The type used for functions that operate on test fixtures. This is
used for the fixture setup and teardown functions as well as for the
testcases themselves.
user_data is a pointer to the data that was given when registering
the test case.
fixture will be a pointer to the area of memory allocated by the
test framework, of the size requested. If the requested size was
zero then fixture will be equal to user_data.
The type used for functions that operate on test fixtures. This is used for the fixture setup and teardown functions as well as for the testcases themselves.
user_datais a pointer to the data that was given when registering the test case.fixturewill be a pointer to the area of memory allocated by the test framework, of the size requested. If the requested size was zero thenfixturewill be equal touser_data.