diff --git a/server/core/test/test_dcb.cc b/server/core/test/test_dcb.cc
index b93ed017b..cf30d4f82 100644
--- a/server/core/test/test_dcb.cc
+++ b/server/core/test/test_dcb.cc
@@ -50,7 +50,10 @@ static int test1()
     DCB* dcb;
     /* Single buffer tests */
     fprintf(stderr, "testdcb : creating buffer with type DCB_ROLE_INTERNAL");
-    dcb = dcb_alloc(DCB_ROLE_INTERNAL, nullptr);
+    auto service = service_alloc("service", "readconnroute", nullptr);
+    auto listener = Listener::create(service, "listener", "mariadbclient", "0.0.0.0", 3306, "", "", nullptr);
+    auto session = new mxs::Session(listener);
+    dcb = dcb_alloc(DCB_ROLE_INTERNAL, session);
     printDCB(dcb);
     fprintf(stderr, "\t..done\nAllocated dcb.");
     // TODO: Without running workers, the following will hang. As it does not
diff --git a/server/core/test/test_poll.cc b/server/core/test/test_poll.cc
index dfa1af2f3..085b811e5 100644
--- a/server/core/test/test_poll.cc
+++ b/server/core/test/test_poll.cc
@@ -38,6 +38,8 @@
 #include <maxscale/service.hh>
 
 #include "test_utils.h"
+#include "../internal/service.hh"
+#include "../internal/session.hh"
 
 /**
  * test1    Allocate a service and do lots of other things
@@ -54,7 +56,11 @@ static int test1()
             "testpoll : Initialise the polling system.");
     init_test_env(NULL);
     fprintf(stderr, "\t..done\nAdd a DCB");
-    dcb = dcb_alloc(DCB_ROLE_CLIENT_HANDLER, nullptr);
+
+    auto service = service_alloc("service", "readconnroute", nullptr);
+    auto listener = Listener::create(service, "listener", "mariadbclient", "0.0.0.0", 3306, "", "", nullptr);
+    auto session = new mxs::Session(listener);
+    dcb = dcb_alloc(DCB_ROLE_CLIENT_HANDLER, session);
 
     if (dcb == NULL)
     {
diff --git a/server/core/test/test_utils.h b/server/core/test/test_utils.h
index f4390b3c3..b1c8691fe 100644
--- a/server/core/test/test_utils.h
+++ b/server/core/test/test_utils.h
@@ -29,7 +29,7 @@
 #include <sys/stat.h>
 
 #include "../internal/poll.hh"
-
+#include "../internal/modules.hh"
 
 void init_test_env(char* path)
 {
@@ -48,6 +48,14 @@ void init_test_env(char* path)
     maxbase::init();
     maxscale::RoutingWorker::init();
     hkinit();
+    set_libdir(MXS_STRDUP(TEST_DIR "/server/modules/protocol/MySQL/mariadbclient/"));
+    load_module("mariadbclient", MODULE_PROTOCOL);
+    set_libdir(MXS_STRDUP(TEST_DIR "/server/modules/routing/readconnroute/"));
+    load_module("readconnroute", MODULE_ROUTER);
+    set_libdir(MXS_STRDUP(TEST_DIR "/server/modules/routing/readwritesplit/"));
+    load_module("readwritesplit", MODULE_ROUTER);
+    set_libdir(MXS_STRDUP(TEST_DIR "/server/modules/authenticator/MySQLAuth/"));
+    load_module("mysqlauth", MODULE_AUTHENTICATOR);
 }
 
 #endif