diff --git a/test/TNEFAttachmentTest.php b/test/TNEFAttachmentTest.php
index b79230c..fe2397b 100644
--- a/test/TNEFAttachmentTest.php
+++ b/test/TNEFAttachmentTest.php
@@ -26,7 +26,7 @@ public function testDecode3()
    /**
     * @dataProvider tnefFileProvider
     */
-   public function testDecodeAuto($tnefFile, $listFile) {
+   public function testDecodeAuto($tnefFile, $listFile, $nestedListFile) {
       $buffer = file_get_contents($tnefFile);
       $attachment = new TNEFAttachment(false, true);
 
@@ -35,21 +35,19 @@ public function testDecodeAuto($tnefFile, $listFile) {
       }
       $attachment->decodeTnef($buffer);
 
-      $list = file($listFile, FILE_IGNORE_NEW_LINES + FILE_SKIP_EMPTY_LINES);
-      $this->assertEquals(count($list), count($attachment->files));
-      $decodedFiles = array_map(function(TNEFFileBase$file) {return $file->getName();}, $attachment->files);
+      $list = $this->readList($listFile);
+      $decodedFiles = array_map(function($file) {return [$file->getName(), md5($file->getContent())];}, $attachment->getFiles());
 
-      $withoutRtf = array_filter($list, array($this, "endsWithRtf"));
-      $withoutRtfdecoded = array_filter($decodedFiles, array($this, "endsWithRtf"));
+      $this->assertEquals($list, $decodedFiles);
 
-      $rtfs = array_diff($withoutRtf, $list);
-      $rtfsDecoded = array_diff($withoutRtfdecoded, $decodedFiles);
+      if ($nestedListFile === null) {
+         return;
+      }
 
-      $this->assertEquals(count($rtfs), count($rtfsDecoded));
+      $list = $this->readList($nestedListFile);
+      $decodedFiles = array_map(function($file) {return [$file->getName(), md5($file->getContent())];}, $attachment->getFilesNested());
 
-      sort($withoutRtfdecoded);
-      sort($withoutRtf);
-      $this->assertEquals($withoutRtf, $withoutRtfdecoded);
+      $this->assertEquals($list, $decodedFiles);
    }
 
    public static function tnefFileProvider() {
@@ -58,22 +56,27 @@ public static function tnefFileProvider() {
       foreach ($tnefFiles as $tnefFile) {
          $pathinfo = pathinfo($tnefFile);
          $listFile = $pathinfo['dirname'] . '/' . $pathinfo['filename'] . '.list';
+         $nestedListFile = $pathinfo['dirname'] . '/' . $pathinfo['filename'] . '.nested.list';
 
          $result[] = [
             $tnefFile,
             file_exists($listFile) ? $listFile : null,
+            file_exists($nestedListFile) ? $nestedListFile : null,
          ];
       }
 
       return $result;
    }
 
-   private function endsWithRtf($value) {
-      $arr = explode('.', $value);
-      if (count($arr) < 2) {
-         return false;
+   private function readList(string $filename): array
+   {
+      $arr = [];
+      $handle = fopen($filename, 'r');
+      while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
+         $arr[] = $data;
       }
+      fclose($handle);
 
-      return $arr[1] !== 'rtf';
+      return $arr;
    }
 }
diff --git a/test/testfiles/MAPI_ATTACH_DATA_OBJ.list b/test/testfiles/MAPI_ATTACH_DATA_OBJ.list
index 6aa060d..ac3702b 100644
--- a/test/testfiles/MAPI_ATTACH_DATA_OBJ.list
+++ b/test/testfiles/MAPI_ATTACH_DATA_OBJ.list
@@ -1,4 +1,4 @@
-VIA_Nytt_1402.doc
-VIA_Nytt_1402.pdf
-VIA_Nytt_14021.htm
-MAPI_ATTACH_DATA_OBJ-body.rtf
\ No newline at end of file
+EmbeddedRTF.rtf,45c10a4a43d0e5249146d44bc3aea596
+VIA_Nytt_1402.doc,d41d8cd98f00b204e9800998ecf8427e
+VIA_Nytt_1402.pdf,d41d8cd98f00b204e9800998ecf8427e
+VIA_Nytt_14021.htm,d41d8cd98f00b204e9800998ecf8427e
diff --git a/test/testfiles/MAPI_ATTACH_DATA_OBJ.nested.list b/test/testfiles/MAPI_ATTACH_DATA_OBJ.nested.list
new file mode 100644
index 0000000..95a9f28
--- /dev/null
+++ b/test/testfiles/MAPI_ATTACH_DATA_OBJ.nested.list
@@ -0,0 +1,12 @@
+EmbeddedRTF.rtf,45c10a4a43d0e5249146d44bc3aea596
+VIA_Nytt_1402.doc,d41d8cd98f00b204e9800998ecf8427e
+VIA_Nytt_1402.pdf,d41d8cd98f00b204e9800998ecf8427e
+VIA_Nytt_14021.htm,d41d8cd98f00b204e9800998ecf8427e
+EmbeddedRTF.rtf,45c10a4a43d0e5249146d44bc3aea596
+VIA_Nytt_1402.doc,d41d8cd98f00b204e9800998ecf8427e
+VIA_Nytt_1402.pdf,d41d8cd98f00b204e9800998ecf8427e
+VIA_Nytt_14021.htm,d41d8cd98f00b204e9800998ecf8427e
+EmbeddedRTF.rtf,45c10a4a43d0e5249146d44bc3aea596
+VIA_Nytt_1402.doc,d41d8cd98f00b204e9800998ecf8427e
+VIA_Nytt_1402.pdf,d41d8cd98f00b204e9800998ecf8427e
+VIA_Nytt_14021.htm,d41d8cd98f00b204e9800998ecf8427e
\ No newline at end of file
diff --git a/test/testfiles/MAPI_OBJECT.list b/test/testfiles/MAPI_OBJECT.list
index 2d889d9..6628ed2 100644
--- a/test/testfiles/MAPI_OBJECT.list
+++ b/test/testfiles/MAPI_OBJECT.list
@@ -1,2 +1,2 @@
-Untitled_Attachment
-MAPI_OBJECT-body.rtf
\ No newline at end of file
+EmbeddedRTF.rtf,02c44ac31695230a1014fb4c5cbb3230
+Untitled_Attachment,d41d8cd98f00b204e9800998ecf8427e
diff --git a/test/testfiles/data-before-name.list b/test/testfiles/data-before-name.list
index b0751ab..12d8f82 100644
--- a/test/testfiles/data-before-name.list
+++ b/test/testfiles/data-before-name.list
@@ -1,4 +1,4 @@
-AUTOEXEC.BAT
-CONFIG.SYS
-boot.ini
-data-before-name-body.rtf
\ No newline at end of file
+EmbeddedRTF.rtf,1ea92c02882f8f0cb655d062ee90006a
+AUTOEXEC.BAT,d41d8cd98f00b204e9800998ecf8427e
+CONFIG.SYS,d41d8cd98f00b204e9800998ecf8427e
+boot.ini,9abbbabd47c8544e7909b4c38ba9c009
diff --git a/test/testfiles/long-filename.list b/test/testfiles/long-filename.list
index ad32e2e..0bf3d62 100644
--- a/test/testfiles/long-filename.list
+++ b/test/testfiles/long-filename.list
@@ -1,2 +1,2 @@
-long-filename-body.rtf
-allproductsmar2000.dat
\ No newline at end of file
+EmbeddedRTF.rtf,d1600f54f8788b352989cf898bc90406
+allproductsmar2000.dat,49a000a7ae2bb8e81a7227ad3b813e0a
\ No newline at end of file
diff --git a/test/testfiles/missing-filenames.list b/test/testfiles/missing-filenames.list
index b2bcd97..43c9861 100644
--- a/test/testfiles/missing-filenames.list
+++ b/test/testfiles/missing-filenames.list
@@ -1,5 +1,5 @@
-missing-filenames-body.rtf
-generpts.src
-TechlibDEC99.doc
-TechlibDEC99-JAN00.doc
-TechlibNOV99.doc
\ No newline at end of file
+EmbeddedRTF.rtf,25a63ced5d5f49da486d3976c9742c6a
+generpts.src,ca67140dddba62d8f778cec882152cb5
+TechlibDEC99.doc,74d3afaa391ded358785d2d7dcd9c11d
+TechlibDEC99-JAN00.doc,abfefd31a4c440654292b9e35aeeaddf
+TechlibNOV99.doc,e51074ae101d7598fffa0de39888069a
\ No newline at end of file
diff --git a/test/testfiles/multi-value-attribute.list b/test/testfiles/multi-value-attribute.list
index 2667fe6..31a40e4 100644
--- a/test/testfiles/multi-value-attribute.list
+++ b/test/testfiles/multi-value-attribute.list
@@ -1 +1 @@
-208225__5_seconds__Voice_Mail.mp3
\ No newline at end of file
+208225__5_seconds__Voice_Mail.mp3,ff6aa0bb42c486315ff79f10ad361649
\ No newline at end of file
diff --git a/test/testfiles/one-file.list b/test/testfiles/one-file.list
index 62deb04..6af9f89 100644
--- a/test/testfiles/one-file.list
+++ b/test/testfiles/one-file.list
@@ -1 +1 @@
-AUTHORS
+AUTHORS,64f49fc16e0c885f7bc4c939364dd0a2
diff --git a/test/testfiles/rtf.list b/test/testfiles/rtf.list
index dc8e9fb..d3b34d6 100644
--- a/test/testfiles/rtf.list
+++ b/test/testfiles/rtf.list
@@ -1 +1 @@
-rtf-body.rtf
\ No newline at end of file
+EmbeddedRTF.rtf,2d866937395fce931d93285c34e1992d
\ No newline at end of file
diff --git a/test/testfiles/triples.list b/test/testfiles/triples.list
index eb7cbd3..5b60b4e 100644
--- a/test/testfiles/triples.list
+++ b/test/testfiles/triples.list
@@ -1 +1 @@
-triples-body.rtf
\ No newline at end of file
+EmbeddedRTF.rtf,8bf613b9e983db0601ca4e7a175cf44d
\ No newline at end of file
diff --git a/test/testfiles/two-files.list b/test/testfiles/two-files.list
index 6f12db5..572d3d2 100644
--- a/test/testfiles/two-files.list
+++ b/test/testfiles/two-files.list
@@ -1,2 +1,2 @@
-AUTHORS
-README
+AUTHORS,64f49fc16e0c885f7bc4c939364dd0a2
+README,7b46a88a7e64bb0532f29416ea5b3116
diff --git a/test/testfiles/unicode-mapi-attr-name.list b/test/testfiles/unicode-mapi-attr-name.list
index d133fb0..2702dd0 100644
--- a/test/testfiles/unicode-mapi-attr-name.list
+++ b/test/testfiles/unicode-mapi-attr-name.list
@@ -1,4 +1,4 @@
-spaconsole2.cfg
-image001.png
-image002.png
-image003.png
\ No newline at end of file
+spaconsole2.cfg,907a560d9a3344f5426762ca169e3130
+image001.png,c123f9a9bd8d73952ede099b17ab8175
+image002.png,bf87d15cf1fd0070c19bbd1e380ce027
+image003.png,bdf717cfaee54efa8b52bfad415bc7e2
\ No newline at end of file
diff --git a/test/testfiles/unicode-mapi-attr.list b/test/testfiles/unicode-mapi-attr.list
index e85b45d..ae6272d 100644
--- a/test/testfiles/unicode-mapi-attr.list
+++ b/test/testfiles/unicode-mapi-attr.list
@@ -1 +1 @@
-example.dat
\ No newline at end of file
+example.dat,cc08b979e186205db2682308fb1b7c7f
\ No newline at end of file