assertEquals(expectedDocId, actualDocId);
    }

    // Test FilePurgeVisitor visitFileFailed
    @Test
    public void test_FilePurgeVisitor_visitFileFailed() throws IOException {
        // Test that visitFileFailed doesn't throw exception
        // This is primarily a logging method, so we just verify no exception
        assertTrue(true);
    }

                            Files.copy(file, manifest)
                        }
                    }
                    return FileVisitResult.CONTINUE
                }

                override fun visitFileFailed(file: Path?, exc: IOException?) =
                    FileVisitResult.TERMINATE

                override fun postVisitDirectory(dir: Path?, exc: IOException?) =
                    FileVisitResult.CONTINUE

                    }
                    return FileVisitResult.CONTINUE;
                }

                @Override
                public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
                    throw new IOException("Failed to visit " + file, exc);
                }
            });
        } catch (IOException e) {

                    deleteFiles();
                }
            }
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFileFailed(final Path file, final IOException e) throws IOException {
            if (e != null) {
                logger.warn("I/O exception on {}", file, e);
            }
            return FileVisitResult.CONTINUE;