Makelore 2.0 initial clean snapshot

tests/unit/chat-view-preferences.test.ts

@@ -0,0 +1,85 @@
+import { describe, expect, it } from 'vitest';
+import {
+  CHAT_VIEW_PREFERENCES_STORAGE_KEY,
+  deleteChatViewPreferences,
+  loadChatViewPreferences,
+  saveChatViewPreferences,
+} from '@/stores/chat-view-preferences';
+
+function memoryStorage(): Storage {
+  const values = new Map<string, string>();
+  return {
+    get length() { return values.size; },
+    clear: () => values.clear(),
+    getItem: (key) => values.get(key) ?? null,
+    key: (index) => [...values.keys()][index] ?? null,
+    removeItem: (key) => { values.delete(key); },
+    setItem: (key, value) => { values.set(key, value); },
+  };
+}
+
+describe('chat view preferences', () => {
+  it('defaults to the current visible thinking and timestamp behavior', () => {
+    expect(loadChatViewPreferences('session-1', memoryStorage())).toEqual({
+      showThinking: true,
+      showTimestamps: true,
+    });
+  });
+
+  it('persists independent per-session values and ignores malformed storage', () => {
+    const storage = memoryStorage();
+    saveChatViewPreferences('session-1', { showThinking: false }, storage);
+    saveChatViewPreferences('session-2', { showTimestamps: false }, storage);
+
+    expect(loadChatViewPreferences('session-1', storage)).toEqual({
+      showThinking: false,
+      showTimestamps: true,
+    });
+    expect(loadChatViewPreferences('session-2', storage)).toEqual({
+      showThinking: true,
+      showTimestamps: false,
+    });
+
+    storage.setItem(CHAT_VIEW_PREFERENCES_STORAGE_KEY, '{not-json');
+    expect(loadChatViewPreferences('session-1', storage)).toEqual({
+      showThinking: true,
+      showTimestamps: true,
+    });
+  });
+
+  it('deletes only the removed session entry', () => {
+    const storage = memoryStorage();
+    saveChatViewPreferences('session-1', { showThinking: false }, storage);
+    saveChatViewPreferences('session-2', { showTimestamps: false }, storage);
+
+    deleteChatViewPreferences('session-1', storage);
+
+    expect(loadChatViewPreferences('session-1', storage).showThinking).toBe(true);
+    expect(loadChatViewPreferences('session-2', storage).showTimestamps).toBe(false);
+  });
+
+  it('treats unavailable storage as best-effort and never throws', () => {
+    const unavailableStorage = {
+      get length() { throw new Error('storage denied'); },
+      clear: () => { throw new Error('storage denied'); },
+      getItem: () => { throw new Error('storage denied'); },
+      key: () => { throw new Error('storage denied'); },
+      removeItem: () => { throw new Error('storage denied'); },
+      setItem: () => { throw new Error('storage denied'); },
+    } as Storage;
+
+    expect(loadChatViewPreferences('session-1', unavailableStorage)).toEqual({
+      showThinking: true,
+      showTimestamps: true,
+    });
+    expect(saveChatViewPreferences(
+      'session-1',
+      { showThinking: false },
+      unavailableStorage,
+    )).toEqual({
+      showThinking: false,
+      showTimestamps: true,
+    });
+    expect(() => deleteChatViewPreferences('session-1', unavailableStorage)).not.toThrow();
+  });
+});