message: test: Use mocktime to avoid intermittent failure
diff: @@ -279,7 +279,11 @@ BOOST_AUTO_TEST_CASE(rpc_ban)
  BOOST_CHECK_NO_THROW(CallRPC(std::string("clearbanned")));
  + auto now = 10'000s;
  + SetMockTime(now);
  BOOST_CHECK_NO_THROW(r = CallRPC(std::string("setban 127.0.0.0/24 add 200")));
  + SetMockTime(now += 2s);
  + const int64_t time_remaining_expected{198};
  BOOST_CHECK_NO_THROW(r = CallRPC(std::string("listbanned")));
  ar = r.get_array();
  o1 = ar[0].get_obj();
  @@ -288,12 +292,10 @@ BOOST_AUTO_TEST_CASE(rpc_ban)
  const int64_t ban_created{find_value(o1, "ban_created").get_int64()};
  const int64_t ban_duration{find_value(o1, "ban_duration").get_int64()};
  const int64_t time_remaining{find_value(o1, "time_remaining").get_int64()};
  - const int64_t now{GetTime()};
  BOOST_CHECK_EQUAL(adr.get_str(), "127.0.0.0/24");
  - BOOST_CHECK(banned_until > now);
  - BOOST_CHECK(banned_until - now <= 200);
  + BOOST_CHECK_EQUAL(banned_until, time_remaining_expected + now.count());
  BOOST_CHECK_EQUAL(ban_duration, banned_until - ban_created);
  - BOOST_CHECK_EQUAL(time_remaining, banned_until - now);
  + BOOST_CHECK_EQUAL(time_remaining, time_remaining_expected);
  // must throw an exception because 127.0.0.1 is in already banned subnet range
  BOOST_CHECK_THROW(r = CallRPC(std::string("setban 127.0.0.1 add")), std::runtime_error);
  @@ -337,6 +339,7 @@ BOOST_AUTO_TEST_CASE(rpc_ban)
  o1 = ar[0].get_obj();
  adr = find_value(o1, "address");
  BOOST_CHECK_EQUAL(adr.get_str(), "2001:4d48:ac57:400:cacf:e9ff:fe1d:9c63/128");
  + SetMockTime(0s);
  }
  BOOST_AUTO_TEST_CASE(rpc_convert_values_generatetoaddress)
  