### Question:
BasicMonthViewUI extends MonthViewUI { protected Date getMonth(int row, int column) { Calendar calendar = getCalendar(); calendar.add(Calendar.MONTH, row * calendarColumnCount + column); return calendar.getTime(); }  @SuppressWarnings({ "UnusedDeclaration" }) static ComponentUI createUI(JComponent c); @Override void installUI(JComponent c); @Override void uninstallUI(JComponent c); @Override String[] getDaysOfTheWeek(); boolean isUsingKeyboard(); void setUsingKeyboard(boolean val); @Override Date getDayAtLocation(int x, int y); boolean isWeekOfYearCell(int x, int y); @Override void update(Graphics g, JComponent c); @Override void paint(Graphics g, JComponent c); @Override Date getLastDisplayedDay(); static final int MONTH_DOWN; static final int MONTH_UP; }### Answer:
@Test public void testDateToGridPositionNonLeading() { if (GraphicsEnvironment.isHeadless()) { LOG.fine("cannot run test - headless environment"); return; } BasicMonthViewUI ui = getRealizedMonthViewUI(ComponentOrientation.LEFT_TO_RIGHT); Date month = ui.getMonth(0, 0); assertDateToDayGrid(ui, month, BasicMonthViewUI.FIRST_WEEK_ROW + 1, BasicMonthViewUI.FIRST_DAY_COLUMN); }
@Test public void testDateToGridPositionMiddle() { if (GraphicsEnvironment.isHeadless()) { LOG.fine("cannot run test - headless environment"); return; } BasicMonthViewUI ui = getRealizedMonthViewUI(ComponentOrientation.LEFT_TO_RIGHT); Date month = ui.getMonth(0, 0); assertDateToDayGrid(ui, month, BasicMonthViewUI.FIRST_WEEK_ROW + 3, BasicMonthViewUI.FIRST_DAY_COLUMN); }