function FieldBulkDeleteTestCase::testPurgeInstance in Drupal 7

Verify that field data items and instances are purged when an instance is deleted.

File

modules/field/tests/field.test, line 3605

Tests for field.module.

Class

FieldBulkDeleteTestCase

Unit test class for field bulk delete and batch purge functionality.

Code

function testPurgeInstance() {

  // Start recording hook invocations.
  field_test_memorize();
  $bundle = reset($this->bundles);
  $field = reset($this->fields);

  // Delete the instance.
  $instance = field_info_instance($this->entity_type, $field['field_name'], $bundle);
  field_delete_instance($instance);

  // No field hooks were called.
  $mem = field_test_memorize();
  $this
    ->assertEqual(count($mem), 0, 'No field hooks were called');
  $batch_size = 2;
  for ($count = 8; $count >= 0; $count -= $batch_size) {

    // Purge two entities.
    field_purge_batch($batch_size);

    // There are $count deleted entities left.
    $query = new EntityFieldQuery();
    $found = $query
      ->fieldCondition($field)
      ->entityCondition('bundle', $bundle)
      ->deleted(TRUE)
      ->execute();
    $this
      ->assertEqual($count ? count($found['test_entity']) : count($found), $count, 'Correct number of entities found after purging 2');
  }

  // Check hooks invocations.
  // - hook_field_load() (multiple hook) should have been called on all
  // entities by pairs of two.
  // - hook_field_delete() should have been called once for each entity in the
  // bundle.
  $actual_hooks = field_test_memorize();
  $hooks = array();
  $stubs = $this
    ->_generateStubEntities($this->entity_type, $this->entities_by_bundles[$bundle], $field['field_name']);
  foreach (array_chunk($stubs, $batch_size, TRUE) as $chunk) {
    $hooks['field_test_field_load'][] = $chunk;
  }
  foreach ($stubs as $stub) {
    $hooks['field_test_field_delete'][] = $stub;
  }
  $this
    ->checkHooksInvocations($hooks, $actual_hooks);

  // The instance still exists, deleted.
  $instances = field_read_instances(array(
    'field_id' => $field['id'],
    'deleted' => 1,
  ), array(
    'include_deleted' => 1,
    'include_inactive' => 1,
  ));
  $this
    ->assertEqual(count($instances), 1, 'There is one deleted instance');

  // Purge the instance.
  field_purge_batch($batch_size);

  // The instance is gone.
  $instances = field_read_instances(array(
    'field_id' => $field['id'],
    'deleted' => 1,
  ), array(
    'include_deleted' => 1,
    'include_inactive' => 1,
  ));
  $this
    ->assertEqual(count($instances), 0, 'The instance is gone');

  // The field still exists, not deleted, because it has a second instance.
  $fields = field_read_fields(array(
    'id' => $field['id'],
  ), array(
    'include_deleted' => 1,
    'include_inactive' => 1,
  ));
  $this
    ->assertTrue(isset($fields[$field['id']]), 'The field exists and is not deleted');
}