if (tc == null) {
                throw new NullPointerException("tc");
            }
            // Exercise interaction with dependency for verification purposes
            // These methods do not throw and allow interaction checks.
            tc.getConfig();
            tc.getCredentials();

            // Minimal behavior: return a mock SSPContext with lenient stubbing

    @Test
    @DisplayName("Test decode with signature verification failure")
    void testDecodeWithSignatureVerificationFailure() {
        testBlock = new TestAndXServerMessageBlock(mockConfig, (byte) 0x25) {
            @Override
            public boolean verifySignature(byte[] data, int offset, int length) {
                return false; // Simulate signature verification failure
            }

            @Override

            assertEquals(0x9ABC, testBlock.getUid());
            assertEquals(0xDEF0, testBlock.getMid());
        }

        @Test
        @DisplayName("Test decode with signature verification failure")
        void testDecodeWithSignatureFailure() {
            testBlock = new TestServerMessageBlock(mockConfig) {
                @Override

        String actualString = request.toString();

        assertTrue(actualString.startsWith(expectedStringPrefix));
        assertTrue(actualString.endsWith("]"));
        // Further verification could involve mocking super.toString() if needed
    }

        void testAllNullParameters() {
            // Act & Assert
            assertDoesNotThrow(() -> new MsrpcSamrConnect2(null, 0, null));
        }
    }

    @Nested
    @DisplayName("Inheritance verification")
    class InheritanceVerification {

        @Test
        @DisplayName("should properly extend base classes")
        void testInheritance() {
            // Arrange

    /**
     * Verifies a Message Integrity Code (MIC) for the given data.
     * @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.

          <type>String</type>
        </field>
        <field>
          <name>checksumPolicy</name>
          <version>1.0.0</version>
          <description>
            What to do when verification of an artifact checksum fails. Valid values are "fail" (default for Maven 4 and
            above), "warn" (default for Maven 3) or "ignore".
          </description>
          <type>String</type>
        </field>

    // interpreted in little-endian order.
    int verification = Integer.reverseBytes(Ints.fromByteArray(result));

    if (expected != verification) {
      throw new AssertionError(
          "Expected: "
              + Integer.toHexString(expected)
              + " got: "
              + Integer.toHexString(verification));
    }
  }

  static final Funnel<Object> BAD_FUNNEL =

            System.arraycopy(buffer, 4, payload, 0, len);
            setRawPayload(payload);
        }

        if (!verifySignature(buffer, 4, len)) {
            throw new SMBProtocolDecodingException("Signature verification failed for " + this.getClass().getName());
        }
        return len;
    }

    /**
     * Writes the AndX wire format to buffer
     * @param dst the destination buffer

        when(mockRequest.getLength()).thenReturn(100);

        // Sign the data
        signDigest.sign(data, 0, data.length, mockRequest, null);

        // Create a new digest for verification with same key
        SMB1SigningDigest verifyDigest = new SMB1SigningDigest(testMacSigningKey);

        // Verify should return false when signature is correct (no error)