Should I use the constructor/destructor of the test fixture or SetUp()/TearDown()?
The first thing to remember is that Google Test does not reuse the same test fixture object across multiple tests. For each TEST_F, Google Test will create a fresh test fixture object, immediately call SetUp(), run the test, call TearDown(), and then immediately delete the test fixture object. Therefore, there is no need to write a SetUp() or TearDown() function if the constructor or destructor already does the job. You may still want to use SetUp()/TearDown() in the following cases: • If the tear-down operation could throw an exception, you must use TearDown() as opposed to the destructor, as throwing in a destructor leads to undefined behavior and usually will kill your program right away. Note that many standard libraries (like STL) may throw when exceptions are enabled in the compiler. Therefore you should prefer TearDown() if you want to write portable tests that work with or without exceptions. • The Google Test team is considering making the assertion macros throw on platforms w
