Abseil Team 8495449f07 Fix data race in leak detection
TSAN identified a data race between updates to the states_ map (ex. in Mock::UnregisterLocked) and the iteration done in this destructor. Writes to the map use g_gmock_mutex, but the destructor does not acquire it. Acquiring the lock here fixes the data race.

It should only be possible to trigger this TSAN finding in cases where a mock object is deleted by a thread other than the main thread.

PiperOrigin-RevId: 591935393
Change-Id: I9dd1faa40058d78e165a91333346514b4b73365c
2023-12-18 10:14:49 -08:00
..
2021-01-13 20:59:12 -05:00
2023-12-18 10:14:49 -08:00

Googletest Mocking (gMock) Framework

Overview

Google's framework for writing and using C++ mock classes. It can help you derive better designs of your system and write better tests.

It is inspired by:

It is designed with C++'s specifics in mind.

gMock:

  • Provides a declarative syntax for defining mocks.
  • Can define partial (hybrid) mocks, which are a cross of real and mock objects.
  • Handles functions of arbitrary types and overloaded functions.
  • Comes with a rich set of matchers for validating function arguments.
  • Uses an intuitive syntax for controlling the behavior of a mock.
  • Does automatic verification of expectations (no record-and-replay needed).
  • Allows arbitrary (partial) ordering constraints on function calls to be expressed.
  • Lets a user extend it by defining new matchers and actions.
  • Does not use exceptions.
  • Is easy to learn and use.

Details and examples can be found here:

GoogleMock is a part of GoogleTest C++ testing framework and a subject to the same requirements.