diff --git a/core/modules/config/lib/Drupal/config/Tests/ConfigSchemaTestBase.php b/core/modules/config/lib/Drupal/config/Tests/ConfigSchemaTestBase.php
index 61eee7e..b31551a 100644
--- a/core/modules/config/lib/Drupal/config/Tests/ConfigSchemaTestBase.php
+++ b/core/modules/config/lib/Drupal/config/Tests/ConfigSchemaTestBase.php
@@ -2,11 +2,12 @@
 
 /**
  * @file
- * Contains Drupal\config\Tests\DefaultConfigTest.
+ * Contains Drupal\config\Tests\ConfigSchemaTestBase.
  */
 
 namespace Drupal\config\Tests;
 
+use Drupal\Core\Config\Schema\ArrayElement;
 use Drupal\Core\Config\Schema\Property;
 use Drupal\Core\Config\TypedConfigManagerInterface;
 use Drupal\Core\TypedData\Type\BooleanInterface;
@@ -38,22 +39,13 @@
   protected $configName;
 
   /**
+   * Global state for whether the config has a valid schema.
+   *
    * @var boolean
    */
   protected $configPass;
 
   /**
-   * {@inheritdoc}
-   */
-  public static function getInfo() {
-    return array(
-      'name' => 'Default configuration',
-      'description' => 'Tests that default configuration provided by all modules matches schema.',
-      'group' => 'Configuration',
-    );
-  }
-
-  /**
    * Asserts the TypedConfigManager has a valid schema for the configuration.
    *
    * @param \Drupal\Core\Config\TypedConfigManagerInterface $typed_config
@@ -92,44 +84,46 @@ public function assertConfigSchema(TypedConfigManagerInterface $typed_config, $c
    *   Returns mixed value.
    */
   protected function checkValue($key, $value) {
+
+    try {
+      $element = $this->schema->get($key);
+    }
+    catch (SchemaIncompleteException $e) {
+      $this->fail("{$this->configName}:$key has no schema.");
+    }
     if (is_scalar($value) || $value === NULL) {
-      try {
-        $success = FALSE;
-        $type = gettype($value);
-        $element = $this->schema->get($key);
-        if ($element instanceof PrimitiveInterface) {
-          if ($type == 'integer' && $element instanceof IntegerInterface) {
-            $success = TRUE;
-          }
-          if ($type == 'double' && $element instanceof FloatInterface) {
-            $success = TRUE;
-          }
-          if ($type == 'boolean' && $element instanceof BooleanInterface) {
-            $success = TRUE;
-          }
-          if ($type == 'string' && ($element instanceof StringInterface || $element instanceof Property)) {
-            $success = TRUE;
-          }
-          // Null values are allowed for all types.
-          if ($value === NULL) {
-            $success = TRUE;
-          }
+      $success = FALSE;
+      $type = gettype($value);
+      if ($element instanceof PrimitiveInterface) {
+        if ($type == 'integer' && $element instanceof IntegerInterface) {
+          $success = TRUE;
         }
-        else {
-          // @todo throw an exception due to an incomplete schema. Only possible
-          //   once https://drupal.org/node/1910624 is complete.
+        if ($type == 'double' && $element instanceof FloatInterface) {
+          $success = TRUE;
         }
-        $class = get_class($element);
-        if (!$success) {
-          $this->fail("{$this->configName}:$key has the wrong schema. Variable type is $type and schema class is $class.");
+        if ($type == 'boolean' && $element instanceof BooleanInterface) {
+          $success = TRUE;
+        }
+        if ($type == 'string' && ($element instanceof StringInterface || $element instanceof Property)) {
+          $success = TRUE;
+        }
+        // Null values are allowed for all scalar types.
+        if ($value === NULL) {
+          $success = TRUE;
         }
       }
-      catch (SchemaIncompleteException $e) {
-        $this->fail("{$this->configName}:$key has no schema.");
+      if (!$success) {
+        $class = get_class($element);
+        $this->fail("{$this->configName}:$key has the wrong schema. Variable type is $type and schema class is $class.");
       }
     }
     else {
-      // Any non-scalar value must be an array.
+      if (!$element instanceof ArrayElement) {
+        $this->fail("Non-scalar {$this->configName}:$key is not defined as an array type (such as mapping or sequence).");
+      }
+
+      // Go on processing so we can get errors on all levels. Any non-scalar
+      // value must be an array so cast to an array.
       if (!is_array($value)) {
         $value = (array) $value;
       }
diff --git a/core/modules/entity/config/schema/entity.schema.yml b/core/modules/entity/config/schema/entity.schema.yml
index a6c87f0..0fc9af7 100644
--- a/core/modules/entity/config/schema/entity.schema.yml
+++ b/core/modules/entity/config/schema/entity.schema.yml
@@ -127,6 +127,12 @@ entity.form_display.*.*.*:
     dependencies:
       type: config_dependencies
       label: 'Dependencies'
+    hidden:
+      type: sequence
+      label: 'Hidden'
+      sequence:
+        - type: boolean
+          label: 'Component'
 
 # Default schema for entity display field with undefined type.
 entity_view_display.field.*:
diff --git a/core/modules/image/config/schema/image.schema.yml b/core/modules/image/config/schema/image.schema.yml
index 7545c12..5b642b3 100644
--- a/core/modules/image/config/schema/image.schema.yml
+++ b/core/modules/image/config/schema/image.schema.yml
@@ -126,6 +126,29 @@ field.image.instance_settings:
       type: field_default_image
       label: 'Default value'
 
+field.image.value:
+  type: sequence
+  label: 'Default value'
+  sequence:
+    - type: mapping
+      label: 'Default image'
+      mapping:
+        fid:
+          type: integer
+          label: 'File ID'
+        alt:
+          type: string
+          label: 'Alternate text'
+        title:
+          type: string
+          label: 'Title text'
+        width:
+          type: integer
+          label: 'Width'
+        height:
+          type: integer
+          label: 'Height'
+
 entity_view_display.field.image:
   type: entity_field_view_display_base
   label: 'Image field display format settings'
diff --git a/core/modules/update/tests/modules/update_test/config/schema/update_test.schema.yml b/core/modules/update/tests/modules/update_test/config/schema/update_test.schema.yml
index cbe32d4..2235f2b 100644
--- a/core/modules/update/tests/modules/update_test/config/schema/update_test.schema.yml
+++ b/core/modules/update/tests/modules/update_test/config/schema/update_test.schema.yml
@@ -5,19 +5,19 @@ update_test.settings:
   label: 'Update test settings'
   mapping:
     system_info:
-      type: seqeuence
+      type: sequence
       label: 'System info'
       sequence:
         - type: string
           label: 'Value'
     update_status:
-      type: seqeuence
+      type: sequence
       label: 'Update status'
       sequence:
         - type: string
           label: 'Value'
     xml_map:
-      type: seqeuence
+      type: sequence
       label: 'XML map'
       sequence:
         - type: string
diff --git a/core/modules/user/config/schema/user.schema.yml b/core/modules/user/config/schema/user.schema.yml
index 7f61921..7361704 100644
--- a/core/modules/user/config/schema/user.schema.yml
+++ b/core/modules/user/config/schema/user.schema.yml
@@ -171,3 +171,9 @@ action.configuration.user_remove_role_action:
 action.configuration.user_unblock_user_action:
   type: action_configuration_default
   label: 'Unblock the selected users configuration'
+
+search.plugin.user_search:
+  type: sequence
+  label: 'User search'
+  sequence:
+    - type: undefined
diff --git a/core/modules/views/config/schema/views.argument_validator.schema.yml b/core/modules/views/config/schema/views.argument_validator.schema.yml
index 3dbc9d7..6e3cb44 100644
--- a/core/modules/views/config/schema/views.argument_validator.schema.yml
+++ b/core/modules/views/config/schema/views.argument_validator.schema.yml
@@ -22,8 +22,11 @@ views.argument_validator_entity:
   type: mapping
   mapping:
     bundles:
-      type: boolean
+      type: sequence
       label: 'Bundles'
+      sequence:
+        - type: string
+          label: 'Bundle'
     access:
       type: boolean
       label: 'Access'
diff --git a/core/modules/views/config/schema/views.cache.schema.yml b/core/modules/views/config/schema/views.cache.schema.yml
index 1139df6..3e90332 100644
--- a/core/modules/views/config/schema/views.cache.schema.yml
+++ b/core/modules/views/config/schema/views.cache.schema.yml
@@ -1,20 +1,29 @@
 # Schema for the views cache.
 
 views.cache.none:
-  type: mapping
-  label: 'None'
+  type: views_cache
+  label: 'No caching'
   mapping:
-    type:
-      type: string
-      label: 'Cache type'
+    options:
+      type: sequence
+      label: 'Options'
+      sequence:
+        - type: undefined
+
+views.cache.tag:
+  type: views_cache
+  label: 'Tag based caching'
+  mapping:
+    options:
+      type: sequence
+      label: 'Options'
+      sequence:
+        - type: undefined
 
 views.cache.time:
-  type: mapping
-  label: 'None'
+  type: views_cache
+  label: 'Time based caching'
   mapping:
-    type:
-      type: string
-      label: 'Time-based'
     options:
       type: mapping
       label: 'Cache options'
diff --git a/core/modules/views/config/schema/views.data_types.schema.yml b/core/modules/views/config/schema/views.data_types.schema.yml
index efbf369..9e8e12f 100644
--- a/core/modules/views/config/schema/views.data_types.schema.yml
+++ b/core/modules/views/config/schema/views.data_types.schema.yml
@@ -49,12 +49,6 @@ views_display:
           label: 'Provider'
     cache:
       type: views.cache.[type]
-      label: 'Caching'
-      mapping:
-        type:
-          label: 'Cache type'
-        provider:
-          label: 'Provider'
     empty:
       type: sequence
       label: 'No results behavior'
@@ -852,3 +846,14 @@ views_entity_row:
     view_mode:
       type: string
       label: 'View mode'
+
+views_cache:
+  type: mapping
+  label: 'Cache configuration'
+  mapping:
+    type:
+      type: string
+      label: 'Cache type'
+    provider:
+      type: string
+      label: 'Provider'
diff --git a/core/profiles/standard/config/install/field.instance.node.article.field_tags.yml b/core/profiles/standard/config/install/field.instance.node.article.field_tags.yml
index 18b58c2..369306a 100644
--- a/core/profiles/standard/config/install/field.instance.node.article.field_tags.yml
+++ b/core/profiles/standard/config/install/field.instance.node.article.field_tags.yml
@@ -2,6 +2,7 @@ id: node.article.field_tags
 entity_type: node
 bundle: article
 field_name: field_tags
+field_type: taxonomy_term_reference
 label: Tags
 description: 'Enter a comma-separated list. For example: Amsterdam, Mexico City, "Cleveland, Ohio"'
 required: false