Merge bitcoin#23736: test: call VerifyLoadedChainstate during ChainTestingSetup

826e12b test: call VerifyLoadedChainstate during ChainTestingSetup (James O'Beirne)

Pull request description:

  for additional coverage and similarity to actual init process.

  Followup to bitcoin#23280.

ACKs for top commit:
  dongcarl:
    Code Review ACK 826e12b
  ryanofsky:
    Code review ACK 826e12b

Tree-SHA512: a4e7fd25e5d7a08b1e154ae6daf67c3048260a2684b0e569b544dd826693b7b969db9923b191e499cb8d8d0a2a73eb9330ff45909313145a9abb6052eb8c3ad9

Author: fanquake

src/test/util/setup_common.cpp

@@ -195,6 +195,16 @@ TestingSetup::TestingSetup(const std::string& chainName, const std::vector<const
                              true);
     assert(!rv.has_value());
 
+    auto maybe_verify_failure = VerifyLoadedChainstate(
+        *Assert(m_node.chainman),
+        fReindex.load(),
+        m_args.GetBoolArg("-reindex-chainstate", false),
+        chainparams.GetConsensus(),
+        m_args.GetIntArg("-checkblocks", DEFAULT_CHECKBLOCKS),
+        m_args.GetIntArg("-checklevel", DEFAULT_CHECKLEVEL),
+        static_cast<int64_t(*)()>(GetTime));
+    assert(!maybe_verify_failure.has_value());
+
     BlockValidationState state;
     if (!m_node.chainman->ActiveChainstate().ActivateBestChain(state)) {
         throw std::runtime_error(strprintf("ActivateBestChain failed. (%s)", state.ToString()));