public function FieldSqlStorageTestCase::testFieldCompareDataModification in Drupal 7

Tests the expected return values of _field_sql_storage_write_compare().

File

modules/field/modules/field_sql_storage/field_sql_storage.test, line 287

Tests for field_sql_storage.module.

Class

FieldSqlStorageTestCase

Tests field storage.

Code

public function testFieldCompareDataModification() {
  $langcode = LANGUAGE_NONE;
  $field_info = field_info_field($this->field_name);

  // Make sure we have 2 sample field values that are unique.
  $value1 = 0;
  $value2 = 0;
  while ($value1 == $value2) {
    $value1 = mt_rand();
    $value2 = (string) mt_rand();
  }

  // Create the 2 entities to compare.
  $entity = field_test_create_stub_entity();
  $entity->{$this->field_name}[$langcode][]['value'] = $value1;
  $entity1 = clone $entity;
  $entity2 = clone $entity;

  // Make sure that it correctly compares identical entities.
  $this
    ->assert(!_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'The entities are identical.');

  // Compare to an empty object.
  $this
    ->assert(_field_sql_storage_write_compare($field_info, $entity1, new stdClass()), 'The entity is not the same as an empty object.');

  // Change one of the values.
  $entity2->{$this->field_name}[$langcode][0]['value'] = $value2;
  $this
    ->assert(_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'The values are not the same.');

  // Reset $entity2.
  $entity2 = clone $entity;

  // Duplicate the value on one of the entities.
  $entity1->{$this->field_name}[$langcode][]['value'] = $value1;
  $this
    ->assert(_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'The fields do not have the same number of values.');

  // Add a second value to both entities.
  $entity2->{$this->field_name}[$langcode][]['value'] = $value2;
  $this
    ->assert(_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'The values are not the same.');

  // Replace the array containing the value with the actual value.
  $entity2->{$this->field_name}[$langcode] = $entity2->{$this->field_name}[$langcode][0];
  $this
    ->assert(_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'The array to hold field values is replaced by the value.');

  // Null one value.
  $entity2->{$this->field_name}[$langcode] = NULL;
  $this
    ->assert(_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'One field is NULL and the other is not.');

  // Null both values.
  $entity1->{$this->field_name}[$langcode] = NULL;
  $this
    ->assert(!_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'Both fields are NULL.');

  // Unset one of the fields.
  unset($entity2->{$this->field_name});
  $this
    ->assert(_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'One field structure is unset.');

  // Unset both of the fields.
  unset($entity1->{$this->field_name});
  $this
    ->assert(!_field_sql_storage_write_compare($field_info, $entity1, $entity2), 'Both field structures are unset.');
}