def test_from_pidfile(self, mock_read, mock_init, mock_create_time):
mock_init.side_effect = psutil.NoSuchProcess(123)
mock_read.return_value = {}
self.assertIsNone(PostmasterProcess.from_pidfile(''))
mock_read.return_value = {"pid": "foo"}
self.assertIsNone(PostmasterProcess.from_pidfile(''))
mock_read.return_value = {"pid": "123"}
self.assertIsNone(PostmasterProcess.from_pidfile(''))
mock_init.side_effect = None
with patch.object(psutil.Process, 'pid', 123), \
patch.object(psutil.Process, 'ppid', return_value=124), \
patch('os.getpid', return_value=125) as mock_ospid, \
patch('os.getppid', return_value=126):
self.assertIsNotNone(PostmasterProcess.from_pidfile(''))
mock_create_time.return_value = 100000
mock_read.return_value = {"pid": "123", "start_time": "200000"}
self.assertIsNone(PostmasterProcess.from_pidfile(''))
mock_read.return_value = {"pid": "123", "start_time": "foobar"}
self.assertIsNotNone(PostmasterProcess.from_pidfile(''))
mock_ospid.return_value = 123
mock_read.return_value = {"pid": "123", "start_time": "100000"}
self.assertIsNone(PostmasterProcess.from_pidfile(''))
def test_from_pidfile(self, mock_init, mock_create_time):
mock_init.side_effect = psutil.NoSuchProcess(123)
self.assertEquals(PostmasterProcess.from_pidfile({}), None)
self.assertEquals(PostmasterProcess.from_pidfile({"pid": "foo"}), None)
self.assertEquals(PostmasterProcess.from_pidfile({"pid": "123"}), None)
mock_init.side_effect = None
with patch.object(psutil.Process, 'pid', 123), \
patch.object(psutil.Process, 'parent', return_value=124), \
patch('os.getpid', return_value=125) as mock_ospid, \
patch('os.getppid', return_value=126):
self.assertNotEquals(
PostmasterProcess.from_pidfile({"pid": "123"}), None)
mock_create_time.return_value = 100000
self.assertEquals(
PostmasterProcess.from_pidfile({
"pid": "123",
"start_time": "200000"
}), None)
self.assertNotEquals(
PostmasterProcess.from_pidfile({
"pid": "123",
"start_time": "foobar"
}), None)
mock_ospid.return_value = 123
self.assertEquals(
PostmasterProcess.from_pidfile({
"pid": "123",
"start_time": "100000"
}), None)
def test_from_pidfile(self, mock_init, mock_create_time):
mock_init.side_effect = psutil.NoSuchProcess(123)
self.assertEquals(PostmasterProcess.from_pidfile({}), None)
self.assertEquals(PostmasterProcess.from_pidfile({"pid": "foo"}), None)
self.assertEquals(PostmasterProcess.from_pidfile({"pid": "123"}), None)
mock_init.side_effect = None
with patch.object(psutil.Process, 'pid', 123), \
patch.object(psutil.Process, 'parent', return_value=124), \
patch('os.getpid', return_value=125) as mock_ospid, \
patch('os.getppid', return_value=126):
self.assertNotEquals(PostmasterProcess.from_pidfile({"pid": "123"}), None)
mock_create_time.return_value = 100000
self.assertEquals(PostmasterProcess.from_pidfile({"pid": "123", "start_time": "200000"}), None)
self.assertNotEquals(PostmasterProcess.from_pidfile({"pid": "123", "start_time": "foobar"}), None)
mock_ospid.return_value = 123
self.assertEquals(PostmasterProcess.from_pidfile({"pid": "123", "start_time": "100000"}), None)
def test_read_postmaster_pidfile(self):
with patch.object(builtins, 'open', Mock(side_effect=IOError)):
self.assertIsNone(PostmasterProcess.from_pidfile(''))
with patch.object(builtins, 'open', mock_open(read_data='123\n')):
self.assertIsNone(PostmasterProcess.from_pidfile(''))
