tests/src/FunctionalJavascript/ExtlinkTest.php     | 46 +++++++++++++++++
 tests/src/FunctionalJavascript/ExtlinkTestBase.php | 59 ++++++++++++++++++++++
 2 files changed, 105 insertions(+)

diff --git a/tests/src/FunctionalJavascript/ExtlinkTest.php b/tests/src/FunctionalJavascript/ExtlinkTest.php
new file mode 100644
index 0000000..3a40b1d
--- /dev/null
+++ b/tests/src/FunctionalJavascript/ExtlinkTest.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Drupal\Tests\extlink\FunctionalJavascript;
+
+/**
+ * Testing the basic functionality of External Links.
+ *
+ * @group Extlink
+ */
+class ExtlinkTest extends ExtlinkTestBase {
+
+  /**
+   * Checks to see if we can get the front page.
+   */
+  public function testExtlinkOnFrontPage() {
+    // Login.
+    $this->drupalLogin($this->adminUser);
+
+    // Create a node with an external link.
+    $settings = [
+      'type' => 'page',
+      'title' => 'test page',
+      'body' => [
+        ['value' => '<a href="http://google.com">Google!</a>',
+         'format' => filter_default_format(),
+        ]
+      ],
+    ];
+    $node = $this->drupalCreateNode($settings);
+    print_r('currentUrl: ' . $this->getUrl());
+
+    // Get the page.
+    $this->drupalGet($node->toUrl());
+    print_r('UrlAfter: ' . $this->getUrl());
+    $page = $this->getSession()->getPage();
+    $this->createScreenshot(\Drupal::root() . '/sites/default/files/simpletest/screen.png');
+    $this->assertEquals('', $page->getHTML());
+    $this->assertSession()->statusCodeEquals(200);
+    $this->assertTrue($page->hasLink('Google!'));
+
+    // Test that the page has the external link span.
+    $externalLink = $page->find('css', 'span.ext');
+    $this->assertTrue($externalLink->isVisible(), 'External Link Exists.');
+  }
+
+}
diff --git a/tests/src/FunctionalJavascript/ExtlinkTestBase.php b/tests/src/FunctionalJavascript/ExtlinkTestBase.php
new file mode 100644
index 0000000..ca8f772
--- /dev/null
+++ b/tests/src/FunctionalJavascript/ExtlinkTestBase.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Drupal\Tests\extlink\FunctionalJavascript;
+
+use Drupal\FunctionalJavascriptTests\JavascriptTestBase;
+
+/**
+ * Base class for External Link tests.
+ *
+ * Provides common setup stuff and various helper functions.
+ */
+abstract class ExtlinkTestBase extends JavascriptTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['extlink', 'node', 'filter'];
+
+  /**
+   * User with various administrative permissions.
+   *
+   * @var Drupaluser
+   */
+  protected $adminUser;
+
+  /**
+   * Normal visitor with limited permissions.
+   *
+   * @var Drupaluser
+   */
+  protected $normalUser;
+
+  /**
+   * Drupal path of the (general) External Links admin page.
+   */
+  const EXTLINK_ADMIN_PATH = 'admin/config/user-interface/extlink';
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setUp() {
+    // Enable any module that you will need in your tests.
+    parent::setUp();
+    // Create a normal user.
+    $permissions = [];
+    $this->normalUser = $this->drupalCreateUser($permissions);
+
+    // Create an admin user.
+    $permissions[] = 'administer site configuration';
+    $permissions[] = 'administer permissions';
+    $this->adminUser = $this->drupalCreateUser($permissions);
+    $this->adminUser->roles[] = 'administrator';
+    $this->adminUser->save();
+    
+    // Create page content type that we will use for testing.
+    $this->drupalCreateContentType(['type' => 'page',]);
+  }
+
+}