diff -u b/core/modules/forum/lib/Drupal/forum/Tests/ForumTest.php b/core/modules/forum/lib/Drupal/forum/Tests/ForumTest.php
--- b/core/modules/forum/lib/Drupal/forum/Tests/ForumTest.php
+++ b/core/modules/forum/lib/Drupal/forum/Tests/ForumTest.php
@@ -575,7 +575,7 @@
       $edit['taxonomy_forums'] = $this->root_forum['tid'];
       $edit['shadow'] = TRUE;
       $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save'));
-      $this->assertRaw(t('Forum topic %title has been updated.', array('%title' => $edit["title"])), 'Forum node was edited');
+      $this->assertRaw(t('Forum topic %title has been updated.', array('%title' => $edit['title[0][value]'])), 'Forum node was edited');
 
       // Verify topic was moved to a different forum.
       $forum_tid = db_query("SELECT tid FROM {forum} WHERE nid = :nid AND vid = :vid", array(
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
@@ -45,15 +45,15 @@
   function testNodeCreation() {
     // Create a node.
     $edit = array();
-    $edit["title"] = $this->randomName(8);
+    $edit['title[0][value]'] = $this->randomName(8);
     $edit["body[0][value]"] = $this->randomName(16);
     $this->drupalPostForm('node/add/page', $edit, t('Save'));
 
     // Check that the Basic page has been created.
-    $this->assertRaw(t('!post %title has been created.', array('!post' => 'Basic page', '%title' => $edit["title"])), 'Basic page created.');
+    $this->assertRaw(t('!post %title has been created.', array('!post' => 'Basic page', '%title' => $edit['title[0][value]'])), 'Basic page created.');
 
     // Check that the node exists in the database.
-    $node = $this->drupalGetNodeByTitle($edit["title"]);
+    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $this->assertTrue($node, 'Node found in database.');
   }
 
diff -u b/core/modules/system/lib/Drupal/system/Tests/Entity/EntityTranslationFormTest.php b/core/modules/system/lib/Drupal/system/Tests/Entity/EntityTranslationFormTest.php
--- b/core/modules/system/lib/Drupal/system/Tests/Entity/EntityTranslationFormTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Entity/EntityTranslationFormTest.php
@@ -60,14 +60,14 @@
 
     // Create a node with language Language::LANGCODE_NOT_SPECIFIED.
     $edit = array();
-    $edit["title"] = $this->randomName(8);
+    $edit['title[0][value]'] = $this->randomName(8);
     $edit['body[0][value]'] = $this->randomName(16);
 
     $this->drupalGet('node/add/page');
     $form_langcode = \Drupal::state()->get('entity_test.form_langcode') ?: FALSE;
     $this->drupalPostForm(NULL, $edit, t('Save'));
 
-    $node = $this->drupalGetNodeByTitle($edit["title"]);
+    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $this->assertTrue($node->language()->id == $form_langcode, 'Form language is the same as the entity language.');
 
     // Edit the node and test the form language.
@@ -95,7 +95,7 @@
     $edit['body[0][value]'] = $this->randomName(16);
     $edit['langcode'] = $langcode;
     $this->drupalPostForm('node/add/page', $edit, t('Save'));
-    $this->assertRaw(t('Basic page %title has been created.', array('%title' => $edit["title"])), 'Basic page created.');
+    $this->assertRaw(t('Basic page %title has been created.', array('%title' => $edit['title[0][value]'])), 'Basic page created.');
 
     // Check to make sure the node was created.
     $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
diff -u b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TermTest.php b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TermTest.php
--- b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TermTest.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TermTest.php
@@ -116,7 +116,7 @@
     $this->drupalPostForm('node/add/article', $edit, t('Save'));
 
     // Check that the term is displayed when the node is viewed.
-    $node = $this->drupalGetNodeByTitle($edit["title"]);
+    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $this->drupalGet('node/' . $node->id());
     $this->assertText($term1->label(), 'Term is displayed when viewing the node.');
 
@@ -184,7 +184,7 @@
 
     // Save, creating the terms.
     $this->drupalPostForm('node/add/article', $edit, t('Save'));
-    $this->assertRaw(t('@type %title has been created.', array('@type' => t('Article'), '%title' => $edit["title"])), 'The node was created successfully.');
+    $this->assertRaw(t('@type %title has been created.', array('@type' => t('Article'), '%title' => $edit['title[0][value]'])), 'The node was created successfully.');
     foreach ($terms as $term) {
       $this->assertText($term, 'The term was saved and appears on the node page.');
     }
@@ -205,7 +205,7 @@
     $term_names = array($term_objects['term3']->label(), $term_objects['term4']->label());
 
     // Get the node.
-    $node = $this->drupalGetNodeByTitle($edit["title"]);
+    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $this->drupalGet('node/' . $node->id());
 
     foreach ($term_names as $term_name) {
only in patch2:
unchanged:
--- a/core/modules/comment/lib/Drupal/comment/Tests/CommentLanguageTest.php
+++ b/core/modules/comment/lib/Drupal/comment/Tests/CommentLanguageTest.php
@@ -95,7 +95,7 @@ function testCommentLanguage() {
       // Create "Article" content.
       $title = $this->randomName();
       $edit = array(
-        'title' => $title,
+        'title[0][value]' => $title,
         'body[0][value]' => $this->randomName(),
         'langcode' => $node_langcode,
         'comment[0][status]' => COMMENT_OPEN,
only in patch2:
unchanged:
--- a/core/modules/dblog/lib/Drupal/dblog/Tests/DbLogTest.php
+++ b/core/modules/dblog/lib/Drupal/dblog/Tests/DbLogTest.php
@@ -309,7 +309,7 @@ private function doNode($type) {
     // Create a node using the form in order to generate an add content event
     // (which is not triggered by drupalCreateNode).
     $edit = $this->getContent($type);
-    $title = $edit["title"];
+    $title = $edit['title[0][value]'];
     $this->drupalPostForm('node/add/' . $type, $edit, t('Save'));
     $this->assertResponse(200);
     // Retrieve the node object.
@@ -369,7 +369,7 @@ private function getContent($type) {
     switch ($type) {
       case 'forum':
         $content = array(
-          'title' => $this->randomName(8),
+          'title[0][value]' => $this->randomName(8),
           'taxonomy_forums' => array(1),
           'body[0][value]' => $this->randomName(32),
         );
@@ -377,7 +377,7 @@ private function getContent($type) {
 
       default:
         $content = array(
-          'title' => $this->randomName(8),
+          'title[0][value]' => $this->randomName(8),
           'body[0][value]' => $this->randomName(32),
         );
         break;
only in patch2:
unchanged:
--- a/core/modules/entity_reference/lib/Drupal/entity_reference/Tests/EntityReferenceAutoCreateTest.php
+++ b/core/modules/entity_reference/lib/Drupal/entity_reference/Tests/EntityReferenceAutoCreateTest.php
@@ -99,7 +99,7 @@ public function testAutoCreate() {
     $this->assertFalse($result, 'Referenced node does not exist yet.');
 
     $edit = array(
-      'title' => $this->randomName(),
+      'title[0][value]' => $this->randomName(),
       'test_field[0][target_id]' => $new_title,
     );
     $this->drupalPostForm("node/add/$this->referencing_type", $edit, 'Save');
only in patch2:
unchanged:
--- a/core/modules/field/lib/Drupal/field/Tests/reEnableModuleFieldTest.php
+++ b/core/modules/field/lib/Drupal/field/Tests/reEnableModuleFieldTest.php
@@ -85,8 +85,8 @@ function testReEnabledField() {
     // Submit an article node with a telephone field so data exist for the
     // field.
     $edit = array(
-      "title" => $this->randomName(),
-      "field_telephone[0][value]" => "123456789",
+      'title[0][value]' => $this->randomName(),
+      'field_telephone[0][value]' => "123456789",
     );
     $this->drupalPostForm(NULL, $edit, t('Save'));
     $this->assertRaw('<a href="tel:123456789">');
only in patch2:
unchanged:
--- a/core/modules/file/lib/Drupal/file/Tests/FileFieldTestBase.php
+++ b/core/modules/file/lib/Drupal/file/Tests/FileFieldTestBase.php
@@ -139,7 +139,7 @@ function updateFileField($name, $type_name, $instance_settings = array(), $widge
    */
   function uploadNodeFile($file, $field_name, $nid_or_type, $new_revision = TRUE, $extras = array()) {
     $edit = array(
-      "title" => $this->randomName(),
+      'title[0][value]' => $this->randomName(),
       'revision' => (string) (int) $new_revision,
     );
 
only in patch2:
unchanged:
--- a/core/modules/filter/lib/Drupal/filter/Tests/FilterAdminTest.php
+++ b/core/modules/filter/lib/Drupal/filter/Tests/FilterAdminTest.php
@@ -232,13 +232,13 @@ function testFilterAdmin() {
     $text = $body . '<random>' . $extra_text . '</random>';
 
     $edit = array();
-    $edit["title"] = $this->randomName();
+    $edit['title[0][value]'] = $this->randomName();
     $edit['body[0][value]'] = $text;
     $edit['body[0][format]'] = $basic;
     $this->drupalPostForm('node/add/page', $edit, t('Save'));
-    $this->assertRaw(t('Basic page %title has been created.', array('%title' => $edit["title"])), 'Filtered node created.');
+    $this->assertRaw(t('Basic page %title has been created.', array('%title' => $edit['title[0][value]'])), 'Filtered node created.');
 
-    $node = $this->drupalGetNodeByTitle($edit["title"]);
+    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $this->assertTrue($node, 'Node found in database.');
 
     $this->drupalGet('node/' . $node->id());
only in patch2:
unchanged:
--- a/core/modules/image/lib/Drupal/image/Tests/ImageFieldTestBase.php
+++ b/core/modules/image/lib/Drupal/image/Tests/ImageFieldTestBase.php
@@ -114,7 +114,7 @@ function createImageField($name, $type_name, $field_settings = array(), $instanc
    */
   function uploadNodeImage($image, $field_name, $type) {
     $edit = array(
-      'title' => $this->randomName(),
+      'title[0][value]' => $this->randomName(),
     );
     $edit['files[' . $field_name . '_0]'] = drupal_realpath($image->uri);
     $this->drupalPostForm('node/add/' . $type, $edit, t('Save and publish'));
only in patch2:
unchanged:
--- a/core/modules/node/lib/Drupal/node/Tests/NodeTitleXSSTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeTitleXSSTest.php
@@ -29,7 +29,8 @@ function testNodeTitleXSS() {
 
     $xss = '<script>alert("xss")</script>';
     $title = $xss . $this->randomName();
-    $edit = array("title" => $title);
+    $edit = array();
+    $edit['title[0][value]'] = $title;
 
     $this->drupalPostForm('node/add/page', $edit, t('Preview'));
     $this->assertNoRaw($xss, 'Harmful tags are escaped when previewing a node.');
@@ -39,7 +40,7 @@ function testNodeTitleXSS() {
 
     $this->drupalGet('node/' . $node->id());
     // assertTitle() decodes HTML-entities inside the <title> element.
-    $this->assertTitle($edit["title"] . ' | Drupal', 'Title is diplayed when viewing a node.');
+    $this->assertTitle($title . ' | Drupal', 'Title is diplayed when viewing a node.');
     $this->assertNoRaw($xss, 'Harmful tags are escaped when viewing a node.');
 
     $this->drupalGet('node/' . $node->id() . '/edit');
only in patch2:
unchanged:
--- a/core/modules/number/lib/Drupal/number/Tests/NumberFieldTest.php
+++ b/core/modules/number/lib/Drupal/number/Tests/NumberFieldTest.php
@@ -199,7 +199,7 @@ function testNumberIntegerField() {
     // Create new content and check that prefix and suffix are shown.
     $rand_number = rand();
     $edit = array(
-      'title' => $this->randomName(),
+      'title[0][value]' => $this->randomName(),
       'field_' .$field_name . '[0][value]' => $rand_number,
     );
     $this->drupalPostForm("node/add/$type", $edit, t('Save'));
only in patch2:
unchanged:
--- a/core/modules/system/lib/Drupal/system/Tests/System/PageTitleTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/System/PageTitleTest.php
@@ -71,16 +71,16 @@ function testTitleTags() {
     $this->assertTrue(strpos(drupal_get_title(), '<em>') !== FALSE, 'Tags in title are not converted to entities when $output is PASS_THROUGH.');
     // Generate node content.
     $edit = array(
-      'title' => '!SimpleTest! ' . $title . $this->randomName(20),
+      'title[0][value]' => '!SimpleTest! ' . $title . $this->randomName(20),
       'body[0][value]' => '!SimpleTest! test body' . $this->randomName(200),
     );
     // Create the node with HTML in the title.
     $this->drupalPostForm('node/add/page', $edit, t('Save'));
 
-    $node = $this->drupalGetNodeByTitle($edit["title"]);
+    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $this->assertNotNull($node, 'Node created and found in database');
     $this->drupalGet("node/" . $node->id());
-    $this->assertText(check_plain($edit["title"]), 'Check to make sure tags in the node title are converted.');
+    $this->assertText(check_plain($edit['title[0][value]']), 'Check to make sure tags in the node title are converted.');
   }
   /**
    * Test if the title of the site is XSS proof.
only in patch2:
unchanged:
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/RssTest.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/RssTest.php
@@ -92,7 +92,7 @@ function testTaxonomyRss() {
 
     // Post an article.
     $edit = array();
-    $edit["title"] = $this->randomName();
+    $edit['title[0][value]'] = $this->randomName();
     $edit[$this->field_name . '[]'] = $term1->id();
     $this->drupalPostForm('node/add/article', $edit, t('Save'));
 
only in patch2:
unchanged:
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TermIndexTest.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TermIndexTest.php
@@ -103,14 +103,14 @@ function testTaxonomyIndex() {
 
     // Post an article.
     $edit = array();
-    $edit["title"] = $this->randomName();
+    $edit['title[0][value]'] = $this->randomName();
     $edit['body[0][value]'] = $this->randomName();
     $edit["{$this->field_name_1}[]"] = $term_1->id();
     $edit["{$this->field_name_2}[]"] = $term_1->id();
     $this->drupalPostForm('node/add/article', $edit, t('Save'));
 
     // Check that the term is indexed, and only once.
-    $node = $this->drupalGetNodeByTitle($edit["title"]);
+    $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
     $index_count = db_query('SELECT COUNT(*) FROM {taxonomy_index} WHERE nid = :nid AND tid = :tid', array(
       ':nid' => $node->id(),
       ':tid' => $term_1->id(),
only in patch2:
unchanged:
--- a/core/modules/telephone/lib/Drupal/telephone/Tests/TelephoneFieldTest.php
+++ b/core/modules/telephone/lib/Drupal/telephone/Tests/TelephoneFieldTest.php
@@ -87,8 +87,8 @@ function testTelephoneField() {
 
     // Test basic entery of telephone field.
     $edit = array(
-      "title" => $this->randomName(),
-      "field_telephone[0][value]" => "123456789",
+      'title[0][value]' => $this->randomName(),
+      'field_telephone[0][value]' => "123456789",
     );
 
     $this->drupalPostForm(NULL, $edit, t('Save'));
@@ -96,8 +96,8 @@ function testTelephoneField() {
 
     // Add number with a space in it. Need to ensure it is stripped on output.
     $edit = array(
-      "title" => $this->randomName(),
-      "field_telephone[0][value]" => "1234 56789",
+      'title[0][value]' => $this->randomName(),
+      'field_telephone[0][value]' => "1234 56789",
     );
 
     $this->drupalPostForm('node/add/article', $edit, t('Save'));