diff --git a/src/Illuminate/Foundation/Testing/TestCase.php b/src/Illuminate/Foundation/Testing/TestCase.php
index b546ad63591e..a782aeb79f9a 100644
--- a/src/Illuminate/Foundation/Testing/TestCase.php
+++ b/src/Illuminate/Foundation/Testing/TestCase.php
@@ -6,21 +6,16 @@
 use Illuminate\Console\Application as Artisan;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Foundation\Bootstrap\HandleExceptions;
-use Illuminate\Http\RedirectResponse;
 use Illuminate\Queue\Queue;
-use Illuminate\Support\Arr;
 use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\Facade;
 use Illuminate\Support\Facades\ParallelTesting;
 use Illuminate\Support\Str;
-use Illuminate\Testing\AssertableJsonString;
 use Illuminate\View\Component;
 use Mockery;
 use Mockery\Exception\InvalidCountException;
-use PHPUnit\Framework\ExpectationFailedException;
 use PHPUnit\Framework\TestCase as BaseTestCase;
 use PHPUnit\Util\Annotation\Registry;
-use ReflectionProperty;
 use Throwable;
 
 abstract class TestCase extends BaseTestCase
@@ -301,111 +296,10 @@ protected function callBeforeApplicationDestroyedCallbacks()
      */
     protected function onNotSuccessfulTest(Throwable $exception): void
     {
-        if (! $exception instanceof ExpectationFailedException || is_null(static::$latestResponse)) {
-            parent::onNotSuccessfulTest($exception);
-        }
-
-        if ($lastException = static::$latestResponse->exceptions->last()) {
-            parent::onNotSuccessfulTest($this->appendExceptionToException($lastException, $exception));
-
-            return;
-        }
-
-        if (static::$latestResponse->baseResponse instanceof RedirectResponse) {
-            $session = static::$latestResponse->baseResponse->getSession();
-
-            if (! is_null($session) && $session->has('errors')) {
-                parent::onNotSuccessfulTest($this->appendErrorsToException($session->get('errors')->all(), $exception));
-
-                return;
-            }
-        }
-
-        if (static::$latestResponse->baseResponse->headers->get('Content-Type') === 'application/json') {
-            $testJson = new AssertableJsonString(static::$latestResponse->getContent());
-
-            if (isset($testJson['errors'])) {
-                parent::onNotSuccessfulTest($this->appendErrorsToException($testJson->json(), $exception, true));
-
-                return;
-            }
-        }
-
-        parent::onNotSuccessfulTest($exception);
-    }
-
-    /**
-     * Append an exception to the message of another exception.
-     *
-     * @param  \Throwable  $exceptionToAppend
-     * @param  \Throwable  $exception
-     * @return \Throwable
-     */
-    protected function appendExceptionToException($exceptionToAppend, $exception)
-    {
-        $exceptionMessage = $exceptionToAppend->getMessage();
-
-        $exceptionToAppend = (string) $exceptionToAppend;
-
-        $message = <<<"EOF"
-            The following exception occurred during the last request:
-
-            $exceptionToAppend
-
-            ----------------------------------------------------------------------------------
-
-            $exceptionMessage
-            EOF;
-
-        return $this->appendMessageToException($message, $exception);
-    }
-
-    /**
-     * Append errors to an exception message.
-     *
-     * @param  array  $errors
-     * @param  \Throwable  $exception
-     * @param  bool  $json
-     * @return \Throwable
-     */
-    protected function appendErrorsToException($errors, $exception, $json = false)
-    {
-        $errors = $json
-            ? json_encode($errors, JSON_PRETTY_PRINT)
-            : implode(PHP_EOL, Arr::flatten($errors));
-
-        // JSON error messages may already contain the errors, so we shouldn't duplicate them...
-        if (str_contains($exception->getMessage(), $errors)) {
-            return $exception;
-        }
-
-        $message = <<<"EOF"
-            The following errors occurred during the last request:
-
-            $errors
-            EOF;
-
-        return $this->appendMessageToException($message, $exception);
-    }
-
-    /**
-     * Append a message to an exception.
-     *
-     * @param  string  $message
-     * @param  \Throwable  $exception
-     * @return \Throwable
-     */
-    protected function appendMessageToException($message, $exception)
-    {
-        $property = new ReflectionProperty($exception, 'message');
-
-        $property->setAccessible(true);
-
-        $property->setValue(
-            $exception,
-            $exception->getMessage().PHP_EOL.PHP_EOL.$message.PHP_EOL
+        parent::onNotSuccessfulTest(
+            is_null(static::$latestResponse)
+                ? $exception
+                : static::$latestResponse->transformNotSuccessfulException($exception)
         );
-
-        return $exception;
     }
 }
diff --git a/src/Illuminate/Testing/TestResponse.php b/src/Illuminate/Testing/TestResponse.php
index a9fb16968712..e562797f4298 100644
--- a/src/Illuminate/Testing/TestResponse.php
+++ b/src/Illuminate/Testing/TestResponse.php
@@ -9,6 +9,7 @@
 use Illuminate\Cookie\CookieValuePrefix;
 use Illuminate\Database\Eloquent\Collection as EloquentCollection;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Arr;
 use Illuminate\Support\Carbon;
@@ -21,6 +22,8 @@
 use Illuminate\Testing\Constraints\SeeInOrder;
 use Illuminate\Testing\Fluent\AssertableJson;
 use LogicException;
+use PHPUnit\Framework\ExpectationFailedException;
+use ReflectionProperty;
 use Symfony\Component\HttpFoundation\Cookie;
 use Symfony\Component\HttpFoundation\StreamedResponse;
 
@@ -1549,6 +1552,116 @@ public function withExceptions(Collection $exceptions)
         return $this;
     }
 
+    /**
+     * This method is called when test method did not execute successfully.
+     *
+     * @param  \Throwable  $exception
+     * @return \Throwable
+     */
+    public function transformNotSuccessfulException($exception)
+    {
+        if (! $exception instanceof ExpectationFailedException) {
+            return $exception;
+        }
+
+        if ($lastException = $this->exceptions->last()) {
+            return $this->appendExceptionToException($lastException, $exception);
+        }
+
+        if ($this->baseResponse instanceof RedirectResponse) {
+            $session = $this->baseResponse->getSession();
+
+            if (! is_null($session) && $session->has('errors')) {
+                return $this->appendErrorsToException($session->get('errors')->all(), $exception);
+            }
+        }
+
+        if ($this->baseResponse->headers->get('Content-Type') === 'application/json') {
+            $testJson = new AssertableJsonString($this->getContent());
+
+            if (isset($testJson['errors'])) {
+                return $this->appendErrorsToException($testJson->json(), $exception, true);
+            }
+        }
+
+        return $exception;
+    }
+
+    /**
+     * Append an exception to the message of another exception.
+     *
+     * @param  \Throwable  $exceptionToAppend
+     * @param  \Throwable  $exception
+     * @return \Throwable
+     */
+    protected function appendExceptionToException($exceptionToAppend, $exception)
+    {
+        $exceptionMessage = $exceptionToAppend->getMessage();
+
+        $exceptionToAppend = (string) $exceptionToAppend;
+
+        $message = <<<"EOF"
+            The following exception occurred during the last request:
+
+            $exceptionToAppend
+
+            ----------------------------------------------------------------------------------
+
+            $exceptionMessage
+            EOF;
+
+        return $this->appendMessageToException($message, $exception);
+    }
+
+    /**
+     * Append errors to an exception message.
+     *
+     * @param  array  $errors
+     * @param  \Throwable  $exception
+     * @param  bool  $json
+     * @return \Throwable
+     */
+    protected function appendErrorsToException($errors, $exception, $json = false)
+    {
+        $errors = $json
+            ? json_encode($errors, JSON_PRETTY_PRINT)
+            : implode(PHP_EOL, Arr::flatten($errors));
+
+        // JSON error messages may already contain the errors, so we shouldn't duplicate them...
+        if (str_contains($exception->getMessage(), $errors)) {
+            return $exception;
+        }
+
+        $message = <<<"EOF"
+            The following errors occurred during the last request:
+
+            $errors
+            EOF;
+
+        return $this->appendMessageToException($message, $exception);
+    }
+
+    /**
+     * Append a message to an exception.
+     *
+     * @param  string  $message
+     * @param  \Throwable  $exception
+     * @return \Throwable
+     */
+    protected function appendMessageToException($message, $exception)
+    {
+        $property = new ReflectionProperty($exception, 'message');
+
+        $property->setAccessible(true);
+
+        $property->setValue(
+            $exception,
+            $exception->getMessage().PHP_EOL.PHP_EOL.$message.PHP_EOL
+        );
+
+        return $exception;
+    }
+
     /**
      * Dynamically access base response parameters.
      *