only in patch2:
unchanged:
--- a/tests/src/Functional/SocialAuthTwitterSettingsFormTest.php
+++ b/tests/src/Functional/SocialAuthTwitterSettingsFormTest.php
@@ -2,16 +2,16 @@
 
 namespace Drupal\Tests\social_auth_twitter\Functional;
 
-use Drupal\Tests\BrowserTestBase;
+use Drupal\social_api\SocialApiSettingsFormBaseTest;
 
 /**
- * Test Social Auth Twitter module functionality of settings' forms.
+ * Test Social Auth Twitter module functionality of settings form.
  *
  * @group social_auth
  *
  * @ingroup social_auth_twitter
  */
-class SocialAuthTwitterAdminFormTest extends BrowserTestBase {
+class SocialAuthTwitterSettingsFormTest extends SocialApiSettingsFormBaseTest {
 
   /**
    * Modules to enable.
@@ -21,112 +21,35 @@ class SocialAuthTwitterAdminFormTest extends BrowserTestBase {
   public static $modules = ['social_auth_twitter'];
 
   /**
-   * The installation profile to use with this test.
-   *
-   * @var string
-   */
-  protected $profile = 'minimal';
-
-  /**
-   * A test user with no permissions.
-   *
-   * @var \Drupal\user\UserInterface
-   */
-  protected $noPermsUser;
-
-  /**
-   * A test user with corresponding permissions.
-   *
-   * @var \Drupal\user\UserInterface
-   */
-  protected $adminUser;
-
-  /**
    * {@inheritdoc}
    */
   protected function setUp() {
-    parent::setUp();
-
-    // Create a non-administrative user.
-    $this->noPermsUser = $this->drupalCreateUser();
+    $this->module = 'social_auth_twitter';
+    $this->socialNetwork = 'twitter';
+    $this->moduleType = 'social-auth';
 
-    // Create an administrative user.
-    $this->adminUser = $this->drupalCreateUser(
-        [
-          'access administration pages',
-          'administer social api authentication',
-        ]
-    );
+    parent::setUp();
   }
 
   /**
-   * Tests that module is available in social api list.
+   * {@inheritdoc}
    */
   public function testIsAvailableInIntegrationList() {
-    $this->drupalLogin($this->adminUser);
-    $this->drupalGet('/admin/config/social-api/social-auth');
+    $this->fields = ['consumer_key', 'consumer_secret'];
 
-    // Assert that module is enabled in social auth list.
-    $this->assertSession()->pageTextContains('social_auth_twitter');
+    parent::testIsAvailableInIntegrationList();
   }
 
   /**
-   * Tests configuration page.
+   * {@inheritdoc}
    */
-  public function testSettingsPage() {
-
-    $assert = $this->assertSession();
-
-    // Verifies that permissions are applied to the various defined paths.
-    $forbidden_paths = [
-      '/admin/config/social-api/social-auth/twitter',
+  public function testSettingsFormSubmission() {
+    $this->edit = [
+      'consumer_key' => $this->randomString(10),
+      'consumer_secret' => $this->randomString(10),
     ];
 
-    // Checks each of the paths to make sure we don't have access. At this point
-    // we haven't logged in any users, so the client is anonymous.
-    foreach ($forbidden_paths as $path) {
-      $this->drupalGet($path);
-      $assert->statusCodeEquals(403);
-    }
-
-    // Logs in user with no permissions.
-    $this->drupalLogin($this->noPermsUser);
-
-    // Should be the same result for forbidden paths, since the user needs
-    // special permissions for these paths.
-    foreach ($forbidden_paths as $path) {
-      $this->drupalGet($path);
-      $assert->statusCodeEquals(403);
-    }
-
-    // Logs in user with permissions.
-    $this->drupalLogin($this->adminUser);
-
-    // Forbidden paths aren't forbidden any more.
-    foreach ($forbidden_paths as $unforbidden) {
-      $this->drupalGet($unforbidden);
-      $assert->statusCodeEquals(200);
-    }
-
-    // Now that we have the admin user logged in, check the menu links.
-    $this->drupalGet('/admin/config/social-api/social-auth/twitter');
-    $assert->pageTextContains('Settings');
-    $assert->fieldExists('consumer_key');
-
-  }
-
-  /**
-   * Test module settings form.
-   */
-  public function testSubmitSettingsForm() {
-    $this->drupalLogin($this->adminUser);
-    $this->drupalGet('/admin/config/social-api/social-auth/twitter');
-    $edit = [
-      'consumer_key' => 'consumer_key',
-      'consumer_secret' => 'consumer_secret',
-    ];
-    $this->drupalPostForm('/admin/config/social-api/social-auth/twitter', $edit, t('Save configuration'));
-    $this->assertSession()->pageTextContains('The configuration options have been saved.');
+    parent::testSettingsFormSubmission();
   }
 
 }