void setUp() {
        dfsResolver = new DfsImpl(mockContext);
        when(mockContext.getConfig()).thenReturn(mockConfig);
    }

    // Test for isTrustedDomain method
    @Test
    void testIsTrustedDomain_DfsDisabled() throws CIFSException {
        when(mockConfig.isDfsDisabled()).thenReturn(true);
        assertFalse(dfsResolver.isTrustedDomain(mockContext, "anyDomain"));
    }

    @Test

        // The constructor is called in setUp(), so if no exception is thrown, this test passes.
        assertNotNull(dfsImpl);
    }

    // Tests for isTrustedDomain
    @Test
    void testIsTrustedDomain_DfsDisabled() throws SmbAuthException {
        // Scenario: DFS is disabled in the configuration.
        when(mockConfig.isDfsDisabled()).thenReturn(true);
        assertFalse(dfsImpl.isTrustedDomain(mockContext, "anydomain.com"));