feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/arch/i18n/__tests__/i18n.test.tsx

@@ -0,0 +1,126 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+import { describe, it, expect, vi, beforeEach, beforeAll } from 'vitest';
+
+import { I18n, getUnReactiveLanguage } from '../src/index';
+
+describe('I18n', () => {
+  beforeAll(() => {
+    I18n.init({
+      lng: 'en',
+      fallbackLng: 'en',
+      resources: {
+        en: { i18n: { test: 'Test', 'test-key': 'test-key-value' } },
+        'zh-CN': { i18n: { test: '测试' } },
+      },
+    });
+  });
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('should have basic methods', () => {
+    expect(I18n).toBeDefined();
+    expect(I18n.language).toBe('en');
+    expect(I18n.t).toBeDefined();
+    expect(typeof I18n.t).toBe('function');
+  });
+
+  it('should get language', () => {
+    expect(getUnReactiveLanguage()).toBe('en');
+  });
+
+  it('should call init method', () => {
+    const initSpy = vi.spyOn(I18n, 'init');
+    const config = { lng: 'en' };
+    const callback = vi.fn();
+
+    I18n.init(config, callback);
+
+    expect(initSpy).toHaveBeenCalledWith(config, callback);
+  });
+
+  it('should call use method', () => {
+    const useSpy = vi.spyOn(I18n, 'use');
+    const plugin = {};
+
+    I18n.use(plugin);
+
+    expect(useSpy).toHaveBeenCalledWith(plugin);
+  });
+
+  it('should call setLang method', () => {
+    const setLangSpy = vi.spyOn(I18n, 'setLang');
+    const lang = 'zh-CN';
+    const callback = vi.fn();
+
+    I18n.setLang(lang, callback);
+
+    expect(setLangSpy).toHaveBeenCalledWith(lang, callback);
+  });
+
+  it('should call getLanguages method', () => {
+    const getLanguagesSpy = vi.spyOn(I18n, 'getLanguages');
+
+    const result = I18n.getLanguages();
+
+    expect(getLanguagesSpy).toHaveBeenCalled();
+    expect(result).toEqual(['zh-CN', 'zh', 'en-US']);
+  });
+
+  it('should call dir method', () => {
+    const dirSpy = vi.spyOn(I18n, 'dir');
+
+    const result = I18n.dir();
+
+    expect(dirSpy).toHaveBeenCalled();
+    expect(result).toBe('ltr');
+  });
+
+  it('should call addResourceBundle method', () => {
+    const addResourceBundleSpy = vi.spyOn(I18n, 'addResourceBundle');
+    const lng = 'en';
+    const ns = 'test';
+    const resources = { key: 'value' };
+    const deep = true;
+    const overwrite = false;
+
+    I18n.addResourceBundle(lng, ns, resources, deep, overwrite);
+
+    expect(addResourceBundleSpy).toHaveBeenCalledWith(
+      lng,
+      ns,
+      resources,
+      deep,
+      overwrite,
+    );
+  });
+
+  it('should call t method', () => {
+    I18n.setLang('en');
+    const tSpy = vi.spyOn(I18n, 't');
+    const key = 'test-key';
+    const options = { ns: 'i18n' };
+    const fallbackText = 'fallback';
+
+    const result = I18n.t(key as any, options, fallbackText);
+
+    expect(tSpy).toHaveBeenCalledWith(key, options, fallbackText);
+    expect(result).toBe('test-key-value');
+  });
+});