public void SerializeShouldChangeNonUTCDates()
{
DateTime localDateTime = new DateTime(2008, 1, 1, 1, 1, 1, 0, DateTimeKind.Local);
DateTimeTestClass c = new DateTimeTestClass();
c.DateTimeField = localDateTime;
c.PreField = "Pre";
c.PostField = "Post";
string json = JsonConvert.SerializeObject(c, new IsoDateTimeConverter() { DateTimeStyles = DateTimeStyles.AssumeUniversal }); //note that this fails without the Utc converter...
c.DateTimeField = new DateTime(2008, 1, 1, 1, 1, 1, 0, DateTimeKind.Utc);
string json2 = JsonConvert.SerializeObject(c, new IsoDateTimeConverter() { DateTimeStyles = DateTimeStyles.AssumeUniversal });
TimeSpan offset = localDateTime.GetUtcOffset();
// if the current timezone is utc then local already equals utc
if (offset == TimeSpan.Zero)
Assert.Equal(json, json2);
else
Assert.NotEqual(json, json2);
}
public void SerializeUTC()
{
DateTimeTestClass c = new DateTimeTestClass();
c.DateTimeField = new DateTime(2008, 12, 12, 12, 12, 12, 0, DateTimeKind.Utc).ToLocalTime();
c.DateTimeOffsetField = new DateTime(2008, 12, 12, 12, 12, 12, 0, DateTimeKind.Utc).ToLocalTime();
c.PreField = "Pre";
c.PostField = "Post";
string json = JsonConvert.SerializeObject(c, new IsoDateTimeConverter() { DateTimeStyles = DateTimeStyles.AssumeUniversal });
Assert.Equal(@"{""PreField"":""Pre"",""DateTimeField"":""2008-12-12T12:12:12Z"",""DateTimeOffsetField"":""2008-12-12T12:12:12+00:00"",""PostField"":""Post""}", json);
//test the other edge case too
c.DateTimeField = new DateTime(2008, 1, 1, 1, 1, 1, 0, DateTimeKind.Utc).ToLocalTime();
c.DateTimeOffsetField = new DateTime(2008, 1, 1, 1, 1, 1, 0, DateTimeKind.Utc).ToLocalTime();
c.PreField = "Pre";
c.PostField = "Post";
json = JsonConvert.SerializeObject(c, new IsoDateTimeConverter() { DateTimeStyles = DateTimeStyles.AssumeUniversal });
Assert.Equal(@"{""PreField"":""Pre"",""DateTimeField"":""2008-01-01T01:01:01Z"",""DateTimeOffsetField"":""2008-01-01T01:01:01+00:00"",""PostField"":""Post""}", json);
}