diff --git a/_config/extensions.yml b/_config/extensions.yml
index a453b3e..96ed75b 100644
--- a/_config/extensions.yml
+++ b/_config/extensions.yml
@@ -28,3 +28,6 @@ SilverStripe\CMS\Model\SiteTree:
   extensions:
     SearchServiceExtension: SilverStripe\SearchService\Extensions\SearchServiceExtension
     SiteTreeHierarchyExtension: SilverStripe\SearchService\Extensions\SiteTreeHierarchyExtension
+SilverStripe\Assets\File:
+  extensions:
+    SearchServiceExtension: SilverStripe\SearchService\Extensions\SearchServiceExtension
diff --git a/tests/Service/FolderPrivacyTest.php b/tests/Service/FolderPrivacyTest.php
new file mode 100644
index 0000000..07f0ec2
--- /dev/null
+++ b/tests/Service/FolderPrivacyTest.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace SilverStripe\SearchService\Tests\Service;
+
+use SilverStripe\Forms\Form;
+use SilverStripe\Assets\File;
+use SilverStripe\Assets\Image;
+use SilverStripe\Forms\TabSet;
+use SilverStripe\Assets\Folder;
+use SilverStripe\Security\Group;
+use SilverStripe\Forms\FieldList;
+use SilverStripe\Dev\SapphireTest;
+use SilverStripe\SearchService\DataObject\DataObjectDocument;
+use SilverStripe\SearchService\Extensions\SearchFormFactoryExtension;
+
+
+class FolderPrivacyTest extends SapphireTest
+{
+
+    protected static $fixture_file = [ // phpcs:ignore
+        '../fixtures.yml',
+        '../pages.yml',
+    ];
+
+    public function testDefaultFolderFileShowInSearch(): void
+    {
+        $folder = $this->objFromFixture(Folder::class, 'folder');
+        // Add file to folder
+        $file = $this->objFromFixture(File::class, 'pdf-file');
+        $file->ParentID = $folder->ID;
+        $file->write();
+
+        $this->assertCount(1, $folder->myChildren());
+
+        // File should be indexed
+        $doc = DataObjectDocument::create($file);
+        $this->assertTrue($doc->shouldIndex());
+    }
+
+    public function testRestrictedFolderFileShowInSearch(): void
+    {
+        $folder = $this->objFromFixture(Folder::class, 'folder');
+        // Set permission to admin only
+        $folder->CanViewType = 'OnlyTheseUsers';
+        $folder->ViewerGroups()->add($this->objFromFixture(Group::class, 'admin-group'));
+        $folder->write();
+        $folder->publishRecursive();
+
+        // File::add_extension(SearchServiceExtension::class,);
+
+        // Add files to folder
+        $file = $this->objFromFixture(File::class, 'pdf-file');
+        $file->ParentID = $folder->ID;
+        $file->write();
+        $image = $this->objFromFixture(Image::class, 'image');
+        $image->ParentID = $folder->ID;
+        $image->write();
+
+        $this->assertCount(2, $folder->myChildren());
+
+        // Remove permission on folder and check if file is indexed
+        $folder->CanViewType = 'Inherit';
+        $folder->ViewerGroups()->removeAll();
+        $folder->write();
+
+        // File should be indexed
+        $doc1 = DataObjectDocument::create($file);
+        $this->assertTrue($doc1->shouldIndex());
+
+        // Image file should not be indexed
+        $doc2 = DataObjectDocument::create($image);
+        $this->assertFalse($doc2->shouldIndex());
+    }
+}
diff --git a/tests/fixtures.yml b/tests/fixtures.yml
index 4ee023f..d060a7b 100644
--- a/tests/fixtures.yml
+++ b/tests/fixtures.yml
@@ -14,6 +14,11 @@ SilverStripe\SearchService\Tests\Fake\ImageFake:
     URL: '/image-two/'
     Tags: =>SilverStripe\SearchService\Tests\Fake\TagFake.one,=>SilverStripe\SearchService\Tests\Fake\TagFake.two
 
+SilverStripe\Security\Group:
+  admin-group:
+    Title: Administrators
+    Code: administrators
+
 SilverStripe\Security\Member:
   one:
     FirstName: member-one-first
@@ -24,6 +29,10 @@ SilverStripe\Security\Member:
   three:
     FirstName: member-three-first
     Surname: member-three-last
+  admin-user:
+    FirstName: admin-first
+    Surname: admin-last
+    Groups: =>SilverStripe\Security\Group.admin-group
 
 SilverStripe\SearchService\Tests\Fake\DataObjectFake:
   one:
@@ -64,3 +73,19 @@ SilverStripe\Subsites\Model\Subsite:
     Title: 'Subsite 1'
   subsite2:
     Title: 'Subsite 2'
+
+SilverStripe\Assets\Image:
+  image:
+    Name: 'Image'
+    Filename: silverstripe-logo.png
+    PopulateFileFrom: tests/silverstripe-logo.png
+
+SilverStripe\Assets\File:
+  pdf-file:
+    Title: Test File
+    Filename: test-file.pdf
+    PopulateFileFrom: tests/test-file.pdf
+
+SilverStripe\Assets\Folder:
+  folder:
+    Name: 'Folder'
diff --git a/tests/silverstripe-logo.png b/tests/silverstripe-logo.png
new file mode 100644
index 0000000..c70ca44
Binary files /dev/null and b/tests/silverstripe-logo.png differ
diff --git a/tests/test-file.pdf b/tests/test-file.pdf
new file mode 100644
index 0000000..a9ecd2b
Binary files /dev/null and b/tests/test-file.pdf differ