TEST_F(ContextMapTest, AdjacentCleanupTest) {
ContextMap<string> mp;
std::weak_ptr<CoreContext> outerWeak;
std::weak_ptr<CoreContext> innerWeak;
// Add two contexts, and let one go out of scope
AutoCreateContext outer;
mp.Add("0", outer);
outerWeak = outer;
{
AutoCreateContext inner;
mp.Add("1", inner);
innerWeak = inner;
// Verify that we can find both contexts
std::shared_ptr<CoreContext> outerSearched = mp.Find("0");
ASSERT_TRUE(!!outerSearched.get()) << "Outer context just added, but couldn't be found";
std::shared_ptr<CoreContext> innerSearched = mp.Find("1");
ASSERT_TRUE(!!innerSearched.get()) << "Inner context just added, but couldn't be found";
}
// Inner should be 404 by now
ASSERT_TRUE(innerWeak.expired()) << "Unexpected outstanding reference to the inner context";
// Try to find the outer context. This should evict the inner context.
mp.Find("0");
ASSERT_EQ(1UL, mp.size()) << "Proximity eviction didn't function as expected";
}
TEST_F(ContextMapTest, VerifyWithThreadsPathological) {
ContextMap<size_t> mp;
// Context collection and exit race threads:
vector<std::shared_ptr<CoreContext>> contexts;
// Exit race controller:
AutoRequired<ExitRaceSignal> signal;
// Create a number of dependent contexts:
for(size_t i = 0; i < 100; i++) {
AutoCreateContext context;
contexts.push_back(context);
// Store a shared pointer
mp.Add(i, context);
// Start the context
context->Initiate();
}
// Set the signal:
signal->Signal();
// Verify that the map empties once our zero-count is hit:
for(size_t i = 0; i < contexts.size(); i++) {
contexts[i]->SignalShutdown(true);
}
// Clear the context collection:
contexts.clear();
EXPECT_EQ(0UL, mp.size()) << "Context map did not empty as expected";
}
// Returns the number of active contexts.
int GetNumContexts()
{
return (int) contexts.size();
}