--- /dev/null
+<?php
+
+namespace Drupal\Tests\locale\Functional;
+
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests installing in a different language with a non-dev version string.
+ *
+ * @group locale
+ */
+class LocaleNonInteractiveInstallTest extends BrowserTestBase {
+
+ /**
+ * Gets the version string to use in the translation file.
+ *
+ * @return string
+ * The version string to test, for example, '8.0.0' or '8.6.x'.
+ */
+ protected function getVersionStringToTest() {
+ include_once $this->root . '/core/includes/install.core.inc';
+ $version = _install_get_version_info(\Drupal::VERSION);
+ return $version['major'] . '.0.0';
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function installParameters() {
+ $parameters = parent::installParameters();
+ // Install Drupal in German.
+ $parameters['parameters']['langcode'] = 'de';
+ // Create a po file so we don't attempt to download one from
+ // localize.drupal.org and to have a test translation that will not change.
+ \Drupal::service('file_system')->mkdir($this->publicFilesDirectory . '/translations', NULL, TRUE);
+ $contents = <<<ENDPO
+msgid ""
+msgstr ""
+
+msgid "Enter the password that accompanies your username."
+msgstr "Geben sie das Passwort für ihren Benutzernamen ein."
+
+ENDPO;
+ $version = $this->getVersionStringToTest();
+ file_put_contents($this->publicFilesDirectory . "/translations/drupal-{$version}.de.po", $contents);
+ return $parameters;
+ }
+
+ /**
+ * Tests that the expected translated text appears on the login screen.
+ */
+ public function testInstallerTranslations() {
+ $this->drupalGet('user/login');
+ $this->assertSession()->responseContains('Geben sie das Passwort für ihren Benutzernamen ein.');
+ }
+
+}