| import subprocess | |
| import sys | |
| # 1. Let's create a sample code string with a DELIBERATE bug (2 + 2 = 5!) | |
| buggy_code = """ | |
| def add_numbers(a, b): | |
| return a + b + 1 # BUG: Flipped logic / off-by-one error! | |
| """ | |
| # 2. Let's attach an objective unit test assertion | |
| unit_test = """ | |
| assert add_numbers(2, 2) == 4, "Math failed: 2 + 2 should be 4!" | |
| print("ALL TESTS PASSED!") | |
| """ | |
| # We combine them into a single executable payload | |
| full_payload = buggy_code + "\n" + unit_test | |
| print("Launching isolated child subprocess to verify code...") | |
| try: | |
| # 3. We spawn a child python process to execute the payload with a 2-second timeout! | |
| result = subprocess.run( | |
| [sys.executable, "-c", full_payload], | |
| capture_output=True, # Capture what prints to screen | |
| text=True, # Decode output as strings, not raw bytes | |
| timeout=2.0, # Kill process if it loops for more than 2 seconds | |
| ) | |
| # 4. Evaluate the Exit Code (0 = Success, anything else = Crash/Test Failure) | |
| if result.returncode == 0: | |
| print("SANDBOX RESULT: CLEAN (All unit tests passed!)") | |
| print("Output:", result.stdout.strip()) | |
| else: | |
| print("SANDBOX RESULT: BUG DETECTED (Unit test failed!)") | |
| print("Error Traceback:\n", result.stderr.strip()) | |
| except subprocess.TimeoutExpired: | |
| print("SANDBOX RESULT: INFINITE LOOP TERMINATED (Exceeded 2.0s limit!)") |