Add 'actingAsClient' static method to 'Passport' class

src/Passport.php

@@ -7,6 +7,7 @@
 use Carbon\Carbon;
 use DateTimeInterface;
 use Illuminate\Support\Facades\Route;
+use League\OAuth2\Server\ResourceServer;
 
 class Passport
 {
@@ -405,6 +406,29 @@ public static function actingAs($user, $scopes = [], $guard = 'api')
         return $user;
     }
 
+    /**
+     * Set the current client for the application with the given scopes.
+     *
+     * @param  \Laravel\Passport\Client  $client
+     * @param  array  $scopes
+     * @return \Laravel\Passport\Client
+     */
+    public static function actingAsClient($client, $scopes = [])
+    {
+        $mock = Mockery::mock(ResourceServer::class);
+
+        $mock->shouldReceive('validateAuthenticatedRequest')
+            ->andReturnUsing(function ($request) use ($client, $scopes) {
+                return $request
+                    ->withAttribute('oauth_client_id', $client->id)
+                    ->withAttribute('oauth_scopes', $scopes);
+            });
+
+        app()->instance(ResourceServer::class, $mock);
+
+        return $client;
+    }
+
     /**
      * Set the storage location of the encryption keys.
      *