mirror of
https://github.com/vector-im/element-web.git
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227 lines
8.8 KiB
TypeScript
227 lines
8.8 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> | undefined, 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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["handles plurals when count is 0", plurals, { count: 0 }, undefined, "and 0 others..."],
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["handles plurals when count is 1", plurals, { count: 1 }, undefined, "and one other..."],
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["handles plurals when count is not 1", plurals, { count: 2 }, undefined, "and 2 others..."],
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["handles simple variable substitution", variableSub, { userId: "foo" }, undefined, "You are now ignoring foo"],
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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: string) => `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>
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You are now ignoring <i>foo</i>
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</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>
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You are now ignoring <i>foo</i>
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</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>
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Accept <i>foo</i> to continue:
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</span>,
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],
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];
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let oldNodeEnv: string | undefined;
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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 () {
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stubClient();
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setLanguage("en");
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setMissingEntryGenerator((key) => key.split("|", 2)[1]);
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});
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it("translates a string to german", async () => {
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await setLanguage("de");
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const translated = _t(basicString);
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expect(translated).toBe("Räume");
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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` })).toBe(
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"xClick herex to join the discussion! xor herex",
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);
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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 = function (key: string) {
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return "missing translation: " + key;
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};
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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(lvExistingPlural, { count: 1, filename: "test.txt" })).toEqual(
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"Качване на test.txt и 1 друг",
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);
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});
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it.each(pluralCases)("%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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});
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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(lvExistingPlural, { count: 1, filename: "test.txt" })).toEqual(
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"Качване на test.txt и 1 друг",
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);
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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, {})).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, {})).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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});
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