Function run_with_env_var

python/pyarrow/tests/test_misc.py:68–74

(env_var)

        """

    def run_with_env_var(env_var):
        env = os.environ.copy()
        env['ARROW_IO_THREADS'] = env_var
        res = subprocess.run([sys.executable, "-c", code], env=env,
                             capture_output=True)
        res.check_returncode()
        return res.stdout.decode(), res.stderr.decode()

    out, err = run_with_env_var('17')
    assert out.strip() == '17'