}

    /**
     * Exception flow: filter throws SmbException and it propagates to caller.
     */
    @Test
    @DisplayName("throws SmbException as declared by contract")
    void throwsSmbExceptionFromFilter() {
        SmbFilenameFilter filter = (dir, name) -> {
            throw new SmbException("boom");
        };

        SmbException ex = assertThrows(SmbException.class, () -> filter.accept(mockDir, "x"));