ISQLDatabaseMetaData md = FwTestUtil.getEasyMockSQLMetaData("oracle", "jdbc:oracle");
ColumnDifference diff = new ColumnDifference();
TableColumnInfo column1 = FwTestUtil.getBigintColumnInfo(md, true);
TableColumnInfo column2 = FwTestUtil.getVarcharColumnInfo(md, true, 100);
diff.setColumns(column1, column2);
diff.execute();
ColumnDifference diff2 = new ColumnDifference();
TableColumnInfo column3 = FwTestUtil.getVarcharColumnInfo(md, true, 200);
TableColumnInfo column4 = FwTestUtil.getVarcharColumnInfo(md, true, 100);
diff2.setColumns(column3, column4);