OperatorPage extends BaseDecisionTableColumnPage<ConditionColumnPlugin> { void setOperator(final String operator) { plugin().setOperator(operator); } @Inject  OperatorPage(final View view,
                        final Event<WizardPageStatusChangeEvent> changeEvent,
                        final TranslationService translationService); @Override String getTitle(); @Override void prepareView(); @Override void isComplete(final Callback<Boolean> callback); String getOperator();  }
@Test public void testSetOperator() { final String operator = "operator"; page.setOperator(operator); verify(plugin).setOperator(operator); }