diff -u b/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
--- b/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
@@ -63,11 +63,11 @@
   function testFailedPageCreation() {
     // Create a node.
     $edit = array(
-      'uid'             => $this->loggedInUser->id(),
-      'name'            => $this->loggedInUser->name,
-      'type'            => 'page',
-      'langcode'        => Language::LANGCODE_NOT_SPECIFIED,
-      'title[0][value]' => 'testing_transaction_exception',
+      'uid'      => $this->loggedInUser->id(),
+      'name'     => $this->loggedInUser->name,
+      'type'     => 'page',
+      'langcode' => Language::LANGCODE_NOT_SPECIFIED,
+      'title'    => 'testing_transaction_exception',
     );
 
     try {
@@ -80,12 +80,12 @@
 
     if (Database::getConnection()->supportsTransactions()) {
       // Check that the node does not exist in the database.
-      $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
+      $node = $this->drupalGetNodeByTitle($edit['title']);
       $this->assertFalse($node, 'Transactions supported, and node not found in database.');
     }
     else {
       // Check that the node exists in the database.
-      $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
+      $node = $this->drupalGetNodeByTitle($edit['title']);
       $this->assertTrue($node, 'Transactions not supported, and node found in database.');
 
       // Check that the failed rollback was logged.
reverted:
--- b/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php
+++ a/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php
@@ -79,11 +79,11 @@
     $edit = array(
       'uid' => $this->web_user->id(),
       'type' => 'article',
+      'title' => $this->randomName(8),
-      'title[0][value]' => $this->randomName(8),
     );
 
     entity_create('node', $edit)->save();
+    $node = $this->drupalGetNodeByTitle($edit['title']);
-    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $this->assertEqual($node->getCreatedTime(), REQUEST_TIME, 'Creating a node sets default "created" timestamp.');
     $this->assertEqual($node->getChangedTime(), REQUEST_TIME, 'Creating a node sets default "changed" timestamp.');
 
@@ -92,7 +92,7 @@
     $changed = $node->getChangedTime();
 
     $node->save();
+    $node = $this->drupalGetNodeByTitle($edit['title'], TRUE);
-    $node = $this->drupalGetNodeByTitle($edit['title[0][value]'], TRUE);
     $this->assertEqual($node->getCreatedTime(), $created, 'Updating a node preserves "created" timestamp.');
 
     // Programmatically set the timestamps using hook_node_presave.
@@ -113,7 +113,7 @@
     );
 
     entity_create('node', $edit)->save();
+    $node = $this->drupalGetNodeByTitle($edit['title']);
-    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $this->assertEqual($node->getCreatedTime(), 280299600, 'Creating a node uses user-set "created" timestamp.');
     $this->assertNotEqual($node->getChangedTime(), 979534800, 'Creating a node does not use user-set "changed" timestamp.');
 
@@ -122,7 +122,7 @@
     $node->changed = 280299600;
 
     $node->save();
+    $node = $this->drupalGetNodeByTitle($edit['title'], TRUE);
-    $node = $this->drupalGetNodeByTitle($edit['title[0][value]'], TRUE);
     $this->assertEqual($node->getCreatedTime(), 979534800, 'Updating a node uses user-set "created" timestamp.');
     $this->assertNotEqual($node->getChangedTime(), 280299600, 'Updating a node does not use user-set "changed" timestamp.');
   }
only in patch2:
unchanged:
--- a/core/modules/forum/lib/Drupal/forum/Tests/ForumNodeAccessTest.php
+++ b/core/modules/forum/lib/Drupal/forum/Tests/ForumNodeAccessTest.php
@@ -52,7 +52,7 @@ function testForumNodeAccess() {
     // Create a private node.
     $private_node_title = $this->randomName(20);
     $edit = array(
-      'title' => $private_node_title,
+      'title[0][value]' => $private_node_title,
       'body[0][value]' => $this->randomName(200),
       'private' => TRUE,
     );
@@ -63,7 +63,7 @@ function testForumNodeAccess() {
     // Create a public node.
     $public_node_title = $this->randomName(20);
     $edit = array(
-      'title' => $public_node_title,
+      'title[0][value]' => $public_node_title,
       'body[0][value]' => $this->randomName(200),
     );
     $this->drupalPostForm('node/add/forum', $edit, t('Save'), array('query' => array('forum_id' => 1)));
only in patch2:
unchanged:
--- a/core/modules/node/lib/Drupal/node/Tests/NodeFieldMultilingualTestCase.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeFieldMultilingualTestCase.php
@@ -70,7 +70,7 @@ function setUp() {
   function testMultilingualNodeForm() {
     // Create "Basic page" content.
     $langcode = language_get_default_langcode('node', 'page');
-    $title_key = "title";
+    $title_key = 'title[0][value]';
     $title_value = $this->randomName(8);
     $body_key = 'body[0][value]';
     $body_value = $this->randomName(16);
@@ -114,7 +114,7 @@ function testMultilingualNodeForm() {
    */
   function testMultilingualDisplaySettings() {
     // Create "Basic page" content.
-    $title_key = "title";
+    $title_key = 'title[0][value]';
     $title_value = $this->randomName(8);
     $body_key = 'body[0][value]';
     $body_value = $this->randomName(16);