Merge bitcoin/bitcoin#23288: tests: remove usage of LegacyScriptPubKeyMan from some wallet tests

2d2edc1248a2e49636409b07448676e5bfe44956 tests: Use Descriptor wallets for generic wallet tests (Andrew Chow)
99516285b7cf2664563712d95d95f54e1985c0c2 tests: Use legacy change type in subtract fee from outputs test (Andrew Chow)
dcd6eeb64adb2b532f5003cbb86ba65b3c08a87b tests: Use descriptors in psbt_wallet_tests (Andrew Chow)
4b1588c6bd96743b333cc291e19a9fc76dc8cdf1 tests: Use DescriptorScriptPubKeyMan in coinselector_tests (Andrew Chow)
811319fea4295bfff05c23c0dcab1e24c85e8544 tests, gui: Use DescriptorScriptPubKeyMan in GUI tests (Andrew Chow)
9bf02438727e1052c69d906252fc2a451c923409 bench: Use DescriptorScriptPubKeyMan for wallet things (Andrew Chow)
5e54aa9b90c5d4d472be47a7fca969c5e7b92e88 bench: remove global testWallet from CoinSelection benchmark (Andrew Chow)
a5595b1320d0ebd2c60833286799ee42108a7c01 tests: Remove global vCoins and testWallet from coinselector_tests (Andrew Chow)

Pull request description:

  Currently, various tests use `LegacyScriptPubKeyMan` because it was convenient for the refactor that introduced the `ScriptPubKeyMan` interface. However, with the legacy wallet slated to be removed, these tests should not continue to use `LegacyScriptPubKeyMan` as they are not testing any specific legacy wallet behavior. These tests are changed to use `DescriptorScriptPubKeyMan`s.

  Some of the coin selection tests and benchmarks had a global `testWallet`, but this seemed to cause some issues with ensuring that descriptors were set up in that wallet for each test. Those have been restructured to not have any global variables that may be modified between tests.

  The tests which test specific legacy wallet behavior remain unchanged.

ACKs for top commit:
  laanwj:
    Code review ACK 2d2edc1248a2e49636409b07448676e5bfe44956
  brunoerg:
    tACK 2d2edc1248a2e49636409b07448676e5bfe44956

Tree-SHA512: 6d60e5978e822d48e46cfc0dae4635fcb1939f21ea9d84eb72e36112e925554b7ee8f932c7ed0c4881b6566c6c19260bec346abdff1956ca9f300b30fb4e2dd1

2 files changed, 18 insertions, 5 deletions

diff --git a/src/qt/test/addressbooktests.cpp b/src/qt/test/addressbooktests.cpp
index 0de781661a..729957699a 100644
--- a/src/qt/test/addressbooktests.cpp
+++ b/src/qt/test/addressbooktests.cpp
@@ -64,8 +64,12 @@ void TestAddAddressesToSendBook(interfaces::Node& node)
     test.m_node.wallet_client = wallet_client.get();
     node.setContext(&test.m_node);
     std::shared_ptr<CWallet> wallet = std::make_shared<CWallet>(node.context()->chain.get(), "", CreateMockWalletDatabase());
-    wallet->SetupLegacyScriptPubKeyMan();
     wallet->LoadWallet();
+    wallet->SetWalletFlag(WALLET_FLAG_DESCRIPTORS);
+    {
+        LOCK(wallet->cs_wallet);
+        wallet->SetupDescriptorScriptPubKeyMans();
+    }
 
     auto build_address = [&wallet]() {
         CKey key;
diff --git a/src/qt/test/wallettests.cpp b/src/qt/test/wallettests.cpp
index 62b135d3f1..c74c8f25b3 100644
--- a/src/qt/test/wallettests.cpp
+++ b/src/qt/test/wallettests.cpp
@@ -143,11 +143,20 @@ void TestGUI(interfaces::Node& node)
     node.setContext(&test.m_node);
     std::shared_ptr<CWallet> wallet = std::make_shared<CWallet>(node.context()->chain.get(), "", CreateMockWalletDatabase());
     wallet->LoadWallet();
+    wallet->SetWalletFlag(WALLET_FLAG_DESCRIPTORS);
     {
-        auto spk_man = wallet->GetOrCreateLegacyScriptPubKeyMan();
-        LOCK2(wallet->cs_wallet, spk_man->cs_KeyStore);
-        wallet->SetAddressBook(GetDestinationForKey(test.coinbaseKey.GetPubKey(), wallet->m_default_address_type), "", "receive");
-        spk_man->AddKeyPubKey(test.coinbaseKey, test.coinbaseKey.GetPubKey());
+        LOCK(wallet->cs_wallet);
+        wallet->SetupDescriptorScriptPubKeyMans();
+
+        // Add the coinbase key
+        FlatSigningProvider provider;
+        std::string error;
+        std::unique_ptr<Descriptor> desc = Parse("combo(" + EncodeSecret(test.coinbaseKey) + ")", provider, error, /* require_checksum=*/ false);
+        assert(desc);
+        WalletDescriptor w_desc(std::move(desc), 0, 0, 1, 1);
+        if (!wallet->AddWalletDescriptor(w_desc, provider, "", false)) assert(false);
+        CTxDestination dest = GetDestinationForKey(test.coinbaseKey.GetPubKey(), wallet->m_default_address_type);
+        wallet->SetAddressBook(dest, "", "receive");
         wallet->SetLastBlockProcessed(105, node.context()->chainman->ActiveChain().Tip()->GetBlockHash());
     }
     {