gmock-spec-builders.h uses std::function (in MockFunction) but did not include <functional> to provide it. Apparently, it worked since the header must have been included by something else but better be safe than sorry.
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:
and 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, and
- is easy to learn and use.
Please note that code under scripts/generator/ is from the cppclean project and under the Apache License, which is different from Google Mock's license.
Google Mock is a part of Google Test C++ testing framework and a subject to the same requirements.