@Test
  public void testGeneralCellValue1() {
    SBook book = SBooks.createBook("book1");
    SSheet sheet = book.createSheet("Sheet 1");
    Date now = new Date();
    ErrorValue err = new ErrorValue(ErrorValue.INVALID_FORMULA);
    SCell cell = sheet.getCell(1, 1);

    Assert.assertEquals(CellType.BLANK, cell.getType());
    Assert.assertNull(cell.getValue());

    SRanges.range(sheet, 1, 1).setEditText("abc");
    Assert.assertEquals(CellType.STRING, cell.getType());
    Assert.assertEquals("abc", cell.getValue());

    SRanges.range(sheet, 1, 1).setEditText("123");
    Assert.assertEquals(CellType.NUMBER, cell.getType());
    Assert.assertEquals(123, cell.getNumberValue().intValue());

    SRanges.range(sheet, 1, 1).setEditText("2013/01/01");
    Assert.assertEquals(CellType.NUMBER, cell.getType());
    Assert.assertEquals(
        "2013/01/01", new SimpleDateFormat("yyyy/MM/dd").format((Date) cell.getDateValue()));

    SRanges.range(sheet, 1, 1).setEditText("tRue");
    Assert.assertEquals(CellType.BOOLEAN, cell.getType());
    Assert.assertEquals(Boolean.TRUE, cell.getBooleanValue());

    SRanges.range(sheet, 1, 1).setEditText("FalSe");
    Assert.assertEquals(CellType.BOOLEAN, cell.getType());
    Assert.assertEquals(Boolean.FALSE, cell.getBooleanValue());

    SRanges.range(sheet, 1, 1).setEditText("=SUM(999)");
    Assert.assertEquals(CellType.FORMULA, cell.getType());
    Assert.assertEquals(CellType.NUMBER, cell.getFormulaResultType());
    Assert.assertEquals("SUM(999)", cell.getFormulaValue());
    Assert.assertEquals(999D, cell.getValue());

    try {
      SRanges.range(sheet, 1, 1).setEditText("=SUM)((999)");
      Assert.fail("not here");
    } catch (InvalidModelOpException x) {
      // old value
      Assert.assertEquals(CellType.FORMULA, cell.getType());
      Assert.assertEquals(CellType.NUMBER, cell.getFormulaResultType());
      Assert.assertEquals("SUM(999)", cell.getFormulaValue());
      Assert.assertEquals(999D, cell.getValue());
    }

    SRanges.range(sheet, 1, 1).setEditText("");
    Assert.assertEquals(CellType.BLANK, cell.getType());
    Assert.assertEquals(null, cell.getValue());
  }
  @Test
  public void testGeneralCellValue2() {
    SBook book = SBooks.createBook("book1");
    SSheet sheet = book.createSheet("Sheet 1");
    Date now = new Date();
    ErrorValue err = new ErrorValue(ErrorValue.INVALID_FORMULA);
    SCell cell = sheet.getCell(1, 1);

    Assert.assertEquals(CellType.BLANK, cell.getType());
    Assert.assertNull(cell.getValue());

    SRanges.range(sheet, 1, 1).setValue("abc");
    Assert.assertEquals(CellType.STRING, cell.getType());
    Assert.assertEquals("abc", cell.getValue());

    SRanges.range(sheet, 1, 1).setValue(123D);
    Assert.assertEquals(CellType.NUMBER, cell.getType());
    Assert.assertEquals(123D, cell.getValue());

    SRanges.range(sheet, 1, 1).setValue(now);
    Assert.assertEquals(CellType.NUMBER, cell.getType());
    Assert.assertEquals(now, cell.getDateValue());

    SRanges.range(sheet, 1, 1).setValue(Boolean.TRUE);
    Assert.assertEquals(CellType.BOOLEAN, cell.getType());
    Assert.assertEquals(Boolean.TRUE, cell.getValue());

    SRanges.range(sheet, 1, 1).setValue("=SUM(999)");
    Assert.assertEquals(CellType.FORMULA, cell.getType());
    Assert.assertEquals(CellType.NUMBER, cell.getFormulaResultType());
    Assert.assertEquals("SUM(999)", cell.getFormulaValue());
    Assert.assertEquals(999D, cell.getValue());

    try {
      SRanges.range(sheet, 1, 1).setValue("=SUM)((999)");
      Assert.fail("not here");
    } catch (InvalidModelOpException x) {
      Assert.assertEquals(CellType.FORMULA, cell.getType());
      Assert.assertEquals(CellType.NUMBER, cell.getFormulaResultType());
      Assert.assertEquals("SUM(999)", cell.getFormulaValue());
      Assert.assertEquals(999D, cell.getValue());
    }

    SRanges.range(sheet, 1, 1).setValue("");
    Assert.assertEquals(CellType.STRING, cell.getType());
    Assert.assertEquals("", cell.getValue());
  }