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#region License
// The PostgreSQL License
//
// Copyright (C) 2015 The Npgsql Development Team
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#endregion
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Globalization;
using System.Linq;
using System.Text;
using Npgsql;
using NpgsqlTypes;
using NUnit.Framework;
using NUnit.Framework.Constraints;
namespace Npgsql.Tests.Types
{
/// <summary>
/// Tests on PostgreSQL date/time types
/// </summary>
/// <remarks>
/// http://www.postgresql.org/docs/current/static/datatype-datetime.html
/// </remarks>
class DateTimeTests : TestBase
{
#region Date
[Test]
public void Date()
{
var dateTime = new DateTime(2002, 3, 4, 0, 0, 0, 0, DateTimeKind.Unspecified);
var npgsqlDate = new NpgsqlDate(dateTime);
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3", Conn))
{
var p1 = new NpgsqlParameter("p1", NpgsqlDbType.Date) { Value = npgsqlDate };
var p2 = new NpgsqlParameter("p2", DbType.Date) { Value = npgsqlDate.ToString() };
var p3 = new NpgsqlParameter { ParameterName = "p3", Value = npgsqlDate };
Assert.That(p3.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Date));
Assert.That(p3.DbType, Is.EqualTo(DbType.Date));
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
cmd.Parameters.Add(p3);
using (var reader = cmd.ExecuteReader())
{
reader.Read();
for (var i = 0; i < cmd.Parameters.Count; i++)
{
// Regular type (DateTime)
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof (DateTime)));
Assert.That(reader.GetDateTime(i), Is.EqualTo(dateTime));
Assert.That(reader.GetFieldValue<DateTime>(i), Is.EqualTo(dateTime));
Assert.That(reader[i], Is.EqualTo(dateTime));
Assert.That(reader.GetValue(i), Is.EqualTo(dateTime));
// Provider-specific type (NpgsqlDate)
Assert.That(reader.GetDate(i), Is.EqualTo(npgsqlDate));
Assert.That(reader.GetProviderSpecificFieldType(i), Is.EqualTo(typeof (NpgsqlDate)));
Assert.That(reader.GetProviderSpecificValue(i), Is.EqualTo(npgsqlDate));
Assert.That(reader.GetFieldValue<NpgsqlDate>(i), Is.EqualTo(npgsqlDate));
}
}
}
}
static readonly TestCaseData[] DateSpecialCases = {
new TestCaseData(NpgsqlDate.Infinity).SetName("Infinity"),
new TestCaseData(NpgsqlDate.NegativeInfinity).SetName("NegativeInfinity"),
new TestCaseData(new NpgsqlDate(-5, 3, 3)).SetName("BC"),
};
[Test, TestCaseSource("DateSpecialCases")]
public void DateSpecial(NpgsqlDate value)
{
using (var cmd = new NpgsqlCommand("SELECT @p", Conn)) {
cmd.Parameters.Add(new NpgsqlParameter { ParameterName = "p", Value = value });
using (var reader = cmd.ExecuteReader()) {
reader.Read();
Assert.That(reader.GetProviderSpecificValue(0), Is.EqualTo(value));
Assert.That(() => reader.GetDateTime(0), Throws.Exception);
}
Assert.That(ExecuteScalar("SELECT 1"), Is.EqualTo(1));
}
}
[Test, Description("Makes sure that when ConvertInfinityDateTime is true, infinity values are properly converted")]
public void DateConvertInfinity()
{
using (var conn = new NpgsqlConnection(ConnectionString + ";ConvertInfinityDateTime=true"))
{
conn.Open();
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2", conn)) {
cmd.Parameters.AddWithValue("p1", NpgsqlDbType.Date, DateTime.MaxValue);
cmd.Parameters.AddWithValue("p2", NpgsqlDbType.Date, DateTime.MinValue);
using (var reader = cmd.ExecuteReader()) {
reader.Read();
Assert.That(reader.GetFieldValue<NpgsqlDate>(0), Is.EqualTo(NpgsqlDate.Infinity));
Assert.That(reader.GetFieldValue<NpgsqlDate>(1), Is.EqualTo(NpgsqlDate.NegativeInfinity));
Assert.That(reader.GetDateTime(0), Is.EqualTo(DateTime.MaxValue));
Assert.That(reader.GetDateTime(1), Is.EqualTo(DateTime.MinValue));
}
}
}
}
#endregion
#region Time
[Test]
public void Time()
{
var expected = new TimeSpan(0, 10, 45, 34, 500);
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2", Conn))
{
cmd.Parameters.Add(new NpgsqlParameter("p1", NpgsqlDbType.Time) { Value = expected });
cmd.Parameters.Add(new NpgsqlParameter("p2", DbType.Time) { Value = expected });
using (var reader = cmd.ExecuteReader())
{
reader.Read();
for (var i = 0; i < cmd.Parameters.Count; i++)
{
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof (TimeSpan)));
Assert.That(reader.GetTimeSpan(i), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<TimeSpan>(i), Is.EqualTo(expected));
Assert.That(reader[i], Is.EqualTo(expected));
Assert.That(reader.GetValue(i), Is.EqualTo(expected));
}
}
}
}
#endregion
#region Time with timezone
[Test]
[MonoIgnore]
public void TimeTz()
{
var tzOffset = TimeZoneInfo.Local.BaseUtcOffset;
if (tzOffset == TimeSpan.Zero)
TestUtil.IgnoreExceptOnBuildServer("Test cannot run when machine timezone is UTC");
// Note that the date component of the below is ignored
var dto = new DateTimeOffset(5, 5, 5, 13, 3, 45, 510, tzOffset);
var dtUtc = new DateTime(dto.Year, dto.Month, dto.Day, dto.Hour, dto.Minute, dto.Second, dto.Millisecond, DateTimeKind.Utc) - tzOffset;
var dtLocal = new DateTime(dto.Year, dto.Month, dto.Day, dto.Hour, dto.Minute, dto.Second, dto.Millisecond, DateTimeKind.Local);
var dtUnspecified = new DateTime(dto.Year, dto.Month, dto.Day, dto.Hour, dto.Minute, dto.Second, dto.Millisecond, DateTimeKind.Unspecified);
var ts = dto.TimeOfDay;
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3, @p4, @p5", Conn))
{
cmd.Parameters.AddWithValue("p1", NpgsqlDbType.TimeTZ, dto);
cmd.Parameters.AddWithValue("p2", NpgsqlDbType.TimeTZ, dtUtc);
cmd.Parameters.AddWithValue("p3", NpgsqlDbType.TimeTZ, dtLocal);
cmd.Parameters.AddWithValue("p4", NpgsqlDbType.TimeTZ, dtUnspecified);
cmd.Parameters.AddWithValue("p5", NpgsqlDbType.TimeTZ, ts);
Assert.That(cmd.Parameters.All(p => p.DbType == DbType.Object));
using (var reader = cmd.ExecuteReader())
{
reader.Read();
for (var i = 0; i < cmd.Parameters.Count; i++)
{
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof(DateTimeOffset)));
Assert.That(reader.GetFieldValue<DateTimeOffset>(i), Is.EqualTo(new DateTimeOffset(1, 1, 1, dto.Hour, dto.Minute, dto.Second, dto.Millisecond, dto.Offset)));
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof(DateTimeOffset)));
Assert.That(reader.GetFieldValue<DateTime>(i).Kind, Is.EqualTo(DateTimeKind.Local));
Assert.That(reader.GetFieldValue<DateTime>(i), Is.EqualTo(reader.GetFieldValue<DateTimeOffset>(i).LocalDateTime));
Assert.That(reader.GetFieldValue<TimeSpan>(i), Is.EqualTo(reader.GetFieldValue<DateTimeOffset>(i).LocalDateTime.TimeOfDay));
}
}
}
}
#endregion
#region Timestamp
static readonly TestCaseData[] TimeStampCases = {
new TestCaseData(new DateTime(1998, 4, 12, 13, 26, 38)).SetName("Pre2000"),
new TestCaseData(new DateTime(2015, 1, 27, 8, 45, 12, 345)).SetName("Post2000"),
new TestCaseData(new DateTime(2013, 7, 25)).SetName("DateOnly"),
};
[Test, TestCaseSource("TimeStampCases")]
public void Timestamp(DateTime dateTime)
{
var npgsqlTimeStamp = new NpgsqlDateTime(dateTime.Ticks);
var offset = TimeSpan.FromHours(2);
var dateTimeOffset = new DateTimeOffset(dateTime, offset);
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3, @p4, @p5, @p6", Conn))
{
var p1 = new NpgsqlParameter("p1", NpgsqlDbType.Timestamp);
var p2 = new NpgsqlParameter("p2", DbType.DateTime);
var p3 = new NpgsqlParameter("p3", DbType.DateTime2);
var p4 = new NpgsqlParameter { ParameterName = "p4", Value = npgsqlTimeStamp };
var p5 = new NpgsqlParameter { ParameterName = "p5", Value = dateTime };
var p6 = new NpgsqlParameter("p6", NpgsqlDbType.Timestamp);
Assert.That(p4.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Timestamp));
Assert.That(p4.DbType, Is.EqualTo(DbType.DateTime));
Assert.That(p5.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Timestamp));
Assert.That(p5.DbType, Is.EqualTo(DbType.DateTime));
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
cmd.Parameters.Add(p3);
cmd.Parameters.Add(p4);
cmd.Parameters.Add(p5);
cmd.Parameters.Add(p6);
p1.Value = p2.Value = p3.Value = npgsqlTimeStamp;
p6.Value = dateTimeOffset;
using (var reader = cmd.ExecuteReader())
{
reader.Read();
for (var i = 0; i < cmd.Parameters.Count; i++)
{
// Regular type (DateTime)
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof (DateTime)));
Assert.That(reader.GetDateTime(i), Is.EqualTo(dateTime));
Assert.That(reader.GetDateTime(i).Kind, Is.EqualTo(DateTimeKind.Unspecified));
Assert.That(reader.GetFieldValue<DateTime>(i), Is.EqualTo(dateTime));
Assert.That(reader[i], Is.EqualTo(dateTime));
Assert.That(reader.GetValue(i), Is.EqualTo(dateTime));
// Provider-specific type (NpgsqlTimeStamp)
Assert.That(reader.GetTimeStamp(i), Is.EqualTo(npgsqlTimeStamp));
Assert.That(reader.GetProviderSpecificFieldType(i), Is.EqualTo(typeof (NpgsqlDateTime)));
Assert.That(reader.GetProviderSpecificValue(i), Is.EqualTo(npgsqlTimeStamp));
Assert.That(reader.GetFieldValue<NpgsqlDateTime>(i), Is.EqualTo(npgsqlTimeStamp));
// DateTimeOffset
Assert.That(() => reader.GetFieldValue<DateTimeOffset>(i), Throws.Exception);
}
}
}
}
static readonly TestCaseData[] TimeStampSpecialCases = {
new TestCaseData(NpgsqlDateTime.Infinity).SetName("Infinity"),
new TestCaseData(NpgsqlDateTime.NegativeInfinity).SetName("NegativeInfinity"),
new TestCaseData(new NpgsqlDateTime(-5, 3, 3, 1, 0, 0)).SetName("BC"),
};
[Test, TestCaseSource("TimeStampSpecialCases")]
public void TimeStampSpecial(NpgsqlDateTime value)
{
using (var cmd = new NpgsqlCommand("SELECT @p", Conn)) {
cmd.Parameters.Add(new NpgsqlParameter { ParameterName = "p", Value = value });
using (var reader = cmd.ExecuteReader()) {
reader.Read();
Assert.That(reader.GetProviderSpecificValue(0), Is.EqualTo(value));
Assert.That(() => reader.GetDateTime(0), Throws.Exception);
}
Assert.That(ExecuteScalar("SELECT 1"), Is.EqualTo(1));
}
}
[Test, Description("Makes sure that when ConvertInfinityDateTime is true, infinity values are properly converted")]
public void TimeStampConvertInfinity()
{
using (var conn = new NpgsqlConnection(ConnectionString + ";ConvertInfinityDateTime=true"))
{
conn.Open();
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2", conn))
{
cmd.Parameters.AddWithValue("p1", NpgsqlDbType.Timestamp, DateTime.MaxValue);
cmd.Parameters.AddWithValue("p2", NpgsqlDbType.Timestamp, DateTime.MinValue);
using (var reader = cmd.ExecuteReader())
{
reader.Read();
Assert.That(reader.GetFieldValue<NpgsqlDateTime>(0), Is.EqualTo(NpgsqlDateTime.Infinity));
Assert.That(reader.GetFieldValue<NpgsqlDateTime>(1), Is.EqualTo(NpgsqlDateTime.NegativeInfinity));
Assert.That(reader.GetDateTime(0), Is.EqualTo(DateTime.MaxValue));
Assert.That(reader.GetDateTime(1), Is.EqualTo(DateTime.MinValue));
}
}
}
}
#endregion
#region Timestamp with timezone
[Test]
public void TimestampTz()
{
var tzOffset = TimeZoneInfo.Local.BaseUtcOffset;
if (tzOffset == TimeSpan.Zero)
TestUtil.IgnoreExceptOnBuildServer("Test cannot run when machine timezone is UTC");
var dateTimeUtc = new DateTime(2015, 6, 27, 8, 45, 12, 345, DateTimeKind.Utc);
var dateTimeLocal = dateTimeUtc.ToLocalTime();
var dateTimeUnspecified = new DateTime(dateTimeUtc.Ticks, DateTimeKind.Unspecified);
var nDateTimeUtc = new NpgsqlDateTime(dateTimeUtc);
var nDateTimeLocal = nDateTimeUtc.ToLocalTime();
var nDateTimeUnspecified = new NpgsqlDateTime(nDateTimeUtc.Ticks, DateTimeKind.Unspecified);
var dateTimeOffset = new DateTimeOffset(dateTimeLocal, dateTimeLocal - dateTimeUtc);
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3, @p4, @p5, @p6, @p7, @p8, @p9", Conn))
{
cmd.Parameters.AddWithValue("p1", NpgsqlDbType.TimestampTZ, dateTimeUtc);
cmd.Parameters.AddWithValue("p2", NpgsqlDbType.TimestampTZ, dateTimeLocal);
cmd.Parameters.AddWithValue("p3", NpgsqlDbType.TimestampTZ, dateTimeUnspecified);
cmd.Parameters.AddWithValue("p4", NpgsqlDbType.TimestampTZ, nDateTimeUtc);
cmd.Parameters.AddWithValue("p5", NpgsqlDbType.TimestampTZ, nDateTimeLocal);
cmd.Parameters.AddWithValue("p6", NpgsqlDbType.TimestampTZ, nDateTimeUnspecified);
cmd.Parameters.AddWithValue("p7", dateTimeUtc);
cmd.Parameters.AddWithValue("p8", nDateTimeUtc);
cmd.Parameters.AddWithValue("p9", dateTimeOffset);
using (var reader = cmd.ExecuteReader())
{
reader.Read();
for (var i = 0; i < cmd.Parameters.Count; i++)
{
// Regular type (DateTime)
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof(DateTime)));
Assert.That(reader.GetDateTime(i), Is.EqualTo(dateTimeLocal));
Assert.That(reader.GetFieldValue<DateTime>(i).Kind, Is.EqualTo(DateTimeKind.Local));
Assert.That(reader[i], Is.EqualTo(dateTimeLocal));
Assert.That(reader.GetValue(i), Is.EqualTo(dateTimeLocal));
// Provider-specific type (NpgsqlDateTime)
Assert.That(reader.GetTimeStamp(i), Is.EqualTo(nDateTimeLocal));
Assert.That(reader.GetProviderSpecificFieldType(i), Is.EqualTo(typeof(NpgsqlDateTime)));
Assert.That(reader.GetProviderSpecificValue(i), Is.EqualTo(nDateTimeLocal));
Assert.That(reader.GetFieldValue<NpgsqlDateTime>(i), Is.EqualTo(nDateTimeLocal));
// DateTimeOffset
Assert.That(reader.GetFieldValue<DateTimeOffset>(i), Is.EqualTo(dateTimeOffset.ToUniversalTime()));
}
}
}
Assert.AreEqual(nDateTimeUtc, nDateTimeLocal.ToUniversalTime());
Assert.AreEqual(nDateTimeUtc, new NpgsqlDateTime(nDateTimeLocal.Ticks, DateTimeKind.Unspecified).ToUniversalTime());
Assert.AreEqual(nDateTimeLocal, nDateTimeUnspecified.ToLocalTime());
}
#endregion
#region Interval
[Test]
public void Interval()
{
var expectedNpgsqlInterval = new NpgsqlTimeSpan(1, 2, 3, 4, 5);
var expectedTimeSpan = new TimeSpan(1, 2, 3, 4, 5);
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3", Conn))
{
var p1 = new NpgsqlParameter("p1", NpgsqlDbType.Interval);
var p2 = new NpgsqlParameter("p2", expectedTimeSpan);
var p3 = new NpgsqlParameter("p3", expectedNpgsqlInterval);
Assert.That(p2.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Interval));
Assert.That(p2.DbType, Is.EqualTo(DbType.Object));
Assert.That(p3.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Interval));
Assert.That(p3.DbType, Is.EqualTo(DbType.Object));
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
cmd.Parameters.Add(p3);
p1.Value = expectedNpgsqlInterval;
using (var reader = cmd.ExecuteReader())
{
reader.Read();
// Regular type (TimeSpan)
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof (TimeSpan)));
Assert.That(reader.GetTimeSpan(0), Is.EqualTo(expectedTimeSpan));
Assert.That(reader.GetFieldValue<TimeSpan>(0), Is.EqualTo(expectedTimeSpan));
Assert.That(reader[0], Is.EqualTo(expectedTimeSpan));
Assert.That(reader.GetValue(0), Is.EqualTo(expectedTimeSpan));
// Provider-specific type (NpgsqlInterval)
Assert.That(reader.GetInterval(0), Is.EqualTo(expectedNpgsqlInterval));
Assert.That(reader.GetProviderSpecificFieldType(0), Is.EqualTo(typeof (NpgsqlTimeSpan)));
Assert.That(reader.GetProviderSpecificValue(0), Is.EqualTo(expectedNpgsqlInterval));
Assert.That(reader.GetFieldValue<NpgsqlTimeSpan>(0), Is.EqualTo(expectedNpgsqlInterval));
}
}
}
#endregion
public DateTimeTests(string backendVersion) : base(backendVersion) { }
}
}