@Test
public void setConfigurationObjectIOException() throws Exception {

    // SETUP
    when(this.dlmsConnection.set(any(SetParameter.class))).thenThrow(new IOException());
    assertThatExceptionOfType(ConnectionException.class).isThrownBy(() -> {
        // CALL
        this.instance.setConfigurationObject(this.conn, null, null);
    });
}