["$2"!="$3"]&&echo"FATAL with '$1': result '$3' do not match with '$2'"||echo"OK for '$1' with '$2'"
local result="`$3"$4""$5"`"
["$2"!="$result"]&&echo"FATAL with '$1': result '$result' do not match with '$2' (command $3\"$4\"\"$5\")"||echo"OK for '$1' with '$2' for '$3\"$4\"\"$5\"'"