/**
* Test whether true is returned when an empty value is passed as an argument
*/
public function test_entity_certificate_code_no_code()
{
$this->load_csv_data();
$result = entity_certificate_code_exists('');
$this->assertEquals(true, $result);
}
/**
* Make multiple attempts to get a unique certificate code.
*
* @param none
* @return string A unique certificate code.
*/
function cm_certificate_get_code()
{
$counter = 0;
$attempts = 10;
$maximumchar = 15;
$addchar = 0;
// This loop will try to generate a unique string 11 times. On the 11th attempt
// if string is still not unique then it will add to the length of the string
// If the length of the string exceed the maximum length set by $maximumchar
// then stop the loop and return an error
do {
$code = cm_certificate_generate_code($addchar);
$exists = curriculum_code_exists($code);
$exists = $exists && entity_certificate_code_exists($code);
if (!$exists) {
return $code;
}
// If the counter is equal to the number of attempts
if ($counter == $attempts) {
// Set counter back to zero and add a character to the string
$counter = 0;
$addchar++;
}
// increment counter otherwise this is an infinite loop
$counter++;
} while ($maximumchar >= $addchar);
// Check if the length has exceeded the maximum length
if ($maximumchar < $addchar) {
if (!cm_certificate_email_random_number_fail($this)) {
$message = get_string('certificate_email_fail', 'local_elisprogram');
$OUTPUT->notification($message);
}
print_error('certificate_code_error', 'local_elisprogram');
}
}
