Reroll patch #114.

Closes #2771129

tests/src/Functional/ConfigImportTest.php

+<?php
+
+namespace Drupal\Tests\password_policy\Functional;
+
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests the user interface for importing configuration.
+ *
+ * @group config
+ */
+class ConfigImportTest extends BrowserTestBase {
+
+  /**
+   * Modules to install.
+   *
+   * @var array
+   */
+  public static $modules = ['config', 'password_policy'];
+
+  /**
+   * Test config import.
+   *
+   * Tests the config importer can import config without password_policy
+   * module being enabled when there is password_policy config present in
+   * sync.
+   */
+  public function testConfigImportDisabledModule() {
+    $this->drupalLogin($this->drupalCreateUser(['synchronize configuration']));
+    // Export config.
+    $this->copyConfig($this->container->get('config.storage'), $this->container->get('config.storage.sync'));
+    // Disable module.
+    \Drupal::service('module_installer')->uninstall(['password_policy']);
+    // Import config.
+    $this->configImporter()->import();
+  }
+
+}