class RowRenderCacheTest

class RowRenderCacheTest extends ViewsKernelTestBase {
    use UserCreationTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'user',
        'node',
    ];
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_row_render_cache',
        'test_row_render_cache_none',
    ];
    
    /**
     * An editor user account.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $editorUser;
    
    /**
     * A power user account.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $powerUser;
    
    /**
     * A regular user account.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $regularUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUpFixtures() {
        parent::setUpFixtures();
        $this->installEntitySchema('user');
        $this->installEntitySchema('node');
        $this->installSchema('node', 'node_access');
        $type = NodeType::create([
            'type' => 'test',
        ]);
        $type->save();
        $this->editorUser = $this->createUser([
            'bypass node access',
        ]);
        $this->powerUser = $this->createUser([
            'access content',
            'create test content',
            'edit own test content',
            'delete own test content',
        ]);
        $this->regularUser = $this->createUser([
            'access content',
        ]);
        // Create some test entities.
        for ($i = 0; $i < 5; $i++) {
            Node::create([
                'title' => 'b' . $i . $this->randomMachineName(),
                'type' => 'test',
            ])
                ->save();
        }
        // Create a power user node.
        Node::create([
            'title' => 'z' . $this->randomMachineName(),
            'uid' => $this->powerUser
                ->id(),
            'type' => 'test',
        ])
            ->save();
    }
    
    /**
     * Tests complex field rewriting and uncacheable field handlers.
     */
    public function testAdvancedCaching() {
        // Test that row field output is actually cached and with the proper cache
        // contexts.
        $this->doTestRenderedOutput($this->editorUser);
        $this->doTestRenderedOutput($this->editorUser, TRUE);
        $this->doTestRenderedOutput($this->powerUser);
        $this->doTestRenderedOutput($this->powerUser, TRUE);
        $this->doTestRenderedOutput($this->regularUser);
        $this->doTestRenderedOutput($this->regularUser, TRUE);
        // Alter the result set order and check that counter is still working
        // correctly.
        $this->doTestRenderedOutput($this->editorUser);
        
        /** @var \Drupal\node\NodeInterface $node */
        $node = Node::load(6);
        $node->setTitle('a' . $this->randomMachineName());
        $node->save();
        $this->doTestRenderedOutput($this->editorUser);
    }
    
    /**
     * Tests that rows are not cached when the none cache plugin is used.
     */
    public function testNoCaching() {
        $this->setCurrentUser($this->regularUser);
        $view = Views::getView('test_row_render_cache_none');
        $view->setDisplay();
        $view->preview();
        
        /** @var \Drupal\Core\Render\RenderCacheInterface $render_cache */
        $render_cache = $this->container
            ->get('render_cache');
        
        /** @var \Drupal\views\Plugin\views\cache\CachePluginBase $cache_plugin */
        $cache_plugin = $view->display_handler
            ->getPlugin('cache');
        foreach ($view->result as $row) {
            $keys = $cache_plugin->getRowCacheKeys($row);
            $cache = [
                '#cache' => [
                    'keys' => $keys,
                    'contexts' => [
                        'languages:language_interface',
                        'theme',
                        'user.permissions',
                    ],
                ],
            ];
            $element = $render_cache->get($cache);
            $this->assertFalse($element);
        }
    }
    
    /**
     * Check whether the rendered output matches expectations.
     *
     * @param \Drupal\Core\Session\AccountInterface $account
     *   The user account to tests rendering with.
     * @param bool $check_cache
     *   (optional) Whether explicitly test render cache entries.
     */
    protected function doTestRenderedOutput(AccountInterface $account, $check_cache = FALSE) {
        $this->setCurrentUser($account);
        $view = Views::getView('test_row_render_cache');
        $view->setDisplay();
        $view->preview();
        
        /** @var \Drupal\Core\Render\RenderCacheInterface $render_cache */
        $render_cache = $this->container
            ->get('render_cache');
        
        /** @var \Drupal\views\Plugin\views\cache\CachePluginBase $cache_plugin */
        $cache_plugin = $view->display_handler
            ->getPlugin('cache');
        // Retrieve nodes and sort them in alphabetical order to match view results.
        $nodes = Node::loadMultiple();
        usort($nodes, function (NodeInterface $a, NodeInterface $b) {
            return strcmp($a->label(), $b->label());
        });
        $index = 0;
        foreach ($nodes as $node) {
            $nid = $node->id();
            $access = $node->access('update');
            $counter = $index + 1;
            $expected = "{$nid}: {$counter} (just in case: {$nid})";
            $counter_output = $view->style_plugin
                ->getField($index, 'counter');
            $this->assertEquals($expected, $counter_output);
            $node_url = $node->toUrl()
                ->toString();
            $expected = "<a href=\"{$node_url}\"><span class=\"da-title\">{$node->label()}</span> <span class=\"counter\">{$counter_output}</span></a>";
            $output = $view->style_plugin
                ->getField($index, 'title');
            $this->assertEquals($expected, $output);
            $expected = $access ? "<a href=\"{$node_url}/edit?destination=/\" hreflang=\"en\">edit</a>" : "";
            $output = $view->style_plugin
                ->getField($index, 'edit_node');
            $this->assertEquals($expected, $output);
            $expected = $access ? "<a href=\"{$node_url}/delete?destination=/\" hreflang=\"en\">delete</a>" : "";
            $output = $view->style_plugin
                ->getField($index, 'delete_node');
            $this->assertEquals($expected, $output);
            $expected = $access ? '  <div class="dropbutton-wrapper"><div class="dropbutton-widget"><ul class="dropbutton">' . '<li><a href="' . $node_url . '/edit?destination=/" hreflang="en">Edit</a></li>' . '<li><a href="' . $node_url . '/delete?destination=/" hreflang="en">Delete</a></li>' . '</ul></div></div>' : '';
            $output = $view->style_plugin
                ->getField($index, 'operations');
            $this->assertEquals($expected, $output);
            if ($check_cache) {
                $keys = $cache_plugin->getRowCacheKeys($view->result[$index]);
                $cache = [
                    '#cache' => [
                        'keys' => $keys,
                        'contexts' => [
                            'languages:language_interface',
                            'theme',
                            'user.permissions',
                        ],
                    ],
                ];
                $element = $render_cache->get($cache);
                $this->assertNotEmpty($element);
            }
            $index++;
        }
    }

}