public static function validate($structure)
{
if (12 !== strlen($structure)) {
return false;
}
$sequences = substr($structure, 0, 10);
$key = substr($structure, -2);
$control = $sequences % 97;
// final control must be a 2-digits:
$control = 1 < strlen($control) ? $control : sprintf('0%d', $control);
return $key === $control;
} /**
* testInvalidStructuredCommunication
*
* @param mixed $structure
*
* @dataProvider getInvalidStructuredCommunication
*
* @return void
*/
public function testInvalidStructuredCommunication($structure)
{
$this->assertFalse(StructuredCommunication::validate($structure));
}