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[test] running tests by name
by Perepelitsa Roman 18 Jul '06

18 Jul '06

Hi, I have implementation of feature which was requested several times. It allows you to run tests (implemented with the help of boost.tests) by name. I attached 3 files. 1. filter.hpp should be copied to boost/test/detail. 2. framework.ipp should be copied to boost/test/impl. (after copying files you will probably need to rebuild boost.test) 3. example.cpp contains example of usage. Here is how it works. Each test case receives the name in the form Suite1/Suite2/.../SuiteN/CaseName. For example there is test cases is example.cpp with name "Master Test Suite/A/Foo". Test executable accepts new argument --filter=<regex>. It allows you to run that and only that tests which names match given regex. Note: library implicitly adds ".*" to the beginning and to the end of given regex expression. For example if you run example.cpp without arguments, you will see: Foo in A Bar in A Foo in B Bar in B If you run it with argument "--filter=Foo", you will see: Foo in A Foo in B If you want to run all tests in the suite "A", you can try "--filter=/A/" or "--filter=^Master Test Suite/A/". P.S. You can use this feature without modification of boost.test sources. Just call boost::test_suite_detail::filter in your implementation of init_unit_test_suite. HTH, Roman Perepelitsa.

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boost::thread and member function
by King, Steven R 17 Jul '06

17 Jul '06

Hello All, Newbie question, thanks for your patience. I'm trying to pass a member function as the callback in boost::thread. Given this: class my_class { ... void foo(void); ... }; Instincts told me to do this: boost::thread my_thread( std::mem_fun(&my_class::foo) ); That didn't work and I discovered that boost::thread expects a boost::function0<void> instead. Can somebody please help me bridge the gap between std::mem_fun and boost::function0? I'm using gcc 4.1 on Linux and Boost 1.33.1 Cheers, -steve

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[Serialization] Problem serializing via base class ptr
by Guy Létourneau 17 Jul '06

17 Jul '06

Hello, I need to develop a generic data storage layer. Its job is to handle the serialization of all objects that need to be persistent in my system and handle management of archives, backups and restores and so forth. The most important point is that it must stay generic, i.e. have no knowledge of the type of objects being passed by other modules in the system. Because of this, I define a base class NonVolatileData from which all data classes in the system will derive: /////////////////////////////////////////////////////////////////////// // Base class class NonVolatileData { friend class boost::serialization::access; public: NonVolatileData(){ i = 1; }; virtual ~NonVolatileData(){}; protected: virtual void Dummy(){}; int i; template <class Archive> void serialize( Archive& ar, const unsigned int version ) { ar & i; } }; BOOST_CLASS_TRACKING(NonVolatileData, boost::serialization::track_never) class SomeData: public NonVolatileData { friend class boost::serialization::access; public: SomeData () { }; ~SomeData () { }; void SetValue( std::string& Address ) { this->Address = Address; } void Dummy() { } private: template <class Archive> void serialize( Archive& ar, const unsigned int version ) { ar & boost::serialization::base_object<NonVolatileData>(*this); ar& Address; } std::string Address; }; BOOST_CLASS_TRACKING(SomeData, boost::serialization::track_never) ///////////////////////////////////////////////////////////////// My data storage interface will take a ptr to the base class i.e. Save(NonVolatileData* data) so the serialization will be performed through a ptr to the base class. I've read the documentation multiple times and I'm still unable to make that work correctly. When a do a save, only the base class is serialized even though the base class is polymorphic. I've tried using the BOOST_CLASS_EXPORT_GUID macro the force a registration of my derived class without success. I've also checked the example from demo.cpp. It uses the direct call to register_type() but in my case, I don't want to change the code everytime a new class is defined in the system so I went with option 2 (the macro). There's probably a subtle detail I do not do correctly (polite way of saying I'm missing something :-)). Thanks for your help, Guy Letourneau

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[serialization] Difficulty getting serialization to work.
by Dieter Buys 17 Jul '06

17 Jul '06

Hi, I am experiencing difficulties in getting the Boost serialization library to work. There seems to be an error related to object tracking, as I am getting BOOST_STATIC_ASSERTION_FAILURE<x>. I am trying to figure it out using the attached test code. The documentation claims I should be putting a BOOST_SERIALIZATION_TRACKING() macro in my file (presumably directly after my class definition). I did a full text search over the entire source of the library and nowhere did this preprocessor macro exist. There is a BOOST_CLASS_TRACKING() macro, which I tried putting in my source with tracking_never. That seems to have made no appreciable difference. I have absolutely no idea what I am supposed to do. :( Any help would be appreciated. Thanks, ~ Dieter Buys #include <fstream> #include <boost/shared_ptr.hpp> #include <boost/serialization/serialization.hpp> #include <boost/serialization/tracking.hpp> #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> class gps_position { private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & degrees; ar & minutes; ar & seconds; } int degrees; int minutes; float seconds; public: gps_position() {}; gps_position(int d, int m, float s) : degrees(d), minutes(m), seconds(s) {} }; // BOOST_CLASS_TRACKING(gps_position, track_never) int main(void) { std::ofstream ofs("serial.txt"); gps_position *g = new gps_position(35, 59, 24.567f); // const gps_position g(35, 59, 24.567f); { boost::archive::text_oarchive oa(ofs); oa << g; } delete g; gps_position *newg; // gps_position newg; { std::ifstream ifs("serial.txt", std::ios::binary); boost::archive::text_iarchive ia(ifs); ia >> newg; } delete newg; return 0; }

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Re: [Boost-users] [Test] Running individual test cases
by Sohail Somani 17 Jul '06

17 Jul '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Gennadiy Rozental > Sent: Monday, July 17, 2006 10:19 AM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] [Test] Running individual test cases > > If you could tell me what to read or change to get the > framework to do > > this, I'd be happy. > > It's not simple chnage. It requires modifications on many > levels. You will > have to wait will 1.35. Sorry. That's alright. If I can help in any way, feel free to ask :)

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Re: [Boost-users] [Test] Running individual test cases
by Sohail Somani 17 Jul '06

17 Jul '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Gennadiy Rozental > Sent: Monday, July 17, 2006 9:31 AM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] [Test] Running individual test cases > > > "Sohail Somani" <s.somani(a)fincad.com> wrote in message > news:1C1EBEF8DBACDC439D038EA051674EC735B941@xbox.financialcad.com... > > Hi, > > > > I recall a thread about running individual test cases by name. Might > > even have been yesterday. Anyway, I'd like to put in a "me > too" vote for > > that and also ask what I can currently do to continue using the auto > > registration capability but perhaps modify it to only > register certain > > functions? Would I need to create my own test suite? > > I could always use compile time switches This *could* work, but imho it really prevents the quick turn around you need when debugging unit tests. I personally would prefer the test runner to by default run all tests and given a bunch of --run_test=test1 --run_test=test2 command line arguments, it runs only those tests. If you could tell me what to read or change to get the framework to do this, I'd be happy. Thanks Sohail

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Boost Test usage
by Matt Schuckmann 17 Jul '06

17 Jul '06

I've been looking into using the boost test library to start testing some of our code and it looks pretty good. I've gone through the documentation and several of the examples and there are a couple of things I don't really get I don't see how the test_suite class lets you create do anything special with regards to building multi-level tests, none of the examples really show multilevel test hierarchy and how it really helps me. It looks like it's really just a way of using a class to group test functions instead of a series of free functions, am I missing something here? I really expected more from a feature like this, I'm thinking of things like Command line control over which test suites to run, I mean you name the test suites but you don't appear to do anything with that name Reporting success and failure grouped by test suite Am I missing something here, is this stuff possible and the examples don't show it or are these feature that are yet to come or haven't been thought of? I don't see a good example for how I should setup a unit test for a real world type project you know an extensive example that covers inputs, outputs, multiple test suites, etc all in one example. In my case I've a got a library with several independent classes and functions that I'd like to test and I'm not sure if I should be creating multiple executables (1 for each test case) or a single executable that tests everything, I don't understand the pros and cons of either case. It seems like I want the single executable that can test everything or that can test just want I tell it to test. Any info would be appreciated. Matt S.

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[Test] Running individual test cases
by Sohail Somani 17 Jul '06

17 Jul '06

Hi, I recall a thread about running individual test cases by name. Might even have been yesterday. Anyway, I'd like to put in a "me too" vote for that and also ask what I can currently do to continue using the auto registration capability but perhaps modify it to only register certain functions? Would I need to create my own test suite? By the way, boost test has been really great to me so far, its been very useful while testing my latest project. Keep up the good work! Thanks, Sohail

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[thread] Keeping leak detectors still...
by Daniel Krügler 17 Jul '06

17 Jul '06

Hello!, Its a well-known issue, that Boost-Thread users on Windows machines have observed that popular leak reporting tools loudly notify a missing delete for the dynamically allocated mutex in tss_hooks.cpp. A good overview for this discussion can be found in: http://groups.google.de/group/boost-list/browse_thread/thread/f5788746e458d… While I don't want to heat up the discussion whether this is actually a "leak" or not, many code style guides of companies give very bad points on such behaviour, so I would like to ask whether it is possible to ensure a proper clean-up of this by code (before the system does), to keep those detector programs quiet... Simple question of a non-expert: Couldn't one simply change the current impl of on_process_exit in tss_hooks.cpp to extern "C" BOOST_THREAD_DECL void on_process_exit(void) { { // Wrap into scope boost::call_once(init_threadmon_mutex, once_init_threadmon_mutex); boost::mutex::scoped_lock lock(*threadmon_mutex); BOOST_ASSERT(attached_thread_count == 0); //Free the tls slot if one was allocated. if (tls_key != invalid_tls_key) { TlsFree(tls_key); tls_key = invalid_tls_key; } } delete threadmon_mutex; // Shouldn't that be the last point of access?? threadmon_mutex = 0; // For those who prefer a defined value... } OK, I see that the docs for this function says: "Must not be omitted; may be called multiple times." Question is: Does there exist at least the guarantee, that there is always the same number of on_process_enter and on_process_exit calls? If yes: Wouldn't a simply reference counting scheme using one of the atomic integer incrementing/decrementing functions (also provided by boost via interlocked.hpp) allow a thread-save deletion of that mutex object? Thanks for your patience, Daniel Krügler

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[filesystem] Is it a bug or not
by Ovanes Markarian 17 Jul '06

17 Jul '06

Hi! On my Windows computer I have cygwin installed and it created the following file names in directory c:\ %backup%~ .emacs .emacs~ .tcltcinfo.txt The last file was created by some cygwin app. Now if I try to iterate through this directory: for(fs::directory_iterator dir_itr( full_path ), end_iter; dir_itr != end_iter; ++dir_itr) { try { if(!fs::is_directory(*dir_itr)) { std::pair<std::string, std::string> file_name( fs::basename(dir_itr->leaf()), fs::extension(dir_itr->leaf()) ); std::cout << "fname: " << file_name.first << ", extension: " << file_name.second << std::endl; } } catch(std::exception const& ex ) { std::cout << dir_itr->leaf() << " " << ex.what() << std::endl; } } Exceptions are thrown: %backup%~ boost::filesystem::path: invalid name "%backup%~" in path: "%backup%~" .emacs boost::filesystem::path: invalid name ".emacs" in path: ".emacs" .emacs~ boost::filesystem::path: invalid name ".emacs~" in path: ".emacs~" .tcltcinfo.txt boost::filesystem::path: invalid name ".tcltcinfo.txt" in path: ".tcltcinfo.txt" I know that it is impossible to create these file manually, but software is allowed to do this. Therefore I don't think these exceptions are correct. With Kind Regards, Ovanes Markarian

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