127 lines
3.2 KiB
TypeScript
127 lines
3.2 KiB
TypeScript
import assert from "node:assert/strict";
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import { beforeEach, describe, it } from "node:test";
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import type I18n from "@websnacksjs/i18n";
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import { type Fixtures, withFixture } from "../fixtures.ts";
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describe("new I18n(...)", () => {
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it("throws error when passed messageUrlTemplate w/o :locale, :namespace placeholders", () => {
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assert.throws(
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() =>
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withFixture("base", {
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messagesUrlTemplate: new URL(
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"../some/path",
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import.meta.url,
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),
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}),
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{
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message:
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'messagesUrlTemplate is missing required placeholders [":locale", ":namespace"]',
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},
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);
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assert.throws(
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() =>
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withFixture("base", {
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messagesUrlTemplate: new URL(
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"../some/path/:namespace",
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import.meta.url,
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),
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}),
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{
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message:
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'messagesUrlTemplate is missing required placeholders [":locale"]',
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},
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);
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});
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it("throws error when passed empty array of supportedLocales", () => {
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assert.throws(
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() =>
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withFixture("base", {
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supportedLocales: [],
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}),
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{
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message:
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"supportedLocales is empty and no locales would be supported",
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},
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);
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});
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it("throws error when passed locale strings that don't conform to RFC 5646", () => {
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const invalidLocales = ["en_US", "zh-CN-UTF-8", "en-GB@euro"];
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assert.throws(
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() =>
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withFixture("base", {
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supportedLocales: ["fr-Latn-FR", ...invalidLocales],
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}),
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{
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message: `supportedLocales contains invalid RFC 5646 locale strings ["en_US","zh-CN-UTF-8","en-GB@euro"]`,
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},
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);
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});
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});
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describe("i18n.loadMessages(...)", () => {
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let i18n: I18n<Fixtures["base"]>;
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beforeEach(() => {
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i18n = withFixture("base");
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});
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it("throws error when requesting namespaces that weren't declared", async () => {
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await assert.rejects(
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i18n.loadMessages({
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locale: "en",
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// @ts-ignore
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namespaces: ["doesnt-exist", "neither-does-this"],
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}),
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{
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message:
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'attempted to load messages from undeclared namespaces ["doesnt-exist", "neither-does-this"] ' +
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"(did you declare them in the I18n constructor?)",
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},
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);
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});
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it("throws error when requesting locales that weren't declared", async () => {
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await assert.rejects(
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i18n.loadMessages({
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locale: "de",
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namespaces: ["drama"],
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}),
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{
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message:
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'no declared locale matches requested locale of "de-Latn-DE" (maximized from "de")',
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},
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);
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});
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});
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describe("t(...)", () => {
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let i18n: I18n<Fixtures["base"]>;
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beforeEach(() => {
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i18n = withFixture("base");
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});
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it("correctly translates common messages", async () => {
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const t = await i18n.loadMessages({ locale: "fr" });
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assert.equal(t("denial"), "Je ne l'ai pas frappée. Je ne l'ai pas.");
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});
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it("correctly substitutes placeholders in translations", async () => {
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const t = await i18n.loadMessages({ locale: "fr" });
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assert.equal(t("oh hai", { name: "Mark" }), "Oh salut, Mark !");
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});
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it("correctly translates messages with nested keys", async () => {
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const t = await i18n.loadMessages({ locale: "fr" });
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assert.equal(t("flower shop.doggy"), "Salut toutou !");
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});
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it("correctly translates namespaced messages", async () => {
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const t = await i18n.loadMessages({
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locale: "fr",
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namespaces: ["drama"],
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});
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assert.equal(t("drama:tearing me apart"), "Tu me déchires, Lisa !");
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});
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});
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