public void TestDateTime()
{
//字符串 To DateTime
var now = DateTime.Now.Date.AddHours(8).AddMinutes(7).AddSeconds(6);
var date1 = DateTimeUtility.ToDateTimeFormString(now.ToString("yyyyMMdd"));
Assert.AreEqual(date1, now.Date);
var date2 = DateTimeUtility.ToDateTimeFormString(now.ToString("yyyyMMddHHmmss"));
Assert.AreEqual(date2, now);
var date3 = DateTimeUtility.ToDateTimeFormString("2020-02-02 20:20:20", "yyyy-MM-dd HH:mm:ss");
Assert.AreEqual(date3, new DateTime(2020, 2, 2, 20, 20, 20));
//DateTime To 字符串
var dateStr1 = now.ToStandardStr();
Assert.AreEqual(dateStr1, now.ToString("yyyy-MM-dd HH:mm:ss"));
var dateStr2 = now.ToDateStr();
Assert.AreEqual(dateStr2, now.ToString("yyyy-MM-dd"));
var dateStr3 = now.ToTimeStr("*");
Assert.AreEqual(dateStr3, now.ToString("HH*mm*ss"));
//时间戳转换
var unixStamp = 1580646020L;
var jsStamp = 1580646020000L;
var date = new DateTime(2020, 2, 2, 20, 20, 20);
var reDate1 = DateTimeUtility.FromUnixTimestamp(unixStamp);
Assert.AreEqual(reDate1, date);
var reDate2 = DateTimeUtility.FromJSTimestamp(jsStamp);
Assert.AreEqual(reDate2, date);
var reUnixStamp = DateTimeUtility.ToUnixTimestamp(date);
Assert.AreEqual(reUnixStamp, unixStamp);
var reJsStamp = DateTimeUtility.ToJSTimestamp(date);
Assert.AreEqual(reJsStamp, jsStamp);
//日期计算
var week = date.WeekOfMonth();
Assert.AreEqual(week, 1);
}