Commit Graph

4 Commits

Author SHA1 Message Date
9105610b29 feat: Add integration tests 8-10 & fix CTest configuration
Added three new integration test scenarios:
- Test 08: Config Hot-Reload (dynamic configuration updates)
- Test 09: Module Dependencies (dependency injection & cascade reload)
- Test 10: Multi-Version Coexistence (canary deployment & progressive migration)

Fixes:
- Fixed CTest working directory for all tests (add WORKING_DIRECTORY)
- Fixed module paths to use relative paths (./ prefix)
- Fixed IModule.h comments for clarity

New test modules:
- ConfigurableModule (for config reload testing)
- BaseModule, DependentModule, IndependentModule (for dependency testing)
- GameLogicModuleV1/V2/V3 (for multi-version testing)

Test coverage now includes 10 comprehensive integration scenarios covering
hot-reload, chaos testing, stress testing, race conditions, memory leaks,
error recovery, limits, config reload, dependencies, and multi-versioning.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-19 07:34:15 +08:00
360f39325b feat: Add Memory Leak Hunter test & fix critical ModuleLoader leaks
**Test Suite Completion - Scenario 5**

Add comprehensive memory leak detection test for hot-reload system with 200 reload cycles.

**New Test: test_05_memory_leak**
- 200 hot-reload cycles without recompilation
- Memory monitoring every 5 seconds (RSS, temp files, .so handles)
- Multi-threaded: Engine (60 FPS) + ReloadScheduler + MemoryMonitor
- Strict validation: <10 MB growth, <50 KB/reload, ≤2 temp files

**New Module: LeakTestModule**
- Controlled memory allocations (1 MB work buffer)
- Large state serialization (100 KB blob)
- Simulates real-world module behavior

**Critical Fix: ModuleLoader Memory Leaks** (src/ModuleLoader.cpp:34-39)
- Auto-unload previous library before loading new one
- Prevents library handle leaks (+200 .so mappings eliminated)
- Prevents temp file accumulation (778 files → 1-2 files)
- Memory leak reduced by 97%: 36.5 MB → 1.9 MB

**Test Results - Before Fix:**
- Memory growth: 36.5 MB 
- Per reload: 187.1 KB 
- Temp files: 778 
- Mapped .so: +200 

**Test Results - After Fix:**
- Memory growth: 1.9 MB 
- Per reload: 9.7 KB 
- Temp files: 1-2 
- Mapped .so: stable 
- 200/200 reloads successful (100%)

**Enhanced SystemUtils helpers:**
- countTempFiles(): Count temp module files
- getMappedLibraryCount(): Track .so handle leaks via /proc/self/maps

**Test Lifecycle Improvements:**
- test_04 & test_05: Destroy old module before reload to prevent use-after-free
- Proper state/config preservation across reload boundary

**Files Modified:**
- src/ModuleLoader.cpp: Auto-unload on load()
- tests/integration/test_05_memory_leak.cpp: NEW - 200 cycle leak detector
- tests/modules/LeakTestModule.cpp: NEW - Test module with allocations
- tests/helpers/SystemUtils.{h,cpp}: Memory monitoring functions
- tests/integration/test_04_race_condition.cpp: Fixed module lifecycle
- tests/CMakeLists.txt: Added test_05 and LeakTestModule

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-16 10:06:18 +08:00
aa322d5214 fix: Correct hot-reload version validation in race condition test
Fixed critical bug where moduleVersion was being overwritten during
setConfiguration(), preventing proper hot-reload validation.

## Problem
- TestModule::setConfiguration() called configNode.getString("version")
- This overwrote the compiled moduleVersion (v2, v3, etc.) back to "v1"
- All reloads appeared successful but versions never actually changed
- Test validated thread safety but NOT actual hot-reload functionality

## Solution
- Removed moduleVersion overwrite from setConfiguration()
- moduleVersion now preserved as global compiled into .so
- Added clear comments explaining this is a compile-time value
- Simplified test configuration (no longer passes version param)

## Test Results (After Fix)
 15/15 compilations (100%)
 29/29 reloads (100%)
 Versions actually change: v1 → v2 → v5 → v14 → v15
 0 corruptions
 0 crashes
 330ms avg reload time (file stability check working)
 Test now validates REAL hot-reload, not just thread safety

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-15 13:21:57 +08:00
484b9ab5d4 feat: Add Scenario 4 - Race Condition Hunter test suite
Add comprehensive concurrent compilation and hot-reload testing infrastructure
to validate thread safety and file stability during race conditions.

## New Components

### AutoCompiler Helper (tests/helpers/AutoCompiler.{h,cpp})
- Automatically modifies source files to bump version numbers
- Compiles modules repeatedly on separate thread (15 iterations @ 1s interval)
- Tracks compilation success/failure rates with atomic counters
- Thread-safe compilation statistics

### Race Condition Test (tests/integration/test_04_race_condition.cpp)
- **3 concurrent threads:**
  - Compiler: Recompiles TestModule.so every 1 second
  - FileWatcher: Detects .so changes and triggers hot-reload with mutex protection
  - Engine: Runs at 60 FPS with try_lock to skip frames during reload
- Validates module integrity (health status, version, configuration)
- Tracks metrics: compilation rate, reload success, corrupted loads, crashes
- 90-second timeout with progress monitoring

### TestModule Enhancements (tests/modules/TestModule.cpp)
- Added global moduleVersion variable for AutoCompiler modification
- Version bumping support for reload validation

## Test Results (Initial Implementation)

```
Duration: 88s
Compilations:  15/15 (100%) 
Reloads:       ~30 (100% success) 
Corrupted:     0 
Crashes:       0 
File Stability: 328ms avg (proves >100ms wait) 
```

## Known Issue (To Fix in Next Commit)
- Module versions not actually changing during reload
- setConfiguration() overwrites compiled version
- Reload mechanism validated but version bumping needs fix

## Files Modified
- tests/CMakeLists.txt: Add AutoCompiler to helpers, add test_04
- tests/modules/TestModule.cpp: Add version bumping support
- .gitignore: Add build/ and logs/

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-15 10:55:44 +08:00