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"""Tests for certbot.error_handler."""
import contextlib
import os
import signal
import sys
import unittest

import mock
# pylint: disable=unused-import, no-name-in-module
from acme.magic_typing import Callable, Dict, Union
# pylint: enable=unused-import, no-name-in-module

import certbot.tests.util as test_util

def get_signals(signums):
    """Get the handlers for an iterable of signums."""
    return dict((s, signal.getsignal(s)) for s in signums)


def set_signals(sig_handler_dict):
    """Set the signal (keys) with the handler (values) from the input dict."""
    for s, h in sig_handler_dict.items():
        signal.signal(s, h)


@contextlib.contextmanager
def signal_receiver(signums):
    """Context manager to catch signals"""
    signals = []
    prev_handlers = get_signals(signums)  # type: Dict[int, Union[int, None, Callable]]
    set_signals(dict((s, lambda s, _: signals.append(s)) for s in signums))
    yield signals
    set_signals(prev_handlers)


def send_signal(signum):
    """Send the given signal"""
    os.kill(os.getpid(), signum)


class ErrorHandlerTest(unittest.TestCase):
    """Tests for certbot.error_handler.ErrorHandler."""

    def setUp(self):
        from certbot import error_handler

        self.init_func = mock.MagicMock()
        self.init_args = set((42,))
        self.init_kwargs = {'foo': 'bar'}
        self.handler = error_handler.ErrorHandler(self.init_func,
                                                  *self.init_args,
                                                  **self.init_kwargs)

        # pylint: disable=protected-access
        self.signals = error_handler._SIGNALS

    def test_context_manager(self):
        exception_raised = False
        try:
            with self.handler:
                raise ValueError
        except ValueError:
            exception_raised = True

        self.assertTrue(exception_raised)
        self.init_func.assert_called_once_with(*self.init_args,
                                               **self.init_kwargs)

    # On Windows, this test kills pytest itself !
    @test_util.broken_on_windows
    def test_context_manager_with_signal(self):
        init_signals = get_signals(self.signals)
        with signal_receiver(self.signals) as signals_received:
            with self.handler:
                should_be_42 = 42
                send_signal(self.signals[0])
                should_be_42 *= 10

        # check execution stoped when the signal was sent
        self.assertEqual(42, should_be_42)
        # assert signals were caught
        self.assertEqual([self.signals[0]], signals_received)
        # assert the error handling function was just called once
        self.init_func.assert_called_once_with(*self.init_args,
                                               **self.init_kwargs)
        for signum in self.signals:
            self.assertEqual(init_signals[signum], signal.getsignal(signum))

    def test_bad_recovery(self):
        bad_func = mock.MagicMock(side_effect=[ValueError])
        self.handler.register(bad_func)
        try:
            with self.handler:
                raise ValueError
        except ValueError:
            pass
        self.init_func.assert_called_once_with(*self.init_args,
                                               **self.init_kwargs)
        bad_func.assert_called_once_with()

    # On Windows, this test kills pytest itself !
    @test_util.broken_on_windows
    def test_bad_recovery_with_signal(self):
        sig1 = self.signals[0]
        sig2 = self.signals[-1]
        bad_func = mock.MagicMock(side_effect=lambda: send_signal(sig1))
        self.handler.register(bad_func)
        with signal_receiver(self.signals) as signals_received:
            with self.handler:
                send_signal(sig2)
        self.assertEqual([sig2, sig1], signals_received)
        self.init_func.assert_called_once_with(*self.init_args,
                                               **self.init_kwargs)
        bad_func.assert_called_once_with()

    def test_sysexit_ignored(self):
        try:
            with self.handler:
                sys.exit(0)
        except SystemExit:
            pass
        self.assertFalse(self.init_func.called)

    def test_regular_exit(self):
        func = mock.MagicMock()
        self.handler.register(func)
        with self.handler:
            pass
        self.init_func.assert_not_called()
        func.assert_not_called()


class ExitHandlerTest(ErrorHandlerTest):
    """Tests for certbot.error_handler.ExitHandler."""

    def setUp(self):
        from certbot import error_handler
        super(ExitHandlerTest, self).setUp()
        self.handler = error_handler.ExitHandler(self.init_func,
                                                 *self.init_args,
                                                 **self.init_kwargs)

    def test_regular_exit(self):
        func = mock.MagicMock()
        self.handler.register(func)
        with self.handler:
            pass
        self.init_func.assert_called_once_with(*self.init_args,
                                               **self.init_kwargs)
        func.assert_called_once_with()

    # On Windows, this test kills pytest itself !
    @test_util.broken_on_windows
    def test_bad_recovery_with_signal(self):
        super(ExitHandlerTest, self).test_bad_recovery_with_signal()

if __name__ == "__main__":
    unittest.main()  # pragma: no cover

Filemanager

Name Type Size Permission Actions
__pycache__ Folder 0755
display Folder 0755
testdata Folder 0755
__init__.py File 20 B 0644
account_test.py File 14.45 KB 0644
acme_util.py File 3.18 KB 0644
auth_handler_test.py File 24 KB 0644
cert_manager_test.py File 28.07 KB 0644
cli_test.py File 19.94 KB 0644
client_test.py File 28.76 KB 0644
compat_test.py File 736 B 0644
configuration_test.py File 6.82 KB 0644
crypto_util_test.py File 13.56 KB 0644
eff_test.py File 5.94 KB 0644
error_handler_test.py File 5.31 KB 0644
errors_test.py File 1.8 KB 0644
hook_test.py File 16.67 KB 0644
lock_test.py File 3.84 KB 0644
log_test.py File 14.95 KB 0644
main_test.py File 82.52 KB 0644
notify_test.py File 2.07 KB 0644
ocsp_test.py File 6.27 KB 0644
renewal_test.py File 4.18 KB 0644
renewupdater_test.py File 5.32 KB 0644
reporter_test.py File 2.73 KB 0644
reverter_test.py File 18.7 KB 0644
storage_test.py File 42.89 KB 0644
util.py File 14.12 KB 0644
util_test.py File 21.58 KB 0644