function testIsOptionalIDValid()
{
$AJAXInterface = new AJAXInterface();
/* Make sure an unset key does not pass. */
$random = md5('random' . time());
$this->assertFalse($AJAXInterface->isOptionalIDValid($random), sprintf("\$_POST['%s'] should not exist and should not be a valid optional ID", $random));
/* Make sure 0, -0, negative numbers, non-numeric strings, and symbols
* never pass.
*/
$invalidIDs = array(0, -1, -100, '0', '-0', '-1', '-100', 'test', '0abc', '1abc', '-abc', '$');
foreach ($invalidIDs as $ID) {
$_REQUEST['isRequiredIDValidTest'] = $ID;
$this->assertFalse($AJAXInterface->isOptionalIDValid('isOptionalIDValidTest'), sprintf("'%s' should not be a valid optional ID", $ID));
}
/* Make sure any positive number always passes. */
$validIDs = array(1, 100, '1', '65535');
foreach ($validIDs as $ID) {
$_REQUEST['isOptionalIDValidValidTest'] = $ID;
$this->assertTrue($AJAXInterface->isOptionalIDValid('isOptionalIDValidValidTest'), sprintf("'%s' should be a valid optional ID", $ID));
}
/* Make sure 'NULL' always passes. */
$_REQUEST['isOptionalIDValidValidTest'] = 'NULL';
$this->assertTrue($AJAXInterface->isOptionalIDValid('isOptionalIDValidValidTest'), "'NULL' should be a valid optional ID");
}
