aliasHandle.close();
        });

        assertEquals(errorCode, thrown.getNtStatus());
    }

    @Test
    void close_shouldDoNothingIfAlreadyClosed() throws IOException {
        // Arrange
        int access = 1;
        int rid = 100;

        // Mock constructor success
        doAnswer(invocation -> {

        assertNotNull(capturedRpc);
        assertEquals(handle, capturedRpc.handle); // Ensure the handle itself is passed for closing
    }

    @Test
    void close_shouldDoNothingIfAlreadyClosed() throws IOException {
        // Arrange
        int access = 0x01;
        // Simulate successful open
        doAnswer(invocation -> {
            MsrpcSamrOpenDomain rpc = invocation.getArgument(0);

        verify(mockDcerpcHandle, times(1)).sendrecv(any(MsrpcLsarOpenPolicy2.class));
        verify(mockDcerpcHandle, times(1)).sendrecv(any(MsrpcLsarClose.class));
    }

    @Test
    void close_shouldDoNothingIfAlreadyClosed() throws IOException {
        // Arrange
        // First, successfully create an LsaPolicyHandle instance
        doAnswer(invocation -> {
            MsrpcLsarOpenPolicy2 rpc = invocation.getArgument(0);