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#!/usr/bin/env vpython3
# Copyright 2024 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""File for testing exception_recorder.py."""
import os
import sys
import tempfile
import unittest
import unittest.mock
_BUILD_UTIL_PATH = os.path.abspath(
os.path.join(os.path.dirname(__file__), '..', '..'))
if _BUILD_UTIL_PATH not in sys.path:
sys.path.insert(0, _BUILD_UTIL_PATH)
from lib.proto import exception_recorder
from lib.proto.exception_occurrences_pb2 import ExceptionOccurrences
class MyClass:
class MyException(Exception):
pass
class ExceptionRecorderTest(unittest.TestCase):
def myException(self):
raise MyClass.MyException('Hello')
def test_register(self) -> None:
exception_recorder.clear()
with self.assertRaises(MyClass.MyException) as cm:
self.myException()
record = exception_recorder.register(cm.exception)
self.assertEqual(record.name, 'MyClass.MyException')
self.assertTrue(len(record.stacktrace) > 0)
self.assertTrue(record.occurred_time.ToSeconds() > 0)
self.assertEqual(len(exception_recorder._records), 1)
def test_to_dict(self) -> None:
exception_recorder.clear()
with self.assertRaises(MyClass.MyException) as cm:
self.myException()
record = exception_recorder.register(cm.exception)
actual = exception_recorder.to_dict()
self.assertIn('@type', actual)
self.assertIn(ExceptionOccurrences.DESCRIPTOR.full_name, actual['@type'])
actual_record = actual['datapoints'][0]
self.assertEqual(actual_record['name'], record.name)
self.assertEqual(actual_record['stacktrace'], record.stacktrace)
def test_dump(self) -> None:
exception_recorder.clear()
with self.assertRaises(MyClass.MyException) as cm:
self.myException()
record = exception_recorder.register(cm.exception)
with tempfile.TemporaryDirectory() as tmpdir:
exception_recorder.dump(tmpdir)
file_path = os.path.join(
tmpdir, exception_recorder.EXCEPTION_OCCURRENCES_FILENAME)
self.assertTrue(os.path.exists(file_path))
if __name__ == '__main__':
unittest.main()
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