if (mic.length != expected.length || mic[0] != expected[0]) {
                throw new CIFSException("MIC mismatch");
            }
        }

        @Override
        public boolean isMICAvailable() {
            // Available if context is established and integrity is supported
            return this.established && this.integrity;
        }
    }

    @Nested
    @DisplayName("Happy path behavior")

    }

    @Test
    @DisplayName("isMICAvailable returns false before establishment and does not call delegate")
    void testIsMICAvailableBeforeEstablished() {
        SpnegoContext ctx = newContext();
        // The mock setup is unnecessary since we never call it
        assertFalse(ctx.isMICAvailable());
        verify(this.mechContext, never()).isMICAvailable();
    }

    @Test

    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SSPContext#isMICAvailable()
     */
    @Override
    public boolean isMICAvailable() {
        if (!this.completed) {
            return false;
        }
        return this.mechContext.isMICAvailable();
    }

    /**
     * {@inheritDoc}
     *
     * @see java.lang.Object#toString()
     */

    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();

            throw new CIFSException("Failed to verify MIC", e);
        }
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SSPContext#isMICAvailable()
     */
    @Override
    public boolean isMICAvailable() {
        return this.gssContext.getIntegState();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SSPContext#getNetbiosName()
     */

    }

    @Test
    @DisplayName("isMICAvailable reflects GSS integ state")
    void isMICAvailable_behavior() {
        when(gssContext.getIntegState()).thenReturn(false).thenReturn(true);
        assertFalse(ctx.isMICAvailable());
        assertTrue(ctx.isMICAvailable());
    }

    @Test
    @DisplayName("getNetbiosName returns null")

        md5.update((byte) 0);
        return md5.digest();
    }

    @Override
    public boolean supportsIntegrity() {
        return true;
    }

    @Override
    public boolean isMICAvailable() {
        return !this.auth.isGuest() && this.signKey != null && this.verifyKey != null;
    }

    @Override
    public byte[] calculateMIC(final byte[] data) throws CIFSException {