<?php

/**
 * @file
 * Initial node_reference tests
 */

/**
 * Unit tests for referenceability of node types in entity forms.
 */
class NodeReferenceFormTest extends FieldTestCase {
  public static function getInfo() {
    return array(
      'name'        => 'Node reference',
      'description' => 'Make sure nodes are referenceable in entity forms.',
      'group'       => 'References',
    );
  }

  function setUp() {
    parent::setUp(array('node_reference', 'field_test'));

    $this->langcode = LANGUAGE_NONE;
    $this->field_name = 'test_node_reference';
    $this->field = array(
      'field_name'  => $this->field_name,
      'type'        => 'node_reference',
      'cardinality' => 1,
      'settings'    => array(
        'referenceable_types' => array_keys(node_type_get_names()),
      ),
    );
    $this->field = field_create_field($this->field);
    $this->instance = array(
      'field_name'  => $this->field_name,
      'entity_type' => 'test_entity',
      'bundle'      => 'test_bundle',
      'widget'      => array(
        'type'        => 'options_buttons',
      ),
    );

    $this->instance = field_create_instance($this->instance);

    $this->nodes = array();
    foreach (node_type_get_names() as $type_name => $type_title) {
      $this->nodes[$type_name] = $this->drupalCreateNode(array(
        'type'  => $type_name,
        'title' => $this->randomName(8),
      ));
      $this->pass(t('Created %type node %nid: %title', array(
        '%type'  => $type_name,
        '%nid'   => $this->nodes[$type_name]->nid,
        '%title' => $this->nodes[$type_name]->title,
      )), 'destination creation');
    }
  }

  function runReferenceableNodeTest($allowed, $group) {
    field_update_field(array(
      'field_name' => $this->field_name,
      'settings'   => array('referenceable_types' => array_keys($allowed)),
    ));
    $entity = field_test_create_stub_entity();
    $form = drupal_get_form('field_test_entity_form', $entity);
    $options = $form[$this->field_name][$this->langcode]['#options'];
    $this->assertTrue(isset($options['_none']), t('Empty choice offered for reference'), $group);
    unset($options['_none']);
    foreach ($this->nodes as $node) {
      if (isset($allowed[$node->type])) {
        $this->assertTrue(isset($options[$node->nid]),
          t('Node of type @type is referenceable', array('@type' => $node->type)),
          $group);
      }
      else {
        $this->assertFalse(isset($options[$node->nid]),
          t('Node of type @type is not referenceable', array('@type' => $node->type)),
          $group);
      }
      unset($options[$node->nid]);
    }
    $this->assertTrue(empty($options), t('No extra choice is referenceable'), $group);
  }

  /**
   * Test unlimited referencing
   */
  function testReferenceableNodeTypesAll() {
    $allowed = node_type_get_names();
    $this->runReferenceableNodeTest($allowed, t('Unimited referencing'));
  }

  /**
   * Test referencing a limited list of node types
   */
  function testReferenceableNodeTypesOne() {
    $allowed = array_slice(node_type_get_names(), 0, 1, TRUE);
    $this->runReferenceableNodeTest($allowed, t('Limited referencing'));
  }
}