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namespace TestCases.HSSF.UserModel{
using System;
using TestCases.HSSF;
using NPOI.HSSF.Model;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
/**
* Class TestHSSFDateUtil
*
*
* @author Dan Sherman (dsherman at isisph.com)
* @author Hack Kampbjorn (hak at 2mba.dk)
* @author Pavel Krupets (pkrupets at palmtreebusiness dot com)
* @author Alex Jacoby (ajacoby at gmail.com)
* @version %I%, %G%
*/
[TestClass]
public class TestHSSFDateUtil
{
public static int CALENDAR_JANUARY = 1;
public static int CALENDAR_FEBRUARY = 2;
public static int CALENDAR_MARCH = 3;
public static int CALENDAR_APRIL = 4;
public static int CALENDAR_JULY = 7;
public static int CALENDAR_OCTOBER = 10;
/**
* Checks the date conversion functions in the NPOI.SS.UserModel.DateUtil class.
*/
[TestMethod]
public void TestDateConversion()
{
// Iteratating over the hours exposes any rounding issues.
for (int hour = 1; hour < 24; hour++)
{
DateTime date = new DateTime(2002, 1, 1,
hour, 1, 1);
double excelDate =
NPOI.SS.UserModel.DateUtil.GetExcelDate(date, false);
Assert.AreEqual(date,NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate, false), "Checking hour = " + hour);
}
// Check 1900 and 1904 date windowing conversions
double excelDate2 = 36526.0;
// with 1900 windowing, excelDate is Jan. 1, 2000
// with 1904 windowing, excelDate is Jan. 2, 2004
DateTime dateIf1900 = new DateTime(2000, 1, 1); // Jan. 1, 2000
DateTime dateIf1904 = dateIf1900.AddYears(4); // now Jan. 1, 2004
dateIf1904 = dateIf1904.AddDays(1); // now Jan. 2, 2004
// 1900 windowing
Assert.AreEqual(dateIf1900,
NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate2, false), "Checking 1900 Date Windowing");
// 1904 windowing
Assert.AreEqual(
dateIf1904,NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate2, true),"Checking 1904 Date Windowing");
}
/**
* Checks the conversion of a java.util.date to Excel on a day when
* Daylight Saving Time starts.
*/
public void TestExcelConversionOnDSTStart()
{
//TODO:: change time zone
DateTime cal = new DateTime(2004, CALENDAR_MARCH, 28);
for (int hour = 0; hour < 24; hour++)
{
// Skip 02:00 CET as that is the Daylight change time
// and Java converts it automatically to 03:00 CEST
if (hour == 2)
{
continue;
}
cal.AddHours(hour);
DateTime javaDate = cal;
double excelDate = NPOI.SS.UserModel.DateUtil.GetExcelDate(javaDate, false);
double difference = excelDate - Math.Floor(excelDate);
int differenceInHours = (int)(difference * 24 * 60 + 0.5) / 60;
Assert.AreEqual(
hour,
differenceInHours, "Checking " + hour + " hour on Daylight Saving Time start date");
Assert.AreEqual(
javaDate,
NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate, false),
"Checking " + hour + " hour on Daylight Saving Time start date");
}
}
/**
* Checks the conversion of an Excel date to a java.util.date on a day when
* Daylight Saving Time starts.
*/
public void TestJavaConversionOnDSTStart()
{
//TODO:: change time zone
DateTime cal = new DateTime(2004, CALENDAR_MARCH, 28);
double excelDate = NPOI.SS.UserModel.DateUtil.GetExcelDate(cal, false);
double oneHour = 1.0 / 24;
double oneMinute = oneHour / 60;
for (int hour = 0; hour < 24; hour++, excelDate += oneHour)
{
// Skip 02:00 CET as that is the Daylight change time
// and Java converts it automatically to 03:00 CEST
if (hour == 2)
{
continue;
}
cal.AddHours(hour);
DateTime javaDate = NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate, false);
Assert.AreEqual(
excelDate,
NPOI.SS.UserModel.DateUtil.GetExcelDate(javaDate, false),0.001);
}
}
/**
* Checks the conversion of a java.util.Date to Excel on a day when
* Daylight Saving Time ends.
*/
public void TestExcelConversionOnDSTEnd()
{
//TODO:: change time zone
DateTime cal = new DateTime(2004, CALENDAR_OCTOBER, 31);
for (int hour = 0; hour < 24; hour++)
{
cal.AddDays(hour);
DateTime javaDate = cal;
double excelDate = NPOI.SS.UserModel.DateUtil.GetExcelDate(javaDate, false);
double difference = excelDate - Math.Floor(excelDate);
int differenceInHours = (int)(difference * 24 * 60 + 0.5) / 60;
Assert.AreEqual(
hour,
differenceInHours, "Checking " + hour + " hour on Daylight Saving Time end date");
Assert.AreEqual(
javaDate,
NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate, false),
"Checking " + hour + " hour on Daylight Saving Time start date");
}
}
/**
* Checks the conversion of an Excel date to java.util.Date on a day when
* Daylight Saving Time ends.
*/
[TestMethod]
public void TestJavaConversionOnDSTEnd()
{
//TODO:: change time zone
DateTime cal = new DateTime(2004, CALENDAR_OCTOBER, 31);
double excelDate = NPOI.SS.UserModel.DateUtil.GetExcelDate(cal, false);
double oneHour = 1.0 / 24;
double oneMinute = oneHour / 60;
for (int hour = 0; hour < 24; hour++, excelDate += oneHour)
{
cal.AddHours( hour);
DateTime javaDate = NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate, false);
Assert.AreEqual(
excelDate,
NPOI.SS.UserModel.DateUtil.GetExcelDate(javaDate, false),0.1);
}
}
/**
* Tests that we deal with time-zones properly
*/
[TestMethod]
public void TestCalendarConversion()
{
DateTime date = new DateTime(2002, 1, 1, 12, 1, 1);
DateTime expected = date;
// Iterating over the hours exposes any rounding issues.
for (int hour = -12; hour <= 12; hour++)
{
String id = "GMT" + (hour < 0 ? "" : "+") + hour + ":00";
//TODO:: change time zone
//date.SetTimeZone(TimeZone.GetTimeZone(id));
//date.AddDays(12);
double excelDate = NPOI.SS.UserModel.DateUtil.GetExcelDate(date, false);
DateTime javaDate = NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate);
// Should Match despite time-zone
Assert.AreEqual(expected, javaDate, "Checking timezone " + id);
}
}
/**
* Tests that we correctly detect date formats as such
*/
[TestMethod]
public void TestIdentifyDateFormats()
{
// First up, try with a few built in date formats
short[] builtins = new short[] { 0x0e, 0x0f, 0x10, 0x16, 0x2d, 0x2e };
for (int i = 0; i < builtins.Length; i++)
{
String formatStr = HSSFDataFormat.GetBuiltinFormat(builtins[i]);
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsInternalDateFormat(builtins[i]));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsADateFormat(builtins[i], formatStr));
}
// Now try a few built-in non date formats
builtins = new short[] { 0x01, 0x02, 0x17, 0x1f, 0x30 };
for (int i = 0; i < builtins.Length; i++)
{
String formatStr = HSSFDataFormat.GetBuiltinFormat(builtins[i]);
Assert.IsFalse(NPOI.SS.UserModel.DateUtil.IsInternalDateFormat(builtins[i]));
Assert.IsFalse(NPOI.SS.UserModel.DateUtil.IsADateFormat(builtins[i], formatStr));
}
// Now for some non-internal ones
// These come after the real ones
int numBuiltins = HSSFDataFormat.NumberOfBuiltinBuiltinFormats;
Assert.IsTrue(numBuiltins < 60);
short formatId = 60;
Assert.IsFalse(NPOI.SS.UserModel.DateUtil.IsInternalDateFormat(formatId));
// Valid ones first
String[] formats = new String[] {
"yyyy-mm-dd", "yyyy/mm/dd", "yy/mm/dd", "yy/mmm/dd",
"dd/mm/yy", "dd/mm/yyyy", "dd/mmm/yy",
"dd-mm-yy", "dd-mm-yyyy",
"DD-MM-YY", "DD-mm-YYYY",
"dd\\-mm\\-yy", // Sometimes escaped
// These crazy ones are valid
"yyyy-mm-dd;@", "yyyy/mm/dd;@",
"dd-mm-yy;@", "dd-mm-yyyy;@",
// These even crazier ones are also valid
// (who knows what they mean though...)
"[$-F800]dddd\\,\\ mmm\\ dd\\,\\ yyyy",
"[$-F900]ddd/mm/yyy",
// These ones specify colours, who knew that was allowed?
"[BLACK]dddd/mm/yy",
"[yeLLow]yyyy-mm-dd"
};
for (int i = 0; i < formats.Length; i++)
{
Assert.IsTrue(
NPOI.SS.UserModel.DateUtil.IsADateFormat(formatId, formats[i])
,formats[i] + " is a date format"
);
}
// Then time based ones too
formats = new String[] {
"yyyy-mm-dd hh:mm:ss", "yyyy/mm/dd HH:MM:SS",
"mm/dd HH:MM", "yy/mmm/dd SS",
"mm/dd HH:MM AM", "mm/dd HH:MM am",
"mm/dd HH:MM PM", "mm/dd HH:MM pm"
//"m/d/yy h:mm AM/PM"
};
for (int i = 0; i < formats.Length; i++)
{
Assert.IsTrue(
NPOI.SS.UserModel.DateUtil.IsADateFormat(formatId, formats[i]),
formats[i] + " is a datetime format"
);
}
// Then invalid ones
formats = new String[] {
"yyyy*mm*dd",
"0.0", "0.000",
"0%", "0.0%",
"[]Foo", "[BLACK]0.00%",
"", null
};
for (int i = 0; i < formats.Length; i++)
{
Assert.IsFalse(
NPOI.SS.UserModel.DateUtil.IsADateFormat(formatId, formats[i]),
formats[i] + " is not a date or datetime format"
);
}
// And these are ones we probably shouldn't allow,
// but would need a better regexp
formats = new String[] {
"yyyy:mm:dd",
};
for (int i = 0; i < formats.Length; i++)
{
// Assert.IsFalse( NPOI.SS.UserModel.DateUtil.IsADateFormat(formatId, formats[i]) );
}
}
/**
* Test that against a real, Test file, we still do everything
* correctly
*/
[TestMethod]
public void TestOnARealFile()
{
HSSFWorkbook workbook = HSSFTestDataSamples.OpenSampleWorkbook("DateFormats.xls");
NPOI.SS.UserModel.Sheet sheet = workbook.GetSheetAt(0);
NPOI.HSSF.Model.Workbook wb = workbook.Workbook;
Row row;
Cell cell;
NPOI.SS.UserModel.CellStyle style;
double aug_10_2007 = 39304.0;
// Should have dates in 2nd column
// All of them are the 10th of August
// 2 US dates, 3 UK dates
row = sheet.GetRow(0);
cell = row.GetCell(1);
style = cell.CellStyle;
Assert.AreEqual(aug_10_2007, cell.NumericCellValue, 0.0001);
Assert.AreEqual("d-mmm-yy", style.GetDataFormatString());
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsInternalDateFormat(style.DataFormat));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsADateFormat(style.DataFormat, style.GetDataFormatString()));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsCellDateFormatted(cell));
row = sheet.GetRow(1);
cell = row.GetCell(1);
style = cell.CellStyle;
Assert.AreEqual(aug_10_2007, cell.NumericCellValue, 0.0001);
Assert.IsFalse(NPOI.SS.UserModel.DateUtil.IsInternalDateFormat(cell.CellStyle.DataFormat));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsADateFormat(style.DataFormat, style.GetDataFormatString()));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsCellDateFormatted(cell));
row = sheet.GetRow(2);
cell = row.GetCell(1);
style = cell.CellStyle;
Assert.AreEqual(aug_10_2007, cell.NumericCellValue, 0.0001);
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsInternalDateFormat(cell.CellStyle.DataFormat));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsADateFormat(style.DataFormat, style.GetDataFormatString()));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsCellDateFormatted(cell));
row = sheet.GetRow(3);
cell = row.GetCell(1);
style = cell.CellStyle;
Assert.AreEqual(aug_10_2007, cell.NumericCellValue, 0.0001);
Assert.IsFalse(NPOI.SS.UserModel.DateUtil.IsInternalDateFormat(cell.CellStyle.DataFormat));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsADateFormat(style.DataFormat, style.GetDataFormatString()));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsCellDateFormatted(cell));
row = sheet.GetRow(4);
cell = row.GetCell(1);
style = cell.CellStyle;
Assert.AreEqual(aug_10_2007, cell.NumericCellValue, 0.0001);
Assert.IsFalse(NPOI.SS.UserModel.DateUtil.IsInternalDateFormat(cell.CellStyle.DataFormat));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsADateFormat(style.DataFormat, style.GetDataFormatString()));
Assert.IsTrue(NPOI.SS.UserModel.DateUtil.IsCellDateFormatted(cell));
}
[TestMethod]
public void TestDateBug_2Excel()
{
Assert.AreEqual(59.0, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(1900, CALENDAR_FEBRUARY, 28), false), 1);
Assert.AreEqual(61.0, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(1900, CALENDAR_MARCH, 1), false), 1);
Assert.AreEqual(37315.00, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(2002, CALENDAR_FEBRUARY, 28), false), 1);
Assert.AreEqual(37316.00, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(2002, CALENDAR_MARCH, 1), false), 1);
Assert.AreEqual(37257.00, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(2002, CALENDAR_JANUARY, 1), false), 1);
Assert.AreEqual(38074.00, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(2004, CALENDAR_MARCH, 28), false), 1);
}
[TestMethod]
public void TestDateBug_2Java()
{
Assert.AreEqual(new DateTime(1900, CALENDAR_FEBRUARY, 28), NPOI.SS.UserModel.DateUtil.GetJavaDate(59.0, false));
Assert.AreEqual(new DateTime(1900, CALENDAR_MARCH, 1), NPOI.SS.UserModel.DateUtil.GetJavaDate(61.0, false));
Assert.AreEqual(new DateTime(2002, CALENDAR_FEBRUARY, 28), NPOI.SS.UserModel.DateUtil.GetJavaDate(37315.00, false));
Assert.AreEqual(new DateTime(2002, CALENDAR_MARCH, 1), NPOI.SS.UserModel.DateUtil.GetJavaDate(37316.00, false));
Assert.AreEqual(new DateTime(2002, CALENDAR_JANUARY, 1), NPOI.SS.UserModel.DateUtil.GetJavaDate(37257.00, false));
Assert.AreEqual(new DateTime(2004, CALENDAR_MARCH, 28), NPOI.SS.UserModel.DateUtil.GetJavaDate(38074.00, false));
}
[TestMethod]
public void TestDate1904()
{
Assert.AreEqual(new DateTime(1904, CALENDAR_JANUARY, 2), NPOI.SS.UserModel.DateUtil.GetJavaDate(1.0, true));
Assert.AreEqual(new DateTime(1904, CALENDAR_JANUARY, 1), NPOI.SS.UserModel.DateUtil.GetJavaDate(0.0, true));
Assert.AreEqual(0.0, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(1904, CALENDAR_JANUARY, 1), true), 0.00001);
Assert.AreEqual(1.0, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(1904, CALENDAR_JANUARY, 2), true), 0.00001);
Assert.AreEqual(new DateTime(1998, CALENDAR_JULY, 5), NPOI.SS.UserModel.DateUtil.GetJavaDate(35981, false));
Assert.AreEqual(new DateTime(1998, CALENDAR_JULY, 5), NPOI.SS.UserModel.DateUtil.GetJavaDate(34519, true));
Assert.AreEqual(35981.0, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(1998, CALENDAR_JULY, 5), false), 0.00001);
Assert.AreEqual(34519.0, NPOI.SS.UserModel.DateUtil.GetExcelDate(new DateTime(1998, CALENDAR_JULY, 5), true), 0.00001);
}
/**
* Check if NPOI.SS.UserModel.DateUtil.GetAbsoluteDay works as advertised.
*/
[TestMethod]
public void TestAbsoluteDay()
{
// 1 Jan 1900 is 1 day after 31 Dec 1899
DateTime calendar = new DateTime(1900, 1, 1);
Assert.AreEqual(1, NPOI.SS.UserModel.DateUtil.AbsoluteDay(calendar, false), "Checking absolute day (1 Jan 1900)");
// 1 Jan 1901 is 366 days after 31 Dec 1899
calendar = new DateTime(1901, 1, 1);
Assert.AreEqual(366, NPOI.SS.UserModel.DateUtil.AbsoluteDay(calendar, false), "Checking absolute day (1 Jan 1901)");
}
[TestMethod]
public void TestConvertTime()
{
double delta = 1E-7; // a couple of digits more accuracy than strictly required
Assert.AreEqual(0.5, NPOI.SS.UserModel.DateUtil.ConvertTime("12:00"), delta);
Assert.AreEqual(2.0 / 3, NPOI.SS.UserModel.DateUtil.ConvertTime("16:00"), delta);
Assert.AreEqual(0.0000116, NPOI.SS.UserModel.DateUtil.ConvertTime("0:00:01"), delta);
Assert.AreEqual(0.7330440, NPOI.SS.UserModel.DateUtil.ConvertTime("17:35:35"), delta);
}
[TestMethod]
public void TestParseDate()
{
Assert.AreEqual(new DateTime(2008, 8, 3), NPOI.SS.UserModel.DateUtil.ParseYYYYMMDDDate("2008/08/03"));
Assert.AreEqual(new DateTime(1994, 5, 1), NPOI.SS.UserModel.DateUtil.ParseYYYYMMDDDate("1994/05/01"));
}
/**
* Ensure that date values *with* a fractional portion get the right time of day
*/
[TestMethod]
public void TestConvertDateTime()
{
// Excel day 30000 is date 18-Feb-1982
// 0.7 corresponds to time 16:48:00
DateTime actual = NPOI.SS.UserModel.DateUtil.GetJavaDate(30000.7);
DateTime expected = new DateTime(1982, 2, 18, 16, 48, 0);
Assert.AreEqual(expected, actual);
}
}
}
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