diff --git a/tests/modules/file_link_test/src/Controller/RedirectController.php b/tests/modules/file_link_test/src/Controller/RedirectController.php
index b07e3fd..353be25 100644
--- a/tests/modules/file_link_test/src/Controller/RedirectController.php
+++ b/tests/modules/file_link_test/src/Controller/RedirectController.php
@@ -28,7 +28,7 @@ class RedirectController extends ControllerBase {
    *   An absolute URL.
    */
   protected static function getFullUrl($path) {
-    return Url::fromUri('base:/' . drupal_get_path('module', 'file_link_test') . $path, ['absolute' => TRUE])->toString();
+    return Url::fromUri('base:/' . \Drupal::service('extension.list.module')->getPath('file_link_test') . $path, ['absolute' => TRUE])->toString();
   }
 
 }
diff --git a/tests/src/Kernel/FileLinkDeferredTest.php b/tests/src/Kernel/FileLinkDeferredTest.php
index 26bb9a8..9e9b293 100644
--- a/tests/src/Kernel/FileLinkDeferredTest.php
+++ b/tests/src/Kernel/FileLinkDeferredTest.php
@@ -33,7 +33,7 @@ class FileLinkDeferredTest extends KernelTestBase {
   /**
    * {@inheritdoc}
    */
-  protected function setUp() {
+  protected function setUp(): void {
     parent::setUp();
 
     $this->installConfig(['file_link_test']);
diff --git a/tests/src/Kernel/FileLinkMultiValueTest.php b/tests/src/Kernel/FileLinkMultiValueTest.php
index 3635406..38c3c14 100644
--- a/tests/src/Kernel/FileLinkMultiValueTest.php
+++ b/tests/src/Kernel/FileLinkMultiValueTest.php
@@ -32,7 +32,7 @@ class FileLinkMultiValueTest extends KernelTestBase {
   /**
    * {@inheritdoc}
    */
-  protected function setUp() {
+  protected function setUp(): void {
     parent::setUp();
 
     $this->installConfig(['file_link_test']);
diff --git a/tests/src/Kernel/FileLinkValidationTest.php b/tests/src/Kernel/FileLinkValidationTest.php
index 203f065..1d3f810 100644
--- a/tests/src/Kernel/FileLinkValidationTest.php
+++ b/tests/src/Kernel/FileLinkValidationTest.php
@@ -38,7 +38,7 @@ class FileLinkValidationTest extends KernelTestBase {
   /**
    * {@inheritdoc}
    */
-  protected function setUp() {
+  protected function setUp(): void {
     parent::setUp();
 
     $this->installConfig(['file_link_test']);
@@ -95,7 +95,7 @@ class FileLinkValidationTest extends KernelTestBase {
    *   An absolute URL.
    */
   protected static function getFullUrl($path) {
-    return Url::fromUri('base:/' . drupal_get_path('module', 'file_link_test') . $path, ['absolute' => TRUE, 'query' => ['foo' => 'bar']])->toString();
+    return Url::fromUri('base:/' . \Drupal::service('extension.list.module')->getPath('file_link_test') . $path, ['absolute' => TRUE, 'query' => ['foo' => 'bar']])->toString();
   }
 
   /**
diff --git a/tests/src/Kernel/FileLinkWidgetTest.php b/tests/src/Kernel/FileLinkWidgetTest.php
index 0b28e7a..edcdf43 100644
--- a/tests/src/Kernel/FileLinkWidgetTest.php
+++ b/tests/src/Kernel/FileLinkWidgetTest.php
@@ -28,7 +28,7 @@ class FileLinkWidgetTest extends KernelTestBase {
   /**
    * {@inheritdoc}
    */
-  protected function setUp() {
+  protected function setUp(): void {
     parent::setUp();
 
     $this->installEntitySchema('entity_test');