good.php in Coder 8.3.x

File

tests/DrupalPractice/good/good.php

<?php

/**
 * @file
 * This file should throw no warnings/errors.
 */
$form['vocab_fieldset']['entity_view_modes'] = array(
  '#type' => 'select',
  '#prefix' => '<div id="entity_view_modes_div">',
  '#suffix' => '</div>',
  '#title' => t('View Mode'),
  '#description' => '<p>' . t('test description') . '</p>',
  '#required' => 1,
  '#options' => array(),
  '#ajax' => array(
    'callback' => 'custom_listing_pages_entity_vocabulary_listing',
    'wrapper' => 'vocab_fieldset_div',
    'method' => 'replace',
    'effect' => 'fade',
  ),
);
print_r($form);

/**
 * Ignoring the array value in a foreach loop is OK.
 */
function test1() {
  $array = array(
    1,
    2,
  );
  foreach ($array as $key => $value) {
    print $key;
  }
  try {
    print 'foo';
  } catch (Exception $e) {

    // $e is unused here, which is fine.
    print 'error';
  }

  // Initializing an array on the fly is allowed.
  $items['foo'] = 'bar';
  return $items;
}

/**
 * Variables that are used by reference are allowed to not be read.
 */
function test2() {
  $list =& some_other_function();
  $list = array();
}

/**
 * Variables that are used by reference are allowed to not be read.
 */
function test3(&$variables, $hook) {
  foreach ($variables['items'] as &$item) {
    $item['image'] = 'foo';
  }
}

/**
 * Global variables that are used in ifs should not be flagged as unused.
 */
function test4() {
  global $user;
  $x = 5;
  if ($x == 5) {
    $user = 123;
  }
}

/**
 * A trait containing helper methods for language handling.
 */
trait LangcodeTrait {

  /**
   * Name of language.
   *
   * @var string
   */
  protected $langcode;

  /**
   * A fully-populated language object.
   *
   * @var \Drupal\core\Language\LanguageInterface|null
   */
  protected $lang;

  /**
   * Select language.
   *
   * @param string $langcode
   *   Language code.
   *
   * @return $this
   *   Current instance.
   */
  public function setLangcode($langcode) {
    $this->langcode = $langcode;
    $this->lang = \Drupal::languageManager()
      ->getLanguage($this->langcode);
    return $this;
  }

  /**
   * Get code of currently active language.
   *
   * @return string
   *   Language code.
   */
  public function getLangcode() {
    if (!isset($this->langcode)) {
      $lang = \Drupal::languageManager()
        ->getCurrentLanguage();
      $this
        ->setLangcode($lang
        ->getId());
    }
    return $this->langcode;
  }

}

/**
 * Testing closures.
 */
class ClosureTest extends TestCase {

  /**
   * Use $this in a closure, which should be a defined variable.
   */
  public function getEntities($limit) {

    // Create an array of dummy entities.
    $entities = array_map(function () {
      return $this
        ->prophesize(EntityInterface::class)
        ->reveal();
    }, range(1, $limit));
    return $entities;
  }

}

// Unused variable test.
$clicks = array();
$places = array();
$debug = '';
enumerate_menu('primary', function ($item) use (&$places, &$debug, &$clicks) {
  $pos = array_pop($places);
  $n_clicks = 34 - $pos;
  generateClicks($item['node'], $n_clicks);
  $clicks[$item['mlid']] = $n_clicks;
  $debug .= "\nLink {$item['node']->title} got {$n_clicks} clicks and should end on {$pos} place.";
});
class PrivateMethodTest {

  /**
   * This private method is used as array filter callback, so not unused.
   */
  private function usedAsCallback() {
    return FALSE;
  }
  public function test() {
    return array_filter(array(), [
      $this,
      'usedAsCallback',
    ]);
  }

}
class StrictSchemaEnabled {

  /**
   * {@inheritdoc}
   */
  protected $strictConfigSchema = TRUE;

}

Functions

Name	Description
test1	Ignoring the array value in a foreach loop is OK.
test2	Variables that are used by reference are allowed to not be read.
test3	Variables that are used by reference are allowed to not be read.
test4	Global variables that are used in ifs should not be flagged as unused.

Classes

Name	Description
ClosureTest	Testing closures.
PrivateMethodTest
StrictSchemaEnabled

Traits

Name	Description
LangcodeTrait	A trait containing helper methods for language handling.