diff --git a/core/modules/locale/src/Tests/LocaleConfigTranslationImportTest.php b/core/modules/locale/src/Tests/LocaleConfigTranslationImportTest.php
new file mode 100644
index 0000000..a3c1a37
--- /dev/null
+++ b/core/modules/locale/src/Tests/LocaleConfigTranslationImportTest.php
@@ -0,0 +1,84 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\locale\Tests\LocaleConfigTranslationImportTest.
+ */
+
+namespace Drupal\locale\Tests;
+
+use Drupal\simpletest\WebTestBase;
+use Drupal\language\Entity\ConfigurableLanguage;
+
+/**
+ * Tests translation update's effects on configuration translations.
+ *
+ * @group locale
+ */
+class LocaleConfigTranslationImportTest extends WebTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = array('language', 'update', 'locale_test_translate');
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $admin_user = $this->drupalCreateUser(array('administer modules', 'administer site configuration', 'administer languages', 'access administration pages', 'administer permissions'));
+    $this->drupalLogin($admin_user);
+
+    // Update module should not go out to d.o to check for updates. We override
+    // the url to the default update_test xml path. But without providing
+    // a mock xml file, no update data will be found.
+    \Drupal::config('update.settings')->set('fetch.url', _url('update-test', array('absolute' => TRUE)))->save();
+  }
+
+  /**
+   * Test update changes configuration translations if enabled after language.
+   */
+  public function testConfigTranslationImport() {
+
+    // Add a language. The Afrikaans translation file of locale_test_translate
+    // (test.af.po) has been prepared with a configuration translation.
+    ConfigurableLanguage::createFromLangcode('af')->save();
+
+    // Enable locale module.
+    $this->container->get('module_installer')->install(array('locale'));
+    $this->resetAll();
+
+    // Enable import of translations. By default this is disabled for automated
+    // tests.
+    \Drupal::config('locale.settings')
+      ->set('translation.import_enabled', TRUE)
+      ->save();
+
+    // Add translation permissions now that the locale module has been enabled.
+    $edit = array(
+      'authenticated[translate interface]' => 'translate interface',
+    );
+    $this->drupalPostForm('admin/people/permissions', $edit, t('Save permissions'));
+
+    // Check and update the translation status. This will import the Afrikaans
+    // translations of locale_test_translate module.
+    $this->drupalGet('admin/reports/translations/check');
+
+    // Override the Drupal core translation status to be up to date.
+    // Drupal core should not be a subject in this test.
+    $status = locale_translation_get_status();
+    $status['drupal']['af']->type = 'current';
+    \Drupal::state()->set('locale.translation_status', $status);
+
+    $this->drupalPostForm('admin/reports/translations', array(), t('Update translations'));
+
+    // Check if configuration translations have been imported.
+    $override =  \Drupal::languageManager()->getLanguageConfigOverride('af', 'system.maintenance');
+    $this->assertEqual($override->get('message'), 'Ons is tans besig met onderhoud op @site. Wees asseblief geduldig, ons sal binnekort weer terug wees.');
+  }
+
+}
diff --git a/core/modules/locale/tests/test.af.po b/core/modules/locale/tests/test.af.po
new file mode 100644
index 0000000..2391464
--- /dev/null
+++ b/core/modules/locale/tests/test.af.po
@@ -0,0 +1,10 @@
+msgid ""
+msgstr ""
+"Project-Id-Version: Drupal 8\\n"
+"MIME-Version: 1.0\\n"
+"Content-Type: text/plain; charset=UTF-8\\n"
+"Content-Transfer-Encoding: 8bit\\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\\n"
+
+msgid "@site is currently under maintenance. We should be back shortly. Thank you for your patience."
+msgstr "Ons is tans besig met onderhoud op @site. Wees asseblief geduldig, ons sal binnekort weer terug wees."