class RobotReferenceTest

class RobotReferenceTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'config_entity_example',
        'node',
        'field_ui',
    ];
    
    /**
     * {@inheritdoc}
     *
     * We use the minimal profile because otherwise local actions aren't placed in
     * a block anywhere.
     */
    protected $profile = 'minimal';
    
    /**
     * Ensure we can use robot entities as reference fields.
     */
    public function testEntityReference() {
        $assert = $this->assertSession();
        $type = $this->createContentType();
        $this->drupalLogin($this->createUser([
            'create ' . $type->id() . ' content',
            'administer node fields',
        ]));
        // - Go to the "manage fields" section of a content entity.
        $this->drupalGet('admin/structure/types/manage/' . $type->id() . '/fields');
        $assert->statusCodeEquals(200);
        // - Click on the "add field" button.
        $this->clickLink('Add field');
        // - Under "Reference" select "other".
        // - Choose a label and click continue.
        $this->drupalPostForm(NULL, [
            'new_storage_type' => 'entity_reference',
            'field_name' => 'robot_reference',
            'label' => 'robot_reference',
        ], 'Save and continue');
        $assert->statusCodeEquals(200);
        // - Under configuration select "robot".
        $this->drupalPostForm(NULL, [
            'settings[target_type]' => 'robot',
        ], 'Save field settings');
        $assert->statusCodeEquals(200);
        // - Create a content entity containing the created reference field. Select
        //   "Marvin, the paranoid android".
        // - Click save.
        $robot = Robot::loadMultiple();
        
        /* @var $robot \Drupal\config_entity_example\Entity\Robot */
        $robot = reset($robot);
        $this->drupalPostForm(Url::fromRoute('node.add', [
            'node_type' => $type->id(),
        ]), [
            'title[0][value]' => 'title',
            'field_robot_reference[0][target_id]' => $robot->label(),
        ], 'Save');
        $assert->statusCodeEquals(200);
        $assert->pageTextContains($robot->label());
    }

}