### Question:
TableInfoDataSet implements IDataSet { public final int getColumnCount() { return s_hdgs.length; } TableInfoDataSet();  TableInfoDataSet(ITableInfo ti); final int getColumnCount(); DataSetDefinition getDataSetDefinition(); synchronized void setTableInfo(ITableInfo ti); synchronized boolean next(IMessageHandler msgHandler); synchronized Object get(int columnIndex);  }### Answer:
@Test public final void testGetColumnCount() { assertEquals(2, classUnderTest.getColumnCount()); }