diff --git a/core/tests/Drupal/Tests/Core/Asset/LibraryDiscoveryParserTest.php b/core/tests/Drupal/Tests/Core/Asset/LibraryDiscoveryParserTest.php
index 19bfbba..4c9a96f 100644
--- a/core/tests/Drupal/Tests/Core/Asset/LibraryDiscoveryParserTest.php
+++ b/core/tests/Drupal/Tests/Core/Asset/LibraryDiscoveryParserTest.php
@@ -161,7 +161,7 @@ public function testInvalidLibrariesFile() {
    * Tests that an exception is thrown when no CSS/JS/setting is specified.
    *
    * @expectedException \Drupal\Core\Asset\Exception\IncompleteLibraryDefinitionException
-   * @expectedExceptionMessage Incomplete library definition for 'example'
+   * @expectedExceptionMessage Incomplete library definition for extension 'example_module_missing_information'
    *
    * @covers ::buildByExtension
    */
@@ -400,7 +400,7 @@ public function testLibraryWithJavaScript() {
    * Tests that an exception is thrown when license is missing when 3rd party.
    *
    * @expectedException \Drupal\Core\Asset\Exception\LibraryDefinitionMissingLicenseException
-   * @expectedExceptionMessage Missing license information in library definition for 'no-license-info-but-remote': it has a remote, but no license.
+   * @expectedExceptionMessage Missing license information in library definition for extension 'licenses_missing_information': it has a remote, but no license.
    *
    * @covers ::buildByExtension
    */