String actualDocId = pathStr.replace("/", "").replace("\\", "");
        assertEquals(expectedDocId, actualDocId);
    }

    // Test FilePurgeVisitor visitFileFailed
    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);
    }