def test_backup_logging_on_fatal_error(self):
sink = self._gen_sink_subclass()
with self.captured_logging(level=logging.ERROR) as captured:
with temporary_dir() as tmpdir:
sink.reset_log_location(tmpdir)
with mock.patch.object(sink,
'_try_write_with_flush',
autospec=sink) as mock_write:
mock_write.side_effect = ExceptionSink.ExceptionSinkError(
'fake write failure')
sink.log_exception('XXX')
errors = list(captured.errors())
self.assertEqual(2, len(errors))
def format_log_rx(log_file_type):
return '.*'.join(
re.escape(s) for s in [
"pants.base.exception_sink: Error logging the message 'XXX' to the {log_file_type} file "
"handle for".format(log_file_type=log_file_type),
"at pid {pid}".format(pid=os.getpid()),
"\nfake write failure",
])
assertRegex(self, str(errors[0]), format_log_rx('pid-specific'))
assertRegex(self, str(errors[1]), format_log_rx('shared'))
def test_backup_logging_on_fatal_error(caplog):
sink = _gen_sink_subclass()
with temporary_dir() as tmpdir:
sink.reset_log_location(tmpdir)
with unittest.mock.patch.object(sink,
"_try_write_with_flush",
autospec=sink) as mock_write:
mock_write.side_effect = ExceptionSink.ExceptionSinkError(
"fake write failure")
sink._log_exception("XXX")
errors = [
record for record in caplog.records if record.levelname == "ERROR"
]
assert len(errors) == 2
def assert_log(log_file_type: str, log):
assert bool(
re.search(
rf"Error logging the message 'XXX' to the {log_file_type} file handle for .* at "
rf"pid {os.getpid()}",
log.msg,
))
assert log.filename == "exception_sink.py"
assert_log("pid-specific", errors[0])
assert_log("shared", errors[1])
