Fix incorrect PHPDoc for Response in TestResponse

src/Illuminate/Testing/TestResponse.php

@@ -28,6 +28,8 @@
 use Symfony\Component\HttpFoundation\StreamedResponse;
 
 /**
+ * @template TResponse of \Symfony\Component\HttpFoundation\Response
+ *
  * @mixin \Illuminate\Http\Response
  */
 class TestResponse implements ArrayAccess
@@ -46,7 +48,7 @@ class TestResponse implements ArrayAccess
     /**
      * The response to delegate to.
      *
-     * @var \Illuminate\Http\Response
+     * @var TResponse
      */
     public $baseResponse;
 
@@ -67,7 +69,7 @@ class TestResponse implements ArrayAccess
     /**
      * Create a new test response instance.
      *
-     * @param  \Illuminate\Http\Response  $response
+     * @param  TResponse  $response
      * @param  \Illuminate\Http\Request|null  $request
      * @return void
      */
@@ -81,9 +83,11 @@ public function __construct($response, $request = null)
     /**
      * Create a new TestResponse from another response.
      *
-     * @param  \Illuminate\Http\Response  $response
+     * @template R of TResponse
+     *
+     * @param  R  $response
      * @param  \Illuminate\Http\Request|null  $request
-     * @return static
+     * @return static<R>
      */
     public static function fromBaseResponse($response, $request = null)
     {

types/Testing/TestResponse.php

@@ -0,0 +1,21 @@
+<?php
+
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Testing\TestResponse;
+use Symfony\Component\HttpFoundation\BinaryFileResponse;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+use function PHPStan\Testing\assertType;
+
+$response = TestResponse::fromBaseResponse(response()->redirectTo(''));
+assertType(RedirectResponse::class, $response->baseResponse);
+
+$response = TestResponse::fromBaseResponse(response()->download(''));
+assertType(BinaryFileResponse::class, $response->baseResponse);
+
+$response = TestResponse::fromBaseResponse(response()->json());
+assertType(JsonResponse::class, $response->baseResponse);
+
+$response = TestResponse::fromBaseResponse(response()->streamDownload(fn () => 1));
+assertType(StreamedResponse::class, $response->baseResponse);