from datetime import timedelta
from ea_chatbot.api.utils import create_access_token, decode_access_token

def test_create_and_decode_access_token():
    """Test that a token can be created and then decoded."""
    data = {"sub": "test@example.com", "user_id": "123"}
    token = create_access_token(data)
    
    decoded = decode_access_token(token)
    assert decoded["sub"] == data["sub"]
    assert decoded["user_id"] == data["user_id"]
    assert "exp" in decoded

def test_decode_invalid_token():
    """Test that an invalid token returns None."""
    assert decode_access_token("invalid-token") is None

def test_expired_token():
    """Test that an expired token returns None."""
    data = {"sub": "test@example.com"}
    # Create a token that expired 1 minute ago
    token = create_access_token(data, expires_delta=timedelta(minutes=-1))
    
    assert decode_access_token(token) is None