diff --git a/core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityAdapterTest.php b/core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityAdapterTest.php
index eaa01e7936..4d24e9511a 100644
--- a/core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityAdapterTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityAdapterTest.php
@@ -116,8 +116,14 @@ public function testGetProperty() {
    */
   public function testSetProperty() {
     $adapter = ConfigEntityAdapter::createFromEntity($this->entity);
+    // Get the value via typed data to ensure that the typed representation is
+    // updated correctly when the value is set.
+    $this->assertEquals(1, $adapter->get('weight')->getValue());
+
     $adapter->set('weight', 2);
     $this->assertEquals(2, $this->entity->weight);
+    // Ensure the typed data is updated via the set too.
+    $this->assertEquals(2, $adapter->get('weight')->getValue());
   }
 
   /**