The Kiwis' more accomplished spine dominated the contest on Saturday, much to the disappointment of a bumper crowd predominantly there to support Tonga and hope they could repeat their World Cup boilover of 18 months earlier.
Instead, the home side were too clinical, conjuring six tries to three in a disciplined display which featured an attacking ruthlessness their opponents couldn't match.
Johnson was the spearhead, crossing twice with carbon-copy tries in the 10 minutes before halftime to put his team 16-4 ahead, then adding a third soon after the second-half restart.
