<?php

/**
 * Tests for the Entity Reference field.
 */
class EntityReferenceFieldTestCase extends DrupalWebTestCase {

  /**
   * The admin user that the test runs under.
   *
   * @var Drupal\user\Entity
   */
  public $admin_user;
  /**
   * The content type that is created.
   *
   * @var string
   */
  protected $contentType;

  /**
   * {@inheritdoc}
   */
  public static function getInfo() {
    return array(
      'name' => 'Entity Reference field',
      'description' => 'Tests for the entity reference field formatters and widgets.',
      'group' => 'Entity Reference',
    );
  }

  /**
   * {@inheritdoc}
   */
  public function setUp() {
    parent::setUp(array('field_ui', 'entity', 'ctools', 'entityreference'));

    // Create test user.
    $this->admin_user = $this->drupalCreateUser(array(
      'access content',
      'administer content types',
      'administer nodes',
      'bypass node access',
      'administer filters',
      'administer fields',
    ));
    $this->drupalLogin($this->admin_user);

    // Create content type.
    $this->contentType = strtolower($this->randomName(8));
    $this->drupalCreateContentType(array('name' => $this->contentType, 'type' => $this->contentType));
  }

  /**
   * Creates an entity reference field.
   *
   * @param string $field_name
   *   The name of the field.
   * @param string $label
   *   The label of the field.
   */
  protected function createEntityReferenceField($field_name, $label = 'Test label') {
    $bundle_path = 'admin/structure/types/manage/' . $this->contentType;

    // First step: 'Add new field' on the 'Manage fields' page.
    $this->drupalPost($bundle_path . '/fields', array(
      'fields[_add_new_field][label]' => $label,
      'fields[_add_new_field][field_name]' => $field_name,
      'fields[_add_new_field][type]' => 'entityreference',
      'fields[_add_new_field][widget_type]' => 'entityreference_autocomplete',
    ), t('Save'));

    // Second step: 'Instance settings' form.
    $this->drupalPost(NULL, array(), t('Save field settings'));

    // Third step: confirm.
    $this->drupalPost(NULL, array(), t('Save settings'));
  }

  /**
   * Tests the "Show links" setting for the field formatter "Rendered entity".
   */
  public function testShowLinksSetting() {
    // Create an entity reference field.
    $this->createEntityReferenceField('test');

    // Set formatter to "Rendered entity".
    $this->drupalPost('admin/structure/types/manage/' . $this->contentType . '/display', array(
      'fields[field_test][type]' => 'entityreference_entity_view',
    ), t('Save'));

    // Set view mode option to "teaser" and enable the "Show links" option.
    $this->drupalPostAJAX(NULL, array(), 'field_test_formatter_settings_edit');
    $edit = array(
      'fields[field_test][settings_edit_form][settings][view_mode]' => 'teaser',
      'fields[field_test][settings_edit_form][settings][links]' => 1,
    );
    $this->drupalPostAJAX(NULL, $edit, 'field_test_formatter_settings_update');
    $this->drupalPost(NULL, array(), t('Save'));

    // Assert that the formatter says that links will be shown.
    $this->assertText('Display links');
    $this->assertNoText('Do not display links');

    // Create two nodes. The second node will reference the first one.
    $node1 = $this->drupalCreateNode(array(
      'type' => $this->contentType,
    ));
    $node2 = $this->drupalCreateNode(array(
      'type' => $this->contentType,
      'field_test' => array(
        LANGUAGE_NONE => array(
          0 => array(
            'target_id' => $node1->nid,
          ),
        ),
      ),
    ));

    // Assert that a read more link is shown on node 2.
    $this->drupalGet('node/2');
    $this->assertText('Read more');

    // Now turn off the "Show links" setting.
    $this->drupalGet('admin/structure/types/manage/' . $this->contentType . '/display');
    $this->drupalPostAJAX(NULL, array(), 'field_test_formatter_settings_edit');
    $edit = array(
      'fields[field_test][settings_edit_form][settings][links]' => FALSE,
    );
    $this->drupalPostAJAX(NULL, $edit, 'field_test_formatter_settings_update');
    $this->drupalPost(NULL, array(), t('Save'));

    // Assert that the formatter says that no links will be shown.
    $this->assertText('Do not display links');

    // And assert that the read more link is no longer displayed on node 2.
    $this->drupalGet('node/2');
    $this->assertNoText('Read more');
  }

}