diff options
Diffstat (limited to 'indra/llcommon/tests/llinstancetracker_test.cpp')
| -rw-r--r-- | indra/llcommon/tests/llinstancetracker_test.cpp | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/indra/llcommon/tests/llinstancetracker_test.cpp b/indra/llcommon/tests/llinstancetracker_test.cpp index b34d1c5fd3..fda932c355 100644 --- a/indra/llcommon/tests/llinstancetracker_test.cpp +++ b/indra/llcommon/tests/llinstancetracker_test.cpp @@ -35,6 +35,7 @@ #include <vector> #include <set> #include <algorithm> // std::sort() +#include <stdexcept> // std headers // external library headers #include <boost/scoped_ptr.hpp> @@ -42,6 +43,11 @@ #include "../test/lltut.h" #include "wrapllerrs.h" +struct Badness: public std::runtime_error +{ + Badness(const std::string& what): std::runtime_error(what) {} +}; + struct Keyed: public LLInstanceTracker<Keyed, std::string> { Keyed(const std::string& name): @@ -53,6 +59,17 @@ struct Keyed: public LLInstanceTracker<Keyed, std::string> struct Unkeyed: public LLInstanceTracker<Unkeyed> { + Unkeyed(const std::string& thrw="") + { + // LLInstanceTracker should respond appropriately if a subclass + // constructor throws an exception. Specifically, it should run + // LLInstanceTracker's destructor and remove itself from the + // underlying container. + if (! thrw.empty()) + { + throw Badness(thrw); + } + } }; /***************************************************************************** @@ -229,4 +246,49 @@ namespace tut } ensure(! what.empty()); } + + template<> template<> + void object::test<8>() + { + set_test_name("exception in subclass ctor"); + typedef std::set<Unkeyed*> InstanceSet; + InstanceSet existing; + // We can't use the iterator-range InstanceSet constructor because + // beginInstances() returns an iterator that dereferences to an + // Unkeyed&, not an Unkeyed*. + for (Unkeyed::instance_iter uki(Unkeyed::beginInstances()), + ukend(Unkeyed::endInstances()); + uki != ukend; ++uki) + { + existing.insert(&*uki); + } + Unkeyed* puk = NULL; + try + { + // We don't expect the assignment to take place because we expect + // Unkeyed to respond to the non-empty string param by throwing. + // We know the LLInstanceTracker base-class constructor will have + // run before Unkeyed's constructor, therefore the new instance + // will have added itself to the underlying set. The whole + // question is, when Unkeyed's constructor throws, will + // LLInstanceTracker's destructor remove it from the set? I + // realize we're testing the C++ implementation more than + // Unkeyed's implementation, but this seems an important point to + // nail down. + puk = new Unkeyed("throw"); + } + catch (const Badness&) + { + } + // Ensure that every member of the new, updated set of Unkeyed + // instances was also present in the original set. If that's not true, + // it's because our new Unkeyed ended up in the updated set despite + // its constructor exception. + for (Unkeyed::instance_iter uki(Unkeyed::beginInstances()), + ukend(Unkeyed::endInstances()); + uki != ukend; ++uki) + { + ensure("failed to remove instance", existing.find(&*uki) != existing.end()); + } + } } // namespace tut |