TST: Add Tests for insert and delete

Integration tests for https://gitlab.indiscale.com/caosdb/customers/lfpb/management/-/issues/394 and caosdb-cpplib!4 (merged).

test/test_transaction.cpp

@@ -33,6 +33,7 @@
 namespace caosdb::transaction {
 using caosdb::entity::Entity;
 using caosdb::entity::MessageCode;
+using caosdb::entity::Parent;
 
 class test_transaction : public ::testing::Test {
 protected:
@@ -163,7 +164,7 @@ TEST(test_transaction, insert_delete_with_parent) {
     dynamic_cast<const UniqueResult &>(insert_transaction->GetResultSet());
 
   const auto &inserted_rt = insert_result_set.GetEntity();
-    
+
   Entity rec;
   rec.SetRole("Record");
   rec.SetName("TestRec");
@@ -210,7 +211,6 @@ TEST(test_transaction, insert_delete_with_parent) {
 
   ASSERT_TRUE(rt_delete_status.IsTerminated());
   ASSERT_FALSE(rt_delete_status.IsError());
-
 }
 
 // TODO(fspreck) Insert a Record with a parent and a Property. Check