}

        @Test
        @DisplayName("Should initialize DfsReferralResponseBuffer")
        void testDfsResponseBufferInitialization() {
            assertNotNull(response.getDfsResponse());
            assertTrue(response.getDfsResponse() instanceof DfsReferralResponseBuffer);
        }

        @Test
        @DisplayName("Should throw NullPointerException with null configuration")

import org.mockito.MockitoAnnotations;

/**
 * Test suite for DfsReferralResponseBuffer
 */
class DfsReferralResponseBufferTest {

    private DfsReferralResponseBuffer buffer;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        buffer = new DfsReferralResponseBuffer();
    }

    @Nested
    @DisplayName("Constructor and Initial State Tests")