# Multi-Tenant Audit - Test Execution Log

**Date:** November 29, 2025  
**Status:** In Progress

---

## Environment Setup

### Docker Containers (Audit)
| Container | Image | Port | Status |
|-----------|-------|------|--------|
| lightrag-audit-postgres | pgvector/pgvector:pg16 | 5433 | ✅ Healthy |
| lightrag-audit-redis | redis:7-alpine | 6380 | ✅ Healthy |

### Test Configuration
- PostgreSQL: `localhost:5433` (User: lightrag, DB: lightrag_audit)
- Redis: `localhost:6380`
- API will run locally on port 9622 (to avoid conflict)
- WebUI will run locally on port 5173

---

## Execution Timeline

### Session 1: Initial Setup and Codebase Review

**Time:** 2025-11-29 [Start]

#### Observation 1: Multi-Tenant Architecture Components Identified

1. **Web UI Layer:**
   - `tenant.ts` store: Zustand store for tenant/KB selection with localStorage persistence
   - `client.ts`: Axios interceptor adds X-Tenant-ID and X-KB-ID headers
   - Console logging enabled for debugging header propagation

2. **REST API Layer:**
   - `dependencies.py`: `get_tenant_context()` extracts tenant from headers
   - `tenant_routes.py`: CRUD for tenants and KBs
   - `document_routes.py`: Tenant-scoped document operations
   - `query_routes.py`: Tenant-scoped query operations

3. **Storage Layer:**
   - PostgreSQL tables have `tenant_id` and `kb_id` columns with composite PKs
   - SQL queries use `TenantSQLBuilder` for automatic filtering
   - Redis uses namespace prefixes

#### Initial Findings from Code Review

**Finding 1: Potential Issue in Document Routes**
- Location: `lightrag/api/routers/document_routes.py`
- Need to verify tenant context is consistently applied to all endpoints

**Finding 2: Query Route Tenant Handling**
- Location: `lightrag/api/routers/query_routes.py`  
- The `get_tenant_rag()` dependency falls back to global RAG if no context
- This could be a security issue if headers are missing

**Finding 3: WebUI State Management**
- Recent fix in `DocumentManager.tsx` to clear state on tenant/KB change
- Need to verify this works correctly in practice

---

## Test Execution

### Phase 1: Setup Python Environment

```bash
source ~/.venv/bin/activate
pip install ".[dev]" -q
```

**Status:** ✅ Completed

### Phase 2: Unit Test Execution

#### Test Suite: test_multitenant_e2e.py
**Status:** ✅ PASSED (32/32 tests) in 0.47s

| Test Class | Tests | Status |
|------------|-------|--------|
| TestCompositeKeyPattern | 4 | ✅ |
| TestDataIsolation | 3 | ✅ |
| TestRedisNamespaceIsolation | 5 | ✅ |
| TestContextPropagation | 2 | ✅ |
| TestTenantManagement | 2 | ✅ |
| TestKnowledgeBaseManagement | 2 | ✅ |
| TestDocumentOperations | 3 | ✅ |
| TestEntityRelationIsolation | 2 | ✅ |
| TestEdgeCases | 5 | ✅ |
| TestConcurrentAccess | 2 | ✅ |
| TestDataConsistency | 2 | ✅ |

#### Test Suite: test_tenant_security.py
**Status:** ✅ PASSED (11/11 tests) in 0.26s

| Test Class | Tests | Status |
|------------|-------|--------|
| TestPermissionEnforcement | 5 | ✅ |
| TestTenantContextValidation | 4 | ✅ |
| TestRoleHierarchy | 2 | ✅ |

#### Test Suite: test_multi_tenant_backends.py
**Status:** ✅ PASSED (37/37 tests) in 0.45s

| Test Class | Tests | Status |
|------------|-------|--------|
| TestPostgresMultiTenant | 7 | ✅ |
| TestMongoMultiTenant | 5 | ✅ |
| TestRedisMultiTenant | 6 | ✅ |
| TestVectorMultiTenant | 6 | ✅ |
| TestGraphMultiTenant | 6 | ✅ |
| TestTenantIsolationSecurity | 3 | ✅ |
| TestBackwardCompatibility | 3 | ✅ |

#### Test Suite: test_tenant_storage_phase3.py
**Status:** ✅ PASSED (22/22 tests) in 0.34s

| Test Class | Tests | Status |
|------------|-------|--------|
| TestTenantRAGManagerBasics | 4 | ✅ |
| TestTenantContextUnit | 5 | ✅ |
| TestTenantModel | 4 | ✅ |
| TestTenantConfigModel | 3 | ✅ |
| TestMultiTenantStructure | 4 | ✅ |
| TestTenantContextIsolation | 2 | ✅ |

#### Test Summary
| Test Suite | Tests | Passed | Status |
|------------|-------|--------|--------|
| test_multitenant_e2e.py | 32 | 32 | ✅ |
| test_tenant_security.py | 11 | 11 | ✅ |
| test_multi_tenant_backends.py | 37 | 37 | ✅ |
| test_tenant_storage_phase3.py | 22 | 22 | ✅ |
| **Total** | **102** | **102** | ✅ |

### Phase 3: API Endpoint Testing

**Status:** In Progress

### Phase 4: WebUI Testing

**Status:** Pending

---

## Issues Found

### Issue 1: Test Import Errors
**Files:** `test_document_routes_tenant_scoped.py`, `test_tenant_api_routes.py`
**Problem:** These files have import issues when run outside API context
**Root Cause:** `lightrag.api.routers.document_routes` imports trigger CLI argument parsing
**Impact:** 2 test files cannot be run
**Recommendation:** Fix import structure or mock CLI initialization

### Issue 2: Deprecation Warnings
**Files:** Multiple test files
**Warning:** `datetime.datetime.utcnow()` is deprecated
**Recommendation:** Update to `datetime.datetime.now(datetime.UTC)`

---

## Lessons Learned

1. **All 102 unit tests pass** - The multi-tenant implementation at the model and storage layer is solid
2. **Import issues** exist in API route tests due to CLI argument parsing at import time
3. **Test coverage** is comprehensive for backend multi-tenant isolation
4. **Role-based access control** is properly tested with clear permission boundaries
