public function testGetGravatarUrl($input, $expectedHttp, $expectedHttps)
{
$_SERVER['HTTPS'] = 'off';
isSame($expectedHttp, Email::getGravatarUrl($input[0], $input[1], $input[2]));
$_SERVER['HTTPS'] = 'on';
isSame($expectedHttps, Email::getGravatarUrl($input[0], $input[1], $input[2]));
}