# coding: utf-8

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from tests.performance import *


@requirements(num_moms=2)
class JobRerunFileTransferPerf(TestPerformance):
    """
    This test suite is for testing the performance of job script
    and job output (stdout) transfers in case of rerun
    """

    def setUp(self):
        TestPerformance.setUp(self)

        if len(self.moms) != 2:
            self.logger.error('test requires two MoMs as input, ' +
                              '  use -p moms=<mom1>:<mom2>')
            self.assertEqual(len(self.moms), 2)

        # PBSTestSuite returns the moms passed in as parameters as dictionary
        # of hostname and MoM object
        self.momA = self.moms.values()[0]
        self.momB = self.moms.values()[1]
        self.momA.delete_vnode_defs()
        self.momB.delete_vnode_defs()

        self.hostA = self.momA.shortname
        self.hostB = self.momB.shortname

        self.server.manager(MGR_CMD_SET, SERVER, {'log_events': 4095})

        self.server.manager(MGR_CMD_SET, SERVER, {'job_requeue_timeout': 1000})

    @timeout(600)
    def test_huge_job_file(self):
        j = Job(TEST_USER, attrs={
                ATTR_N: 'huge_job_file', 'Resource_List.select': '1:host=%s'
                % self.momB.shortname})

        test = []
        test += ['dd if=/dev/zero of=file bs=1024 count=0 seek=250000\n']
        test += ['cat file\n']
        test += ['sleep 10000\n']

        j.create_script(test, hostname=self.server.client)

        now1 = int(time.time())
        jid = self.server.submit(j)
        self.server.expect(
            JOB, {'job_state': 'R', 'substate': 42}, id=jid,
            max_attempts=30, interval=5)
        now2 = int(time.time())
        self.logger.info("Job %s took %d seconds to start\n",
                         jid, (now2 - now1))
        self.perf_test_result((now2 - now1), "job_start_time", "sec")

        # give a few seconds to job to create large spool file
        time.sleep(5)

        now1 = int(time.time())
        self.server.rerunjob(jid)
        self.server.expect(
            JOB, {'job_state': 'R', 'substate': 42}, id=jid,
            max_attempts=500, interval=5)
        now2 = int(time.time())
        self.logger.info("Job %s took %d seconds to rerun\n",
                         jid, (now2 - now1))
        self.perf_test_result((now2 - now1), "job_return_time", "sec")