### Question:
DataHandler extends AbstractXulEventHandler { public void onPoolingCheck() { if ( poolingCheck != null ) { boolean dis = !poolingCheck.isChecked(); if ( poolSizeBox != null ) { poolSizeBox.setDisabled( dis ); } if ( maxPoolSizeBox != null ) { maxPoolSizeBox.setDisabled( dis ); } if ( poolSizeLabel != null ) { poolSizeLabel.setDisabled( dis ); } if ( maxPoolSizeLabel != null ) { maxPoolSizeLabel.setDisabled( dis ); } if ( poolParameterTree != null ) { poolParameterTree.setDisabled( dis ); } if ( poolingParameterDescriptionLabel != null ) { poolingParameterDescriptionLabel.setDisabled( dis ); } if ( poolingDescriptionLabel != null ) { poolingDescriptionLabel.setDisabled( dis ); } if ( poolingDescription != null ) { poolingDescription.setDisabled( dis ); } } } DataHandler(); void loadConnectionData(); void loadAccessData(); void editOptions( int index ); void clearOptionsData(); void getOptionHelp(); void setDeckChildIndex(); void onPoolingCheck(); void onClusterCheck(); Object getData(); void setData( Object data ); void pushCache(); void popCache(); void onCancel(); void onOK(); void testDatabaseConnection(); void restoreDefaults(); void poolingRowChange( int idx ); void disablePortIfInstancePopulated(); void handleUseSecurityCheckbox(); static final SortedMap<String, DatabaseInterface> connectionMap; static final Map<String, String> connectionNametoID; }### Answer:
@Test public void testOnPoolingCheck() throws Exception { }