def test_derive_file_elements_for_unknown_files(self):
c = Collector()
s = c.add_symbol("some_symbol", "00a")
self.assertEqual("some_symbol", s[collector.NAME])
self.assertNotIn(collector.PATH, s)
self.assertNotIn(collector.BASE_FILE, s)
c.derive_folders()
self.assertEqual("<unknown>/<unknown>", s[collector.PATH])
self.assertEqual("<unknown>", s[collector.BASE_FILE])
self.assertIn(collector.FILE, s)
file = s[collector.FILE]
self.assertEqual("<unknown>", file[collector.NAME])
folder = file[collector.FOLDER]
self.assertEqual("<unknown>", file[collector.NAME])
