wallet: do not store signatures in the wallet cache

Saves some substantial space.
Also avoid calculating tx hashes we don't need.

2 files changed, 6 insertions, 1 deletions

diff --git a/tests/functional_tests/transactions_flow_test.cpp b/tests/functional_tests/transactions_flow_test.cpp
index 6bf910101..585328348 100644
--- a/tests/functional_tests/transactions_flow_test.cpp
+++ b/tests/functional_tests/transactions_flow_test.cpp
@@ -281,7 +281,7 @@ bool transactions_flow_test(std::string& working_folder,
     w2.get_transfers(tc);
     BOOST_FOREACH(tools::wallet2::transfer_details& td, tc)
     {
-      auto it = txs.find(get_transaction_hash(td.m_tx));
+      auto it = txs.find(td.m_txid);
       CHECK_AND_ASSERT_MES(it != txs.end(), false, "transaction not found in local cache");
       it->second.m_received_count += 1;
     }
diff --git a/tests/unit_tests/output_selection.cpp b/tests/unit_tests/output_selection.cpp
index a3164fa4e..4344d1ffc 100644
--- a/tests/unit_tests/output_selection.cpp
+++ b/tests/unit_tests/output_selection.cpp
@@ -42,6 +42,11 @@ static tools::wallet2::transfer_container make_transfers_container(size_t N)
     tools::wallet2::transfer_details &td = transfers.back();
     td.m_block_height = 1000;
     td.m_spent = false;
+    td.m_txid = cryptonote::null_hash;
+    td.m_txid.data[0] = n & 0xff;
+    td.m_txid.data[1] = (n >> 8) & 0xff;
+    td.m_txid.data[2] = (n >> 16) & 0xff;
+    td.m_txid.data[3] = (n >> 24) & 0xff;
   }
   return transfers;
 }