function FieldCrudTestCase::testUpdateField

Test updating a field.

File

modules/field/tests/field.test, line 2747

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;
        $entity = field_test_create_stub_entity($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.
        $entity = field_test_create_stub_entity($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);
}