diff --git a/environments/drupal-8.sh b/environments/drupal-8.sh
index 5a490f3..e62bf58 100644
--- a/environments/drupal-8.sh
+++ b/environments/drupal-8.sh
@@ -24,6 +24,9 @@ export PATH="$DRUPAL_TI_DIST_DIR/usr/bin:$PATH"
 # Display used for running selenium browser.
 export DISPLAY=:99.0
 
+# export SIMPLETEST_DB for KernelTestBase, so it is available for all runners.
+export SIMPLETEST_DB="$DRUPAL_TI_DB_URL"
+
 # Use 'minimal' by default for Drupal 8.
 if [ -z "$DRUPAL_TI_INSTALL_PROFILE" ]
 then
diff --git a/tests/drupal-8/drupal_ti_test/tests/phpunit.xml.dist b/tests/drupal-8/drupal_ti_test/tests/phpunit.xml.dist
index c583c49..d511650 100644
--- a/tests/drupal-8/drupal_ti_test/tests/phpunit.xml.dist
+++ b/tests/drupal-8/drupal_ti_test/tests/phpunit.xml.dist
@@ -3,7 +3,7 @@
 <phpunit colors="true" bootstrap="./vendor/autoload.php">
   <testsuites>
     <testsuite name="DrupalTiTest">
-        <directory>./src/</directory>
+        <directory>./src/Unit/</directory>
     </testsuite>
   </testsuites>
   <!-- Filter for coverage reports. -->
diff --git a/tests/drupal-8/drupal_ti_test/tests/src/Kernel/DrupalTiTestTest.php b/tests/drupal-8/drupal_ti_test/tests/src/Kernel/DrupalTiTestTest.php
new file mode 100644
index 0000000..f3f328b
--- /dev/null
+++ b/tests/drupal-8/drupal_ti_test/tests/src/Kernel/DrupalTiTestTest.php
@@ -0,0 +1,44 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Tests\drupal_ti_test\Kernel\DrupalTiTestTest;
+ */
+
+namespace Drupal\Tests\drupal_ti_test\Kernel;
+
+use Drupal\drupal_ti_test\DrupalTiTest;
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * @coversDefaultClass \Drupal\drupal_ti_test\DrupalTiTest
+ *
+ * @group drupal_ti_test
+ */
+class DrupalTiTestTest extends KernelTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['system', 'user', 'drupal_ti_test'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    // Do something with the database.
+    $this->installSchema('system', 'router');
+  }
+
+  /**
+   * @covers ::bar
+   */
+  public function testKernelTestBase() {
+    $test = new DrupalTiTest();
+    $this->assertEquals('foo', $test->bar());
+  }
+}
diff --git a/tests/drupal-8/drupal_ti_test/tests/src/DrupalTiTestTest.php b/tests/drupal-8/drupal_ti_test/tests/src/Unit/DrupalTiTestTest.php
similarity index 71%
rename from tests/drupal-8/drupal_ti_test/tests/src/DrupalTiTestTest.php
rename to tests/drupal-8/drupal_ti_test/tests/src/Unit/DrupalTiTestTest.php
index 1612cbd..987087e 100644
--- a/tests/drupal-8/drupal_ti_test/tests/src/DrupalTiTestTest.php
+++ b/tests/drupal-8/drupal_ti_test/tests/src/Unit/DrupalTiTestTest.php
@@ -2,15 +2,17 @@
 
 /**
  * @file
- * Contains \Drupal\Tests\drupal_ti_test\DrupalTiTestTest;
+ * Contains \Drupal\Tests\drupal_ti_test\Unit\DrupalTiTestTest;
  */
 
-namespace Drupal\Tests\drupal_ti_test;
+namespace Drupal\Tests\drupal_ti_test\Unit;
 
 use Drupal\drupal_ti_test\DrupalTiTest;
 
 /**
  * @coversDefaultClass \Drupal\drupal_ti_test\DrupalTiTest
+ *
+ * @group drupal_ti_test
  */
 class DrupalTiTestTest extends \PHPUnit_Framework_TestCase {