}

    @Test
    void constructor_shouldHandleNullPolicyHandle() {
        // Arrange
        LsaPolicyHandle nullHandle = null;
        short level = 1;

        // Act
        queryPolicy = new MsrpcQueryInformationPolicy(nullHandle, level, mockNdrObject);

        // Assert
        assertNotNull(queryPolicy);
        assertEquals(null, queryPolicy.handle);
    }

    }

    @Nested
    @DisplayName("Constructor input validation")
    class CtorValidation {
        @Test
        @DisplayName("null handle throws NPE")
        void nullHandle() {
            assertThrows(NullPointerException.class, () -> new SmbPipeInputStream(null, tree));
        }

        @Test
        @DisplayName("null tree throws NPE")
        void nullTree() {