Neo4j Memory Server

/** * IndexManager Simplified Tests * Focus on current implementation, not legacy features */ import { describe, it, expect, beforeEach, vi } from 'vitest'; import { IndexManager } from '../../../src/infrastructure/database/index-manager'; describe('IndexManager - Simplified Tests', () => { let indexManager: IndexManager; let mockSession: any; beforeEach(() => { mockSession = { run: vi.fn() }; // Create with valid dimensions to test vector indexes indexManager = new IndexManager(mockSession, 384); }); describe('Database Validation', () => { it('should succeed when database name is available', async () => { // Mock db.info() to return valid database name mockSession.run.mockResolvedValueOnce({ records: [{ get: () => 'test-database' }] }); mockSession.run.mockResolvedValue({ records: [] }); await expect(indexManager.ensureConstraints()).resolves.not.toThrow(); }); it('should fail when database name cannot be determined', async () => { // Mock db.info() to return null mockSession.run.mockResolvedValueOnce({ records: [{ get: () => null }] }); await expect(indexManager.ensureConstraints()) .rejects.toThrow('Database name could not be determined'); }); it('should detect system database and fail', async () => { // Mock db.info() to return system database mockSession.run.mockResolvedValueOnce({ records: [{ get: () => 'system' }] }); await expect(indexManager.ensureConstraints()) .rejects.toThrow('Cannot create constraints on system database'); }); }); describe('Schema Validation', () => { it('should correctly detect existing schema', async () => { // Mock SHOW CONSTRAINTS queries to return existing constraints mockSession.run .mockResolvedValueOnce({ records: [{}] }) // memory constraint exists .mockResolvedValueOnce({ records: [{}] }) // observation constraint exists .mockResolvedValueOnce({ records: [{}] }) // memory_type index exists .mockResolvedValueOnce({ records: [{}] }); // memory_created index exists const hasSchema = await indexManager.hasRequiredSchema(); expect(hasSchema).toBe(true); }); it('should detect missing schema', async () => { // Mock queries to return empty results mockSession.run.mockResolvedValue({ records: [] }); const hasSchema = await indexManager.hasRequiredSchema(); expect(hasSchema).toBe(false); }); }); describe('Full Schema Initialization', () => { it('should initialize complete schema successfully', async () => { // Mock database validation to always succeed - each method calls validateUserDatabase const dbInfoResponse = { records: [{ get: (field: string) => field === 'name' ? 'test-database' : undefined }] }; // Mock db.info() to return valid database for all validation calls mockSession.run.mockImplementation((query: string) => { if (query.includes('db.info()')) { return Promise.resolve(dbInfoResponse); } // All other operations (constraints, indexes) succeed return Promise.resolve({ records: [] }); }); await expect(indexManager.initializeSchema()).resolves.not.toThrow(); // Should call db.info multiple times, then various schema operations expect(mockSession.run).toHaveBeenCalled(); }); }); });