# coding: utf-8

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from tests.functional import *


class TestReservationRequests(TestFunctional):

    """
    Various tests to verify behavoir of server
    in validating reservation requests
    """
    # Class variables
    bu = BatchUtils()
    fmt = "%a %b %d %H:%M:%S %Y"

    def test_duration_end_resv(self):
        """
        To test if reservations can be made by using
        duration and endtime, making the server calculate
        the starttime.
        """
        now = int(time.time())
        a = {'Resource_List.select': '1:ncpus=1',
             'reserve_end': now + 30,
             'reserve_duration': 5}
        R = Reservation(TEST_USER, attrs=a)
        R.unset_attributes(['reserve_start'])
        rid = self.server.submit(R)

        a = {'reserve_start': self.bu.convert_seconds_to_datetime(
            now + 25, self.fmt)}
        self.server.expect(RESV, a, id=rid)

    def test_duration_end_resv_fail(self):
        """
        To test if reservations made by using
        duration and endtime, making the server calculate
        the starttime and rejects if the starttime is before now.
        """
        a = {'Resource_List.select': '1:ncpus=1',
             'reserve_end': int(time.time()) + 15,
             'reserve_duration': 20}
        R = Reservation(TEST_USER, attrs=a)
        R.unset_attributes(['reserve_start'])
        rid = None
        try:
            rid = self.server.submit(R)
        except PbsSubmitError as e:
            self.assertTrue('Bad time specification(s)' in e.msg[0],
                            'Reservation Submit failed in an unexpected way')
        self.assertTrue(rid is None,
                        'Reservation Submit succeeded ' +
                        'when it should have failed')

    def test_start_dur_end_resv_fail(self):
        """
        Test to submit a job with a start, end, and duration
        where start + duration != end.
        """
        now = int(time.time())
        a = {'Resource_List.select': '1:ncpus=1',
             'reserve_start': now + 20,
             'reserve_end': now + 40,
             'reserve_duration': 10}
        R = Reservation(TEST_USER, attrs=a)
        rid = None
        try:
            rid = self.server.submit(R)
        except PbsSubmitError as e:
            self.assertTrue('Bad time specification(s)' in e.msg[0],
                            'Reservation Submit failed in an unexpected way')
        self.assertTrue(rid is None,
                        'Reservation Submit succeeded' +
                        'when it should have failed')

    def test_start_dur_end_resv(self):
        """
        Test to submit a job with a start, end, and duration
        where start + duration = end.
        """
        now = int(time.time())
        a = {'Resource_List.select': '1:ncpus=1',
             'reserve_start': now + 20,
             'reserve_end': now + 30,
             'reserve_duration': 10}
        R = Reservation(TEST_USER, attrs=a)
        rid = self.server.submit(R)

        a = {'reserve_state': (MATCH_RE, 'RESV_CONFIRMED|2')}
        self.server.expect(RESV, a, id=rid)

    def test_end_wall_resv(self):
        """
        Test to submit a job with end and walltime
        """
        now = int(time.time())
        a = {'Resource_List.select': '1:ncpus=1',
             'Resource_List.walltime': '10',
             'reserve_end': now + 30}
        R = Reservation(TEST_USER, attrs=a)
        R.unset_attributes(['reserve_start'])
        rid = self.server.submit(R)

        a = {'reserve_state': (MATCH_RE, 'RESV_CONFIRMED|2')}
        self.server.expect(RESV, a, id=rid)

    def test_rstat_longterm_resv(self):
        """
        Test to submit a reservation, where duration > INT_MAX.
        Check whether rstat displaying negative number.
        """
        now = int(time.time())
        a = {'Resource_List.select': '1:ncpus=1',
             'reserve_start': now + 3600,
             'reserve_end': now + 4294970895}
        r = Reservation(TEST_USER, attrs=a)
        rid = self.server.submit(r)
        a = {'reserve_state': (MATCH_RE, 'RESV_CONFIRMED|2')}
        self.server.expect(RESV, a, id=rid)

        out = self.server.status(RESV, 'reserve_duration', id=rid)[0][
            'reserve_duration']
        dur = int(out)
        self.assertGreater(dur, 0, 'Duration ' + str(dur) + 'is negative.')