verify(this.mechContext, never()).calculateMIC(any());
    }

    @Test
    @DisplayName("verifyMIC throws when context not established")
    void testVerifyMICRequiresEstablished() throws Exception {
        SpnegoContext ctx = newContext();
        CIFSException ex = assertThrows(CIFSException.class, () -> ctx.verifyMIC(new byte[] { 1 }, new byte[] { 2 }));
        assertEquals("Context is not established", ex.getMessage());

     * @param data the data to verify
     * @param mic the MIC to verify against
     * @throws CIFSException if the MIC verification fails or an error occurs
     */
    void verifyMIC(byte[] data, byte[] mic) throws CIFSException;

    /**
     * Checks whether Message Integrity Code (MIC) is available for use.
     * @return whether MIC can be used
     */
    boolean isMICAvailable();