diff --git a/core/lib/Drupal/Core/Config/ConfigInstaller.php b/core/lib/Drupal/Core/Config/ConfigInstaller.php
index 6c0bd7e..0ac79c0 100644
--- a/core/lib/Drupal/Core/Config/ConfigInstaller.php
+++ b/core/lib/Drupal/Core/Config/ConfigInstaller.php
@@ -498,12 +498,6 @@ protected function findDefaultConfigWithUnmetDependencies(StorageInterface $stor
    *   TRUE if the dependencies are met, FALSE if not.
    */
   protected function validateDependencies($config_name, array $data, array $enabled_extensions, array $all_config) {
-    // All the migrate tests will fail if we check since they install the
-    // migrate_drupal module but only set up the dependencies for the single
-    // migration they are testing.
-    if (strpos($config_name, 'migrate.migration.') === 0) {
-      return TRUE;
-    }
     if (isset($data['dependencies'])) {
       $all_dependencies = $data['dependencies'];
 
diff --git a/core/lib/Drupal/Core/Config/InstallStorage.php b/core/lib/Drupal/Core/Config/InstallStorage.php
index f70b2b1..6a97b31 100644
--- a/core/lib/Drupal/Core/Config/InstallStorage.php
+++ b/core/lib/Drupal/Core/Config/InstallStorage.php
@@ -108,9 +108,9 @@ public function exists($name) {
    *
    * @throws \Drupal\Core\Config\StorageException
    */
-//  public function write($name, array $data) {
-//    throw new StorageException('Write operation is not allowed.');
-//  }
+  public function write($name, array $data) {
+    throw new StorageException('Write operation is not allowed.');
+  }
 
   /**
    * Overrides Drupal\Core\Config\FileStorage::delete().
diff --git a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_term_node.yml b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_term_node.yml
index c3480e0..6d0befe 100644
--- a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_term_node.yml
+++ b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_term_node.yml
@@ -27,4 +27,4 @@ dependencies:
     - migrate.migration.d6_vocabulary_entity_form_display
   module:
     - migrate_drupal
-    - node
\ No newline at end of file
+    - node
diff --git a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_term_node_revision.yml b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_term_node_revision.yml
index 4094dd9..9193738 100644
--- a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_term_node_revision.yml
+++ b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_term_node_revision.yml
@@ -26,4 +26,4 @@ dependencies:
     - migrate.migration.d6_term_node
   module:
     - migrate_drupal
-    - node
\ No newline at end of file
+    - node
diff --git a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_upload.yml b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_upload.yml
index cab3ec7..fedda76 100644
--- a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_upload.yml
+++ b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_upload.yml
@@ -31,4 +31,4 @@ dependencies:
     - migrate.migration.d6_node
   module:
     - migrate_drupal
-    - node
\ No newline at end of file
+    - node
diff --git a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_user_picture_field.yml b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_user_picture_field.yml
index c631857..253bd0c 100644
--- a/core/modules/migrate_drupal/config/optional/migrate.migration.d6_user_picture_field.yml
+++ b/core/modules/migrate_drupal/config/optional/migrate.migration.d6_user_picture_field.yml
@@ -20,4 +20,4 @@ destination:
   plugin: entity:field_storage_config
 dependencies:
   module:
-    - user
\ No newline at end of file
+    - user