tests/src/Functional/ResourceTestBase.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/src/Functional/ResourceTestBase.php b/tests/src/Functional/ResourceTestBase.php
index f7a1331..bfe57e9 100644
--- a/tests/src/Functional/ResourceTestBase.php
+++ b/tests/src/Functional/ResourceTestBase.php
@@ -181,8 +181,11 @@ abstract class ResourceTestBase extends BrowserTestBase {
     $user_role->save();
     assert([] === $user_role->getPermissions(), 'The authenticated user role has no permissions at all.');
 
-    // Create an account, which tests will use.
+    // Create an account, which tests will use. Also ensure the @current_user
+    // service this account, to ensure certain access check logic in tests works
+    // as expected.
     $this->account = $this->createUser();
+    $this->container->get('current_user')->setAccount($this->account);
 
     // Create an entity.
     $this->entityStorage = $this->container->get('entity_type.manager')->getStorage(static::$entityTypeId);