feat: expand intelligent investigation workspace

src/features/agent/speech-voices.test.tsx

@@ -0,0 +1,49 @@
+import { act, renderHook } from "@testing-library/react";
+import { beforeEach, expect, it, vi } from "vitest";
+import { getSelectedSpeechVoice, getSpeechVoiceDescription, getSpeechVoiceName, setSelectedSpeechVoice, SPEECH_VOICE_STORAGE_KEY, useSelectedSpeechVoice } from "./speech-voices";
+
+beforeEach(() => setSelectedSpeechVoice(""));
+
+it("shares a saved voice across selectors and restores it from browser storage", () => {
+  const first = renderHook(useSelectedSpeechVoice);
+  const second = renderHook(useSelectedSpeechVoice);
+  act(() => setSelectedSpeechVoice("zh-CN-YunyangNeural"));
+  expect(first.result.current).toBe("zh-CN-YunyangNeural");
+  expect(second.result.current).toBe("zh-CN-YunyangNeural");
+  expect(localStorage.getItem(SPEECH_VOICE_STORAGE_KEY)).toBe("zh-CN-YunyangNeural");
+  act(() => {
+    localStorage.setItem(SPEECH_VOICE_STORAGE_KEY, "zh-CN-XiaoyiNeural");
+    window.dispatchEvent(new StorageEvent("storage", { key: SPEECH_VOICE_STORAGE_KEY }));
+  });
+  expect(first.result.current).toBe("zh-CN-XiaoyiNeural");
+  first.unmount(); second.unmount();
+});
+
+it("ignores malformed stored values and resets to the server default", () => {
+  localStorage.setItem(SPEECH_VOICE_STORAGE_KEY, "unsafe<xml>");
+  expect(getSelectedSpeechVoice()).toBe("");
+  localStorage.setItem(SPEECH_VOICE_STORAGE_KEY, "en-US-AriaNeural");
+  expect(getSelectedSpeechVoice()).toBe("");
+  setSelectedSpeechVoice("zh-CN-YunyangNeural");
+  setSelectedSpeechVoice("");
+  expect(getSelectedSpeechVoice()).toBe("");
+  expect(localStorage.getItem(SPEECH_VOICE_STORAGE_KEY)).toBeNull();
+});
+
+it("provides Chinese labels and gender descriptions for Mandarin voices", () => {
+  const voice = { id: "zh-CN-YunyangNeural", name: "Yunyang", locale: "zh-CN" as const, gender: "Male" as const };
+  expect(getSpeechVoiceName(voice)).toBe("云扬");
+  expect(getSpeechVoiceDescription(voice)).toContain("男声");
+  expect(getSpeechVoiceDescription(voice)).toContain("普通话");
+});
+
+it("keeps the choice for this page if browser storage cannot be written", () => {
+  const write = vi.spyOn(Storage.prototype, "setItem").mockImplementation(() => { throw new Error("quota exceeded"); });
+  try {
+    setSelectedSpeechVoice("zh-CN-YunyangNeural");
+    expect(getSelectedSpeechVoice()).toBe("zh-CN-YunyangNeural");
+  } finally {
+    write.mockRestore();
+    setSelectedSpeechVoice("");
+  }
+});