F mixed write transactions

Tests for caosdb-server!35 (merged) and caosdb-cpplib!26 (merged)

test/test_transaction.cpp

@@ -895,7 +895,6 @@ TEST_F(test_transaction, test_multi_write_transactions) {
   insert_transaction->InsertEntity(&entity_a);
   insert_transaction->InsertEntity(&entity_b);
   insert_transaction->ExecuteAsynchronously();
-  EXPECT_EQ("", insert_transaction->ResponseToString());
   insert_transaction->WaitForIt();
   ASSERT_TRUE(insert_transaction->GetStatus().IsTerminated());
   ASSERT_FALSE(insert_transaction->GetStatus().IsError());
@@ -913,7 +912,6 @@ TEST_F(test_transaction, test_multi_write_transactions) {
   reference_c.SetName("RTC");
 
   Entity entity_a_update(retrieve_transaction->GetResultSet().at(0));
-  EXPECT_EQ("", entity_a_update.ToString());
   entity_a_update.RemoveProperty(0);
   entity_a_update.AppendProperty(reference_c);
 
@@ -923,7 +921,6 @@ TEST_F(test_transaction, test_multi_write_transactions) {
   ASSERT_EQ(complex_transaction->UpdateEntity(&entity_a_update),
             StatusCode::GO_ON);
   complex_transaction->ExecuteAsynchronously();
-  EXPECT_EQ("", complex_transaction->ResponseToString());
   complex_transaction->WaitForIt();
 
   EXPECT_TRUE(complex_transaction->GetStatus().IsTerminated());
@@ -934,9 +931,10 @@ TEST_F(test_transaction, test_multi_write_transactions) {
   ASSERT_EQ(retrieve_transaction->RetrieveById(entity_a_update.GetId()),
             StatusCode::GO_ON);
   retrieve_transaction->ExecuteAsynchronously();
-  EXPECT_EQ("", retrieve_transaction->ResponseToString());
   retrieve_transaction->WaitForIt();
-  EXPECT_EQ("", retrieve_transaction->GetResultSet().at(0).ToString());
+
+  const auto &final_entity = retrieve_transaction->GetResultSet().at(0);
+  EXPECT_EQ("RTC", final_entity.GetProperties().at(0).GetName());
 }
 
 /*