Add unit test for chain genesis block initialization

Author: apoelstra

src/Makefile.test.include

@@ -38,6 +38,7 @@ BITCOIN_TESTS =\
   test/compress_tests.cpp \
   test/crypto_tests.cpp \
   test/DoS_tests.cpp \
+  test/genesis_tests.cpp \
   test/getarg_tests.cpp \
   test/hash_tests.cpp \
   test/key_tests.cpp \

src/test/genesis_tests.cpp

@@ -0,0 +1,49 @@
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "chainparams.h"
+#include "uint256.h"
+#include "utilstrencodings.h"
+
+#include <boost/test/unit_test.hpp>
+
+BOOST_AUTO_TEST_SUITE(genesis_tests)
+
+// Goal: check that the standard mainnet genesis block is computed correctly
+BOOST_AUTO_TEST_CASE(genesis_mainnet)
+{
+    SelectParams(CBaseChainParams::MAIN);
+    const CChainParams *params = &Params();
+    BOOST_CHECK_EQUAL(params->HashGenesisBlock().GetHex(),
+                      "b811a5eeaf27432278c032a0b520f829be2b92fafff9789efe2755fff8ef547b");
+    // Check that unittest genesis hash is same as the mainnet one
+    const CChainParams *params2 = &Params();
+    BOOST_CHECK_EQUAL(params2->HashGenesisBlock().GetHex(),
+                      "b811a5eeaf27432278c032a0b520f829be2b92fafff9789efe2755fff8ef547b");
+}
+
+// Goal: check that the standard testnet genesis block is computed correctly
+BOOST_AUTO_TEST_CASE(genesis_testnet)
+{
+    SelectParams(CBaseChainParams::TESTNET);
+    const CChainParams *params = &Params();
+    BOOST_CHECK_EQUAL(params->HashGenesisBlock().GetHex(),
+                      "f7f0ca371b1003dc7346bab766b4a131f9e3a5d68820a364d70921cb15b95eaa");
+    // Return params to base case for other tests
+    SelectParams(CBaseChainParams::UNITTEST);
+}
+
+// Goal: check that the default regtest genesis block is computed correctly
+BOOST_AUTO_TEST_CASE(genesis_regtest)
+{
+    SelectParams(CBaseChainParams::REGTEST);
+    const CChainParams *params1 = &Params();
+    BOOST_CHECK_EQUAL(params1->HashGenesisBlock().GetHex(),
+                      "b41d03dc310957765223df2bf2f4b3609c79b8b6ac0a0764b20754f972d48b6c");
+    // Return params to base case for other tests
+    SelectParams(CBaseChainParams::UNITTEST);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+