Issue #3265874: Do not allow apply if active and staged composer locks are identical.

tests/src/Kernel/ReadinessValidation/StagedDatabaseUpdateValidatorTest.php

@@ -30,10 +30,19 @@ class StagedDatabaseUpdateValidatorTest extends AutomaticUpdatesKernelTestBase {
    * {@inheritdoc}
    */
   protected function setUp(): void {
+    $this->disableValidators[] = 'automatic_updates.update_version_validator';
+    $real_drupal_root = $this->getDrupalRoot();
     parent::setUp();
 
-    TestStage::$stagingRoot = $this->vfsRoot->url();
+    //TestStage::$stagingRoot = $this->vfsRoot->url();
 
+    $this->createTestProject();
+    $path_locator = $this->container->get('package_manager.path_locator');
+    $active_directory = $path_locator->getProjectRoot();
+    @copy("$real_drupal_root/composer.json", "$active_directory/composer.json");
+    @copy("$real_drupal_root/composer.lock", "$active_directory/composer.lock");
+    mkdir("$active_directory/vendor/composer", 0777, TRUE);
+    @copy("$real_drupal_root/vendor/composer/installed.json", "$active_directory/vendor/composer/installed.json");
     /** @var \Drupal\Tests\automatic_updates\Kernel\TestCronUpdater $updater */
     $updater = $this->container->get('automatic_updates.cron_updater');
     $updater->begin(['drupal' => '9.8.2']);
@@ -42,13 +51,14 @@ class StagedDatabaseUpdateValidatorTest extends AutomaticUpdatesKernelTestBase {
     $stage_dir = $updater->getStageDirectory();
     mkdir($stage_dir);
 
+
     // To satisfy StagedProjectsValidator, copy the active Composer files into
     // the staging area.
-    $active_dir = $this->getDrupalRoot();
-    @copy("$active_dir/composer.json", "$stage_dir/composer.json");
-    @copy("$active_dir/composer.lock", "$stage_dir/composer.lock");
+
+    @copy("$real_drupal_root/composer.json", "$stage_dir/composer.json");
+    @copy("$real_drupal_root/composer.lock", "$stage_dir/composer.lock");
     mkdir("$stage_dir/vendor/composer", 0777, TRUE);
-    @copy("$active_dir/vendor/composer/installed.json", "$stage_dir/vendor/composer/installed.json");
+    @copy("$real_drupal_root/vendor/composer/installed.json", "$stage_dir/vendor/composer/installed.json");
 
     // Copy the .install and .post_update.php files from every installed module
     // into the staging directory.
@@ -56,10 +66,12 @@ class StagedDatabaseUpdateValidatorTest extends AutomaticUpdatesKernelTestBase {
     foreach ($module_list as $name => $module) {
       $path = $module->getPath();
       @mkdir("$stage_dir/$path", 0777, TRUE);
+      @mkdir("$active_directory/$path", 0777, TRUE);
 
       foreach (static::SUFFIXES as $suffix) {
         // If the source file doesn't exist, silence the warning it raises.
-        @copy("$active_dir/$path/$name.$suffix", "$stage_dir/$path/$name.$suffix");
+        @copy("$real_drupal_root/$path/$name.$suffix", "$stage_dir/$path/$name.$suffix");
+        @copy("$real_drupal_root/$path/$name.$suffix", "$active_directory/$path/$name.$suffix");
       }
     }
   }