diff --git a/apps/dav/tests/unit/DAV/AnonymousOptionsTest.php b/apps/dav/tests/unit/DAV/AnonymousOptionsTest.php
new file mode 100644
index 0000000000..4e440e6644
--- /dev/null
+++ b/apps/dav/tests/unit/DAV/AnonymousOptionsTest.php
@@ -0,0 +1,71 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\DAV\tests\unit\DAV;
+
+use OCA\DAV\Connector\Sabre\AnonymousOptionsPlugin;
+use Sabre\DAV\Auth\Backend\BasicCallBack;
+use Sabre\DAV\Auth\Plugin;
+use Sabre\DAV\Server;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\HTTP\Sapi;
+use Test\TestCase;
+
+class AnonymousOptionsTest extends TestCase {
+	private function sendRequest($method, $path) {
+		$server = new Server();
+		$server->addPlugin(new AnonymousOptionsPlugin());
+		$server->addPlugin(new Plugin(new BasicCallBack(function() {
+			return false;
+		})));
+
+		$server->httpRequest->setMethod($method);
+		$server->httpRequest->setUrl($path);
+
+		$server->sapi = new SapiMock();
+		$server->exec();
+		return $server->httpResponse;
+	}
+
+	public function testAnonymousOptionsRoot() {
+		$response = $this->sendRequest('OPTIONS', '');
+
+		$this->assertEquals(200, $response->getStatus());
+	}
+
+	public function testAnonymousOptionsNonRoot() {
+		$response = $this->sendRequest('OPTIONS', 'foo');
+
+		$this->assertEquals(401, $response->getStatus());
+	}
+}
+
+class SapiMock extends Sapi {
+	/**
+	 * Overriding this so nothing is ever echo'd.
+	 *
+	 * @return void
+	 */
+	static function sendResponse(ResponseInterface $response) {
+
+	}
+
+}