test: Use test_bitcoin setup in bench, Add test utils

src/test/test_bitcoin.cpp

@@ -33,7 +33,7 @@ std::ostream& operator<<(std::ostream& os, const uint256& num)
 }
 
 BasicTestingSetup::BasicTestingSetup(const std::string& chainName)
-    : m_path_root(fs::temp_directory_path() / "test_bitcoin" / strprintf("%lu_%i", (unsigned long)GetTime(), (int)(InsecureRandRange(1 << 30))))
+    : m_path_root(fs::temp_directory_path() / "test_common_" PACKAGE_NAME / strprintf("%lu_%i", (unsigned long)GetTime(), (int)(InsecureRandRange(1 << 30))))
 {
     SHA256AutoDetect();
     ECC_Start();

src/test/util.cpp

@@ -0,0 +1,90 @@
+// Copyright (c) 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 <test/util.h>
+
+#include <chainparams.h>
+#include <consensus/merkle.h>
+#include <consensus/validation.h>
+#include <key_io.h>
+#include <miner.h>
+#include <outputtype.h>
+#include <pow.h>
+#include <scheduler.h>
+#include <script/standard.h>
+#include <txdb.h>
+#include <validation.h>
+#include <validationinterface.h>
+#ifdef ENABLE_WALLET
+#include <wallet/wallet.h>
+#endif
+
+#include <boost/thread.hpp>
+
+#ifdef ENABLE_WALLET
+std::string getnewaddress(CWallet& w)
+{
+    constexpr auto output_type = OutputType::BECH32;
+
+    CPubKey new_key;
+    if (!w.GetKeyFromPool(new_key)) assert(false);
+
+    w.LearnRelatedScripts(new_key, output_type);
+    const auto dest = GetDestinationForKey(new_key, output_type);
+
+    w.SetAddressBook(dest, /* label */ "", "receive");
+
+    return EncodeDestination(dest);
+}
+
+void importaddress(CWallet& wallet, const std::string& address)
+{
+    LOCK(wallet.cs_wallet);
+    const auto dest = DecodeDestination(address);
+    assert(IsValidDestination(dest));
+    const auto script = GetScriptForDestination(dest);
+    wallet.MarkDirty();
+    assert(!wallet.HaveWatchOnly(script));
+    if (!wallet.AddWatchOnly(script, 0 /* nCreateTime */)) assert(false);
+    wallet.SetAddressBook(dest, /* label */ "", "receive");
+}
+#endif // ENABLE_WALLET
+
+CTxIn generatetoaddress(const std::string& address)
+{
+    const auto dest = DecodeDestination(address);
+    assert(IsValidDestination(dest));
+    const auto coinbase_script = GetScriptForDestination(dest);
+
+    return MineBlock(coinbase_script);
+}
+
+CTxIn MineBlock(const CScript& coinbase_scriptPubKey)
+{
+    auto block = PrepareBlock(coinbase_scriptPubKey);
+
+    while (!CheckProofOfWork(block->GetHash(), block->nBits, Params().GetConsensus())) {
+        ++block->nNonce;
+        assert(block->nNonce);
+    }
+
+    bool processed{ProcessNewBlock(Params(), block, true, nullptr)};
+    assert(processed);
+
+    return CTxIn{block->vtx[0]->GetHash(), 0};
+}
+
+
+std::shared_ptr<CBlock> PrepareBlock(const CScript& coinbase_scriptPubKey)
+{
+    auto block = std::make_shared<CBlock>(
+        BlockAssembler{Params()}
+            .CreateNewBlock(coinbase_scriptPubKey)
+            ->block);
+
+    block->nTime = ::chainActive.Tip()->GetMedianTimePast() + 1;
+    block->hashMerkleRoot = BlockMerkleRoot(*block);
+
+    return block;
+}

src/test/util.h

@@ -0,0 +1,34 @@
+// Copyright (c) 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.
+
+#ifndef BITCOIN_TEST_UTIL_H
+#define BITCOIN_TEST_UTIL_H
+
+#include <memory>
+#include <string>
+
+class CBlock;
+class CScript;
+class CTxIn;
+class CWallet;
+
+// Lower-level utils //
+
+/** Returns the generated coin */
+CTxIn MineBlock(const CScript& coinbase_scriptPubKey);
+/** Prepare a block to be mined */
+std::shared_ptr<CBlock> PrepareBlock(const CScript& coinbase_scriptPubKey);
+
+
+// RPC-like //
+
+/** Import the address to the wallet */
+void importaddress(CWallet& wallet, const std::string& address);
+/** Returns a new address from the wallet */
+std::string getnewaddress(CWallet& w);
+/** Returns the generated coin */
+CTxIn generatetoaddress(const std::string& address);
+
+
+#endif // BITCOIN_TEST_UTIL_H