assertTrue(lastModified > 0, "Last modified time should be set");
        assertTrue(lastAccess >= 0, "Last access time should be non-negative");

        // Test setting attributes
        file.setReadOnly();
        assertFalse(file.canWrite(), "Should not be writable when read-only");

        file.setReadWrite();
        assertTrue(file.canWrite(), "Should be writable after setReadWrite");
    }

    @Test