Add working TopicTree unit test

tests/TopicTree.cpp

@@ -7,14 +7,16 @@ void testUnsubscribeInside() {
     std::cout << "TestUnsubscribeInside" << std::endl;
 
     uWS::TopicTree *topicTree;
-    std::map<void *, std::string> expectedResult;
+    std::map<void *, std::pair<std::string, std::string>> expectedResult;
+
+    topicTree = new uWS::TopicTree([&topicTree, &expectedResult](uWS::Subscriber *s, std::pair<std::string_view, std::string_view> dataChannels) {
+        std::string_view data = dataChannels.second;
 
-    topicTree = new uWS::TopicTree([&topicTree, &expectedResult](uWS::Subscriber *s, std::string_view data) {
         /* Check for unexpected subscribers */
         assert(expectedResult.find(s) != expectedResult.end());
 
         /* Check for unexpected data */
-        assert(expectedResult[s] == data);
+        assert(expectedResult[s].first == dataChannels.first && expectedResult[s].second == dataChannels.second);
 
         /* This one causes mess-up */
         topicTree->unsubscribeAll(s);
@@ -28,8 +30,8 @@ void testUnsubscribeInside() {
 
     /* Fill out expectedResult */
     expectedResult = {
-        {s1, "Ett!"},
-        {s2, "Två!"}
+        {s1, {"Ett!", "Ett!"}},
+        {s2, {"Två!", "Två!"}}
     };
 
     /* Make sure s1 < s2 */
@@ -44,8 +46,62 @@ void testUnsubscribeInside() {
     topicTree->subscribe("1", s1);
 
     /* This order matters, as it fills triggeredTopics array in order */
-    topicTree->publish("1", "Ett!");
-    topicTree->publish("2", "Två!");
+    topicTree->publish("1", {std::string_view("Ett!"), std::string_view("Ett!")});
+    topicTree->publish("2", {std::string_view("Två!"), std::string_view("Ett!")});
+
+    topicTree->drain();
+
+    /* Release resources */
+    topicTree->unsubscribeAll(s1);
+    topicTree->unsubscribeAll(s2);
+
+    delete s1;
+    delete s2;
+
+    delete topicTree;
+}
+
+void testPublisherHoles() {
+    std::cout << "TestPublisherHoles" << std::endl;
+
+    uWS::TopicTree *topicTree;
+    std::map<void *, std::pair<std::string, std::string>> expectedResult;
+
+    topicTree = new uWS::TopicTree([&topicTree, &expectedResult](uWS::Subscriber *s, std::pair<std::string_view, std::string_view> dataChannels) {
+
+        /* Check for unexpected subscribers */
+        assert(expectedResult.find(s) != expectedResult.end());
+
+        /* Check for unexpected data */
+        assert(expectedResult[s].first == dataChannels.first && expectedResult[s].second == dataChannels.second);
+
+        /* We actually don't use this one */
+        return 0;
+    });
+
+    uWS::Subscriber *s1 = new uWS::Subscriber(nullptr);
+    uWS::Subscriber *s2 = new uWS::Subscriber(nullptr);
+
+    /* Fill out expectedResult */
+    expectedResult = {
+        {s1, {"Två!", "Två!"}}, // todo: this one should not receive what he sent himself
+        {s2, {"Två!", "Två!"}}
+    };
+
+    /* Make sure s1 < s2 */
+    if (s2 < s1) {
+        uWS::Subscriber *tmp = s1;
+        s1 = s2;
+        s2 = tmp;
+    }
+
+    /* This order does not matter as it fills a tree */
+    topicTree->subscribe("1", s2);
+    topicTree->subscribe("1", s1);
+
+    /* This order matters, as it fills triggeredTopics array in order */
+    //topicTree->publish("1", {std::string_view("Ett!"), std::string_view("Ett!")});
+    topicTree->publish("1", {std::string_view("Två!"), std::string_view("Två!")});
 
     topicTree->drain();
 
@@ -60,5 +116,7 @@ void testUnsubscribeInside() {
 }
 
 int main() {
-    testUnsubscribeInside();
+    //testUnsubscribeInside();
+
+    testPublisherHoles();
 }