assertNull(testRequest.getNext());
            assertEquals(0, nextRequest.getFlags() & SMB2_FLAGS_RELATED_OPERATIONS);
        }

        @Test
        @DisplayName("split should return null when no next request")
        void testSplitNoNext() {
            CommonServerMessageBlockRequest result = testRequest.split();
            assertNull(result);
        }
    }

      return;
    }
    assertNull(map.get(unmappedKey));
  }

  public void testGetForEmptyMap() {
    Map<K, V> map;
    K unmappedKey = null;
    try {
      map = makeEmptyMap();
      unmappedKey = getKeyNotInPopulatedMap();
    } catch (UnsupportedOperationException e) {
      return;
    }
    assertNull(map.get(unmappedKey));
  }

  public void testGetNull() {

        assertFalse(iterator.hasNext());
        assertNull(iterator.next());

        verify(resource, never()).close();
    }

    @Test
    @DisplayName("Empty iterator")
    void emptyIterator() {
        when(delegate.hasNext()).thenReturn(false);

        TestIterator iterator = new TestIterator(null);

        assertFalse(iterator.hasNext());
        assertNull(iterator.next());
    }

    @Test

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.security;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import org.codelibs.core.exception.EmptyArgumentException;
import org.codelibs.core.exception.NoSuchAlgorithmRuntimeException;
import org.junit.Test;

/**

package jcifs.util.transport;

import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

class MessageTest {

    private Message message;

    @BeforeEach
    void setUp() {

        Thread.sleep(2000);
        assertTrue(expiredCount > 0);
        assertEquals(1, TimeoutManager.getInstance().getTimeoutTaskCount());
        TimeoutManager.getInstance().stop();
        assertNull(TimeoutManager.getInstance().thread);
        Thread.sleep(10);
        int count = expiredCount;
        task.stop();
        TimeoutManager.getInstance().start();

  }

  public void testGet_constantWithGenericsNotUsed() {
    assertNull(ArbitraryInstances.get(WithGenericConstant.class));
  }

  public void testGet_nullConstant() {
    assertNull(ArbitraryInstances.get(WithNullConstant.class));
  }

  public void testGet_constantTypeDoesNotMatch() {
    assertNull(ArbitraryInstances.get(ParentClassHasConstant.class));
  }

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNotSame;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

        concreteBlock.reset();
        assertEquals(0L, concreteBlock.getMid());
        assertEquals(0, concreteBlock.getCommand());
        assertNull(concreteBlock.getDigest());
        assertNull(concreteBlock.getResponse());
    }

        assertEquals(NtStatus.NT_STATUS_UNSUCCESSFUL, ex.getNtStatus(), "Default NT status should be UNSUCCESSFUL");
        assertNull(ex.getCause(), "Cause should be null by default");
        assertNull(ex.getRootCause(), "Root cause should be null by default");
        assertTrue(ex instanceof SmbException, "Should be an SmbException subtype");
    }

    /**