assertEquals(NbtException.getErrorString(errorClass, errorCode), exception.getMessage(),
                "Exception message should match getErrorString output");
        assertTrue(exception instanceof CIFSException, "NbtException should be an instance of CIFSException");
    }

    /**
     * Test the getErrorString method with various error classes and codes to ensure all branches are covered.

@DisplayName("NbtException Tests")
class NbtExceptionTest {

    @Test
    @DisplayName("getErrorString success returns SUCCESS")
    void testSuccess() {
        assertEquals("SUCCESS", NbtException.getErrorString(NbtException.SUCCESS, 0));
    }

    @Test
    @DisplayName("getErrorString for name service error with known code")
    void testNameServiceKnown() {

    public NbtException(final int errorClass, final int errorCode) {
        super(getErrorString(errorClass, errorCode));
        this.errorClass = errorClass;
        this.errorCode = errorCode;
    }

    @Override
    public String toString() {
        return ("errorClass=" + errorClass + ",errorCode=" + errorCode + ",errorString=" + getErrorString(errorClass, errorCode));
    }

        super(getErrorString(errorClass, errorCode));
        this.errorClass = errorClass;
        this.errorCode = errorCode;
    }

    @Override
    public String toString() {
        return ("errorClass=" + this.errorClass + ",errorCode=" + this.errorCode + ",errorString="
                + getErrorString(this.errorClass, this.errorCode));
    }