Adam G-H
--- a/tests/src/Kernel/ReadinessValidation/CronFrequencyValidatorTest.php
+++ b/tests/src/Kernel/ReadinessValidation/CronFrequencyValidatorTest.php
   * {@inheritdoc}
   */
  protected function setUp(): void {
-    // Disable the symlink validator so that the test isn't affected by symlinks
-    // or other unexpected things that might be present in the running code
-    // base.
-    // @todo Make this test use a virtual project in
-    //   https://drupal.org/i/3285145.
-    $this->disableValidators[] = 'automatic_updates.validator.symlink';
-    $this->disableValidators[] = 'package_manager.validator.symlink';
    parent::setUp();
+    $this->createTestProject();
+    // Since we're using a virtual project, and the staging area will be created
+    // in the virtual file system, we don't need to bypass Package Manager.
+    $this->disableModules(['package_manager_bypass']);