PMCORE-1596 The files attached in the cases notes needs to send in the email notification.

tests/unit/workflow/engine/src/ProcessMaker/Model/DocumentsTest.php

@@ -1,7 +1,9 @@
 <?php
+
 namespace Tests\unit\workflow\engine\src\ProcessMaker\Model;
 
 use Illuminate\Foundation\Testing\DatabaseTransactions;
+use ProcessMaker\Model\AppNotes;
 use ProcessMaker\Model\Documents;
 use Tests\TestCase;
 
@@ -26,4 +28,22 @@ class DocumentsTest extends TestCase
         $res = $doc->getAppFiles($appDoc->APP_UID, Documents::DOC_TYPE_CASE_NOTE);
         $this->assertNotEmpty($res);
     }
+    
+    /**
+     * This test verify if exists attachment files.
+     * @test
+     * @covers Documents::getAttachedFilesFromTheCaseNote
+     */
+    public function it_should_test_get_attached_files_from_the_casenote()
+    {
+        $appNote = factory(AppNotes::class)->create();
+        $appDocument = factory(Documents::class)->create([
+            'DOC_ID' => $appNote->NOTE_ID
+        ]);
+
+        $appUid = $appDocument->APP_UID;
+        $result = Documents::getAttachedFilesFromTheCaseNote($appUid);
+
+        $this->assertNotEmpty($result);
+    }
 }