diff --git a/tests/src/Functional/LibrariesWebTest.php b/tests/src/Functional/LibrariesWebTest.php
index f89eab5956e4e6994d80af4d58979037ec2e58a6..5eb12b4390044b374f80f6207c2b2961d91237c4 100644
--- a/tests/src/Functional/LibrariesWebTest.php
+++ b/tests/src/Functional/LibrariesWebTest.php
@@ -76,101 +76,6 @@ class LibrariesWebTest extends BrowserTestBase {
     $this->assertEquals($loaded['example_dependency']['loaded'], 1, 'Dependency library is also loaded');
   }
 
-  /**
-   * Tests the applying of callbacks.
-   */
-  public function testCallbacks() {
-    $expected = [
-      'name' => 'Example callback',
-      'library path' => \Drupal::service('extension.list.module')->getPath('libraries') . '/tests/example',
-      'version' => '1',
-      'versions' => [
-        '1' => [
-          'variants' => [
-            'example_variant' => [
-              'info callback' => 'not applied',
-              'pre-detect callback' => 'not applied',
-              'post-detect callback' => 'not applied',
-              'pre-load callback' => 'not applied',
-              'post-load callback' => 'not applied',
-            ],
-          ],
-          'info callback' => 'not applied',
-          'pre-detect callback' => 'not applied',
-          'post-detect callback' => 'not applied',
-          'pre-load callback' => 'not applied',
-          'post-load callback' => 'not applied',
-        ],
-      ],
-      'variants' => [
-        'example_variant' => [
-          'info callback' => 'not applied',
-          'pre-detect callback' => 'not applied',
-          'post-detect callback' => 'not applied',
-          'pre-load callback' => 'not applied',
-          'post-load callback' => 'not applied',
-        ],
-      ],
-      'callbacks' => [
-        'info' => ['_libraries_test_info_callback'],
-        'pre-detect' => ['_libraries_test_pre_detect_callback'],
-        'post-detect' => ['_libraries_test_post_detect_callback'],
-        'pre-load' => ['_libraries_test_pre_load_callback'],
-        'post-load' => ['_libraries_test_post_load_callback'],
-      ],
-      'info callback' => 'not applied',
-      'pre-detect callback' => 'not applied',
-      'post-detect callback' => 'not applied',
-      'pre-load callback' => 'not applied',
-      'post-load callback' => 'not applied',
-      'module' => 'libraries_test',
-    ];
-
-    // Test a callback in the 'pre-detect' and 'post-detect' phases.
-    // Successfully detected libraries should only contain version information
-    // for the detected version and thus, be marked as installed.
-    unset($expected['versions']);
-    $expected['installed'] = TRUE;
-    // Additionally, version-specific properties of the detected version are
-    // supposed to override the corresponding top-level properties.
-    $expected['info callback'] = 'applied (version 1)';
-    $expected['variants']['example_variant']['installed'] = TRUE;
-    $expected['variants']['example_variant']['info callback'] = 'applied (version 1, variant example_variant)';
-    // Version-overloading takes place after the 'pre-detect' callbacks have
-    // been applied.
-    $expected['pre-detect callback'] = 'applied (version 1)';
-    $expected['post-detect callback'] = 'applied (top-level)';
-    $expected['variants']['example_variant']['pre-detect callback'] = 'applied (version 1, variant example_variant)';
-    $expected['variants']['example_variant']['post-detect callback'] = 'applied (variant example_variant)';
-    $library = \Drupal::service('libraries.manager')->getLibrary('example_callback');
-    dump('Expected:<pre>' . var_export($expected, TRUE) . '</pre>');
-    dump('Actual:<pre>' . var_export($library, TRUE) . '</pre>');
-    $this->assertEquals($library, $expected, 'Detect callback was applied correctly.');
-
-    // Test a callback in the 'pre-load' and 'post-load' phases.
-    // Successfully loaded libraries should only contain information about the
-    // already loaded variant.
-    unset($expected['variants']);
-    $expected['loaded'] = 0;
-    $expected['pre-load callback'] = 'applied (top-level)';
-    $expected['post-load callback'] = 'applied (top-level)';
-    $library = \Drupal::service('libraries.manager')->load('example_callback');
-    dump('Expected:<pre>' . var_export($expected, TRUE) . '</pre>');
-    dump('Actual:<pre>' . var_export($library, TRUE) . '</pre>');
-    $this->assertEquals($library, $expected, 'Pre-load and post-load callbacks were applied correctly.');
-    // This is not recommended usually and is only used for testing purposes.
-    drupal_static_reset('libraries_load');
-    // Successfully loaded library variants are supposed to contain the specific
-    // variant information only.
-    $expected['info callback'] = 'applied (version 1, variant example_variant)';
-    $expected['pre-detect callback'] = 'applied (version 1, variant example_variant)';
-    $expected['post-detect callback'] = 'applied (variant example_variant)';
-    $library = \Drupal::service('libraries.manager')->load('example_callback', 'example_variant');
-    dump('Expected:<pre>' . var_export($expected, TRUE) . '</pre>');
-    dump('Actual:<pre>' . var_export($library, TRUE) . '</pre>');
-    $this->assertEquals($library, $expected, 'Pre-detect and post-detect callbacks were applied correctly to a variant.');
-  }
-
   /**
    * Tests that library files are properly added to the page output.
    *