from crewai.tools import tool
import subprocess

@tool("run_tests")
def run_tests(path: str = "tests/") -> str:
    """Run the pytest suite at the given path and return the result."""
    result = subprocess.run(
        ["pytest", path, "-q"], capture_output=True, text=True, timeout=120
    )
    output = result.stdout + result.stderr
    return output[-4000:] if len(output) > 4000 else output