Issue #2031175 by Sutharsan, penyaskito, vijaycs85, Berdir: Translation imports take a lot of time in tests even when not needed.

core/modules/config_translation/lib/Drupal/config_translation/Tests/ConfigTranslationListUiTest.php

@@ -80,6 +80,12 @@ class ConfigTranslationListUiTest extends WebTestBase {
     // Create and log in user.
     $this->adminUser = $this->drupalCreateUser($permissions);
     $this->drupalLogin($this->adminUser);
+
+    // Enable import of translations. By default this is disabled for automated
+    // tests.
+    \Drupal::config('locale.settings')
+      ->set('translation.import_enabled', TRUE)
+      ->save();
   }
 
   /**

core/modules/config_translation/lib/Drupal/config_translation/Tests/ConfigTranslationUiTest.php

@@ -566,6 +566,12 @@ class ConfigTranslationUiTest extends WebTestBase {
    * Test translation storage in locale storage.
    */
   public function testLocaleDBStorage() {
+    // Enable import of translations. By default this is disabled for automated
+    // tests.
+    \Drupal::config('locale.settings')
+      ->set('translation.import_enabled', TRUE)
+      ->save();
+
     $this->drupalLogin($this->admin_user);
 
     $langcode = 'xx';

core/modules/locale/lib/Drupal/locale/Tests/LocaleConfigTranslationTest.php

@@ -35,6 +35,12 @@ class LocaleConfigTranslationTest extends WebTestBase {
     parent::setUp();
     // Add a default locale storage for all these tests.
     $this->storage = $this->container->get('locale.storage');
+
+    // Enable import of translations. By default this is disabled for automated
+    // tests.
+    \Drupal::config('locale.settings')
+      ->set('translation.import_enabled', TRUE)
+      ->save();
   }
 
   /**

core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php

@@ -43,6 +43,12 @@ class LocaleImportFunctionalTest extends WebTestBase {
 
     $this->admin_user = $this->drupalCreateUser(array('administer languages', 'translate interface', 'access administration pages'));
     $this->drupalLogin($this->admin_user);
+
+    // Enable import of translations. By default this is disabled for automated
+    // tests.
+    \Drupal::config('locale.settings')
+      ->set('translation.import_enabled', TRUE)
+      ->save();
   }
 
   /**

core/modules/locale/lib/Drupal/locale/Tests/LocaleUpdateBase.php

@@ -51,6 +51,12 @@ class LocaleUpdateBase extends WebTestBase {
     $this->timestamp_medium = REQUEST_TIME - 200;
     $this->timestamp_new = REQUEST_TIME - 100;
     $this->timestamp_now = REQUEST_TIME;
+
+    // Enable import of translations. By default this is disabled for automated
+    // tests.
+    \Drupal::config('locale.settings')
+      ->set('translation.import_enabled', TRUE)
+      ->save();
   }
 
   /**

core/profiles/testing/config/locale.settings.yml

@@ -0,0 +1,12 @@
+cache_strings: true
+javascript:
+  directory: languages
+translation:
+  use_source: remote_and_local
+  default_filename: '%project-%version.%language.po'
+  default_server_pattern: 'http://ftp.drupal.org/files/translations/%core/%project/%project-%version.%language.po'
+  overwrite_customized: false
+  overwrite_not_customized: true
+  update_interval_days: 0
+  path: ''
+  import_enabled: false