LogStream.setInstance(stream2);
        LogStream instance2 = LogStream.getInstance();

        // Each setInstance should create a new LogStream
        assertNotNull(instance1);
        assertNotNull(instance2);
        // The second setInstance replaces the first, so they should not be the same
        assertNotSame(instance1, instance2);

        Map<String, List<String>> result = response.getHeaders();
        assertNotNull(result);
        assertEquals(2, result.size());
        assertTrue(result.containsKey("content-type"));
        assertTrue(result.containsKey("content-length"));
        // Null value should be replaced with empty list
        assertNotNull(result.get("content-type"));
        assertEquals(0, result.get("content-type").size());
    }

            assertNotNull(context);
            assertArrayEquals(ciphers, context.getCiphers());
        }

        @Test
        @DisplayName("Should create instance with null ciphers")
        void testConstructorWithNullCiphers() {
            EncryptionNegotiateContext context = new EncryptionNegotiateContext(mockConfig, null);

            assertNotNull(context);

        assertNotNull(builder);

        DefaultSettingsBuildingRequest request = new DefaultSettingsBuildingRequest();
        request.setSystemProperties(System.getProperties());
        request.setUserSettingsFile(getSettings("simple"));

        SettingsBuildingResult result = builder.build(request);
        assertNotNull(result);
        assertNotNull(result.getEffectiveSettings());
    }

        // Then
        assertNotNull(dfsRootEnum, "The MsrpcDfsRootEnum object should not be null.");
        // The server name is stored in a protected field without a public getter, so we cannot directly test it.
        // We can test the public fields that are set.
        assertEquals(200, dfsRootEnum.level, "The level should be initialized to 200.");
        assertNotNull(dfsRootEnum.info, "The info struct should not be null.");

        assertNotNull(digest);
    }

    @Test
    @DisplayName("Test constructor with MAC signing key only (Kerberos mode)")
    void testConstructorKerberosMode() {
        SMB1SigningDigest digest = new SMB1SigningDigest(testMacSigningKey);
        assertNotNull(digest);
    }

    @Test

package jcifs;

import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.mockito.Mockito.when;

import java.net.InetAddress;
import java.net.UnknownHostException;

        assertEquals(Integer.valueOf(Constants.OK_STATUS), result.getStatus());

        // CreateTime should be set
        assertNotNull(result.getCreateTime());

        // AccessResultData should be created (empty)
        assertNotNull(result.getAccessResultData());
    }

    public void test_initWithResultDataOnly() {
        // Test init method with ResultData only

        String anyHosts = NbtAddress.ANY_HOSTS_NAME;
        String masterBrowser = NbtAddress.MASTER_BROWSER_NAME;
        String smbServer = NbtAddress.SMBSERVER_NAME;

        assertNotNull(anyHosts);
        assertNotNull(masterBrowser);
        assertNotNull(smbServer);

        // Test that they have expected lengths
        assertEquals(16, anyHosts.length());
        assertEquals(15, masterBrowser.length());

        PopularWordsResponse response = suggester.popularWords().setSize(10).execute().getResponse();

        assertNotNull(response);
        assertTrue(response.getNum() > 0);
        assertTrue(response.getTotal() > 0);
        assertNotNull(response.getWords());
        assertNotNull(response.getIndex());
    }

    @Test
    public void test_setters() throws Exception {