backend/scripts/test_hf_reasoning.py

import sys
import os
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..')))

from backend.app.reasoning import reasoning_engine

def test_engine():
    print("Testing ReasoningEngine with Hugging Face...")
    print(f"Model: {reasoning_engine.model}")
    
    try:
        start = time.time()
        answer = reasoning_engine.generate_answer(
            "What is the capital of France?", 
            ["France is a country in Europe. Its capital is Paris."], 
            []
        )
        print("Answer generated:")
        print(answer)
        print(f"Time: {time.time() - start:.2f}s")
    except Exception as e:
        with open("verify.log", "w") as f:
            f.write(f"FAILED with Llama 3: {e}\n")
            
            print("\nTesting with public model (gpt2)...")
            try:
                from huggingface_hub import InferenceClient
                from backend.app.config import config
                client = InferenceClient(token=config.HUGGINGFACE_API_KEY)
                res = client.text_generation("Hello", model="gpt2", max_new_tokens=10)
                msg = f"GPT2 Success: {res}\nDiagnosis: Token is valid, but Llama 3 access is denied (403)."
                print(msg)
                f.write(msg)
            except Exception as e2:
                msg = f"GPT2 Failed: {e2}\nDiagnosis: Token is invalid or has no inference permissions."
                print(msg)
                f.write(msg)

import time
if __name__ == "__main__":
    test_engine()