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Dir : ~/lib/python3/dist-packages/twisted/runner/test/

View File Name : test_procmontap.py

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Tests for L{twisted.runner.procmontap}.
"""

from twisted.python.usage import UsageError
from twisted.runner import procmontap as tap
from twisted.runner.procmon import ProcessMonitor
from twisted.trial import unittest


class ProcessMonitorTapTests(unittest.TestCase):
    """
    Tests for L{twisted.runner.procmontap}'s option parsing and makeService
    method.
    """

    def test_commandLineRequired(self):
        """
        The command line arguments must be provided.
        """
        opt = tap.Options()
        self.assertRaises(UsageError, opt.parseOptions, [])

    def test_threshold(self):
        """
        The threshold option is recognised as a parameter and coerced to
        float.
        """
        opt = tap.Options()
        opt.parseOptions(["--threshold", "7.5", "foo"])
        self.assertEqual(opt["threshold"], 7.5)

    def test_killTime(self):
        """
        The killtime option is recognised as a parameter and coerced to float.
        """
        opt = tap.Options()
        opt.parseOptions(["--killtime", "7.5", "foo"])
        self.assertEqual(opt["killtime"], 7.5)

    def test_minRestartDelay(self):
        """
        The minrestartdelay option is recognised as a parameter and coerced to
        float.
        """
        opt = tap.Options()
        opt.parseOptions(["--minrestartdelay", "7.5", "foo"])
        self.assertEqual(opt["minrestartdelay"], 7.5)

    def test_maxRestartDelay(self):
        """
        The maxrestartdelay option is recognised as a parameter and coerced to
        float.
        """
        opt = tap.Options()
        opt.parseOptions(["--maxrestartdelay", "7.5", "foo"])
        self.assertEqual(opt["maxrestartdelay"], 7.5)

    def test_parameterDefaults(self):
        """
        The parameters all have default values
        """
        opt = tap.Options()
        opt.parseOptions(["foo"])
        self.assertEqual(opt["threshold"], 1)
        self.assertEqual(opt["killtime"], 5)
        self.assertEqual(opt["minrestartdelay"], 1)
        self.assertEqual(opt["maxrestartdelay"], 3600)

    def test_makeService(self):
        """
        The command line gets added as a process to the ProcessMontor.
        """
        opt = tap.Options()
        opt.parseOptions(["ping", "-c", "3", "8.8.8.8"])
        s = tap.makeService(opt)
        self.assertIsInstance(s, ProcessMonitor)
        self.assertIn("ping -c 3 8.8.8.8", s.processes)