assertEquals("sig check failed", ex.getMessage());
        verify(handle).areSignaturesActive();
    }

    @Test
    @DisplayName("getSession(): returns the mocked SmbSession instance")
    void getSession_returnsMock() {
        // Arrange
        SmbSession session = mock(SmbSession.class);
        when(handle.getSession()).thenReturn(session);

        // Act
        SmbSession result = handle.getSession();