName: 'test' },
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undefined,
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'test and 2 others',
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],
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] as TestCase[];
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describe('_t', () => {
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it('translated correctly when plural string exists for count', () => {
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expect(_t(
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lvExistingPlural,
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{ count: 1, filename: 'test.txt' }, undefined)).toEqual('Качване на test.txt и 1 друг');
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});
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it.each(pluralCases)(
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"%s",
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(_d, translationString, variables, tags, result) => {
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expect(_t(translationString, variables, tags)).toEqual(result);
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},
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);
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});
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describe('_tDom()', () => {
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it('translated correctly when plural string exists for count', () => {
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expect(_tDom(
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lvExistingPlural,
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{ count: 1, filename: 'test.txt' }, undefined)).toEqual('Качване на test.txt и 1 друг');
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});
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it.each(pluralCases)(
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"%s and translates with fallback locale, attributes fallback locale",
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(_d, translationString, variables, tags, result) => {
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expect(_tDom(translationString, variables, tags)).toEqual(<span lang="en">{ result }</span>);
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},
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);
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});
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});
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describe('when a translation string does not exist in active language', () => {
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describe('_t', () => {
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it.each(testCasesEn)(
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"%s and translates with fallback locale",
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(_d, translationString, variables, tags, result) => {
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expect(_t(translationString, variables, tags)).toEqual(result);
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},
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);
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});
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describe('_tDom()', () => {
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it.each(testCasesEn)(
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"%s and translates with fallback locale, attributes fallback locale",
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(_d, translationString, variables, tags, result) => {
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expect(_tDom(translationString, variables, tags)).toEqual(<span lang="en">{ result }</span>);
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},
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);
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});
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});
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});
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describe('when languages dont load', () => {
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it('_t', () => {
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const STRING_NOT_IN_THE_DICTIONARY = "a string that isn't in the translations dictionary";
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expect(_t(STRING_NOT_IN_THE_DICTIONARY, {}, undefined)).toEqual(STRING_NOT_IN_THE_DICTIONARY);
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});
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it('_tDom', () => {
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const STRING_NOT_IN_THE_DICTIONARY = "a string that isn't in the translations dictionary";
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expect(_tDom(STRING_NOT_IN_THE_DICTIONARY, {}, undefined)).toEqual(
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<span lang="en">{ STRING_NOT_IN_THE_DICTIONARY }</span>);
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});
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});
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});
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