// Verify base lease manager was called
        verify(baseLeaseManager).releaseLease(leaseKey);
    }

    @Test
    public void testShutdown() {
        String directoryPath = "/test/dir";
        Smb2LeaseKey leaseKey = new Smb2LeaseKey();

        // Create cache entry

        Suggester suggester = createSuggester();
        suggester.createIndexIfNothing();

        // Should not throw
        assertNotNull(suggester.refresh());
    }

    @Test
    public void test_shutdown() throws Exception {
        Suggester suggester = createSuggester();

        // Should not throw
        suggester.shutdown();
    }