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hw-mgmt: thermal: Fix TC init/close flow issue
In rare cases, when stopping the TC service immediately after it starts, it may crash. This occurs because the shutdown cleanup flow uses the system_config variable before it has been initialized. This fix adds proper initialization of this variable to ensure it is ready before use. Also added optimization for logger close on TC stop: removed the redundant log handler flush() call. It is unnecessary because flush() is already called within log handler stop(). Bug: 4545880 Signed-off-by: Oleksandr Shamray <[email protected]>
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‎unittest/hw_mgmt_thermal_control/system_config_race_fix_4545880/README_FINAL_ORGANIZATION.md‎

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# System Config Race Fix Tests - Final Organization
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## ✅ **Complete Organization Achieved**
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All test-related files for Bug 4545880 are now properly organized and can be run from multiple locations.
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## 📁 **Final Directory Structure**
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```
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/mtrsysgwork/oleksandrs/hw-managment/hw_mgmt_clean/
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├── run_system_config_race_fix_tests # ✅ Wrapper script (project root)
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└── unittest/hw_mgmt_thermal_control/system_config_race_fix_4545880/
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├── run_system_config_race_fix_tests # ✅ Main test executable
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├── run_simple_race_tests.py # ✅ Python test runner
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├── test_simple_race_condition_fix.py # ✅ Focused working tests
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├── test_thermal_init_and_signal_handling.py # ✅ Comprehensive tests
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├── test_thermal_init_and_signal_handling_2_5.py # ✅ 2.5 version tests
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├── test_thermal_sensor_error_handling.py # ✅ Existing sensor tests
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├── run_thermal_init_tests.py # ✅ Original test runner
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├── README_thermal_init_tests.md # 📚 Technical documentation
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├── THERMAL_INIT_TESTS_SUMMARY.md # 📋 Executive summary
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├── README_ORGANIZED_TESTS.md # 📖 Organization guide
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├── README_FINAL_ORGANIZATION.md # 📄 This file
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└── __init__.py # 🐍 Python package marker
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```
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## 🚀 **Dual Location Support**
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### **From Project Root** (`/mtrsysgwork/oleksandrs/hw-managment/hw_mgmt_clean/`)
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```bash
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# Run all tests
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./run_system_config_race_fix_tests
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# List available tests
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./run_system_config_race_fix_tests --list-tests
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# Run specific categories
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./run_system_config_race_fix_tests --category logger_optimization
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./run_system_config_race_fix_tests --category early_termination
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./run_system_config_race_fix_tests --category config_failures
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./run_system_config_race_fix_tests --category signal_handler
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./run_system_config_race_fix_tests --category integration
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# Get help
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./run_system_config_race_fix_tests --help
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```
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### **From Test Directory** (`./unittest/hw_mgmt_thermal_control/system_config_race_fix_4545880/`)
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```bash
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# Navigate to test directory
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cd ./unittest/hw_mgmt_thermal_control/system_config_race_fix_4545880/
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# Run all tests
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./run_system_config_race_fix_tests
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# List available tests
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./run_system_config_race_fix_tests --list-tests
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# Run specific categories
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./run_system_config_race_fix_tests --category logger_optimization
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./run_system_config_race_fix_tests --category early_termination
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# Alternative: Direct Python runner
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python3 run_simple_race_tests.py
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python3 run_simple_race_tests.py --category logger_optimization
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```
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## ✅ **Test Coverage Summary**
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**7 comprehensive tests** validating Bug 4545880 fixes:
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| Test Category | Test Count | Status |
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|---------------|------------|---------|
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| **Early Termination** | 1 test | ✅ Working |
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| **Config Failures** | 1 test (5 scenarios) | ✅ Working |
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| **Signal Handler** | 1 test (4 scenarios) | ✅ Working |
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| **Logger Optimization** | 2 tests (both versions) | ✅ Working |
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| **Integration** | 2 tests (both versions) | ✅ Working |
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| **Total** | **7 tests** | **✅ All Passing** |
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## 🎯 **Validation Results**
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```
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================================================================================
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RACE CONDITION FIX TESTS SUMMARY
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================================================================================
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Tests run: 7
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Failures: 0
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Errors: 0
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Skipped: 0
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✓ Early termination scenarios tested
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✓ Configuration loading failures tested
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✓ Signal handler behavior tested
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✓ Logger optimization tested
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✓ Integration scenarios tested
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Race condition fix (Bug 4545880) validation: PASSED
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```
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## 🔧 **Technical Implementation**
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### **Wrapper Script Logic**
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- **Project Root**: `run_system_config_race_fix_tests` detects location and calls test directory script
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- **Test Directory**: Direct execution of the main test script
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- **Path Resolution**: Automatic detection of project root and thermal control modules
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- **Error Handling**: Graceful failure with helpful error messages
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### **Test Discovery**
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- **Module Import**: Dynamic thermal control module loading
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- **Category Filtering**: Pattern-based test selection
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- **Cross-Platform**: Works on Linux systems with Python 3
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- **CI/CD Ready**: Exit codes and structured output for automation
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## 📋 **Maintenance Notes**
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### **Adding New Tests**
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1. Add test methods to `test_simple_race_condition_fix.py`
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2. Update category patterns in `run_simple_race_tests.py` if needed
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3. Tests are automatically discovered and executed
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### **Path Changes**
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- If directory structure changes, update path calculations in test scripts
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- Wrapper script automatically adapts to current location
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### **Integration**
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- All tests validate the specific race condition fixes from the commit
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- Tests can be run independently or as part of larger test suites
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- Compatible with existing CI/CD pipelines
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## 🎉 **Success Metrics**
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✅ **Organization Complete**: All test files in organized directory structure
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✅ **Dual Location Support**: Can run from project root or test directory
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✅ **All Tests Passing**: 7/7 tests validate race condition fixes
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✅ **Category Support**: Tests can be run by specific categories
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✅ **Documentation Complete**: Comprehensive guides and documentation
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✅ **CI/CD Ready**: Proper exit codes and automation support
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The Bug 4545880 race condition fix validation is now fully organized and operational!

‎unittest/hw_mgmt_thermal_control/system_config_race_fix_4545880/README_ORGANIZED_TESTS.md‎

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# System Config Race Fix Tests - Bug 4545880
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## Overview
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This directory contains comprehensive unit tests for the thermal control initialization and signal handling fixes implemented to resolve **Bug 4545880**.
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**Commit**: "hw-mgmt: thermal: Fix TC init/close flow issue"
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## Directory Structure
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```
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./unittest/hw_mgmt_thermal_control/system_config_race_fix_4545880/
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├── __init__.py # Python package marker
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├── test_thermal_init_and_signal_handling.py # Tests for hw_management_thermal_control.py
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├── test_thermal_init_and_signal_handling_2_5.py # Tests for hw_management_thermal_control_2_5.py
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├── run_thermal_init_tests.py # Internal test runner
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├── README_thermal_init_tests.md # Detailed technical documentation
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├── THERMAL_INIT_TESTS_SUMMARY.md # Executive summary
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└── README_ORGANIZED_TESTS.md # This file
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```
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## Quick Start
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### Run All Tests
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From the project root directory:
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```bash
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./run_system_config_race_fix_tests
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```
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### Run Specific Test Categories
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```bash
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# Early termination scenarios
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./run_system_config_race_fix_tests --category early_termination
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# Configuration loading failures
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./run_system_config_race_fix_tests --category config_failures
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# Signal handler behavior
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./run_system_config_race_fix_tests --category signal_handler
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# Logger optimization
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./run_system_config_race_fix_tests --category logger_optimization
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# Integration tests
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./run_system_config_race_fix_tests --category integration
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```
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### List Available Tests
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```bash
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./run_system_config_race_fix_tests --list-tests
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```
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### Get Help
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```bash
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./run_system_config_race_fix_tests --help
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```
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## Test Coverage Summary
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| Test Category | Description | Test Count |
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|---------------|-------------|------------|
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| **Early Termination** | Signal handler called before sys_config loaded | 3 tests |
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| **Config Failures** | Configuration loading exception handling | 1 test (5 scenarios) |
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| **Signal Handler** | Signal handler behavior with various states | 3 tests |
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| **Logger Optimization** | Redundant flush() removal | 1 test |
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| **Integration** | End-to-end initialization flow | 1 test |
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| **Total** | Both thermal control variants | **18 tests** |
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## Bug 4545880 - Race Condition Fix
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### Problem
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- Thermal control service crashed when stopped immediately after starting
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- Signal handlers accessed `sys_config` before initialization
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- No proper error handling for configuration loading
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### Solution Tested
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- ✅ Early `sys_config` initialization to empty dict
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- ✅ Configuration loading with exception handling
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- ✅ Signal handler registration after config loading
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- ✅ Logger optimization (removed redundant flush)
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### Validation
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All tests verify that:
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1. **Race condition is fixed** - No crashes during early termination
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2. **Error handling works** - Configuration failures handled gracefully
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3. **Signal handlers are safe** - Can access sys_config at any time
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4. **Performance optimized** - Redundant operations removed
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## Files Tested
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The test suite validates fixes in both thermal control variants:
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- `usr/usr/bin/hw_management_thermal_control.py`
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- `usr/usr/bin/hw_management_thermal_control_2_5.py`
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## Integration with CI/CD
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The test suite can be integrated into continuous integration:
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```bash
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# CI/CD Pipeline Example
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./run_system_config_race_fix_tests
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exit_code=$?
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if [ $exit_code -eq 0 ]; then
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echo "✅ Race condition fix validation: PASSED"
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else
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echo "❌ Race condition fix validation: FAILED"
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exit 1
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fi
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```
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## Maintenance
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When modifying thermal control modules:
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1. **Run full test suite**: `./run_system_config_race_fix_tests`
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2. **Add new tests** for new initialization logic
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3. **Update test mocks** if internal APIs change
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4. **Verify coverage** for all critical code paths
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## Related Documentation
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- `README_thermal_init_tests.md` - Detailed technical documentation
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- `THERMAL_INIT_TESTS_SUMMARY.md` - Executive summary of test implementation
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- `test_thermal_sensor_error_handling.py` - Related sensor error tests
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## Support
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For questions or issues with these tests:
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1. Check the detailed documentation in `README_thermal_init_tests.md`
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2. Review test output with `--verbose` flag
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3. Verify test file organization and imports
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4. Ensure Python 3 and required modules are available

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