# coding: utf-8

# Copyright (C) 1994-2018 Altair Engineering, Inc.
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#
# This file is part of the PBS Professional ("PBS Pro") software.
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from tests.functional import *


class TestPbsInitScript(TestFunctional):
    """
    Testing PBS Pro init script
    """

    def test_env_vars_precede_pbs_conf_file(self):
        """
        Test PBS_START environment variables overrides values in pbs.conf file
        """
        conf = {'PBS_START_SERVER': '1', 'PBS_START_SCHED': '1',
                'PBS_START_COMM': '1', 'PBS_START_MOM': '1'}
        self.du.set_pbs_config(confs=conf)

        conf_path = self.du.parse_pbs_config()
        pbs_init = os.path.join(os.sep, conf_path['PBS_EXEC'],
                                'libexec', 'pbs_init.d')
        self.du.run_cmd(cmd=[pbs_init, 'stop'], sudo=True)

        conf['PBS_START_MOM'] = '0'
        self.du.set_pbs_config(confs=conf)

        cmd = ['sudo', 'PBS_START_SERVER=0', 'PBS_START_SCHED=0',
               'PBS_START_COMM=0', 'PBS_START_MOM=1',
               pbs_init, 'start']

        rc = self.du.run_cmd(cmd=cmd, as_script=True)
        output = rc['out']

        self.assertNotIn("PBS server", output)
        self.assertNotIn("PBS sched", output)
        self.assertNotIn("PBS comm", output)
        self.assertIn("PBS mom", output)

    def tearDown(self):
        TestFunctional.tearDown(self)
        # Above test leaves system in unusable state for PTL and PBS.
        # Hence restarting PBS explicitly
        PBSInitServices().restart()