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test: add i18n translate and resolveUiLanguage unit tests

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Cover translate() with explicit languages, variable interpolation (single,
multiple, numeric), missing keys, null settings, unmatched placeholders.
Test resolveUiLanguage for explicit/auto/null settings.
Validate zh/en STRINGS parity (same key count, no missing keys).

Change-Id: I06c3bdc9d824eaa0e205b335b9856d872a1aefd1
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fancivez 2026-04-27 13:22:30 +08:00 committed by wujunchen
parent 1efacf695c
commit d6b89924f2
1 changed files with 54 additions and 0 deletions
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54
tests/direct-modules.test.js
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@ -37,6 +37,7 @@ async function requireBundledModule(relativePath) {
const cache = await requireBundledModule('src/cache.ts');
const cacheManagerModule = await requireBundledModule('src/cache-manager.ts');
const generation = await requireBundledModule('src/generation.ts');
const i18n = await requireBundledModule('src/i18n.ts');
const providerParsers = await requireBundledModule('src/provider-parsers.ts');
const settings = await requireBundledModule('src/settings.ts');
const streaming = await requireBundledModule('src/streaming.ts');
@ -363,6 +364,59 @@ async function requireBundledModule(relativePath) {
assert.strictEqual(anthropicSettings.model, 'claude-sonnet-4-6', 'applyApiProviderPreset does not mutate input');
assert.strictEqual(anthropicSettings.apiProvider, 'anthropic', 'original provider unchanged');
// --- i18n.ts: translate and resolveUiLanguage ---
// translate with explicit language
assert.strictEqual(i18n.translate({ uiLanguage: 'en' }, 'displayName'), 'Parallel Reader', 'translate returns en string');
assert.strictEqual(i18n.translate({ uiLanguage: 'zh' }, 'displayName'), '对照阅读笔记', 'translate returns zh string');
// translate with variable interpolation
assert.strictEqual(
i18n.translate({ uiLanguage: 'en' }, 'cacheClearedFile', { name: 'test.md' }),
'Cleared cache: test.md',
'translate interpolates variables',
);
assert.strictEqual(
i18n.translate({ uiLanguage: 'en' }, 'generationDone', { count: 5, suffix: '' }),
'Generated 5 sections',
'translate interpolates numeric variables',
);
// translate with multiple variables
assert.strictEqual(
i18n.translate({ uiLanguage: 'en' }, 'errorProviderApiStatus', { label: 'OpenAI', status: 429, excerpt: 'rate limited' }),
'OpenAI API returned HTTP 429: rate limited',
'translate interpolates multiple variables',
);
// translate with missing key returns key
assert.strictEqual(i18n.translate({ uiLanguage: 'en' }, 'nonExistentKey123'), 'nonExistentKey123', 'translate returns key for missing translation');
// translate with null settings defaults to some language
assert.ok(i18n.translate(null, 'displayName').length > 0, 'translate with null settings still returns a string');
// translate preserves unmatched placeholders
assert.strictEqual(
i18n.translate({ uiLanguage: 'en' }, 'cacheClearedFile'),
'Cleared cache: {name}',
'translate preserves unmatched placeholders when no vars provided',
);
// resolveUiLanguage
assert.strictEqual(i18n.resolveUiLanguage({ uiLanguage: 'en' }), 'en', 'resolveUiLanguage returns en');
assert.strictEqual(i18n.resolveUiLanguage({ uiLanguage: 'zh' }), 'zh', 'resolveUiLanguage returns zh');
assert.strictEqual(i18n.resolveUiLanguage(null), 'en', 'resolveUiLanguage defaults to en for null');
assert.strictEqual(i18n.resolveUiLanguage({ uiLanguage: 'auto' }), 'en', 'resolveUiLanguage auto falls back to en in Node');
// STRINGS structure validation
assert.ok(i18n.STRINGS.zh, 'STRINGS has zh locale');
assert.ok(i18n.STRINGS.en, 'STRINGS has en locale');
const zhKeys = Object.keys(i18n.STRINGS.zh);
const enKeys = Object.keys(i18n.STRINGS.en);
assert.strictEqual(zhKeys.length, enKeys.length, 'zh and en have same number of keys');
for (const key of zhKeys) {
assert.ok(i18n.STRINGS.en[key], `en missing key: ${key}`);
}
// --- parseSseBuffer unit tests ---
const openAiExtractor = streaming.deltaExtractorForFormat('openai-chat');
const anthropicExtractor = streaming.deltaExtractorForFormat('anthropic-messages');