function FieldAttachStorageTestCase::testFieldAttachSaveMissingData in Drupal 7

Tests insert and update with missing or NULL fields.

File

modules/field/tests/field.test, line 380

Tests for field.module.

Class

FieldAttachStorageTestCase

Unit test class for storage-related field_attach_* functions.

Code

function testFieldAttachSaveMissingData() {
  $entity_type = 'test_entity';
  $entity_init = field_test_create_stub_entity();
  $langcode = LANGUAGE_NONE;

  // Insert: Field is missing.
  $entity = clone $entity_init;
  field_attach_insert($entity_type, $entity);
  $entity = clone $entity_init;
  field_attach_load($entity_type, array(
    $entity->ftid => $entity,
  ));
  $this
    ->assertTrue(empty($entity->{$this->field_name}), 'Insert: missing field results in no value saved');

  // Insert: Field is NULL.
  field_cache_clear();
  $entity = clone $entity_init;
  $entity->{$this->field_name} = NULL;
  field_attach_insert($entity_type, $entity);
  $entity = clone $entity_init;
  field_attach_load($entity_type, array(
    $entity->ftid => $entity,
  ));
  $this
    ->assertTrue(empty($entity->{$this->field_name}), 'Insert: NULL field results in no value saved');

  // Add some real data.
  field_cache_clear();
  $entity = clone $entity_init;
  $values = $this
    ->_generateTestFieldValues(1);
  $entity->{$this->field_name}[$langcode] = $values;
  field_attach_insert($entity_type, $entity);
  $entity = clone $entity_init;
  field_attach_load($entity_type, array(
    $entity->ftid => $entity,
  ));
  $this
    ->assertEqual($entity->{$this->field_name}[$langcode], $values, 'Field data saved');

  // Update: Field is missing. Data should survive.
  field_cache_clear();
  $entity = clone $entity_init;
  field_attach_update($entity_type, $entity);
  $entity = clone $entity_init;
  field_attach_load($entity_type, array(
    $entity->ftid => $entity,
  ));
  $this
    ->assertEqual($entity->{$this->field_name}[$langcode], $values, 'Update: missing field leaves existing values in place');

  // Update: Field is NULL. Data should be wiped.
  field_cache_clear();
  $entity = clone $entity_init;
  $entity->{$this->field_name} = NULL;
  field_attach_update($entity_type, $entity);
  $entity = clone $entity_init;
  field_attach_load($entity_type, array(
    $entity->ftid => $entity,
  ));
  $this
    ->assertTrue(empty($entity->{$this->field_name}), 'Update: NULL field removes existing values');

  // Re-add some data.
  field_cache_clear();
  $entity = clone $entity_init;
  $values = $this
    ->_generateTestFieldValues(1);
  $entity->{$this->field_name}[$langcode] = $values;
  field_attach_update($entity_type, $entity);
  $entity = clone $entity_init;
  field_attach_load($entity_type, array(
    $entity->ftid => $entity,
  ));
  $this
    ->assertEqual($entity->{$this->field_name}[$langcode], $values, 'Field data saved');

  // Update: Field is empty array. Data should be wiped.
  field_cache_clear();
  $entity = clone $entity_init;
  $entity->{$this->field_name} = array();
  field_attach_update($entity_type, $entity);
  $entity = clone $entity_init;
  field_attach_load($entity_type, array(
    $entity->ftid => $entity,
  ));
  $this
    ->assertTrue(empty($entity->{$this->field_name}), 'Update: empty array removes existing values');
}