function DrupalAlterTestCase::testDrupalAlter in Drupal 7

File

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

Tests for common.inc functionality.

Class

DrupalAlterTestCase

Tests for URL generation functions.

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, '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, '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, 'First argument to drupal_alter() was altered.');
  $this
    ->assertEqual($entity_copy, $entity_expected, 'Second argument to drupal_alter() was altered.');
  $this
    ->assertEqual($array2_copy, $array2_expected, '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, 'hook_TYPE_alter() implementations ran in correct order.');
}