TEST_F(DecoratorTest, VerifyDecoratorAwareness) {
auto filter = [](const Decoration<0>& zero, const Decoration<1>& one) {};
// Create a packet while the factory has no subscribers:
AutoRequired<AutoPacketFactory> factory;
auto packet1 = factory->NewPacket();
// Verify subscription-free status:
ASSERT_FALSE(packet1->HasSubscribers<Decoration<0>>()) << "Subscription exists where one should not have existed";
// Create another packet where a subscriber exists:
*factory += filter;
auto packet2 = factory->NewPacket();
// Verify the first packet still does not have subscriptions:
ASSERT_THROW(packet1->GetSatisfaction<decltype(filter)>(), autowiring_error) << "Subscription was incorrectly, retroactively added to a packet";
ASSERT_FALSE(packet1->HasSubscribers<Decoration<0>>()) << "Subscription was incorrectly, retroactively added to a packet";
ASSERT_EQ(0UL, packet1->GetDecorationTypeCount()) << "Subscription was incorrectly, retroactively added to a packet";
ASSERT_FALSE(packet1->HasSubscribers<Decoration<0>>()) << "Subscription was incorrectly, retroactively added to a packet";
// Verify the second one does:
ASSERT_NO_THROW(packet2->GetSatisfaction<decltype(filter)>()) << "Packet lacked an expected subscription";
ASSERT_EQ(2UL, packet2->GetDecorationTypeCount()) << "Incorrect count of expected decorations";
ASSERT_TRUE(packet2->HasSubscribers<Decoration<0>>()) << "Packet lacked an expected subscription";
}
TEST_F(AutoPacketFactoryTest, CanRemoveAddedLambda) {
AutoCurrentContext()->Initiate();
AutoRequired<AutoPacketFactory> factory;
auto desc = *factory += [](int&){};
auto packet1 = factory->NewPacket();
*factory -= desc;
auto packet2 = factory->NewPacket();
ASSERT_TRUE(packet1->Has<int>()) << "First packet did not posess expected decoration";
ASSERT_FALSE(packet2->Has<int>()) << "Decoration present even after all filters were removed from a factory";
}
TEST_F(DecoratorTest, VerifySimplePacketDecoration) {
AutoRequired<AutoPacketFactory> factory;
// Create the packet we will be persisting:
auto packet = factory->NewPacket();
// Add a few decorations on this packet:
auto& knownDec0 = packet->Decorate(Decoration<0>());
auto& knownDec1 = packet->Decorate(Decoration<1>());
auto& knownDec2 = packet->Decorate(Decoration<2>());
// Verify we can get these packets back--might throw exceptions here!
auto& dec0 = packet->Get<Decoration<0>>();
auto& dec1 = packet->Get<Decoration<1>>();
auto& dec2 = packet->Get<Decoration<2>>();
// Verify identities:
EXPECT_EQ(&knownDec0, &dec0) << "Decoration 0 returned at an incorrect location";
EXPECT_EQ(&knownDec1, &dec1) << "Decoration 1 returned at an incorrect location";
EXPECT_EQ(&knownDec2, &dec2) << "Decoration 2 returned at an incorrect location";
// Verify content correctness:
EXPECT_EQ(0, dec0.i) << "Decoration 0 incorrectly persisted";
EXPECT_EQ(1, dec1.i) << "Decoration 1 incorrectly persisted";
EXPECT_EQ(2, dec2.i) << "Decoration 2 incorrectly persisted";
}
IssuesPacketWaitsThenQuits(void) {
// Note: Don't do this in practice. This only works because we only inject this type
// into a context that's already running; normally, creating a packet from our ctor can
// cause an exception if we are being injected before Initiate is called.
AutoRequired<AutoPacketFactory> factory;
m_packet = factory->NewPacket();
}
TEST_F(AutoPacketFactoryTest, AddSubscriberTest) {
AutoCurrentContext ctxt;
AutoRequired<AutoPacketFactory> factory;
ctxt->Initiate();
bool first_called = false;
bool second_called = false;
factory->AddSubscriber(AutoFilterDescriptor([&first_called](int) {first_called = true; }));
{
std::vector<AutoFilterDescriptor> descs;
factory->AppendAutoFiltersTo(descs);
ASSERT_EQ(1UL, descs.size()) << "Expected exactly one AutoFilters after call to AddSubscriber";
}
*factory += [&second_called] (int v) {
second_called = true;
ASSERT_EQ(101, v) << "Decoration value mismatch";
};
{
std::vector<AutoFilterDescriptor> descs;
factory->AppendAutoFiltersTo(descs);
ASSERT_EQ(2UL, descs.size()) << "Expected exactly two AutoFilters on this packet";
}
auto packet = factory->NewPacket();
ASSERT_FALSE(first_called) << "Normal subscriber called too early";
ASSERT_FALSE(second_called) << "Subscriber added with operator+= called too early";
packet->DecorateImmediate(int(101));
ASSERT_TRUE(first_called) << "Normal subscriber never called";
ASSERT_TRUE(second_called) << "Subscriber added with operator+= never called";
}
TEST_F(AutoPacketFactoryTest, AutoPacketStatistics) {
// Create a context, fill it up, kick it off:
AutoCurrentContext ctxt;
AutoRequired<DelaysAutoPacketsOneMS> dapoms;
AutoRequired<AutoPacketFactory> factory;
ctxt->Initiate();
int numPackets = 20;
// Send 20 packets which should all be delayed 1ms
for (int i = 0; i < numPackets; ++i) {
auto packet = factory->NewPacket();
packet->Decorate(i);
}
// Shutdown our context, and rundown our factory
ctxt->SignalShutdown();
factory->Wait();
// Ensure that the statistics are not too wrong
// We delayed each packet by one ms, and our statistics are given in nanoseconds
double packetDelay = (double) std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::milliseconds(1)).count();
ASSERT_EQ(numPackets, factory->GetTotalPacketCount()) << "The factory did not get enough packets";
ASSERT_LE(packetDelay, factory->GetMeanPacketLifetime()) << "The mean packet lifetime was less than the delay on each packet";
}
TEST_F(AutoPacketFactoryTest, AutoPacketFactoryCycle) {
AutoCurrentContext()->Initiate();
std::weak_ptr<CoreContext> ctxtWeak;
std::weak_ptr<HoldsAutoPacketFactoryReference> hapfrWeak;
std::shared_ptr<AutoPacket> packet;
{
// Create a context, fill it up, kick it off:
AutoCreateContext ctxt;
CurrentContextPusher pshr(ctxt);
AutoRequired<HoldsAutoPacketFactoryReference> hapfr(ctxt);
ctxt->Initiate();
// A weak pointer is used to detect object destruction
ctxtWeak = ctxt;
hapfrWeak = hapfr;
// Trivial validation-of-reciept:
AutoRequired<AutoPacketFactory> factory;
{
auto trivial = factory->NewPacket();
trivial->Decorate((int) 54);
ASSERT_EQ(54, hapfr->m_value) << "A simple packet was not received as expected by an AutoFilter";
}
// Create a packet which will force in a back-reference:
packet = factory->NewPacket();
// Terminate the context:
ctxt->SignalShutdown();
// Verify that we can still decorate the packet and also that the packet is delivered to the factory:
packet->Decorate((int) 55);
// Relock, verify the value was received by the hapfr:
ASSERT_EQ(55, hapfr->m_value) << "AutoFilter did not receive a packet as expected";
}
// The context cannot go out of socpe until all packets in the context are out of scope
ASSERT_FALSE(ctxtWeak.expired()) << "Context went out of scope before all packets were finished being processed";
// Now we can release the packet and verify that everything gets cleaned up:
packet.reset();
ASSERT_TRUE(ctxtWeak.expired()) << "AutoPacketFactory incorrectly held a cyclic reference even after the context was shut down";
ASSERT_TRUE(hapfrWeak.expired()) << "The last packet from a factory was released; this should have resulted in teardown, but it did not";
}
TEST_F(AutoPacketFactoryTest, IsRunningWhilePacketIssued) {
AutoCurrentContext ctxt;
ctxt->Initiate();
AutoRequired<AutoPacketFactory> factory;
auto packet = factory->NewPacket();
ctxt->SignalShutdown();
ASSERT_TRUE(factory->IsRunning()) << "Factory should be considered to be running as long as packets are outstanding";
}
TEST_F(DecoratorTest, VerifyDecoratorAwareness) {
// Create a packet while the factory has no subscribers:
AutoRequired<AutoPacketFactory> factory;
auto packet1 = factory->NewPacket();
// Verify subscription-free status:
EXPECT_FALSE(packet1->HasSubscribers<Decoration<0>>()) << "Subscription exists where one should not have existed";
// Create another packet where a subscriber exists:
AutoRequired<FilterA> filterA;
auto packet2 = factory->NewPacket();
// Verify the first packet still does not have subscriptions:
EXPECT_FALSE(packet1->HasSubscribers<Decoration<0>>()) << "Subscription was incorrectly, retroactively added to a packet";
// Verify the second one does:
EXPECT_TRUE(packet2->HasSubscribers<Decoration<0>>()) << "Packet lacked an expected subscription";
}
TEST_F(AutoPacketFactoryTest, CurrentPacket) {
AutoCurrentContext()->Initiate();
AutoRequired<AutoPacketFactory> factory;
ASSERT_EQ(nullptr, factory->CurrentPacket()) << "Current packet returned before any packets were issued";
auto packet = factory->NewPacket();
ASSERT_EQ(packet, factory->CurrentPacket()) << "Current packet was not reported correctly as being issued to the known current packet";
packet.reset();
ASSERT_EQ(nullptr, factory->CurrentPacket()) << "A current packet was reported after the current packet has expired";
}
TEST_F(DecoratorTest, ForwardAllTest) {
AutoRequired<AutoPacketFactory> factory;
auto packet1 = factory->NewPacket();
auto packet2 = factory->NewPacket();
packet1->Decorate(Decoration<0>());
packet1->ForwardAll(packet2);
ASSERT_TRUE(packet2->Has<Decoration<0>>()) << "Forwarded packet did not have a decoration present on the original packet as expected";
}
TEST_F(AutoPacketFactoryTest, MultipleInstanceAddition) {
AutoCurrentContext ctxt;
AutoRequired<AutoPacketFactory> factory;
ctxt->Initiate();
bool ary[2] = {};
for (size_t i = 0; i < 2; i++)
*factory += [i, &ary] (int) {
ary[i] = true;
};
auto packet = factory->NewPacket();
packet->Decorate(101);
ASSERT_TRUE(ary[0]) << "First of two identically typed AutoFilter lambdas was not called";
ASSERT_TRUE(ary[1]) << "Second of two identically typed AutoFilter lambdas was not called";
}
TEST_F(AutoPacketFactoryTest, VerifyNoIssueWhileStopped) {
AutoCurrentContext()->SignalShutdown();
AutoRequired<AutoPacketFactory> factory;
ASSERT_THROW(factory->NewPacket(), autowiring_error) << "Issuing a packet in a context that has already been stopped should throw an exception";
}
TEST_F(AutoPacketFactoryTest, VerifyNoIssueWhileNotStarted) {
AutoRequired<AutoPacketFactory> factory;
ASSERT_THROW(factory->NewPacket(), autowiring_error) << "Issuing a packet in a context that has not yet been started should throw an exception";
}