public static function assertNotInternalType($expected, $actual, $message = '')
{
if (!is_string($expected)) {
throw PHPUnit_Util_InvalidArgumentHelper::factory(1, 'string');
}
$constraint = new PHPUnit_Framework_Constraint_Not(new PHPUnit_Framework_Constraint_IsType($expected));
static::assertThat($actual, $constraint, $message);
}