Added memory module

mcpServer/modules/memory/__tests__/file-path.test.ts

@@ -0,0 +1,156 @@
+import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
+import { promises as fs } from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+import { ensureMemoryFilePath, defaultMemoryPath } from '../index.js';
+
+describe('ensureMemoryFilePath', () => {
+  const testDir = path.dirname(fileURLToPath(import.meta.url));
+  const oldMemoryPath = path.join(testDir, '..', 'memory.json');
+  const newMemoryPath = path.join(testDir, '..', 'memory.jsonl');
+
+  let originalEnv: string | undefined;
+
+  beforeEach(() => {
+    // Save original environment variable
+    originalEnv = process.env.MEMORY_FILE_PATH;
+    // Delete environment variable
+    delete process.env.MEMORY_FILE_PATH;
+  });
+
+  afterEach(async () => {
+    // Restore original environment variable
+    if (originalEnv !== undefined) {
+      process.env.MEMORY_FILE_PATH = originalEnv;
+    } else {
+      delete process.env.MEMORY_FILE_PATH;
+    }
+
+    // Clean up test files
+    try {
+      await fs.unlink(oldMemoryPath);
+    } catch {
+      // Ignore if file doesn't exist
+    }
+    try {
+      await fs.unlink(newMemoryPath);
+    } catch {
+      // Ignore if file doesn't exist
+    }
+  });
+
+  describe('with MEMORY_FILE_PATH environment variable', () => {
+    it('should return absolute path when MEMORY_FILE_PATH is absolute', async () => {
+      const absolutePath = '/tmp/custom-memory.jsonl';
+      process.env.MEMORY_FILE_PATH = absolutePath;
+
+      const result = await ensureMemoryFilePath();
+
+      expect(result).toBe(absolutePath);
+    });
+
+    it('should convert relative path to absolute when MEMORY_FILE_PATH is relative', async () => {
+      const relativePath = 'custom-memory.jsonl';
+      process.env.MEMORY_FILE_PATH = relativePath;
+
+      const result = await ensureMemoryFilePath();
+
+      expect(path.isAbsolute(result)).toBe(true);
+      expect(result).toContain('custom-memory.jsonl');
+    });
+
+    it('should handle Windows absolute paths', async () => {
+      const windowsPath = 'C:\\temp\\memory.jsonl';
+      process.env.MEMORY_FILE_PATH = windowsPath;
+
+      const result = await ensureMemoryFilePath();
+
+      // On Windows, should return as-is; on Unix, will be treated as relative
+      if (process.platform === 'win32') {
+        expect(result).toBe(windowsPath);
+      } else {
+        expect(path.isAbsolute(result)).toBe(true);
+      }
+    });
+  });
+
+  describe('without MEMORY_FILE_PATH environment variable', () => {
+    it('should return default path when no files exist', async () => {
+      const result = await ensureMemoryFilePath();
+
+      expect(result).toBe(defaultMemoryPath);
+    });
+
+    it('should migrate from memory.json to memory.jsonl when only old file exists', async () => {
+      // Create old memory.json file
+      await fs.writeFile(oldMemoryPath, '{"test":"data"}');
+
+      const consoleErrorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+
+      const result = await ensureMemoryFilePath();
+
+      expect(result).toBe(defaultMemoryPath);
+
+      // Verify migration happened
+      const newFileExists = await fs.access(newMemoryPath).then(() => true).catch(() => false);
+      const oldFileExists = await fs.access(oldMemoryPath).then(() => true).catch(() => false);
+
+      expect(newFileExists).toBe(true);
+      expect(oldFileExists).toBe(false);
+
+      // Verify console messages
+      expect(consoleErrorSpy).toHaveBeenCalledWith(
+        expect.stringContaining('DETECTED: Found legacy memory.json file')
+      );
+      expect(consoleErrorSpy).toHaveBeenCalledWith(
+        expect.stringContaining('COMPLETED: Successfully migrated')
+      );
+
+      consoleErrorSpy.mockRestore();
+    });
+
+    it('should use new file when both old and new files exist', async () => {
+      // Create both files
+      await fs.writeFile(oldMemoryPath, '{"old":"data"}');
+      await fs.writeFile(newMemoryPath, '{"new":"data"}');
+
+      const consoleErrorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+
+      const result = await ensureMemoryFilePath();
+
+      expect(result).toBe(defaultMemoryPath);
+
+      // Verify no migration happened (both files should still exist)
+      const newFileExists = await fs.access(newMemoryPath).then(() => true).catch(() => false);
+      const oldFileExists = await fs.access(oldMemoryPath).then(() => true).catch(() => false);
+
+      expect(newFileExists).toBe(true);
+      expect(oldFileExists).toBe(true);
+
+      // Verify no console messages about migration
+      expect(consoleErrorSpy).not.toHaveBeenCalled();
+
+      consoleErrorSpy.mockRestore();
+    });
+
+    it('should preserve file content during migration', async () => {
+      const testContent = '{"entities": [{"name": "test", "type": "person"}]}';
+      await fs.writeFile(oldMemoryPath, testContent);
+
+      await ensureMemoryFilePath();
+
+      const migratedContent = await fs.readFile(newMemoryPath, 'utf-8');
+      expect(migratedContent).toBe(testContent);
+    });
+  });
+
+  describe('defaultMemoryPath', () => {
+    it('should end with memory.jsonl', () => {
+      expect(defaultMemoryPath).toMatch(/memory\.jsonl$/);
+    });
+
+    it('should be an absolute path', () => {
+      expect(path.isAbsolute(defaultMemoryPath)).toBe(true);
+    });
+  });
+});