package jcifs.smb;

import static org.junit.jupiter.api.Assertions.assertAll;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

        assertNull(dfsResolver.getDc(mockContext, "anyDomain"));
    }

    // Test for resolve method
    @Test
    void testResolve_DfsDisabled() throws CIFSException {
        when(mockConfig.isDfsDisabled()).thenReturn(true);
        assertNull(dfsResolver.resolve(mockContext, "anyDomain", "anyRoot", "anyPath"));
    }

    @Test

        params.put(ExtractData.RESOURCE_NAME_KEY, resourceName);
        assertNull(pdfExtractor.getPassword(params));

        url = "http://test.com/hoge1.pdf";
        resourceName = null;
        params.put(ExtractData.URL, url);
        params.put(ExtractData.RESOURCE_NAME_KEY, resourceName);
        assertNull(pdfExtractor.getPassword(params));

        url = "http://test.com/hoge1.pdf";

        // Expect null message and null cause
        assertNull(e.getMessage());
        assertNull(e.getCause());
    }

    /**
     * Test the constructor with a message.
     */
    @Test
    void testMessageConstructor() {
        String errorMessage = "This is a test error message.";
        PACDecodingException e = new PACDecodingException(errorMessage);

        CurlException exception = new CurlException(null);

        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void testConstructorWithNullMessageAndCause() {
        IOException cause = new IOException("IO error");
        CurlException exception = new CurlException(null, cause);

        assertNull(exception.getMessage());
        assertSame(cause, exception.getCause());

        assertNotNull(queue);
        assertNull(queue.getId());
        assertNull(queue.getSessionId());
        assertNull(queue.getMethod());
        assertNull(queue.getUrl());
        assertNull(queue.getMetaData());
        assertNull(queue.getEncoding());
        assertNull(queue.getParentUrl());
        assertNull(queue.getDepth());
        assertNull(queue.getLastModified());

        assertEquals(expectedStatus, ex.getNtStatus(), "status should map based on code");
        assertNull(ex.getCause(), "cause must be null for int constructor");
        assertNull(ex.getRootCause(), "rootCause must be null for int constructor");
    }

    /**
     * Validate message-only constructor with both null and empty messages.
     */

        // Arrange & Act
        SMBProtocolDowngradeException ex = new SMBProtocolDowngradeException();

        // Assert - message and cause are null
        assertNull(ex.getMessage(), "Default constructor should have null message");
        assertNull(ex.getCause(), "Default constructor should have null cause");

        // Assert - toString shows class name when message is null

    }

    public void test_normalize_null() {
        String enc;

        enc = null;
        assertNull(encodingHelper.normalize(enc));

        enc = "";
        assertNull(encodingHelper.normalize(enc));

        enc = " ";
        assertNull(encodingHelper.normalize(enc));
    }

    public void test_normalize_default() {
        String enc;

        assertNull(dfsImpl.getDc(mockContext, "anydomain.com"));
    }

    @Test
    void testGetDc_ConnectionFails() throws SmbAuthException {
        // Scenario: Transport connection fails when getting DC
        when(mockCredentials.getUserDomain()).thenReturn("authdomain.com");
        // When transport fails to connect, getDc returns null
        assertNull(dfsImpl.getDc(mockContext, "anydomain.com"));