@DisplayName("Mockito: verify renew() interaction and return value")
    void mockitoInteraction(@Mock CredentialsInternal returned, @Mock SmbRenewableCredentials renewable) {
        // Arrange: stub renew() to return a mocked CredentialsInternal
        when(renewable.renew()).thenReturn(returned);

        // Act: invoke renew()
        CredentialsInternal result = renewable.renew();

        verify(locator).handleDFSReferral(referral, null);
        verifyNoMoreInteractions(locator);
    }

    // Interaction detail: capture arguments passed to handleDFSReferral
    @Test
    @DisplayName("handleDFSReferral receives the exact arguments via captor")
    void handleDfsReferralArgumentCapture() {

    }

    @Test
    void constructorRejectsNull() {
        // Expect constructor to throw IllegalArgumentException when passed null
        assertThrows(IllegalArgumentException.class, () -> new UniAddress(null));
    }

    /* ---------------------------------------------------------------------
     * 2. Value based tests for instance methods
     * --------------------------------------------------------------------- */
    @ParameterizedTest

    @Test
    void testGetTree() {
        when(smbFileHandle.getTree()).thenReturn(smbTreeHandle);
        SmbTreeHandle result = smbFileHandle.getTree();
        assertEquals(smbTreeHandle, result, "getTree should return the mocked SmbTreeHandle.");
        verify(smbFileHandle, times(1)).getTree();
    }

    /**
     * Test isValid() when the handle is valid.
     */
    @Test
    void testIsValid_whenValid() {

        verify(mockRequest, times(1)).isCancel();
    }

    @Test
    void testIsCancelFalse() {
        // Test case for isCancel method when it returns false
        when(mockRequest.isCancel()).thenReturn(false);

        assertFalse(mockRequest.isCancel(), "isCancel should return false when mocked to do so.");
        verify(mockRequest, times(1)).isCancel();

        assertNotNull(ex.toString(), "toString should be non-null");
        ex.getMessage(); // don't assert content to avoid implementation assumptions

        // Verify no interactions happened with the mocked cause during construction/access
        verifyNoInteractions(mockCause);
    }

    @Test
    @DisplayName("Cause-only constructor with null: null cause maintained")
    void causeOnlyConstructor_acceptsNull() {

        assertTrue(str.contains("Trans2QueryFSInformation["), "should start with class name");
        assertTrue(str.contains(",informationLevel=0x"), "should contain level field marker");
    }

    /** More processing is required to complete this request */
    int NT_STATUS_MORE_PROCESSING_REQUIRED = 0xC0000016;
    /** Access is denied */
    int NT_STATUS_ACCESS_DENIED = 0xC0000022;
    /** The data area passed to a system call is too small */
    int NT_STATUS_BUFFER_TOO_SMALL = 0xC0000023;
    /** The object name is invalid */
    int NT_STATUS_OBJECT_NAME_INVALID = 0xC0000033;
    /** The object was not found */

        assertEquals("cifs", cloned.getService());
        assertEquals(123, cloned.getUserLifeTime());
        assertEquals(456, cloned.getLifeTime());

        // toString should include class marker and not throw
        assertTrue(cloned.toString().startsWith("Kerb5Authenticator["));
    }

    @Test
    @DisplayName("equals/hashCode: subject semantics")
    void equalsAndHashCode_subjectSemantics() {

        // Then
        assertTrue(result, "Custom implementation should return true when initialized with true");
    }

    @Test
    @DisplayName("Test interface can be mocked")
    void testInterfaceCanBeMocked() {
        // Given
        SmbNegotiationRequest mockRequest = mock(SmbNegotiationRequest.class);

        // Then