Fix test linker errors: add missing global stubs, update orphan tx API

- test_triangles.cpp: add globals excluded with init.o (fEnforceCanonical,
  nNodeLifespan, fConfChange, CheckpointsMode, nDerivationMethodIndex,
  fUseFastIndex)
- DoS_tests.cpp: update AddOrphanTx and mapOrphanTransactions to match
  current CTransaction-based API (was old CDataStream-based)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/test/DoS_tests.cpp

@@ -14,10 +14,10 @@
 #include <stdint.h>
 
 // Tests this internal-to-main.cpp method:
-extern bool AddOrphanTx(const CDataStream& vMsg);
+extern bool AddOrphanTx(const CTransaction& tx);
 extern unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans);
-extern std::map<uint256, CDataStream*> mapOrphanTransactions;
-extern std::map<uint256, std::map<uint256, CDataStream*> > mapOrphanTransactionsByPrev;
+extern std::map<uint256, CTransaction> mapOrphanTransactions;
+extern std::map<uint256, std::set<uint256> > mapOrphanTransactionsByPrev;
 
 CService ip(uint32_t i)
 {
@@ -131,14 +131,11 @@ BOOST_AUTO_TEST_CASE(DoS_checknbits)
 
 CTransaction RandomOrphan()
 {
-    std::map<uint256, CDataStream*>::iterator it;
+    std::map<uint256, CTransaction>::iterator it;
     it = mapOrphanTransactions.lower_bound(GetRandHash());
     if (it == mapOrphanTransactions.end())
         it = mapOrphanTransactions.begin();
-    const CDataStream* pvMsg = it->second;
-    CTransaction tx;
-    CDataStream(*pvMsg) >> tx;
-    return tx;
+    return it->second;
 }
 
 BOOST_AUTO_TEST_CASE(DoS_mapOrphans)
@@ -160,9 +157,7 @@ BOOST_AUTO_TEST_CASE(DoS_mapOrphans)
         tx.vout[0].nValue = 1*CENT;
         tx.vout[0].scriptPubKey.SetDestination(key.GetPubKey().GetID());
 
-        CDataStream ds(SER_DISK, CLIENT_VERSION);
-        ds << tx;
-        AddOrphanTx(ds);
+        AddOrphanTx(tx);
     }
 
     // ... and 50 that depend on other orphans:
@@ -179,9 +174,7 @@ BOOST_AUTO_TEST_CASE(DoS_mapOrphans)
         tx.vout[0].scriptPubKey.SetDestination(key.GetPubKey().GetID());
         SignSignature(keystore, txPrev, tx, 0);
 
-        CDataStream ds(SER_DISK, CLIENT_VERSION);
-        ds << tx;
-        AddOrphanTx(ds);
+        AddOrphanTx(tx);
     }
 
     // This really-big orphan should be ignored:
@@ -205,9 +198,7 @@ BOOST_AUTO_TEST_CASE(DoS_mapOrphans)
         for (unsigned int j = 1; j < tx.vin.size(); j++)
             tx.vin[j].scriptSig = tx.vin[0].scriptSig;
 
-        CDataStream ds(SER_DISK, CLIENT_VERSION);
-        ds << tx;
-        BOOST_CHECK(!AddOrphanTx(ds));
+        BOOST_CHECK(!AddOrphanTx(tx));
     }
 
     // Test LimitOrphanTxSize() function:
@@ -243,9 +234,7 @@ BOOST_AUTO_TEST_CASE(DoS_checkSig)
         tx.vout[0].nValue = 1*CENT;
         tx.vout[0].scriptPubKey.SetDestination(key.GetPubKey().GetID());
 
-        CDataStream ds(SER_DISK, CLIENT_VERSION);
-        ds << tx;
-        AddOrphanTx(ds);
+        AddOrphanTx(tx);
     }
 
     // Create a transaction that depends on orphans:

src/test/test_triangles.cpp

@@ -4,10 +4,19 @@
 #include "db.h"
 #include "main.h"
 #include "wallet.h"
+#include "checkpoints.h"
 
 CWallet* pwalletMain;
 CClientUIInterface uiInterface;
 
+// Globals normally defined in init.cpp (excluded from test build)
+bool fConfChange;
+bool fEnforceCanonical;
+unsigned int nNodeLifespan;
+unsigned int nDerivationMethodIndex;
+bool fUseFastIndex;
+enum Checkpoints::CPMode CheckpointsMode;
+
 extern bool fPrintToConsole;
 extern void noui_connect();