Program: 56483
Project: 56483
Buggy source:
public void testDateInput1(Book book){
  Sheet sheet=book.getSheetAt(0);
  Range r;
  Setup.setZssLocale(Locale.TAIWAN);
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.NUMERIC,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.STRING,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  Setup.setZssLocale(Locale.US);
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.NUMERIC,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.STRING,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  Setup.setZssLocale(Locale.UK);
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.NUMERIC,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellStyle().getDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.STRING,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
}

Fixed version (ground truth):
public void testDateInput1(Book book){
  Sheet sheet=book.getSheetAt(0);
  Range r;
  Setup.setZssLocale(Locale.TAIWAN);
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.NUMERIC,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.STRING,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  Setup.setZssLocale(Locale.US);
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.NUMERIC,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.STRING,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  Setup.setZssLocale(Locale.UK);
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.NUMERIC,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
  r=Ranges.range(sheet,"String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  r.setCellEditText("String_Node_Str");
  Assert.assertEquals("String_Node_Str",r.getCellDataFormat());
  Assert.assertEquals("String_Node_Str",r.getCellFormatText());
  Assert.assertEquals(CellType.STRING,r.getCellData().getType());
  Assert.assertEquals("String_Node_Str",r.getCellEditText());
}