diff --git a/core/tests/Drupal/Tests/Core/Test/LegacyTest.php b/core/tests/Drupal/Tests/Core/Test/LegacyTest.php
index d4b60d7..cca015c 100644
--- a/core/tests/Drupal/Tests/Core/Test/LegacyTest.php
+++ b/core/tests/Drupal/Tests/Core/Test/LegacyTest.php
@@ -19,4 +19,13 @@ public function testSymfonyPhpUnitBridge() {
     });
   }
 
+  /**
+   * Tests that the Symfony PHPUnit Bridge is working.
+   */
+  public function testSymfonyPhpUnitBridgeHideError() {
+    ErrorAssert::assertDeprecationsAreTriggered('Testing Symfony PHPUnit Bridge', function () {
+      @trigger_error('Testing Symfony PHPUnit Bridge', E_USER_DEPRECATED);
+    });
+  }
+
 }