Add more query tests

tests/Query.cpp

@@ -16,5 +16,27 @@ int main() {
         assert(uWS::getDecodedQueryValue("test2", (char *) buf.data()) == "someValue");
     }
 
+    {
+        std::string buf = "?Kest1=&test2=someValue";
+        assert(uWS::getDecodedQueryValue("test2", (char *) buf.data()) == "someValue");
+    }
+
+    {
+        std::string buf = "?Test1=&Kest2=some";
+        assert(uWS::getDecodedQueryValue("Test1", (char *) buf.data()) == "");
+        assert(uWS::getDecodedQueryValue("Kest2", (char *) buf.data()) == "some");
+    }
+
+    {
+        std::string buf = "?Test1=&Kest2=some";
+        assert(uWS::getDecodedQueryValue("Test1", (char *) buf.data()).data() != nullptr);
+        assert(uWS::getDecodedQueryValue("sdfsdf", (char *) buf.data()).data() == nullptr);
+    }
+
+    {
+        std::string buf = "?Kest1=&test2=some%20Value";
+        assert(uWS::getDecodedQueryValue("test2", (char *) buf.data()) == "some Value");
+    }
+
     return 0;
 }