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diff --git a/web/core/modules/node/tests/src/Functional/NodeTestBase.php b/web/core/modules/node/tests/src/Functional/NodeTestBase.php
new file mode 100644
index 000000000..2ef0d73c5
--- /dev/null
+++ b/web/core/modules/node/tests/src/Functional/NodeTestBase.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace Drupal\Tests\node\Functional;
+
+use Drupal\Core\Session\AccountInterface;
+use Drupal\node\NodeInterface;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Sets up page and article content types.
+ */
+abstract class NodeTestBase extends BrowserTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['node', 'datetime'];
+
+  /**
+   * The node access control handler.
+   *
+   * @var \Drupal\Core\Entity\EntityAccessControlHandlerInterface
+   */
+  protected $accessHandler;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    // Create Basic page and Article node types.
+    if ($this->profile != 'standard') {
+      $this->drupalCreateContentType([
+        'type' => 'page',
+        'name' => 'Basic page',
+        'display_submitted' => FALSE,
+      ]);
+      $this->drupalCreateContentType(['type' => 'article', 'name' => 'Article']);
+    }
+    $this->accessHandler = \Drupal::entityManager()->getAccessControlHandler('node');
+  }
+
+  /**
+   * Asserts that node access correctly grants or denies access.
+   *
+   * @param array $ops
+   *   An associative array of the expected node access grants for the node
+   *   and account, with each key as the name of an operation (e.g. 'view',
+   *   'delete') and each value a Boolean indicating whether access to that
+   *   operation should be granted.
+   * @param \Drupal\node\NodeInterface $node
+   *   The node object to check.
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The user account for which to check access.
+   */
+  public function assertNodeAccess(array $ops, NodeInterface $node, AccountInterface $account) {
+    foreach ($ops as $op => $result) {
+      $this->assertEqual($result, $this->accessHandler->access($node, $op, $account), $this->nodeAccessAssertMessage($op, $result, $node->language()->getId()));
+    }
+  }
+
+  /**
+   * Asserts that node create access correctly grants or denies access.
+   *
+   * @param string $bundle
+   *   The node bundle to check access to.
+   * @param bool $result
+   *   Whether access should be granted or not.
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The user account for which to check access.
+   * @param string|null $langcode
+   *   (optional) The language code indicating which translation of the node
+   *   to check. If NULL, the untranslated (fallback) access is checked.
+   */
+  public function assertNodeCreateAccess($bundle, $result, AccountInterface $account, $langcode = NULL) {
+    $this->assertEqual($result, $this->accessHandler->createAccess($bundle, $account, [
+      'langcode' => $langcode,
+    ]), $this->nodeAccessAssertMessage('create', $result, $langcode));
+  }
+
+  /**
+   * Constructs an assert message to display which node access was tested.
+   *
+   * @param string $operation
+   *   The operation to check access for.
+   * @param bool $result
+   *   Whether access should be granted or not.
+   * @param string|null $langcode
+   *   (optional) The language code indicating which translation of the node
+   *   to check. If NULL, the untranslated (fallback) access is checked.
+   *
+   * @return string
+   *   An assert message string which contains information in plain English
+   *   about the node access permission test that was performed.
+   */
+  public function nodeAccessAssertMessage($operation, $result, $langcode = NULL) {
+    return format_string(
+      'Node access returns @result with operation %op, language code %langcode.',
+      [
+        '@result' => $result ? 'true' : 'false',
+        '%op' => $operation,
+        '%langcode' => !empty($langcode) ? $langcode : 'empty'
+      ]
+    );
+  }
+
+}