protected function ReferenceSourceTest::findCharacterNotInString in FileField Sources 8

Find the first character that is not in string.

Only find for lower case character.

Parameters

string $string: String to check.

Return value

string First character that is not in the string.

1 call to ReferenceSourceTest::findCharacterNotInString()

ReferenceSourceTest::testAutocompletion in tests/src/Functional/ReferenceSourceTest.php

Test autocompletion.

File

tests/src/Functional/ReferenceSourceTest.php, line 100

Class

ReferenceSourceTest

Tests the reference source.

Namespace

Drupal\Tests\filefield_sources\Functional

Code

protected function findCharacterNotInString($string) {

  // Only check for lower case string.
  $string = mb_strtolower($string);

  // Lower case characters and numbers generated by
  // \Drupal\simpletest\TestBase::randomMachineName().
  $values = array_merge(range(97, 122), range(48, 57));
  foreach ($values as $value) {
    $character = chr($value);
    if (strpos($string, $character) === FALSE) {
      return $character;
    }
  }
}