test/server_poll.py: use absolute path for test

import unittest

import requests

import time

import os

from modules.paths import script_path

def run_tests(proc, test_dir):

                break

    if proc.poll() is None:

        if test_dir is None:

            test_dir = "test"

        suite = unittest.TestLoader().discover(test_dir, pattern="*_test.py", top_level_dir="test")

            test_dir = os.path.join(script_path, "test")

        suite = unittest.TestLoader().discover(test_dir, pattern="*_test.py", top_level_dir=test_dir)

        result = unittest.TextTestRunner(verbosity=2).run(suite)

        return len(result.failures) + len(result.errors)

    else: