class RenderCacheWebTest

class RenderCacheWebTest extends ViewTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'block',
        'views_test_render_cache',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'starterkit_theme';
    
    /**
     * {@inheritdoc}
     */
    public static $testViews = [
        'node_id_argument',
    ];
    
    /**
     * The created nodes.
     *
     * @var \Drupal\node\NodeInterface[]
     */
    protected $nodes;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE, $modules = [
        'views_test_config',
    ]) : void {
        parent::setUp($import_test_views, $modules);
        $node_type = $this->drupalCreateContentType([
            'type' => 'test_type',
        ]);
        $node = Node::create([
            'title' => 'test title 1',
            'type' => $node_type->id(),
        ]);
        $node->save();
        $this->nodes[] = $node;
        $node = Node::create([
            'title' => 'test title 2',
            'type' => $node_type->id(),
        ]);
        $node->save();
        $this->nodes[] = $node;
    }
    
    /**
     * Tests rendering caching of a views block with arguments.
     */
    public function testEmptyView() {
        $this->placeBlock('views_block:node_id_argument-block_1', [
            'region' => 'header',
        ]);
        $this->drupalGet('<front>');
        $this->assertEquals([], $this->cssSelect('div.region-header div.views-field-title'));
        $this->drupalGet($this->nodes[0]
            ->toUrl());
        $result = $this->cssSelect('div.region-header div.views-field-title')[0]
            ->getText();
        $this->assertEquals('test title 1', $result);
        $this->drupalGet($this->nodes[1]
            ->toUrl());
        $result = $this->cssSelect('div.region-header div.views-field-title')[0]
            ->getText();
        $this->assertEquals('test title 2', $result);
        $this->drupalGet($this->nodes[0]
            ->toUrl());
        $result = $this->cssSelect('div.region-header div.views-field-title')[0]
            ->getText();
        $this->assertEquals('test title 1', $result);
    }
    
    /**
     * Tests render caching for display rendered with different args on same page.
     */
    public function testRepeatedDisplay() {
        $this->drupalGet("views_test_render_cache/node_id_argument/block_1/{$this->nodes[0]->id()}/{$this->nodes[1]->id()}");
        // Confirm there are two displays.
        $displays = $this->cssSelect('.views-element-container .view-id-node_id_argument.view-display-id-block_1');
        $this->assertCount(2, $displays, 'There are two displays');
        // First display should only have test title 1.
        $this->assertSame($this->nodes[0]
            ->getTitle(), $displays[0]->getText());
        // Second display should only have test title 2.
        $this->assertSame($this->nodes[1]
            ->getTitle(), $displays[1]->getText());
    }

}