Issue #3245996: Move basic exclusions and test coverage into Package Manager

package_manager/tests/modules/package_manager_bypass/src/PackageManagerBypassServiceProvider.php

@@ -5,6 +5,7 @@ namespace Drupal\package_manager_bypass;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\DependencyInjection\ServiceProviderBase;
 use Drupal\Core\Site\Settings;
+use Symfony\Component\DependencyInjection\Reference;
 
 /**
  * Defines services to bypass Package Manager's core functionality.
@@ -17,10 +18,24 @@ class PackageManagerBypassServiceProvider extends ServiceProviderBase {
   public function alter(ContainerBuilder $container) {
     parent::alter($container);
 
-    $container->getDefinition('package_manager.beginner')
-      ->setClass(Beginner::class);
-    $container->getDefinition('package_manager.stager')
-      ->setClass(Stager::class);
+    // By default, bypass the Composer Stager library. This can be disabled for
+    // tests that want to use the real library, but only need to disable
+    // validators.
+    if (Settings::get('package_manager_bypass_stager', TRUE)) {
+      $container->getDefinition('package_manager.beginner')
+        ->setClass(Beginner::class);
+      $container->getDefinition('package_manager.stager')
+        ->setClass(Stager::class);
+
+      $container->register('package_manager_bypass.committer')
+        ->setClass(Committer::class)
+        ->setPublic(FALSE)
+        ->setDecoratedService('package_manager.committer')
+        ->setArguments([
+          new Reference('package_manager_bypass.committer.inner'),
+        ])
+        ->setProperty('_serviceId', 'package_manager.committer');
+    }
 
     // Allow functional tests to disable specific validators as necessary.
     // Kernel tests can override the ::register() method and modify the