function FieldAttachStorageTestCase::testFieldAttachSaveLoad

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

core/modules/field/tests/field.test, line 126

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.
  $current_revision = NULL;
  $revision = array();
  for ($revision_id = 0; $revision_id < 3; $revision_id++) {
    $revision[$revision_id] = field_test_create_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_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_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)));
    }
  }
}