C# DateTimeOffset.AddDays方法代码示例

        public void TestOffset()
        {
            var testScheduler = new TestScheduler();
            var recorder = testScheduler.CreateObserver<int>();

            var notifier = new ScheduledNotifier<int>(testScheduler);
            notifier.Subscribe(recorder);

            var origin = new DateTimeOffset(1999, 1, 1, 1, 1, 1, TimeSpan.Zero);

            notifier.Report(1);
            notifier.Report(2);
            notifier.Report(3, origin);
            notifier.Report(4, origin.AddDays(10));
            notifier.Report(5, origin.AddYears(1));
            notifier.Report(6);

            testScheduler.Start();

            recorder.Messages.Is(
                OnNext(1, 1),
                OnNext(1, 2),
                OnNext(1, 6),
                OnNext(origin.Ticks, 3),
                OnNext(origin.AddDays(10).Ticks, 4),
                OnNext(origin.AddYears(1).Ticks, 5));
        }

        public void SetUp()
        {
            fileSystem = Substitute.For<ICalamariFileSystem>();
            deploymentJournal = Substitute.For<IDeploymentJournal>();
            clock = Substitute.For<IClock>();
            retentionPolicy = new RetentionPolicy(fileSystem, deploymentJournal, clock);

            now = new DateTimeOffset(new DateTime(2015, 01, 15), new TimeSpan(0, 0, 0));
            clock.GetUtcTime().Returns(now);

            // Deployed 4 days prior to 'now'
            fourDayOldDeployment = new JournalEntry("fourDayOld", "blah", "blah", "blah", "blah", policySet1,
                now.AddDays(-4).LocalDateTime,
                "C:\\packages\\Acme.1.0.0.nupkg", "C:\\Applications\\Acme.1.0.0", null, true);

            // Deployed 3 days prior to 'now'
            threeDayOldDeployment = new JournalEntry("threeDayOld", "blah", "blah", "blah", "blah", policySet1,
                now.AddDays(-3).LocalDateTime,
                "C:\\packages\\Acme.1.1.0.nupkg", "C:\\Applications\\Acme.1.1.0", null, true);

            // Deployed 2 days prior to 'now'
            twoDayOldDeployment = new JournalEntry("twoDayOld", "blah", "blah", "blah", "blah", policySet1,
                now.AddDays(-2).LocalDateTime,
                "C:\\packages\\Acme.1.2.0.nupkg", "C:\\Applications\\Acme.1.2.0", null, true);

            // Deployed (unsuccessfully) 1 day prior to 'now'
            oneDayOldUnsuccessfulDeployment = new JournalEntry("oneDayOldUnsuccessful", "blah", "blah", "blah", "blah", policySet1,
                now.AddDays(-1).LocalDateTime,
                "C:\\packages\\Acme.1.3.0.nupkg", "C:\\Applications\\Acme.1.3.0", null, false);

            // Deployed 5 days prior to 'now', but has a different policy-set
            fiveDayOldNonMatchingDeployment = new JournalEntry("fiveDayOld", "blah", "blah", "blah", "blah", policySet2,
                now.AddDays(-5).LocalDateTime,
                "C:\\packages\\Beta.1.0.0.nupkg", "C:\\Applications\\Beta.1.0.0", null, true);

            var journalEntries = new List<JournalEntry>
            {
                fiveDayOldNonMatchingDeployment,
                fourDayOldDeployment,
                threeDayOldDeployment,
                twoDayOldDeployment,
                oneDayOldUnsuccessfulDeployment
            };

            deploymentJournal.GetAllJournalEntries().Returns(journalEntries);

            foreach (var journalEntry in journalEntries)
            {
                fileSystem.FileExists(journalEntry.ExtractedFrom).Returns(true);
                fileSystem.DirectoryExists(journalEntry.ExtractedTo).Returns(true);
            }
        }

    public void From_FromFixedDateTime_Tests(int value)
    {
        var originalPointInTime = new DateTimeOffset(1976, 12, 31, 17, 0, 0, 0, TimeSpan.Zero);

        Assert.AreEqual(value.Years().From(originalPointInTime), originalPointInTime.AddYears(value));
        Assert.AreEqual(value.Months().From(originalPointInTime), originalPointInTime.AddMonths(value));
        Assert.AreEqual(value.Weeks().From(originalPointInTime), originalPointInTime.AddDays(value*DaysPerWeek));
        Assert.AreEqual(value.Days().From(originalPointInTime), originalPointInTime.AddDays(value));

        Assert.AreEqual(value.Hours().From(originalPointInTime), originalPointInTime.AddHours(value));
        Assert.AreEqual(value.Minutes().From(originalPointInTime), originalPointInTime.AddMinutes(value));
        Assert.AreEqual(value.Seconds().From(originalPointInTime), originalPointInTime.AddSeconds(value));
        Assert.AreEqual(value.Milliseconds().From(originalPointInTime), originalPointInTime.AddMilliseconds(value));
        Assert.AreEqual(value.Ticks().From(originalPointInTime), originalPointInTime.AddTicks(value));
    }

		public async Task Synchronize_WhenLastSynchronizationTimeIsMoreRecentThanFileModificationDate_ShouldNotCallTranscode(
			double daysToAdd,
			[Frozen]Mock<ISynchronizedFilesRepository> synchronizedFileRepository,
			[Frozen]Mock<IFileTranscoder> fileTranscoder,
			MusicMirrorConfiguration config,
			FileSynchronizer sut,
			SourceFilePath sourceFile,
			TargetFilePath targetFile)
		{
			//arrange
			var lastWriteTime = new DateTimeOffset(2015, 04, 01, 0, 0, 0, TimeSpan.Zero);
			var lastSyncTime = lastWriteTime.AddDays(daysToAdd);
			sourceFile.LastWriteTime = lastWriteTime;
			synchronizedFileRepository.Setup(s => s.GetMirroredFilePath(It.IsAny<CancellationToken>(), sourceFile.File)).ReturnsTask(targetFile.File);
			synchronizedFileRepository.Setup(s => s.GetLastSynchronization(It.IsAny<CancellationToken>(), sourceFile.File)).ReturnsTask(lastSyncTime);
			//act
			await sut.Synchronize(CancellationToken.None, sourceFile);
			//assert
			fileTranscoder.Verify(f =>
				f.Transcode(
					It.IsAny<CancellationToken>(),
					sourceFile.File,
					AudioFormat.Flac,
					It.Is((DirectoryInfo d) => d.FullName.Equals(targetFile.File.DirectoryName))),
				Times.Never());
		}

        public async Task UsesCustomPropertyNames()
        {
            try
            {
                await this.ThrowAsync();
            }
            catch (Exception e)
            {
                var timestamp = new DateTimeOffset(2013, 05, 28, 22, 10, 20, 666, TimeSpan.FromHours(10));
                var messageTemplate = "{Song}++";
                var template = new MessageTemplateParser().Parse(messageTemplate);
                using (var sink = new ElasticsearchSink(_options))
                {
                    var properties = new List<LogEventProperty>
                    {
                        new LogEventProperty("Song", new ScalarValue("New Macabre")), 
                        new LogEventProperty("Complex", new ScalarValue(new { A = 1, B = 2 }))
                    };
                    var logEvent = new LogEvent(timestamp, LogEventLevel.Information, e, template, properties);
                    //one off
                    sink.Emit(logEvent);

                    sink.Emit(logEvent);
                    logEvent = new LogEvent(timestamp.AddDays(2), LogEventLevel.Information, e, template, properties);
                    sink.Emit(logEvent);
                }
                var bulkJsonPieces = this.AssertSeenHttpPosts(_seenHttpPosts, 4);
                bulkJsonPieces[0].Should().Contain(@"""_index"":""logstash-2013.05.28");
                bulkJsonPieces[1].Should().Contain("New Macabre");
                bulkJsonPieces[1].Should().NotContain("Properties\"");
                bulkJsonPieces[1].Should().Contain("fields\":{");
                bulkJsonPieces[1].Should().Contain("@timestamp");
                bulkJsonPieces[2].Should().Contain(@"""_index"":""logstash-2013.05.30");
            }
        }

 public async Task UsesCustomPropertyNames()
 {
     try
     {
         await new HttpClient().GetStringAsync("http://i.do.not.exist");
     }
     catch (Exception e)
     {
         var timestamp = new DateTimeOffset(2013, 05, 28, 22, 10, 20, 666, TimeSpan.FromHours(10));
         var messageTemplate = "{Song}++";
         var template = new MessageTemplateParser().Parse(messageTemplate);
         using (var sink = new ElasticsearchSink(_options))
         {
             var properties = new List<LogEventProperty>
             {
                 new LogEventProperty("Song", new ScalarValue("New Macabre")), 
                 new LogEventProperty("Complex", new ScalarValue(new { A = 1, B = 2 }))
             };
             var logEvent = new LogEvent(timestamp, LogEventLevel.Information, e, template, properties);
             sink.Emit(logEvent);
             logEvent = new LogEvent(timestamp.AddDays(2), LogEventLevel.Information, e, template, properties);
             sink.Emit(logEvent);
         }
         _seenHttpPosts.Should().NotBeEmpty().And.HaveCount(1);
         var json = _seenHttpPosts.First();
         var bulkJsonPieces = json.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
         bulkJsonPieces.Should().HaveCount(4);
         bulkJsonPieces[0].Should().Contain(@"""_index"":""logstash-2013.05.28");
         bulkJsonPieces[1].Should().Contain("New Macabre");
         bulkJsonPieces[1].Should().NotContain("Properties\"");
         bulkJsonPieces[1].Should().Contain("fields\":{");
         bulkJsonPieces[1].Should().Contain("@timestamp");
         bulkJsonPieces[2].Should().Contain(@"""_index"":""logstash-2013.05.30");
     }
 }

		internal long GetNextOccurrence()
		{
			DateTimeOffset now = _ClockSource.Now;
			DateTimeOffset next;

			switch (this.Periodicity)
			{
				case PeriodicityType.Hourly:
					next = new DateTimeOffset(now.Year, now.Month, now.Day, now.Hour, this.MinuteOffset, 0, now.Offset);

					if (next <= now)
					{
						next = next.AddHours(1.0);
					}

					break;

				case PeriodicityType.Daily:
					next = new DateTimeOffset(now.Year, now.Month, now.Day, this.HourOffset, this.MinuteOffset, 0, now.Offset);

					if (next <= now)
					{
						next = next.AddDays(1.0);
					}

					break;

				default:
					goto case PeriodicityType.Hourly;
			}

			return next.ToUniversalTime().Ticks;
		}

 public void TestWeekDayExclusion()
 {
     // this is friday
     DateTimeOffset excluded = new DateTimeOffset(2007, 8, 3, 0, 0, 0, TimeSpan.Zero);
     cal.SetDayExcluded(DayOfWeek.Friday, true);
     // next monday should be next possible
     Assert.AreEqual(excluded.AddDays(3), cal.GetNextIncludedTimeUtc(excluded));
 }

        public async Task<IEnumerable<Meeting>> GetCalendarEvents(DateTimeOffset date)
        {
            string uri = BuildCalendarUri(date, date.AddDays(1));

            var items = await new HttpHelper().GetItemsAsync<Meeting>(uri);

            return items ?? new List<Meeting>();
        }

        public static int GetIdOfFirstPostOfDay(DateTimeOffset day)
        {
            var items = Query(
                $"/2.2/posts",
                $"pagesize=1&order=asc&min={day.ToUnixTimeSeconds()}&max={day.AddDays(1).ToUnixTimeSeconds()}&sort=creation").Result;

            return items[0].post_id;
        }

        public async Task CreateReturnsEditView_When_ActivityStartDateBeforeCampaignStartDate()
        {
            var campaignStartDate = new DateTimeOffset(new DateTime(1900, 1, 1));
            var campaignEndDate = campaignStartDate.AddDays(4);
            var sut = GetActivityController(campaignStartDate, campaignEndDate);
            var activityModel = new ActivityDetailModel
            {
                EndDateTime = campaignStartDate,
                StartDateTime = campaignStartDate.AddDays(-1)
            };

            var result = (ViewResult)await sut.Create(1, activityModel, null);

            Assert.Equal("Edit", result.ViewName);
            var errors = sut.ModelState.GetErrorMessages();
            Assert.Equal(1, errors.Count);
            Assert.Equal("Start date cannot be earlier than the campaign start date " + campaignStartDate.ToString("d"), errors[0]);
        }

        public void CanAddDaysAcrossDstTransition_StartWithMismatchedOffset()
        {
            var tz = TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time");
            var dto = new DateTimeOffset(2015, 3, 8, 4, 0, 0, TimeSpan.FromHours(-4));
            var result = dto.AddDays(1, tz);

            var expected = new DateTimeOffset(2015, 3, 9, 0, 0, 0, TimeSpan.FromHours(-7));
            Assert.Equal(expected, result);
            Assert.Equal(expected.Offset, result.Offset);
        }

        public void CanAddDaysAcrossDstTransition_LandInOverlap()
        {
            var tz = TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time");
            var dto = new DateTimeOffset(2015, 10, 31, 1, 30, 0, TimeSpan.FromHours(-7));
            var result = dto.AddDays(1, tz);

            var expected = new DateTimeOffset(2015, 11, 1, 1, 30, 0, TimeSpan.FromHours(-7));
            Assert.Equal(expected, result);
            Assert.Equal(expected.Offset, result.Offset);
        }

        private static void InitCustomers()
        {
            DateTimeOffset dto = new DateTimeOffset(2015, 1, 1, 1, 2, 3, 4, TimeSpan.Zero);
            _customers = Enumerable.Range(1, 5).Select(e =>
                new DCustomer
                {
                    Id = e,
                    DateTime = dto.AddYears(e).DateTime,
                    Offset = e % 2 == 0 ? dto.AddMonths(e) : dto.AddDays(e).AddMilliseconds(10),
                    Date = e % 2 == 0 ? dto.AddDays(e).Date : dto.AddDays(-e).Date,
                    TimeOfDay = e % 3 == 0 ? dto.AddHours(e).TimeOfDay : dto.AddHours(-e).AddMilliseconds(10).TimeOfDay,

                    NullableDateTime = e % 2 == 0 ? (DateTime?)null : dto.AddYears(e).DateTime,
                    NullableOffset = e % 3 == 0 ? (DateTimeOffset?)null : dto.AddMonths(e),
                    NullableDate = e % 2 == 0 ? (Date?)null : dto.AddDays(e).Date,
                    NullableTimeOfDay = e % 3 == 0 ? (TimeOfDay?)null : dto.AddHours(e).TimeOfDay,

                    DateTimes = new [] { dto.AddYears(e).DateTime, dto.AddMonths(e).DateTime },
                    Offsets = new [] { dto.AddMonths(e), dto.AddDays(e) },
                    Dates = new [] { (Date)dto.AddYears(e).Date, (Date)dto.AddMonths(e).Date },
                    TimeOfDays = new [] { (TimeOfDay)dto.AddHours(e).TimeOfDay, (TimeOfDay)dto.AddMinutes(e).TimeOfDay },

                    NullableDateTimes = new [] { dto.AddYears(e).DateTime, (DateTime?)null, dto.AddMonths(e).DateTime },
                    NullableOffsets = new [] { dto.AddMonths(e), (DateTimeOffset?)null, dto.AddDays(e) },
                    NullableDates = new [] { (Date)dto.AddYears(e).Date, (Date?)null, (Date)dto.AddMonths(e).Date },
                    NullableTimeOfDays = new [] { (TimeOfDay)dto.AddHours(e).TimeOfDay, (TimeOfDay?)null, (TimeOfDay)dto.AddMinutes(e).TimeOfDay },

                }).ToList();
        }

    public static void TestAddition()
    {
        DateTimeOffset dt = new DateTimeOffset(new DateTime(1986, 8, 15, 10, 20, 5, 70));
        Assert.Equal(17, dt.AddDays(2).Day);
        Assert.Equal(13, dt.AddDays(-2).Day);

        Assert.Equal(10, dt.AddMonths(2).Month);
        Assert.Equal(6, dt.AddMonths(-2).Month);

        Assert.Equal(1996, dt.AddYears(10).Year);
        Assert.Equal(1976, dt.AddYears(-10).Year);

        Assert.Equal(13, dt.AddHours(3).Hour);
        Assert.Equal(7, dt.AddHours(-3).Hour);

        Assert.Equal(25, dt.AddMinutes(5).Minute);
        Assert.Equal(15, dt.AddMinutes(-5).Minute);

        Assert.Equal(35, dt.AddSeconds(30).Second);
        Assert.Equal(2, dt.AddSeconds(-3).Second);

        Assert.Equal(80, dt.AddMilliseconds(10).Millisecond);
        Assert.Equal(60, dt.AddMilliseconds(-10).Millisecond);
    }