62 lines
1.9 KiB
TypeScript
62 lines
1.9 KiB
TypeScript
 
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import { test } from 'node:test';
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import assert from 'node:assert/strict';
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// The module evaluates atomWithStorage(..., { getOnInit: true }) which reads
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// localStorage at load time. node has none — install a no-op mock, then import
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// dynamically (a static import would hoist above the mock).
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(globalThis as { localStorage?: unknown }).localStorage = {
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getItem: () => null,
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setItem: () => undefined,
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removeItem: () => undefined,
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};
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const { addTranslation, findTranslation, makeCacheKey } = await import('./translation');
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const entry = (key: string, translated = `t-${key}`, fromLang = 'de') => ({
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key,
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translated,
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fromLang,
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});
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test('makeCacheKey: eventId + normalized target', () => {
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assert.equal(makeCacheKey('$abc', 'en-US'), '$abc:en');
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assert.equal(makeCacheKey('$abc', 'EN'), '$abc:en');
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});
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test('addTranslation: prepends, newest first', () => {
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const out = addTranslation([entry('a'), entry('b')], entry('c'));
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assert.deepEqual(
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out.map((e) => e.key),
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['c', 'a', 'b'],
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);
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});
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test('addTranslation: de-dupes by key, moving to front (and updates value)', () => {
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const out = addTranslation([entry('a', 'old'), entry('b')], entry('a', 'new'));
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assert.deepEqual(
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out.map((e) => e.key),
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['a', 'b'],
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);
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assert.equal(out[0].translated, 'new');
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});
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test('addTranslation: caps at max (newest kept)', () => {
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const out = addTranslation([entry('a'), entry('b'), entry('c')], entry('d'), 3);
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assert.deepEqual(
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out.map((e) => e.key),
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['d', 'a', 'b'],
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);
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});
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test('addTranslation: ignores empty key or translated', () => {
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const start = [entry('a')];
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assert.equal(addTranslation(start, entry('', 'x')), start);
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assert.equal(addTranslation(start, entry('b', '')), start);
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});
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test('findTranslation: returns match or undefined', () => {
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const list = [entry('a'), entry('b')];
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assert.equal(findTranslation(list, 'b')?.key, 'b');
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assert.equal(findTranslation(list, 'z'), undefined);
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});
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