if (!`SELECT transactions='YES' FROM INFORMATION_SCHEMA.ENGINES WHERE engine = '$storage_engine'`)
{
  --echo # -- WARNING ----------------------------------------------------------------
  --echo # According to I_S.ENGINES, $storage_engine does not support transactions.
  --echo # If it is true, the test will most likely fail; you can 
  --echo # either create an rdiff file, or add the test to disabled.def.
  --echo # If transactions should be supported, check the data in Information Schema.
  --echo # ---------------------------------------------------------------------------
}