class FieldEntityLinkTest

class FieldEntityLinkTest extends ViewsKernelTestBase {
    use UserCreationTrait;
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_entity_test_link',
    ];
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'user',
        'entity_test',
    ];
    
    /**
     * An admin user account.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUpFixtures() {
        parent::setUpFixtures();
        // Create the anonymous user account and set it as current user.
        $this->setUpCurrentUser([
            'uid' => 0,
        ]);
        $this->installEntitySchema('entity_test');
        $this->installConfig([
            'user',
        ]);
        // Create some test entities.
        for ($i = 0; $i < 5; $i++) {
            EntityTest::create([
                'name' => $this->randomString(),
            ])
                ->save();
        }
        // Create and admin user.
        $this->adminUser = $this->createUser([
            'view test entity',
        ], FALSE, TRUE);
        Role::load(AccountInterface::ANONYMOUS_ROLE)->grantPermission('view test entity')
            ->save();
    }
    
    /**
     * Tests entity link fields.
     */
    public function testEntityLink() {
        // Anonymous users cannot see edit/delete links.
        $expected_results = [
            'canonical' => TRUE,
            'edit-form' => FALSE,
            'delete-form' => FALSE,
            'canonical_raw' => TRUE,
            'canonical_raw_absolute' => TRUE,
        ];
        $this->doTestEntityLink(\Drupal::currentUser(), $expected_results);
        // Admin users cannot see all links.
        $expected_results = [
            'canonical' => TRUE,
            'edit-form' => TRUE,
            'delete-form' => TRUE,
            'canonical_raw' => TRUE,
            'canonical_raw_absolute' => TRUE,
        ];
        $this->doTestEntityLink($this->adminUser, $expected_results);
    }
    
    /**
     * Tests whether entity links behave as expected.
     *
     * @param \Drupal\Core\Session\AccountInterface $account
     *   The user account to be used to run the test;
     * @param bool[] $expected_results
     *   An associative array of expected results keyed by link template name.
     */
    protected function doTestEntityLink(AccountInterface $account, $expected_results) {
        \Drupal::currentUser()->setAccount($account);
        $view = Views::getView('test_entity_test_link');
        $view->preview();
        $info = [
            'canonical' => [
                'label' => 'View entity test',
                'field_id' => 'view_entity_test',
                'destination' => FALSE,
                'link' => TRUE,
                'options' => [],
                'relationship' => 'canonical',
            ],
            'edit-form' => [
                'label' => 'Edit entity test',
                'field_id' => 'edit_entity_test',
                'destination' => TRUE,
                'link' => TRUE,
                'options' => [],
                'relationship' => 'edit-form',
            ],
            'delete-form' => [
                'label' => 'Delete entity test',
                'field_id' => 'delete_entity_test',
                'destination' => TRUE,
                'link' => TRUE,
                'options' => [],
                'relationship' => 'delete-form',
            ],
            'canonical_raw' => [
                'field_id' => 'canonical_entity_test',
                'destination' => FALSE,
                'link' => FALSE,
                'options' => [],
                'relationship' => 'canonical',
            ],
            'canonical_raw_absolute' => [
                'field_id' => 'absolute_entity_test',
                'destination' => FALSE,
                'link' => FALSE,
                'options' => [
                    'absolute' => TRUE,
                ],
                'relationship' => 'canonical',
            ],
        ];
        $index = 0;
        foreach (EntityTest::loadMultiple() as $entity) {
            foreach ($expected_results as $template => $expected_result) {
                $expected_link = '';
                if ($expected_result) {
                    $path = $entity->toUrl($info[$template]['relationship'], $info[$template]['options'])
                        ->toString();
                    $destination = $info[$template]['destination'] ? '?destination=/' : '';
                    if ($info[$template]['link']) {
                        $expected_link = '<a href="' . $path . $destination . '" hreflang="en">' . $info[$template]['label'] . '</a>';
                    }
                    else {
                        $expected_link = $path;
                    }
                }
                $link = $view->style_plugin
                    ->getField($index, $info[$template]['field_id']);
                $this->assertEquals($expected_link, $link);
            }
            $index++;
        }
    }

}