mount: add test for dev/ino being different

Author: ThomasWaldmann

src/borg/testsuite/archiver.py

@@ -2908,6 +2908,20 @@ def has_noatime(some_file):
                 else:
                     raise
 
+    @unittest.skipUnless(llfuse, 'llfuse not installed')
+    def test_fuse_dev_ino(self):
+        self.cmd('init', '--encryption=repokey', self.repository_location)
+        self.create_regular_file('testfile', contents=b'test content')
+        original_stat = os.stat('input/testfile')
+        self.cmd('create', self.repository_location + '::archive', 'input')
+        mountpoint = os.path.join(self.tmpdir, 'mountpoint')
+        with self.fuse_mount(self.repository_location + '::archive', mountpoint):
+            mounted_file = os.path.join(mountpoint, 'input', 'testfile')
+            mounted_stat = os.stat(mounted_file)
+        # we must not use the same dev/ino in the FUSE fs
+        assert original_stat.st_ino != mounted_stat.st_ino
+        assert original_stat.st_dev != mounted_stat.st_dev
+
     @unittest.skipUnless(llfuse, 'llfuse not installed')
     def test_fuse_versions_view(self):
         self.cmd('init', '--encryption=repokey', self.repository_location)