function FieldCrudTestCase::testUpdateField

Test updating a field.

File

core/modules/field/tests/field.test, line 2471

Tests for field.module.

Class

FieldCrudTestCase

Code

function testUpdateField() {
  // Create a field with a defined cardinality, so that we can ensure it's
  // respected. Since cardinality enforcement is consistent across database
  // systems, it makes a good test case.
  $cardinality = 4;
  $field_definition = array(
    'field_name' => 'field_update',
    'type' => 'test_field',
    'cardinality' => $cardinality,
  );
  $field_definition = field_create_field($field_definition);
  $instance = array(
    'field_name' => 'field_update',
    'entity_type' => 'test_entity',
    'bundle' => 'test_bundle',
  );
  $instance = field_create_instance($instance);

  do {
    // We need a unique ID for our entity. $cardinality will do.
    $id = $cardinality;
    $entity = field_test_create_entity($id, $id, $instance['bundle']);
    // Fill in the entity with more values than $cardinality.
    for ($i = 0; $i < 20; $i++) {
      $entity->field_update[LANGUAGE_NONE][$i]['value'] = $i;
    }
    // Save the entity.
    field_attach_insert('test_entity', $entity);
    // Load back and assert there are $cardinality number of values.
    $entity = field_test_create_entity($id, $id, $instance['bundle']);
    field_attach_load('test_entity', array($id => $entity));
    $this->assertEqual(count($entity->field_update[LANGUAGE_NONE]), $field_definition['cardinality'], 'Cardinality is kept');
    // Now check the values themselves.
    for ($delta = 0; $delta < $cardinality; $delta++) {
      $this->assertEqual($entity->field_update[LANGUAGE_NONE][$delta]['value'], $delta, 'Value is kept');
    }
    // Increase $cardinality and set the field cardinality to the new value.
    $field_definition['cardinality'] = ++$cardinality;
    field_update_field($field_definition);
  } while ($cardinality < 6);
}