function FieldAttachStorageTestCase::testFieldAttachSaveLoad in Drupal 7

Check field values insert, update and load.

Works independently of the underlying field storage backend. Inserts or updates random field data and then loads and verifies the data.

File

modules/field/tests/field.test, line 151

Tests for field.module.

Class

FieldAttachStorageTestCase

Unit test class for storage-related field_attach_* functions.

Code

function testFieldAttachSaveLoad() {

  // Configure the instance so that we test hook_field_load() (see
  // field_test_field_load() in field_test.module).
  $this->instance['settings']['test_hook_field_load'] = TRUE;
  field_update_instance($this->instance);
  $langcode = LANGUAGE_NONE;
  $entity_type = 'test_entity';
  $values = array();

  // TODO : test empty values filtering and "compression" (store consecutive deltas).
  // Preparation: create three revisions and store them in $revision array.
  for ($revision_id = 0; $revision_id < 3; $revision_id++) {
    $revision[$revision_id] = field_test_create_stub_entity(0, $revision_id, $this->instance['bundle']);

    // Note: we try to insert one extra value.
    $values[$revision_id] = $this
      ->_generateTestFieldValues($this->field['cardinality'] + 1);
    $current_revision = $revision_id;

    // If this is the first revision do an insert.
    if (!$revision_id) {
      $revision[$revision_id]->{$this->field_name}[$langcode] = $values[$revision_id];
      field_attach_insert($entity_type, $revision[$revision_id]);
    }
    else {

      // Otherwise do an update.
      $revision[$revision_id]->{$this->field_name}[$langcode] = $values[$revision_id];
      field_attach_update($entity_type, $revision[$revision_id]);
    }
  }

  // Confirm current revision loads the correct data.
  $entity = field_test_create_stub_entity(0, 0, $this->instance['bundle']);
  field_attach_load($entity_type, array(
    0 => $entity,
  ));

  // Number of values per field loaded equals the field cardinality.
  $this
    ->assertEqual(count($entity->{$this->field_name}[$langcode]), $this->field['cardinality'], 'Current revision: expected number of values');
  for ($delta = 0; $delta < $this->field['cardinality']; $delta++) {

    // The field value loaded matches the one inserted or updated.
    $this
      ->assertEqual($entity->{$this->field_name}[$langcode][$delta]['value'], $values[$current_revision][$delta]['value'], format_string('Current revision: expected value %delta was found.', array(
      '%delta' => $delta,
    )));

    // The value added in hook_field_load() is found.
    $this
      ->assertEqual($entity->{$this->field_name}[$langcode][$delta]['additional_key'], 'additional_value', format_string('Current revision: extra information for value %delta was found', array(
      '%delta' => $delta,
    )));
  }

  // Confirm each revision loads the correct data.
  foreach (array_keys($revision) as $revision_id) {
    $entity = field_test_create_stub_entity(0, $revision_id, $this->instance['bundle']);
    field_attach_load_revision($entity_type, array(
      0 => $entity,
    ));

    // Number of values per field loaded equals the field cardinality.
    $this
      ->assertEqual(count($entity->{$this->field_name}[$langcode]), $this->field['cardinality'], format_string('Revision %revision_id: expected number of values.', array(
      '%revision_id' => $revision_id,
    )));
    for ($delta = 0; $delta < $this->field['cardinality']; $delta++) {

      // The field value loaded matches the one inserted or updated.
      $this
        ->assertEqual($entity->{$this->field_name}[$langcode][$delta]['value'], $values[$revision_id][$delta]['value'], format_string('Revision %revision_id: expected value %delta was found.', array(
        '%revision_id' => $revision_id,
        '%delta' => $delta,
      )));

      // The value added in hook_field_load() is found.
      $this
        ->assertEqual($entity->{$this->field_name}[$langcode][$delta]['additional_key'], 'additional_value', format_string('Revision %revision_id: extra information for value %delta was found', array(
        '%revision_id' => $revision_id,
        '%delta' => $delta,
      )));
    }
  }
}