diff --git a/tests/Sabre/DAV/FSExt/FileTest.php b/tests/Sabre/DAV/FSExt/FileTest.php
index 2b759e5d0d..a4c2e4e3ea 100644
--- a/tests/Sabre/DAV/FSExt/FileTest.php
+++ b/tests/Sabre/DAV/FSExt/FileTest.php
@@ -34,7 +34,16 @@ public function testPut()
         );
     }
 
-    public function testRange()
+    public function testRangeAppend()
+    {
+        $file = new File(SABRE_TEMPDIR.'/file.txt');
+        $file->put('0000000');
+        $file->patch('111', 1);
+
+        $this->assertEquals('0000000111', file_get_contents(SABRE_TEMPDIR.'/file.txt'));
+    }
+
+    public function testRangeOffset()
     {
         $file = new File(SABRE_TEMPDIR.'/file.txt');
         $file->put('0000000');
@@ -43,6 +52,24 @@ public function testRange()
         $this->assertEquals('0001110', file_get_contents(SABRE_TEMPDIR.'/file.txt'));
     }
 
+    public function testRangeOffsetEnd()
+    {
+        $file = new File(SABRE_TEMPDIR.'/file.txt');
+        $file->put('0000000');
+        $file->patch('11', 3, -4);
+
+        $this->assertEquals('0001100', file_get_contents(SABRE_TEMPDIR.'/file.txt'));
+    }
+
+    public function testRangeOffsetDefault()
+    {
+        $file = new File(SABRE_TEMPDIR.'/file.txt');
+        $file->put('0000000');
+        $file->patch('11', 0);
+
+        $this->assertEquals('000000011', file_get_contents(SABRE_TEMPDIR.'/file.txt'));
+    }
+
     public function testRangeStream()
     {
         $stream = fopen('php://memory', 'r+');