public void DateTimeOD_NormalizeApplicationShortDateFormat_AllCultures()
{
bool isTwoDigitYearTested = false;
string strYearFormat = "yyyy";
foreach (CultureInfo culture in CultureInfo.GetCultures(CultureTypes.AllCultures))
{
Application.CurrentCulture = culture;
CultureInfo.DefaultThreadCurrentCulture = Application.CurrentCulture;
CultureInfo.DefaultThreadCurrentUICulture = Application.CurrentCulture;
if (!isTwoDigitYearTested && (Regex.IsMatch(Application.CurrentCulture.DateTimeFormat.ShortDatePattern, "^y{2}[^y]") ||
Regex.IsMatch(Application.CurrentCulture.DateTimeFormat.ShortDatePattern, "[^y]y{2}[^y]") ||
Regex.IsMatch(Application.CurrentCulture.DateTimeFormat.ShortDatePattern, "[^y]y{2}$")))
{
isTwoDigitYearTested = true;
}
DateTimeOD.NormalizeApplicationShortDateFormat();
Assert.IsTrue(Application.CurrentCulture.DateTimeFormat.ShortDatePattern.Contains(strYearFormat));
Assert.IsTrue(CultureInfo.DefaultThreadCurrentCulture.DateTimeFormat.ShortDatePattern.Contains(strYearFormat));
Assert.IsTrue(CultureInfo.DefaultThreadCurrentUICulture.DateTimeFormat.ShortDatePattern.Contains(strYearFormat));
}
Assert.IsTrue(isTwoDigitYearTested);
}