# coding: utf-8

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import subprocess
from subprocess import PIPE, Popen

from tests.functional import *


class Test_pbs_python(TestFunctional):
    """
    This test suite tests pbs_python executable
    and makes sure it works fine.
    """

    def test_pbs_python(self):
        """
        This method spawns a python process using
        pbs_python and checks for the result
        """
        fn = self.du.create_temp_file(prefix='test', suffix='.py',
                                      body="print(\"Hello\")", text=True)
        self.logger.info("created temp python script " + fn)
        pbs_python = os.path.join(self.server.pbs_conf['PBS_EXEC'],
                                  "bin", "pbs_python")
        msg = ['Hello']
        cmd = [pbs_python] + [fn]
        rc = self.du.run_cmd(cmd=cmd, sudo=True)
        self.assertTrue('out' in rc)
        self.assertEqual(rc['out'], msg)

    def test_pbs_python_zero_size(self):
        """
        This method verifies that there are no shenanigans
        when using pbs.size('0mb') et al
        """
        fn = self.du.create_temp_file(
            prefix='test_0mb', suffix='.py',
            body="import pbs\n"
                 "if pbs.size('10mb') > pbs.size('0mb'):\n"
                 "    pbs.event().accept()\n"
                 "else:\n"
                 "    pbs.event().reject()\n",
            text=True)
        self.logger.info("created test python script " + fn)
        fn2 = self.du.create_temp_file(
            prefix='dummy',
            suffix='.in',
            body="pbs.event().type=exechost_startup\n",
            text=True)
        self.logger.info("created dummy input file " + fn2)

        msg = "pbs.event().accept=True"
        pbs_python = os.path.join(self.server.pbs_conf['PBS_EXEC'],
                                  "bin", "pbs_python")
        cmd = [pbs_python] + ['--hook', '-i', fn2, fn]
        self.logger.info("running %s" % repr(cmd))
        rc = self.du.run_cmd(cmd=cmd, sudo=True)
        self.assertTrue('out' in rc, "command has no output")
        combined_output = '\n'.join(rc['out'])
        self.assertTrue(msg in combined_output, "Test hooklet rejected event")
        self.logger.info("Test hooklet accepted event")