Bugproof: cutted filename

tests/MessageTest.php

@@ -1055,4 +1055,19 @@ public function testGbkCharsetDecoding()
 
         static::assertSame('Hi', \trim($message->getDecodedContent()));
     }
+
+    public function testCuttedFilename()
+    {
+        $this->mailbox->addMessage($this->getFixture('cutted_filename'));
+
+        $message     = $this->mailbox->getMessage(1);
+        $attachments = $message->getAttachments();
+
+        static::assertCount(1, $attachments);
+
+        /** @var Message\AttachmentInterface $attachment */
+        $attachment = \current($attachments);
+
+        static::assertSame('Zählerstanderfassung_2019___Test1.csv', $attachment->getFilename());
+    }
 }

tests/fixtures/cutted_filename.eml

@@ -0,0 +1,31 @@
+Return-Path: <[email protected]>
+Delivered-To: [email protected]
+To: <[email protected]>
+From: Nodus IT | Bastian Schur <[email protected]>
+Subject: Test #1
+Message-ID: <[email protected]>
+Date: Thu, 14 Nov 2019 11:23:39 +0100
+Content-Type: multipart/mixed;
+    boundary="------------A14EB21F2391734320F0CC3C"
+Content-Language: en-US
+MIME-Version: 1.0
+
+--------------A14EB21F2391734320F0CC3C
+Content-Type: text/plain; charset="utf-8"; format=flowed
+Content-Transfer-Encoding: quoted-printable
+
+Hi
+
+--------------A14EB21F2391734320F0CC3C
+Content-Type: text/csv; charset="UTF-8";
+    name="=?UTF-8?Q?Z=c3=a4hlerstanderfassung=5f2019=5f=5f=5fTest1=2ecsv?="
+Content-Transfer-Encoding: quoted-printable
+Content-Disposition: attachment;
+    filename*0*="UTF-8''%5A%C3%A4%68%6C%65%72%73%74%61%6E%64%65%72%66%61%73%73";
+    filename*1*="%75%6E%67%5F%32%30%31%39%5F%5F%5F%54%65%73%74%31%2E%63%73%76"
+
+Nummer,Standort,Hersteller,Ger=C3=A4t,Seriennummer,S/W,Farbe,Scans,Datum
+5761,"Mustra=C3=9Fe 5, 12345 Musterhausen",Brother,ABC,123456789,20000,3000=
+0,12345,10.11.19
+
+--------------A14EB21F2391734320F0CC3C--