Merge #15504: fuzz: Link BasicTestingSetup (shared with unit tests)

faa9b88199 fuzz: Link BasicTestingSetup (shared with unit tests) (MarcoFalke)
fa85468cd2 test: Move main_tests to validation_tests (MarcoFalke)
fa02b22245 test: Remove useless test_bitcoin_main.cpp (MarcoFalke)
fab2daa026 test: Add missing LIBBITCOIN_ZMQ to test_test_bitcoin_LDADD (MarcoFalke)

Pull request description:

  Link against BasicTestingSetup in the fuzz tests, so we can fuzz against validation.

  Also include a commit to remove test_bitcoin_main.cpp. That file may or may not overwrite globals in the link stage depending on the link order. This is confusing and useless anyway: The unit tests should never `std::exit` in the middle of the run (especially with success as exit code), since it will skip all test modules afterward.

  Also include a commit to remove some unused forward declarations and move the main_tests to validation_tests, since main was long ago split into net_processing and validation.

Tree-SHA512: bdd34c87505450ec106d632f6664aadcbdac7c198172a77da55fab75b274f869ae1a8d06573ba2aff4cb186be9c7a34b7697894ab6f9c82b392f769c9135f36c

src/test/fuzz/fuzz.h

@@ -10,8 +10,6 @@
 #include <vector>
 
 
-const std::function<std::string(const char*)> G_TRANSLATION_FUN = nullptr;
-
 void test_one_input(std::vector<uint8_t> buffer);
 
 #endif // BITCOIN_TEST_FUZZ_FUZZ_H

src/test/main.cpp

@@ -0,0 +1,7 @@
+// Copyright (c) 2011-2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#define BOOST_TEST_MODULE Bitcoin Core Test Suite
+
+#include <boost/test/unit_test.hpp>

src/test/test_bitcoin.cpp

@@ -66,36 +66,36 @@ TestingSetup::TestingSetup(const std::string& chainName) : BasicTestingSetup(cha
 {
     SetDataDir("tempdir");
     const CChainParams& chainparams = Params();
-        // Ideally we'd move all the RPC tests to the functional testing framework
-        // instead of unit tests, but for now we need these here.
+    // Ideally we'd move all the RPC tests to the functional testing framework
+    // instead of unit tests, but for now we need these here.
 
-        RegisterAllCoreRPCCommands(tableRPC);
-        ClearDatadirCache();
+    RegisterAllCoreRPCCommands(tableRPC);
+    ClearDatadirCache();
 
-        // We have to run a scheduler thread to prevent ActivateBestChain
-        // from blocking due to queue overrun.
-        threadGroup.create_thread(std::bind(&CScheduler::serviceQueue, &scheduler));
-        GetMainSignals().RegisterBackgroundSignalScheduler(scheduler);
+    // We have to run a scheduler thread to prevent ActivateBestChain
+    // from blocking due to queue overrun.
+    threadGroup.create_thread(std::bind(&CScheduler::serviceQueue, &scheduler));
+    GetMainSignals().RegisterBackgroundSignalScheduler(scheduler);
 
-        mempool.setSanityCheck(1.0);
-        pblocktree.reset(new CBlockTreeDB(1 << 20, true));
-        pcoinsdbview.reset(new CCoinsViewDB(1 << 23, true));
-        pcoinsTip.reset(new CCoinsViewCache(pcoinsdbview.get()));
-        if (!LoadGenesisBlock(chainparams)) {
-            throw std::runtime_error("LoadGenesisBlock failed.");
-        }
-        {
-            CValidationState state;
-            if (!ActivateBestChain(state, chainparams)) {
-                throw std::runtime_error(strprintf("ActivateBestChain failed. (%s)", FormatStateMessage(state)));
-            }
-        }
-        nScriptCheckThreads = 3;
-        for (int i=0; i < nScriptCheckThreads-1; i++)
-            threadGroup.create_thread(&ThreadScriptCheck);
+    mempool.setSanityCheck(1.0);
+    pblocktree.reset(new CBlockTreeDB(1 << 20, true));
+    pcoinsdbview.reset(new CCoinsViewDB(1 << 23, true));
+    pcoinsTip.reset(new CCoinsViewCache(pcoinsdbview.get()));
+    if (!LoadGenesisBlock(chainparams)) {
+        throw std::runtime_error("LoadGenesisBlock failed.");
+    }
 
-        g_banman = MakeUnique<BanMan>(GetDataDir() / "banlist.dat", nullptr, DEFAULT_MISBEHAVING_BANTIME);
-        g_connman = MakeUnique<CConnman>(0x1337, 0x1337); // Deterministic randomness for tests.
+    CValidationState state;
+    if (!ActivateBestChain(state, chainparams)) {
+        throw std::runtime_error(strprintf("ActivateBestChain failed. (%s)", FormatStateMessage(state)));
+    }
+
+    nScriptCheckThreads = 3;
+    for (int i = 0; i < nScriptCheckThreads - 1; i++)
+        threadGroup.create_thread(&ThreadScriptCheck);
+
+    g_banman = MakeUnique<BanMan>(GetDataDir() / "banlist.dat", nullptr, DEFAULT_MISBEHAVING_BANTIME);
+    g_connman = MakeUnique<CConnman>(0x1337, 0x1337); // Deterministic randomness for tests.
 }
 
 TestingSetup::~TestingSetup()

src/test/test_bitcoin.h

@@ -71,10 +71,6 @@ private:
 /** Testing setup that configures a complete environment.
  * Included are data directory, coins database, script check threads setup.
  */
-class CConnman;
-class CNode;
-
-class PeerLogicValidation;
 struct TestingSetup : public BasicTestingSetup {
     boost::thread_group threadGroup;
     CScheduler scheduler;

src/test/test_bitcoin_main.cpp

@@ -1,30 +0,0 @@
-// Copyright (c) 2011-2018 The Bitcoin Core developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#define BOOST_TEST_MODULE Bitcoin Test Suite
-
-#include <banman.h>
-#include <net.h>
-
-#include <memory>
-
-#include <boost/test/unit_test.hpp>
-
-std::unique_ptr<CConnman> g_connman;
-std::unique_ptr<BanMan> g_banman;
-
-[[noreturn]] void Shutdown(void* parg)
-{
-  std::exit(EXIT_SUCCESS);
-}
-
-[[noreturn]] void StartShutdown()
-{
-  std::exit(EXIT_SUCCESS);
-}
-
-bool ShutdownRequested()
-{
-  return false;
-}

src/test/validation_tests.cpp

@@ -1,17 +1,17 @@
-// Copyright (c) 2014-2018 The Bitcoin Core developers
+// Copyright (c) 2014-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <chainparams.h>
-#include <validation.h>
 #include <net.h>
+#include <validation.h>
 
 #include <test/test_bitcoin.h>
 
 #include <boost/signals2/signal.hpp>
 #include <boost/test/unit_test.hpp>
 
-BOOST_FIXTURE_TEST_SUITE(main_tests, TestingSetup)
+BOOST_FIXTURE_TEST_SUITE(validation_tests, TestingSetup)
 
 static void TestBlockSubsidyHalvings(const Consensus::Params& consensusParams)
 {