DrupalAlterTestCase::testDrupalAlter

File

modules/simpletest/tests/common.test, line 24

Tests for common.inc functionality.

Code

function testDrupalAlter() {
  // This test depends on Bartik, so make sure that it is always the current
  // active theme.
  global $theme, $base_theme_info;
  $theme = 'bartik';
  $base_theme_info = array();

  $array = array('foo' => 'bar');
  $entity = new stdClass();
  $entity->foo = 'bar';

  // Verify alteration of a single argument.
  $array_copy = $array;
  $array_expected = array('foo' => 'Drupal theme');
  drupal_alter('drupal_alter', $array_copy);
  $this->assertEqual($array_copy, $array_expected, t('Single array was altered.'));

  $entity_copy = clone $entity;
  $entity_expected = clone $entity;
  $entity_expected->foo = 'Drupal theme';
  drupal_alter('drupal_alter', $entity_copy);
  $this->assertEqual($entity_copy, $entity_expected, t('Single object was altered.'));

  // Verify alteration of multiple arguments.
  $array_copy = $array;
  $array_expected = array('foo' => 'Drupal theme');
  $entity_copy = clone $entity;
  $entity_expected = clone $entity;
  $entity_expected->foo = 'Drupal theme';
  $array2_copy = $array;
  $array2_expected = array('foo' => 'Drupal theme');
  drupal_alter('drupal_alter', $array_copy, $entity_copy, $array2_copy);
  $this->assertEqual($array_copy, $array_expected, t('First argument to drupal_alter() was altered.'));
  $this->assertEqual($entity_copy, $entity_expected, t('Second argument to drupal_alter() was altered.'));
  $this->assertEqual($array2_copy, $array2_expected, t('Third argument to drupal_alter() was altered.'));

  // Verify alteration order when passing an array of types to drupal_alter().
  // common_test_module_implements_alter() places 'block' implementation after
  // other modules.
  $array_copy = $array;
  $array_expected = array('foo' => 'Drupal block theme');
  drupal_alter(array('drupal_alter', 'drupal_alter_foo'), $array_copy);
  $this->assertEqual($array_copy, $array_expected, t('hook_TYPE_alter() implementations ran in correct order.'));
}