class NodeIntegrationTest

class NodeIntegrationTest extends NodeTestBase {
  
  /**
   * Views used by this test.
   *
   * @var array
   */
  public static $testViews = [
    'test_node_view',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * Tests basic node view with a node type argument.
   */
  public function testNodeViewTypeArgument() {
    // Create two content types with three nodes each.
    $types = [];
    $all_nids = [];
    for ($i = 0; $i < 2; $i++) {
      $type = $this->drupalCreateContentType([
        'name' => '<em>' . $this->randomMachineName() . '</em>',
      ]);
      $types[] = $type;
      for ($j = 0; $j < 5; $j++) {
        // Ensure the right order of the nodes.
        $node = $this->drupalCreateNode([
          'type' => $type->id(),
          'created' => REQUEST_TIME - ($i * 5 + $j),
        ]);
        $nodes[$type->id()][$node->id()] = $node;
        $all_nids[] = $node->id();
      }
    }
    $this->drupalGet('test-node-view');
    $this->assertSession()
      ->statusCodeEquals(404);
    $this->drupalGet('test-node-view/all');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->assertNids($all_nids);
    foreach ($types as $type) {
      $this->drupalGet("test-node-view/{$type->id()}");
      $this->assertSession()
        ->assertEscaped($type->label());
      $this->assertNids(array_keys($nodes[$type->id()]));
    }
  }
  
  /**
   * Ensures that a list of nodes appear on the page.
   *
   * @param array $expected_nids
   *   An array of node IDs.
   *
   * @internal
   */
  protected function assertNids(array $expected_nids = []) : void {
    $result = $this->xpath('//span[@class="field-content"]');
    $nids = [];
    foreach ($result as $element) {
      $nids[] = (int) $element->getText();
    }
    $this->assertEquals($expected_nids, $nids);
  }

}