symfony
diff --git a/‎src/Symfony/Component/Notifier/Bridge/MessageMedia/MessageMediaTransport.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Notifier/Bridge/MessageMedia/MessageMediaTransport.php
+9-2Lines changed: 9 additions & 2 deletions b/‎src/Symfony/Component/Notifier/Bridge/MessageMedia/MessageMediaTransport.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Notifier/Bridge/MessageMedia/MessageMediaTransport.php
+9-2Lines changed: 9 additions & 2 deletions
diff --git a/‎src/Symfony/Component/Notifier/Bridge/MessageMedia/Tests/MessageMediaTransportTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Notifier/Bridge/MessageMedia/Tests/MessageMediaTransportTest.php
+34Lines changed: 34 additions & 0 deletions b/‎src/Symfony/Component/Notifier/Bridge/MessageMedia/Tests/MessageMediaTransportTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Notifier/Bridge/MessageMedia/Tests/MessageMediaTransportTest.php
+34Lines changed: 34 additions & 0 deletions
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\DecodingExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -86,8 +87,14 @@ protected function doSend(MessageInterface $message): SentMessage
             return $sentMessage;
         }
 
-        $error = $response->toArray(false);
+        try {
+            $error = $response->toArray(false);
 
-        throw new TransportException(sprintf('Unable to send the SMS: "%s".', $error['details'][0] ?? $error['message']), $response);
+            $errorMessage = $error['details'][0] ?? ($error['message'] ?? 'Unknown reason');
+        } catch (DecodingExceptionInterface $e) {
+            $errorMessage = 'Unknown reason';
+        }
+
+        throw new TransportException(sprintf('Unable to send the SMS: "%s".', $errorMessage), $response);
     }
 }
@@ -11,13 +11,17 @@
 
 namespace Symfony\Component\Notifier\Bridge\MessageMedia\Tests;
 
+use Symfony\Component\HttpClient\MockHttpClient;
 use Symfony\Component\Notifier\Bridge\MessageMedia\MessageMediaTransport;
+use Symfony\Component\Notifier\Exception\TransportException;
+use Symfony\Component\Notifier\Exception\TransportExceptionInterface;
 use Symfony\Component\Notifier\Message\ChatMessage;
 use Symfony\Component\Notifier\Message\MessageInterface;
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Test\TransportTestCase;
 use Symfony\Component\Notifier\Transport\TransportInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
+use Symfony\Contracts\HttpClient\ResponseInterface;
 
 final class MessageMediaTransportTest extends TransportTestCase
 {
@@ -45,4 +49,34 @@ public function unsupportedMessagesProvider(): iterable
         yield [new ChatMessage('Hello!')];
         yield [$this->createMock(MessageInterface::class)];
     }
+
+    /**
+     * @dataProvider testExceptionIsThrownWhenHttpSendFailedProvider
+     *
+     * @throws TransportExceptionInterface
+     */
+    public function testExceptionIsThrownWhenHttpSendFailed(int $statusCode, string $content, string $expectedExceptionMessage)
+    {
+        $response = $this->createMock(ResponseInterface::class);
+        $response->method('getStatusCode')
+            ->willReturn($statusCode);
+        $response->method('getContent')
+            ->willReturn($content);
+
+        $client = new MockHttpClient($response);
+
+        $transport = new MessageMediaTransport('apiKey', 'apiSecret', null, $client);
+        $this->expectException(TransportException::class);
+        $this->expectExceptionMessage($expectedExceptionMessage);
+
+        $transport->send(new SmsMessage('+61491570156', 'Hello!'));
+    }
+
+    public function testExceptionIsThrownWhenHttpSendFailedProvider(): iterable
+    {
+        yield [503, '', 'Unable to send the SMS: "Unknown reason".'];
+        yield [500, '{"details": ["Something went wrong."]}', 'Unable to send the SMS: "Something went wrong.".'];
+        yield [403, '{"message": "Forbidden."}', 'Unable to send the SMS: "Forbidden.'];
+        yield [401, '{"Unauthenticated"}', 'Unable to send the SMS: "Unknown reason".'];
+    }
 }