The 23-year-old wicketkeeper-batsman, who joined Lancashire from Somerset at the start of this season, played one of the greatest limited overs innings ever by an England batsman, albeit in a losing cause, against Sri Lanka at Lord's on Saturday.
Coming in with England in dire straits at 111 for five in pursuit of a target of 301, Buttler made 121 with his hundred coming off just 61 balls -- the quickest by an England player at ODI level and the fastest by any batsman in England.
England are due to name their squad for this month's first Test against Sri Lanka on Thursday, with their apparent plan to recall Matt Prior after he was dropped during the 5-0 Ashes thrashing in Australia set to be scuppered by the Sussex stumper's Achilles injury.
While Buttler certainly hasn't done his chances of making a Test debut any harm, doubts remain over the quality of his glovework and there have even been suggestions England could recall Essex's James Foster, reckoned to be the best keeper on the county circuit, 12 years after the Essex stalwart played his last Test.
"I haven't discussed it with the management or Alastair," Buttler said. "(But) I am not ready for Test match cricket.
"It is a pretty easy assumption to make, looking at my game and where I am as a player.